Seoul South Korea Train & Rail Guide 2026: Scenic Journeys & Getting Around by Rail

Seoul is one of the few big cities where you can step off a long-haul flight, ride a train from the airport's basement station to within a short walk of your hotel, cross the country at 300 km/h the next morning and be back in town for dinner, all without touching a taxi. The catch is that the rules keep shifting. The subway's base fare rose to 1,550 won in June 2025, foreign visitors now get their own short-term version of the city's unlimited Climate Card, and on 1 September 2026 the rival SRT high-speed trains were folded into KTX, cutting many long-distance fares by around ten per cent.

What follows is written for travellers from Singapore who already know how to use an MRT and want to know what is different here: which card to buy, when the airport express is worth the extra won, which Seoul station your KTX actually leaves from, whether the KORAIL Pass still adds up after the fare cut, and which rides are worth taking purely for the view out of the window. Won prices are what you pay at Korean stations and machines; HolidaySG prices appear live in Singapore dollars.

How Seoul's rail network fits together

It helps to picture Seoul's railways as three layers stacked on top of one another. At the bottom is the metropolitan subway, which most visitors use every day. Above it sits a newer layer of fast commuter express lines that reach the satellite cities in a fraction of the old time. On top are the national intercity trains: high-speed KTX, comfortable ITX intercity expresses, and slow, cheap Mugunghwa trains that cost roughly half the KTX fare. These leave from four different Seoul terminals, and you book a seat on them in an app rather than tapping a card at a gate. Once you know which layer a journey belongs to, almost every practical question (which card, which app, which station) answers itself.

The subway and its Korail-run cousins

The Seoul Metropolitan Subway is far bigger than the nine numbered lines on the tourist maps. Counting the named lines that spread into Incheon and Gyeonggi Province, it runs to more than twenty lines and well over 600 stations, which makes Singapore's MRT look tidy by comparison. Some lines are run by Seoul Metro, some by Korail and a few by private companies, but the same card works at every gate and transfers between operators are part of one fare.

Every station carries a number as well as a name. City Hall on Line 2 is 201, for example, and the first digit usually tells you the line, which helps when a name is hard to pronounce. Exits are numbered too, and big interchanges such as Seoul Station or Gangnam have a dozen or more. Hotels, restaurants and tour meeting points almost always describe themselves by exit number, so note it before you leave your room.

GTX-A, the new express commuter line

The first Great Train Express line opened in two pieces in 2024, Suseo to Dongtan and Unjeong to Seoul Station, with trains reaching 180 km/h deep underground. Seoul Station to KINTEX, the big exhibition centre in Goyang, now takes well under half an hour. The two halves are not yet joined; the Samseong link has slipped to around 2028. GTX-A costs more than an ordinary ride and is not covered by the tourist Climate Card.

Subway fares and transport cards in 2026

Seoul's subway charges by distance. Since 28 June 2025 an adult pays 1,550 won for the first 10 km with a transport card, then an extra 100 won for every further 5 km up to 50 km, and 100 won per 8 km beyond that. Teenagers pay 900 won and children 550 won. If you board before 6.30 a.m. there is an early-bird discount that brings the adult base fare down to 1,240 won, which is handy for anyone catching a dawn KTX. As a rough guide, a typical ride across central Seoul costs about what a medium MRT journey does at home.

You can still buy single-journey tickets from station machines, but they cost a little more than the card fare and carry a 500-won deposit that you reclaim from a refund machine at your destination. That is fine for one ride and tiresome for ten. Buy a card on day one.

Transfers between the subway and city buses are free within a set time window, as long as you tap your card when you get off the bus as well as when you get on. Forgetting to tap out is the most common way visitors end up paying a second full fare.

Which card should you buy?

T-money is the default. Buy one at GS25, CU or 7-Eleven, and it works on trains, buses and taxis across the country. The irritation is that top-ups at most machines are cash only. Small leftover balances can be refunded at convenience stores for a handling fee; larger ones at the T-money office near Seoul Station.

The WOWPASS prepaid card (from S$7.00 on HolidaySG) solves the cash problem differently. Its kiosks, at the airports and in many stations and hotels, take Singapore dollars and other currencies and load them as won for spending in shops, with a separate transport balance for the subway and buses. No money changer needed on day one.

Is the tourist Climate Card worth it?

The Climate Card began as an unlimited monthly pass for residents; the tourist version covers the subway and Seoul city buses for one to seven days. A three-day pass costs 10,000 won plus 3,000 won for the card, so it beats pay-as-you-go once you take about three rides a day, which most visitors easily manage.

The fine print matters, though. The card covers only the Seoul sections of the network. The Shinbundang Line, GTX-A, airport buses and intercity buses are excluded, and trips that cross into Gyeonggi or Incheon can trigger an extra charge when you tap out, so it is weak for day trips to Gapyeong, Suwon or the airport. Charge it on the day you start riding, not the night before. Since 17 March 2026, new machines at 273 stations on Lines 1 to 8 accept overseas credit and debit cards for it, with a small surcharge.

Riding the Seoul subway: etiquette, apps and timing

If you can ride the MRT at Raffles Place at 6 p.m., you can handle the Seoul subway. The trains are frequent, clean and air-conditioned, every station has platform screen doors, and announcements on the main lines are in English as well as Korean. A few local habits and a couple of good apps make the difference between coping and gliding through it.

Hours and crowds

Trains run from around 5.30 a.m. until roughly midnight, and some lines keep going to about 1 a.m. on weekdays. Last trains differ by station and direction, so if you are out late in Hongdae or Itaewon, check your app before the second round of drinks. The heaviest crowds are from about 7.30 to 9 a.m. and 6 to 7.30 p.m. Line 9's express trains are famously packed in the morning, and Line 2, the green loop through Gangnam, Jamsil and Hongdae, is busy most of the day. Line 9, Line 1 and the Gyeongui–Jungang Line all run some express trains that skip stops, so check the board before you board.

Etiquette that locals notice

The seats at the ends of each carriage are priority seats for older passengers, people with disabilities and anyone injured. Even when they are empty, younger locals tend to leave them alone, and it is wise to do the same. The pink seats in the middle of carriages are reserved for pregnant women and are also normally left empty. Queue to the side of the doors, let people off before getting on, and keep a backpack in front of you or at your feet at busy times. Eating on trains is frowned upon and phone calls are kept short and quiet; a packed Seoul carriage at 8 a.m. is remarkably still.

The apps that actually help

Google Maps will plan a public transport route in Seoul, but its walking directions are patchy because of long-standing restrictions on Korean map data. Most visitors find Naver Map or KakaoMap far better. Both have English menus, give step-by-step walking routes, name the exact exit to use, tell you which carriage door is closest to the transfer passage at your next interchange, and show real-time arrivals. A dedicated subway app such as Kakao Metro is useful as a backup map underground. Type place names in English and check that the Korean name it suggests matches your booking; there are several stations whose English names sound alike.

Suitcases and stairs

Large suitcases are allowed, but most stations have lifts at only some exits, and transfers at places like Express Bus Terminal or Jongno 3-ga involve long corridors and stairs. Avoid rush hour with luggage, check which exit has a lift, and use the coin lockers at major stations if you want to sightsee before check-in.

Incheon and Gimpo airport trains compared

Flights from Singapore land at Incheon, about 50 km west of central Seoul, after roughly six and a half hours in the air. The Airport Railroad, known as AREX, runs two kinds of service from stations in the basement of both terminals, and an extensive network of airport limousine buses covers the rest of the city. Which is best depends almost entirely on where you are staying.

When the AREX Express is worth it

The express trains run non-stop to Seoul Station with reserved, forward-facing seats and luggage racks, roughly every 30 to 50 minutes from just after 5 a.m. to late evening. The standard fare at the station is 13,000 won, and you will usually pay less by booking ahead, for example with HolidaySG's AREX Incheon Airport to Seoul express train ticket, from S$12.00. Express tickets are QR codes, not something you tap with T-money.

It is worth the extra money if your hotel is a short hop from Seoul Station, or if you are travelling with older parents or small children who need a guaranteed seat. On the way home, check whether your airline uses the City Airport Terminal at Seoul Station, where certain Korean carriers, including Korean Air and Asiana, let express passengers check in and drop bags for same-day Incheon flights. Foreign carriers are generally not included, so confirm before relying on it.

When the All-Stop train is the smarter choice

The all-stop train is a commuter service that you pay for with T-money or WOWPASS, and it calls at Gimpo Airport, Digital Media City, Hongik University (for Hongdae), Gongdeok and Seoul Station. If you are staying around Hongdae or Mapo, it is actually faster than taking the express into Seoul Station and doubling back. It is busier, with side-facing benches, but at less than half the price the extra quarter of an hour is easy to forgive. If you fly in from Jeju or Busan instead, Gimpo Airport is far closer to town and served by Lines 5 and 9 as well as AREX; Line 9's express trains are the quickest way to Yeouido and Gangnam.

The case for the bus

If you are staying in Gangnam, near COEX or around Jamsil, the train involves at least one transfer with luggage, often through long corridors. A limousine bus that stops outside your hotel is usually less effort. HolidaySG sells the 6103 airport limousine bus from Incheon T1 and T2 towards COEX, which drops you in the heart of Samseong-dong. Late at night, when the trains have stopped, buses and taxis are the only options anyway.

Seoul's long-distance stations and which trains use them

The single most common mistake visitors make with Korean trains is turning up at the wrong Seoul terminal. There are four main departure stations, plus a couple of secondary stops, and each serves a different part of the country. Your ticket will name the station; read it twice.

Seoul Station is the obvious choice if you are staying downtown, in Myeongdong, around the palaces or anywhere on Line 4. Yongsan, one stop south on Line 1, handles most trains to the south-west, which is the way to Jeonju's hanok village and the food city of Gwangju. Cheongnyangni, in the north-east, is the gateway to Gangwon Province and the mountains. Suseo, in the far south-east of the city, is the one people forget: if your hotel is in Gangnam, Jamsil or Songpa, a train from Suseo can save you 40 minutes of cross-town travel before you have even left Seoul. Since the September 2026 merger, both Seoul Station and Suseo trains appear in the same booking app, so compare departure stations as well as times when you search.

KTX after the September 2026 merger: booking, fares and on-board basics

Until this year, South Korea had two competing high-speed operators: Korail's KTX from Seoul and Yongsan stations, and the SRT from Suseo. From 1 September 2026 the SRT name has gone. Its trains now run as KTX, booking has been consolidated into a single app, and existing KTX fares have been lowered by about ten per cent on average to match SRT levels, a level that is due to hold for three years. The standard-class fare from Seoul to Busan, for example, is now around 54,400 won, down from 59,800. The merger also added extra services on several southern routes, and trains from both Seoul Station and Suseo now run to Busan under one brand.

How to book as a foreign visitor

The booking app is Korail+, the renamed and rebuilt successor to Korail Talk, which launched on 3 August 2026 with English, Japanese, Chinese, Thai and Vietnamese menus. You can also book on Korail's English website. Foreigners can register and book with a passport number; no Korean ID is needed. The ticket appears in the app as a QR code or reservation number. Most Korail platforms have no ticket barriers; staff check tickets on board against a handheld seat map, so keep your phone charged.

Overseas credit cards sometimes fail the 3-D Secure step on the website, and travellers often report that the app succeeds where the browser does not; failing both, a staffed counter will sell you a ticket if you show your passport. Sales open at 7 a.m., traditionally about a month ahead, with a longer window reported from October 2026. Cancellation charges rise as departure approaches, so read the rules before you pay.

Journey times you can plan around

The fastest Seoul to Busan trains, the limited-stop runs using the newer KTX-Cheongryong sets, take about 2 hours 15 to 20 minutes. Most services stop more often and take 2 hours 40 minutes to a little over 3 hours. Gangneung on the east coast is about 1 hour 30 to 50 minutes from Seoul Station or Cheongnyangni, with a standard fare of roughly 27,600 won from Seoul Station. Jeonju and Gyeongju both come in at around two hours. Compared with flying, the train wins almost every time once you count the trip to Gimpo and the security queues. For a fuller look at the trip south, read our Seoul vs Busan comparison.

On board

Standard class has two-and-two seating with fold-down tables and power sockets on most trains; first class, called "special" on Korean screens, is two-and-one with more legroom. Luggage racks at the carriage ends fill fast on Friday evenings. There is no regular trolley service, so do as Koreans do and buy a dosirak lunch box or gimbap at the station first. When a train is sold out, Korail often still sells discounted standing tickets: fine for a short hop, long for Busan.

Is the KORAIL Pass worth it in 2026?

The KORAIL Pass, often called the KR Pass, gives foreign visitors unlimited travel on Korail trains for a fixed period. It is sold only to tourists; residents and anyone staying longer than six months cannot use it. The adult versions currently come as a two-day flexible pass (any two days within ten) at around 121,000 won, a three-day consecutive pass at around 138,000 won, a four-day flexible pass at around 193,000 won and a five-day consecutive pass at around 210,000 won. Youth passes for ages 13 to 25 and Saver passes for two to five people travelling together are cheaper.

The pass covers KTX and Korail's conventional trains, from ITX-Saemaeul down to Mugunghwa. It does not cover the subway. You can reserve up to two seats per day without extra charge. It has historically excluded the SRT, and at the time of writing Korail had not clearly explained in English how the pass treats former SRT services from Suseo, so check before you plan around them.

Doing the maths after the fare cut

Here is the uncomfortable truth for pass fans. A Seoul to Busan return now costs about 108,800 won at standard fares, less than the cheapest adult pass. If your trip is Seoul-based with one excursion to Busan and back, buy point-to-point tickets. The pass makes sense only when it replaces at least two and a half Seoul to Busan length journeys, such as a fast loop of Seoul, Gangneung, Gyeongju, Busan and back inside a three- or five-day window.

The softer argument for the pass is freedom: no pricing each trip, and if plans change you simply reserve a different train. If that is worth a few thousand won to you, HolidaySG sells the KORAIL Pass (KR Pass) from S$62.07, depending on pass type and age. Everyone else should book single tickets and enjoy the lower fares. If you are still working out the overall shape of your trip, our first-timer's guide to Seoul tickets and passes sets out how the different passes fit together.

Scenic rail journeys from Seoul

Korea's best train views rarely come from its fastest trains, which spend much of their time in tunnels. The older routes follow rivers and coastlines, and some of the prettiest start inside Seoul and cost less than a plate of tteokbokki.

The Gyeongchun Line to Gapyeong and Chuncheon

The original Gyeongchun Line opened in 1939 as a single track that wound along the Bukhan River towards Chuncheon. In December 2010 it was replaced by a straighter, double-tracked and electrified line, and in 2012 Korail introduced the ITX-Cheongchun, an express with double-decker carriages. If you can, take a seat on the upper deck. The new line has its share of tunnels, but between them there are open stretches with views over the river valley and wooded hills, at their best in late October.

The ITX-Cheongchun leaves from Yongsan and Cheongnyangni, roughly every half an hour to forty minutes. Gapyeong is about 40 to 45 minutes from Cheongnyangni and around an hour from Yongsan, with fares of roughly 6,000 to 7,000 won. There is also a cheaper, slower Gyeongchun Line subway service, paid by T-money (not the Climate Card), that mostly starts at Sangbong and stops everywhere. From Gapyeong station the Nami Island ferry wharf is about 1.5 km away: around five minutes by taxi, a short ride on a local bus, or a twenty-minute walk. Nami Island's admission ticket includes the short ferry crossing.

Gangchon Rail Park: pedalling the old line

Not all of the old Gyeongchun track was ripped up. Between Gimyujeong and the old Gangchon station, a stretch of it is now Gangchon Rail Park, where you pedal a four-wheeled rail bike along the original rails. The course is about 8.5 km in total: around 6 km on the rail bike, which takes roughly 50 minutes, then a 20-minute ride on a small "romantic train" for the last 2.5 km to old Gangchon. Expect to pay around 40,000 won for a two-seater and 56,000 won for a four-seater, with electric-assist bikes for those who would rather not pedal hard. Rides run from about 9 a.m. to 5.30 p.m. between March and October, and until about 4.30 p.m. from November to February. Weekend and autumn slots sell out, so book.

Gimyujeong station is on the Gyeongchun Line subway, so you can reach the start entirely by rail. That said, the rail bike sits awkwardly with other sights in a single day by public transport. The Gangchon Rail Park, Petite France and Nami Island day tour links them up by coach, and the Nami Island and Gangchon Railbike day tour is a simpler version of the same idea.

KTX to Gangneung and the east coast

The high-speed line to Gangneung opened in late 2017, ahead of the PyeongChang Winter Olympics, and it is the fastest way from Seoul to the sea. Be honest about the view, though: the line burrows through the Taebaek mountains in a long series of tunnels, so you get glimpses of valleys around Pyeongchang rather than a panorama. The payoff comes on arrival, with beaches and the Anmok coffee cafés a short taxi ride away, and some trains continue towards Jeongdongjin, whose station sits almost on the sand.

The east coast railway itself became complete on 1 January 2025, when the last gap in the Donghae Line between Pohang and Samcheok opened. Conventional trains now trace much of the coast between the Busan area and the north-east, a route for travellers who would rather watch the sea than save an hour; check the Korail+ app for current services.

The Gyeongui–Jungang Line east along the Han

For the price of a subway ride, the Gyeongui–Jungang Line takes you east out of Seoul along the Han River. After Deokso the city thins out, the river widens and the line runs past Paldang and Ungilsan to Yangsu, the station for Dumulmeori, where the Bukhan and Namhan rivers meet among old trees and morning mist. It is around a twenty-minute walk from the station. Much of the old track bed along this stretch has become a riverside cycle path with converted rail tunnels, and bike rental shops near some of the stations cater to day trippers. Fares are paid by T-money and rise with distance; expect a couple of thousand won each way.

Korail's tourist trains

Korail also runs themed tourist trains, such as the V-train through the Baekdudaegan canyons and the A-train to Jeongseon. They are charming but run on limited, seasonal timetables, and several have been paused or retired over the years. Treat them as a bonus if the dates line up, and check the Korail+ app for what is actually running.

If you are timing any of these rides for autumn colour, our Korea autumn foliage timing guide breaks down when the leaves turn in each region.

Scenic rides inside the city for the price of a subway fare

You do not need to leave Seoul for a good train view. Several subway lines cross the Han River on bridges rather than in tunnels, and a ride across at golden hour costs the same 1,550 won as any other trip. Stand by the door window on the downstream side if you can, and avoid rush hour, when you will see more elbows than skyline.

The best Han River crossings

Line 2 between Hapjeong and Dangsan crosses on the Dangsan Railway Bridge, with Yeouido's towers on one side and the wide western reaches of the river on the other. It slots neatly into a Hongdae afternoon. Line 3 between Oksu and Apgujeong crosses on the Dongho Bridge; Oksu station is above ground with views towards Eungbongsan hill, which turns yellow with forsythia in early April. Line 7 runs along the lower deck of the Cheongdam Bridge, and its station at Ttukseom Hangang Park drops you right on the riverbank, where locals bring takeaway chicken and beer on summer evenings. Line 4 between Ichon and Dongjak crosses on the Dongjak Bridge, and Line 1 between Yongsan and Noryangjin uses the old Hangang Railway Bridge, which leads you towards the Noryangjin fish market. Line 2 also crosses again further east, between Gangbyeon and Jamsillaru, with Lotte World Tower looming ahead.

Lines 5, 8 and 9 tunnel under the river. If you only have time for one crossing, make it Line 2 from Hapjeong to Dangsan.

Rail-friendly outings: Yeouido and 63 SkyPicnic

Yeouido, the island of banks, broadcasters and riverside parks, is a natural pairing with the Line 2 crossing. The gold-glass 63 Building stands at its south-eastern corner, about a 15 to 20-minute walk from Yeouinaru station on Line 5, or a similar distance from Daebang on Line 1. High up in the tower, 63 SkyPicnic pairs city views with indoor light and art installations like the one below, and it is a good rainy-day answer when the river walk is off.

Everland by subway and light rail

Everland, the big theme park in Yongin south of Seoul, is the best example of how far the rail network can take you. Ride the Suin–Bundang Line to Giheung, transfer to the Everline, a driverless light-rail line that runs above the streets, and get off at Jeondae–Everland, where a short shuttle bus takes you to the gates. From Gangnam it takes around 90 minutes, longer from the north of the city, and it costs a few thousand won on T-money. Direct buses from Gangnam can be quicker on a quiet morning, but the train is immune to weekend traffic, and children tend to love the elevated Everline itself.

Book Everland tickets ahead to skip the ticket queue, and if you are torn between the two big parks, our Lotte World vs Everland comparison lays out the differences, including the fact that Lotte World connects directly to Jamsil station on Lines 2 and 8.

Planning rail travel around seasons and holidays

Timing matters as much as route on Korean railways, for two reasons: national holidays and weather.

Seollal and Chuseok

During the two big family holidays, Seollal (Lunar New Year, usually late January or February) and Chuseok (the autumn harvest festival, usually in September or early October), much of the country travels home at once. Korail sells tickets for these periods in a special advance sale and the popular trains go within hours. If your dates overlap, either book the moment sales open, travel on the holiday itself when traffic briefly eases, or base yourself in Seoul and ride the subway, which becomes pleasantly quiet as the city empties. Outside holidays, the busiest regular times are Friday evenings out of Seoul and Sunday afternoons back in.

Weather by season

Spring and autumn are the classic rail seasons. Cherry blossoms reach Seoul in early April, and the valleys east of the city glow from mid-October into early November, a little earlier in the Gangwon mountains. Summer brings the jangma monsoon from late June through July, then humid heat that will feel familiar to anyone from Singapore; trains are strongly air-conditioned, so carry a light layer. Winter is the real contrast with home: January mornings regularly drop below freezing and outdoor platforms are bitterly cold, though snow makes the run to Gangneung look like a postcard.

If you are watching costs, our guide to Seoul on a budget has more ideas for keeping a Seoul trip affordable beyond transport.

Frequently asked questions

Can I tap my Singapore credit card at Seoul subway gates?

Do not count on it. Most visitors still need a Korean transport card such as T-money, WOWPASS or the tourist Climate Card to pass the gates. The good news is that since March 2026 new machines at hundreds of stations accept overseas cards for buying and charging the short-term Climate Card, and WOWPASS kiosks load foreign cash. Get a card at the airport or your first convenience store and the problem disappears.

What time does the Seoul subway stop running?

Trains generally run from about 5.30 a.m. to around midnight, and some lines carry on to about 1 a.m. on weekdays. Last departures vary by station and direction, and services finish earlier on some suburban branches, so check the last train in Naver Map or KakaoMap before a late night out. After that, night buses and taxis take over, and most taxis accept T-money as well as credit cards.

Should I take the KTX or fly from Seoul to Busan?

For most travellers the KTX is the better choice. The fastest trains reach Busan in about two and a quarter hours from central Seoul, with no airport transfer or security queue, and standard fares fell to around 54,400 won in September 2026. Flying makes sense only if you are already near Gimpo, have a very cheap fare or are connecting to another flight. The train also lets you stop in Daejeon, Daegu or Gyeongju on the way.

Do I need to book KTX tickets in advance?

On weekdays you can often buy a ticket on the day, but Friday evenings, Sunday afternoons and holiday periods sell out, sometimes weeks ahead. Book through the Korail+ app with your passport number as soon as your plans are fixed. If your preferred train is full, check the alternative station, since Seoul Station and Suseo trains to Busan now appear side by side, or look for standing tickets.

Is the AREX Express worth paying more than the All-Stop train?

It is if you are staying near Seoul Station, Myeongdong or City Hall, travelling with children or older relatives, or simply want a guaranteed seat after an overnight flight. It saves around a quarter of an hour and a lot of jostling. If your hotel is in Hongdae, Mapo or Gongdeok, the all-stop train is cheaper and actually gets you there faster, because the express does not stop in those areas.