One of the easiest ways to travel between cities in South Korea is by KTX, and despite how confusing the booking process can look online, the actual journey is very straightforward.
I’ve taken Korean trains on multiple trips over the years, and once you’ve worked out which website to use and which station you’re actually departing from, there really isn’t much to it. You don’t need to arrive hours in advance, there is no airport-style check-in and, for most journeys, you simply turn up with your ticket, find the correct platform and get on the train.
The part that tends to confuse first-time visitors happens before that.
Search for “KTX tickets” and you’ll find KORAIL, third-party booking sites, KORAIL Passes, different train names and, until recently, SRT listed as a separate high-speed rail system. Korea also changed its high-speed rail setup in September 2026, so quite a few older guides online are now describing a booking system that no longer works in exactly the same way.
If you’re simply trying to get from Seoul to Busan, Seoul to Daegu or another major Korean city, you don’t need to understand every train type. This is the process I would use now.
About This Guide
This guide is for international visitors trying to buy KTX train tickets in South Korea without accidentally ending up on an unofficial booking site or choosing the wrong station.
I’ve kept the focus on the things that actually matter when planning a trip: where to buy tickets, when they go on sale, what changed with KORAIL+ in 2026, whether a KORAIL Pass is worth buying, which Seoul station you should choose and what to expect when you arrive for your train.
Korea’s rail system is extensive, but most tourists don’t need to learn the whole network. If you’re travelling between the major cities, the KTX will usually be the train you’re looking for.
Who Is This Guide For?
This guide is particularly useful if this is your first trip to Korea and you’re planning journeys such as Seoul to Busan, Seoul to Daegu, Seoul to Gyeongju, Seoul to Jeonju or other longer intercity routes.
It’s also for anyone who has searched for a journey several months in advance and wondered why no tickets are showing up yet, or who is trying to decide whether to book through KORAIL or one of the many third-party websites that appear in Google.
And if you’ve travelled in Korea before, there is one important reason to read an updated guide: the high-speed rail system changed in September 2026.
Key Takeaways
- I recommend buying KTX tickets directly from KORAIL, either through the official foreign-language website or the current KORAIL+ system.
- KTX tickets generally become available one month before departure, so a blank search several months ahead does not mean the train is sold out.
- From September 2026, Korea’s KTX and former SRT high-speed services were integrated, so older advice treating them as completely separate systems may now be outdated.
- Always check the actual station name, not just the city. Seoul Station, Yongsan, Cheongnyangni and Suseo are in very different parts of Seoul.
- You do not automatically need a KORAIL Pass. For one or two long-distance journeys, individual tickets are often simpler.
- Standard Class is perfectly comfortable for most trips.
- I would still book popular journeys once my dates are fixed, particularly for weekends and major Korean holidays.
What Changed With KTX Tickets in 2026?
Until September 2026, visitors often had to think about KTX and SRT as two separate high-speed rail systems. KTX was operated by KORAIL, while SRT was associated particularly with services from Suseo Station.
That distinction became much less relevant from 1 September 2026, when the two high-speed operations were integrated. The former SRT services were brought into the KTX system, and SRT trains were renamed KTX-Sancheon as part of the change. This also means that Suseo services now sit within the broader KTX booking system rather than requiring tourists to think of them as a completely separate railway.
KORAIL also introduced KORAIL+, the new integrated rail app. If you’ve read an older Korea travel guide telling you to download KorailTalk, KORAIL+ is the newer version you should now be looking for. For tourists, the practical benefit is that searching for high-speed trains from Seoul and Suseo is much less fragmented than it used to be.
You should still pay close attention to the departure station, though. A train leaving from Suseo is not leaving from Seoul Station, and those stations are nowhere near each other.
KTX travel & train types
Korail offers different travel types and train types, which can be confusing for first-time travellers.
In a nutshell, travel type would refer to the different scenic train routes offered by Korail. Type of train would typically refer to the train fleets:
- KTX is the fastest and most convenient for long-distance, high-speed travel between major cities.
- ITX-Chuncheon is a great option for tourists visiting destinations near Seoul, like Chuncheon.
- ITX-Saemaeul provides a mid-level service, combining speed with comfort for intercity travel.
- Nuriro serves short regional routes and provides a comfortable, affordable option for shorter distances.
- Mugunghwa is slower but widely accessible, offering a cost-effective way to reach smaller towns and rural areas.
Tip: For most journeys between major cities like Seoul and Busan, I always pick the Normal Train and KTX options.
Buy KTX Tickets online
One of the easiest and most convenient ways to purchase KTX tickets is through the Korail website or the Korail Talk mobile app.
How to buy KTX tickets online:
- Visit the Korail Website: Go to www.letskorail.com, the official site for Korail (the company that operates the KTX).
- Select language: At the top right corner, you can switch the language to English for easier navigation.
- Enter travel details: Input your departure and destination stations, the date of travel, and the number of passengers. Click “Search” to see available trains.
- Choose your train: A list of available KTX trains will appear, showing the departure time, arrival time, and ticket price.
- Select ticket type: Choose between Standard Class, First Class, or Economy Class. If you prefer, you can also select a seat on the Quiet Car for a more peaceful journey.
- Make payment: After selecting your desired train, proceed to the payment page where you can pay using credit or debit cards (Visa, MasterCard, etc.). Once payment is confirmed, you’ll receive an electronic ticket via email.
The Korail Talk app (Google Play, Apple) offers a similar process. You can consider using this mobile-friendly option for booking KTX tickets on the go.
Tip: Be careful not to buy your KTX tickets from third-party websites, such as Rail Ninja, Koreantrain.com etc.! These are NOT the official Korail website and tickets CAN be voided with no refunds!
Purchase KTX Tickets at the train station
If you’re already in Korea or prefer buying tickets in person, you can purchase KTX tickets directly at any KTX station.
How to buy KTX tickets at the station:
- Visit a KTX Station: Head to any major KTX station, such as Seoul Station, Busan Station, or Daegu Station.
- Find the ticket counter: KTX ticket counters are clearly marked and often have English-speaking staff to assist foreign travelers.
- Use a self-service machine: Most KTX stations also have self-service ticketing machines, which offer multiple language options (including English, Chinese, and Japanese). Simply follow the on-screen prompts to select your destination, date, and seat class.
- Make payment: At the ticket counter or machine, you can pay by cash or card. After payment, you’ll receive a printed ticket with all your travel details.
Tip: Tickets tend to sell out early on weekends and during public holidays. If you don’t purchase early, you may end up having to stand the whole ride, or even worse – with no available ticket! I personally still recommend purchasing online at least a month in advance if you already have your itinerary locked in.
Use a KTX Rail Pass for unlimited travel
If you’re planning to travel extensively in Korea, consider purchasing a Korail Pass (sometimes called the KTX Rail Pass). This pass allows unlimited travel on the KTX and other Korail-operated trains for a set number of days.
Note: This pass is ONLY available for foreigners and will not be available for anyone with Korean nationality.
Types of Korail Passes
You can choose between a flexi pass with x number of days of unlimited travel, or 3 or 5 consecutive days of travel.
You can purchase the Korail Pass online through the official Korail website or at select train stations in Korea. Keep in mind that you must reserve a seat for each journey, even with a Korail Pass.
How to reserve a seat with a Korail Pass
Even with a Korail Pass, you still have to do a separate booking to reserve a seat for each trip! Here is how you should reserve your seat with a Korail Pass:
Online seat reservation:
- Visit the Korail Website: Go to the Korail website and log in with your pass details.
- Select travel details: Choose your travel date, departure, and destination, and search for available trains.
- Reserve your seat: Once you select a train, confirm your seat reservation. You’ll receive a confirmation email with your seat details.
In-person reservation:
- At the station: Visit the ticket counter or use a self-service machine to reserve your seat.
- Show your Korail Pass: You’ll need to show your Korail Pass when reserving your seat. After reservation, you’ll receive a printed ticket showing your seat number.
Tips for buying KTX Tickets
Book in advance
KTX trains can fill up quickly, especially during weekends, holidays, and peak travel seasons like Chuseok or Seollal (Korean Lunar New Year). Book your tickets as early as possible if you want to secure your preferred departure time and seat class.
Book first class for a premium experience
If you’re willing to spend a little extra, First Class offers larger seats, more legroom, and additional amenities like complimentary snacks and drinks. It’s a great option for longer journeys, such as the one from Seoul to Busan.
Check for discounts
KTX often offers discounts for seniors, children, groups, and early bookings. If you’re traveling with a group or qualify for one of these discounts, you can save on your fare by selecting the appropriate option during the booking process.
The Easiest Way to Buy KTX Tickets Online
For most international visitors, I would still start with the official KORAIL foreign-language website.
The current official international booking site is at:
korail.com/global
You can search for trains without having to understand the Korean-language version of the website, and the booking flow is relatively straightforward once you know what you’re looking for.
Enter your departure station, destination, date and number of passengers. The search results will show the trains available around your selected time.
From there, check three things carefully:
Departure station
Departure time
Train type
The departure station is the one I would pay the most attention to.
When people say they’re taking the KTX “from Seoul,” they often assume this automatically means Seoul Station. It doesn’t.
Depending on the route, your most convenient train could depart from Seoul Station, Yongsan, Cheongnyangni or Suseo.
Once you’ve chosen the train, proceed with the passenger details and payment shown on the booking system.
I prefer buying directly from KORAIL because it keeps the booking relatively simple. If something changes, you’re dealing directly with the rail operator rather than trying to work out the cancellation rules of a third-party booking platform.
Should You Use KORAIL+?
If you expect to take several trains while you’re in Korea, KORAIL+ is worth having on your phone.
The app replaced the older KorailTalk setup in 2026 and was introduced alongside the integration of Korea’s high-speed rail services.
The booking process has also been simplified compared with the older app, so you can search and adjust train times more easily from the same screen.
For someone taking only one KTX journey and booking everything before arriving in Korea, I don’t think installing an app is essential. The KORAIL website is enough.
If you’re moving around the country and expect to make or change bookings while travelling, the app becomes considerably more useful.
How Far in Advance Can You Buy KTX Tickets?
This is probably the question I see people get confused about most often.
KTX tickets generally become available one month before the departure date, from 7am Korea time.
So if you’re planning a Korea trip six months in advance and the KORAIL website isn’t showing any trains yet, don’t panic.
They haven’t sold out. They simply haven’t been released.
I also wouldn’t say that everyone needs to sit online at exactly 7am the moment tickets become available.
For an ordinary weekday outside a particularly busy period, you will usually have more flexibility.
I would book early if your itinerary depends on a specific train, however, particularly if you’re travelling on a Friday evening, weekend or around one of Korea’s major holidays.
Seollal and Chuseok are the two periods I would take especially seriously.
Huge numbers of people travel domestically during these holidays, and popular trains can become much harder to secure.
My approach is simply to book once my travel date becomes available if I already know exactly when I want to travel.
Can You Buy KTX Tickets at the Station?
Yes.
You do not need to buy your KTX ticket online.
At major railway stations such as Seoul Station, Busan Station and Daegu Station, you’ll find ticket counters as well as self-service machines.
This can be useful if your itinerary is flexible and you’d rather decide your travel time once you’re already in Korea.
The downside is availability.
If you want a particular train, there is little benefit in deliberately waiting until you reach the station when you could have booked the same journey beforehand.
I would happily buy at the station for a spontaneous journey where I didn’t care whether I travelled at 1pm or 3pm.
I wouldn’t rely on this approach if I needed to catch one particular train to Busan before checking into a hotel or making another reservation.
Also, KTX tickets are sold at railway stations, not ordinary Seoul subway stations.
Should You Buy KTX Tickets From Third-Party Websites?
There are plenty of websites selling Korean train tickets, and some of them appear above KORAIL when you search online.
I don’t think using a third-party booking service is automatically a disaster, but I also don’t see much reason to use one when the official KORAIL booking site is available in English.
The main things I would compare are the final ticket price, any booking fee and the cancellation conditions.
A third-party platform may be convenient if you already use the service for the rest of your Korea trip, but make sure you’re comparing the actual final cost rather than assuming the first result in Google is the official railway website.
For my own trips, I’d rather book through KORAIL.
Seoul Station, Yongsan, Cheongnyangni or Suseo?
This is one of those mistakes that sounds difficult to make until you’re actually booking.
Seoul has multiple major railway stations.
Seoul Station is the one most tourists will recognise and is particularly useful if you’re staying around Myeongdong, central Seoul or the western side of the city.
Yongsan Station serves a number of routes and may be more convenient depending on where you’re travelling.
Cheongnyangni Station is used for various eastern routes.
Suseo Station is in southeastern Seoul and now forms part of the integrated KTX high-speed system.
These aren’t interchangeable.
If your hotel is in Myeongdong and you’ve accidentally booked a train from Suseo because you only looked at the departure time, you’ll have a much longer journey to the station than you expected.
Always check the station before paying.
I usually put the station into Naver Maps as soon as I’m considering a particular train and check how long it will take to get there from the hotel.
Which KTX Class Should You Book?
For most travellers, Standard Class is perfectly fine.
I don’t think you need First Class simply because the journey is a few hours long. KTX trains are already comfortable enough for normal intercity travel, and I’d generally rather spend the difference elsewhere unless there is a specific reason I want the extra space.
First Class gives you a more spacious journey and may be worth considering if the fare difference isn’t particularly large, you’re travelling a long distance or you simply want a more comfortable ride.
But I wouldn’t treat it as one of those upgrades that is necessary to enjoy the KTX.
If you’re travelling from Seoul to Busan on a normal holiday, Standard Class does the job.
Do You Need a KORAIL Pass?
Probably not, unless you’re doing quite a lot of rail travel.
The KORAIL Pass is intended for international visitors and allows eligible travellers to use KORAIL trains over a selected number of travel days.
The current pass structure includes 2-, 3-, 4- and 5-day select passes, where you choose the days you want to travel within the permitted period.
It sounds like an obvious purchase if you know you’re taking the KTX, but don’t assume that a rail pass automatically saves money.
Before buying one, write down the train journeys you’re actually planning.
For example:
Seoul → Busan
Busan → another city
Another city → Seoul
Then compare the individual fares with the KORAIL Pass price.
If you’re moving around the country intensively over several days, the pass becomes much more interesting.
If you’re simply travelling from Seoul to Busan and then returning to Seoul several days later, individual tickets may be easier.
Another thing worth knowing is that having a KORAIL Pass does not mean you can forget about seat reservations. You’ll still want to reserve seats for the trains you intend to take.
What Happens at the Station?
This part is much easier than the booking process makes it sound.
There is no airport-style check-in.
You don’t need to arrive two hours before departure.
Once you have your ticket, check the departure board for your train and platform, then make your way to the platform when it opens.
I still prefer arriving around 20 to 30 minutes before departure, particularly at Seoul Station.
That isn’t because the railway requires it. I simply don’t enjoy rushing through a huge unfamiliar station with luggage while watching the departure time get closer.
It also gives you enough time to buy food or drinks before boarding.
Korean railway stations have plenty of shops, bakeries and convenience food options, so buying something for the journey is very easy.
Finding Your Carriage and Seat
Your ticket will show the train, carriage and seat number.
When you reach the platform, look at the carriage markings before the train arrives. These tell you approximately where each carriage will stop.
This becomes especially useful when you’re carrying a suitcase.
If you’re waiting in roughly the correct place, you can board your own carriage instead of getting onto the opposite end of the train and dragging your luggage through several cars.
Once you’re onboard, find your allocated seat and settle in.
There normally isn’t a ticket gate where you scan yourself onto every KTX train in the way you would enter the Seoul subway.
Just make sure your ticket remains accessible during the journey in case it needs to be checked.
Taking Large Luggage on the KTX
One thing I like about train travel in Korea is that luggage is considerably less stressful than flying.
You don’t have to check your suitcase in.
Smaller bags can normally go on the overhead racks, while larger luggage can be placed in the available luggage storage areas.
The only problem is that larger storage spaces can fill up.
If I’m travelling with big suitcases, I prefer being ready to board rather than waiting until everyone else has already got on.
That gives us a better chance of putting the luggage somewhere sensible.
I would keep passports, wallets, electronics and anything valuable with me rather than inside a suitcase stored away from my seat.
What If the KTX Train You Want Is Sold Out?
Try another departure before changing your entire itinerary.
Popular routes such as Seoul to Busan have multiple trains throughout the day, and one departure can be sold out while another one an hour later still has seats.
You can also check whether a slower train serves the same destination.
It isn’t as fast as taking the KTX, but sometimes changing the train type is easier than changing an entire day of your holiday.
The exception is major Korean holiday periods.
If you’re travelling around Seollal or Chuseok, I would be much more cautious about assuming that another convenient seat will eventually appear.
Can You Cancel a KTX Ticket?
Yes, although the amount refunded can depend on when you cancel.
If you’ve booked through KORAIL and your plans change, deal with the cancellation before the train departs whenever possible.
Once departure time has passed, the refund process becomes more restrictive and may require dealing with the railway station.
This is another small reason I prefer booking directly with KORAIL rather than adding another company between myself and the railway.
If I’m changing plans, I want to be working with the original ticket booking rather than figuring out a separate agent’s cancellation rules.
Do Children Need KTX Tickets?
KORAIL offers reduced fares for children, and the rules depend on age and whether you want a separate seat.
This is particularly relevant if you’re travelling Korea with a toddler.
For very young children, it may be possible to travel without purchasing a separate seat when the child sits with the accompanying adult, while discounted fares apply when you want them to have their own seat.
If you’re travelling with a toddler for a longer journey, I would seriously consider whether having that extra seat is worth paying for even if they technically don’t need one.
Several hours with a toddler on your lap can feel considerably longer than the timetable suggests.
Is KTX the Best Way to Travel Around Korea?
For journeys between major cities, it is often my first choice.
The biggest advantage isn’t simply speed.
Railway stations tend to be much easier to reach than airports, there’s no lengthy airport check-in process, luggage is straightforward and you arrive much closer to the city centre at the other end.
For a route such as Seoul to Busan, that makes the KTX particularly convenient.
There are situations where a bus, domestic flight or rental car makes more sense, especially for destinations away from the high-speed rail network.
But if two cities are well connected by KTX, I would normally check the train first.
Frequently Asked Questions About KTX Tickets
What is the official website for buying KTX tickets?
The official international booking site is the KORAIL Global website at korail.com/global.
This is the website I would use before looking at third-party sellers.
How early can you book KTX tickets?
KTX tickets generally become available one month before departure, starting at 7am Korea time.
If your trip is several months away and you cannot see any trains yet, the tickets probably haven’t been released.
What is KORAIL+?
KORAIL+ is KORAIL’s newer integrated rail app, introduced in 2026.
It replaced the older KorailTalk setup and became particularly relevant after KTX and the former SRT high-speed services were integrated in September 2026.
Does SRT still exist separately from KTX?
From September 2026, Korea integrated the KTX and SRT high-speed operations under KORAIL, with the former SRT services incorporated into the KTX system.
This is why older travel guides that tell you to search two completely separate high-speed rail systems may now be outdated.
Can I buy a KTX ticket on the day?
Yes, provided seats are still available.
You can buy tickets online or at railway stations, but waiting until the day itself gives you less choice of departure times.
Should I book KTX tickets in advance?
If you have a fixed itinerary, I would.
You don’t necessarily need to book the moment tickets are released for an ordinary weekday, but popular departures can fill up, particularly on weekends and around Korean holidays.
Do I need to print my KTX ticket?
For modern online bookings, I would keep the ticket readily accessible on your phone.
If the booking system gives you the option to download or save the ticket, I would do that before travelling so you’re not relying on mobile data at the station.
Can foreigners buy KTX tickets?
Yes.
International visitors can buy tickets directly through KORAIL’s foreign-language booking website, at Korean railway stations and through the relevant KORAIL booking services.
Can I use an overseas credit card to buy KTX tickets?
KORAIL’s foreign booking system supports eligible overseas-issued cards.
If a payment fails, it can sometimes be worth trying a different card rather than immediately assuming the train booking itself is the problem.
How early should I arrive for the KTX?
There is no need to arrive hours beforehand.
I personally like arriving around 20 to 30 minutes early because it gives me enough time to find the correct platform and carriage without rushing.
Is KTX Standard Class comfortable?
Yes. For most journeys, I find Standard Class perfectly adequate. First Class offers more space and comfort, but I wouldn’t consider it necessary for the average tourist journey.
Can you bring luggage onto the KTX?
Yes. Smaller bags can go on overhead racks, while larger suitcases can use the available luggage storage spaces.
If you’re travelling during a busy period, board promptly because the larger luggage spaces aren’t unlimited.
Is the KORAIL Pass worth buying?
It depends entirely on your itinerary. If you’re taking several expensive long-distance trains within a short period, it may save money. If you’re only taking one or two KTX journeys, individual tickets can be simpler and may work out cheaper.
Compare your actual planned fares before buying the pass.
Which Seoul station does the KTX leave from?
There is no single answer. Depending on the route, high-speed trains can depart from Seoul Station, Yongsan, Cheongnyangni or Suseo. Always check the exact station shown on your ticket before booking.
Can I take the KTX from Seoul to Busan?
Yes. Seoul to Busan is one of the most popular KTX routes and is one of the journeys where taking the high-speed train makes particularly good sense.
Is KTX difficult to use if you don’t speak Korean?
Not really.
The official foreign KORAIL website is available for international visitors, major railway stations have English signage, and the ticket itself tells you the information you actually need: your train, departure time, carriage and seat.
Once you’ve booked the correct train, taking the KTX is one of the easier parts of travelling around Korea.
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