KOREA TRAVEL DECISION GUIDE

How to Book Former SRT Trains After the KTX–SRT Merger

Since September 1, 2026, you do not book SRT as a separate train brand. To book former SRT trains after the KTX–SRT merger, search and buy a <strong>KTX</strong> ticket through KORAIL, entering <strong>Suseo</strong as your station when that is the most convenient Seoul-area terminal. The key choice is now Suseo versus Seoul or Yongsan—not KTX versus SRT.

Some links on this page are affiliate links. If you book through them, we may earn a commission at no extra cost to you.

Last reviewed: 2026-11-05

Best for: travelers staying in southeast Seoul, Gangnam, Jamsil, or nearby areas; visitors who want a Suseo departure; and travelers buying individual intercity rail tickets with an overseas-issued card.

Consider another approach if: you are buying a KORAIL Pass specifically for a Suseo service, or you are traveling during Seollal, Chuseok, or another major holiday period. Pass eligibility and holiday reservation procedures should be rechecked before you pay.

The short answer: search KTX, not SRT

KTX and SRT began integrated operation under the KTX brand on September 1, 2026. Former SRT services, including trains using Suseo Station, are now sold in the integrated KTX system rather than through a separate SRT booking option.

• Use the official KORAIL foreign-language booking site as the default booking channel.
• Alternatively, use the KORAIL+ app if you prefer booking on a phone.
• Enter Suseo as your departure or arrival station if it suits your itinerary.
• Select an available KTX result for your route and time.
• Do not spend time looking for an SRT-only tab, old SRT app, or separate SRT fare.

This change was confirmed in SR's post-merger booking notice and the Korean government's integration announcement. Check SR's official notice and the government integration announcement for the current official wording.

1. Choose the Seoul terminal, not the old train brand

The practical question is no longer “Should I take KTX or SRT?” It is: Which station makes the whole journey easier?

Suseo remains a high-speed rail terminal. If older travel advice recommended “SRT from Suseo,” the modern equivalent is to search Suseo → your destination and choose an available KTX departure.

Choose Suseo when it reduces your door-to-door travel time

Suseo can be the sensible choice when you are staying in southeast Seoul or arriving via connections convenient for Gangnam, Jamsil, or southern Seoul. It may save substantial local-transit time compared with crossing the city to Seoul Station or Yongsan Station.

Compare Seoul Station and Yongsan when they are easier for your accommodation

Seoul Station is often more convenient for central Seoul and airport-rail connections. Yongsan can be more convenient for parts of western or central Seoul. The best terminal depends on your hotel, onward subway journey, departure time, and live train availability.

• Former SRT-style departure: search Suseo.
• Central Seoul or airport-rail connection: compare Seoul Station.
• Western or central Seoul convenience: compare Yongsan.

Important limit: not every route and departure serves every Seoul terminal. Search the specific date and route rather than assuming a timetable from older SRT guides still applies. Timetables and available inventory can change, so recheck the live KORAIL results before booking.

2. Use the right booking channel for your payment situation

For most international visitors, the official KORAIL English-language website is the simplest starting point. KORAIL states that its foreign-language service supports overseas-issued credit cards, avoiding the need to use the former SRT website or app.

Recommended: KORAIL's official foreign-language site

Use KORAIL's official international booking site when you want direct booking, live results, and a straightforward point-to-point ticket. It is the best default if your foreign card works successfully at checkout.

You generally do not need to begin with an old SRT account. Search your stations, select the KTX departure, and complete the booking through the current KORAIL process.

Use KORAIL+ if you prefer an app

KORAIL+ is the integrated app introduced with the KTX–SRT operation. It is a reasonable option for travelers who prefer having their ticket on a phone. App availability, language support, login requirements, and payment behavior can change by device and country, so check the current app listing and KORAIL guidance before relying on it.

If your foreign card fails

If the official checkout does not accept your card, use a practical fallback rather than repeatedly trying outdated SRT channels:

• Try an authorized international sales platform such as Klook, which KORAIL has announced as a ticket-sales partner for international visitors.
• Buy at a staffed station counter if you are already in Korea and have enough time before departure.
• Use a different eligible payment card if available.

Third-party platforms can be useful for international payment methods and language support, but they may have different exchange rates, service fees, refund handling, ticket-delivery methods, and customer-service processes. Compare the final total and cancellation terms before paying. These terms are freshness-sensitive, so recheck them at the time of purchase.

3. Buy a regular ticket unless your pass eligibility is confirmed

If you need one particular Suseo departure, a regular point-to-point KTX ticket is the lower-risk choice. It gives you a confirmed train, station, date, and seat without requiring you to interpret uncertain post-merger pass rules.

A KORAIL Pass can still make sense for travelers taking multiple eligible long-distance rail journeys in a short period. However, travelers should not assume that a former SRT service automatically became pass-eligible just because it is now shown as KTX.

The current English-language KORAIL Pass page still states that SRT is excluded, while former SRT services have been absorbed into the KTX booking system. That creates an important practical ambiguity for Suseo services.

• Choose a regular ticket if you need a specific Suseo train or do not want eligibility uncertainty.
• Consider a KORAIL Pass only if its savings look meaningful across several journeys and KORAIL confirms that your exact intended trains can be reserved with the pass.

Recheck before purchase: pass terms, reservation rules, supplement requirements, and Suseo-service eligibility may change after the merger. Confirm with KORAIL customer support or the current pass conditions rather than relying on an older blog post.

When tickets go on sale

Ordinary rail tickets can generally be offered from up to two months before departure under the newer booking-window policy. For popular Friday, Sunday, and peak-season departures, it is sensible to check as soon as your travel date enters the booking window.

Do not treat two months as a universal rule. Seollal, Chuseok, and other special periods can use dedicated reservation dates, separate booking pages, queues, or procedures. Recheck KORAIL's notices for your travel dates before making plans around a particular departure.

Step-by-step: booking a former SRT service from Suseo

1. Open the official KORAIL international booking site.
2. Set your origin to Suseo.
3. Enter your destination, travel date, and approximate preferred time.
4. Review the available KTX results. Do not expect an SRT label.
5. Compare departure time, arrival time, seat class, and the local transit needed at each end.
6. Select your preferred train and enter passenger details exactly as required by the booking form.
7. Pay with an accepted overseas-issued card.
8. Save the booking confirmation and check the ticket-display instructions before travel.

If no suitable Suseo train appears, repeat the search from Seoul Station and Yongsan. A different terminal may offer a better departure time or easier connection on that date.

Common mistakes to avoid

• Searching only for “SRT.” The separate SRT booking brand is no longer the standard route to a ticket.
• Assuming Suseo disappeared. Suseo is still a high-speed rail station; its services are now searched as KTX.
• Choosing a station solely because an older guide recommended it. Compare the entire journey from your hotel to your final destination.
• Buying a rail pass before checking the specific Suseo service. The public English pass wording has not fully resolved the post-merger situation.
• Assuming normal advance-sale dates apply during major holidays. Holiday sales can follow separate rules.
• Relying on a third-party listing without checking final terms. Currency conversion, fees, refund rules, and support channels may differ from direct KORAIL booking.

FAQs

Why can I no longer find SRT in the booking search?

SRT stopped being a separate bookable high-speed rail brand after the September 1, 2026 integration. Search KTX using your actual stations, such as Suseo to Busan or Suseo to GwangjuSongjeong.

Do former SRT trains still leave from Suseo?

Yes. Suseo remains a high-speed rail terminal. Enter Suseo as the origin or destination and select an available KTX result. Recheck the live timetable because routes and departure patterns can change.

Do I need a KORAIL account?

Not necessarily. The foreign-language KORAIL booking service is designed for international visitors, and authorized international platforms may offer booking without KORAIL membership. Check the current booking flow when you search, as account and verification requirements may change.

How far ahead should I book?

For ordinary travel, start checking up to two months before departure and book promptly for popular dates once suitable seats appear. Recheck the applicable release date for your journey, especially around public holidays.

Does the KORAIL Pass cover former SRT services?

Do not assume that it does. KORAIL's English pass page still says SRT is excluded despite the service integration. Confirm eligibility for the exact Suseo train you want before purchasing a pass.

Bottom line

To book a train that used to be sold as SRT, use KORAIL and search for KTX from Suseo. Choose Suseo, Seoul Station, or Yongsan based on total travel convenience; use a regular ticket if you need certainty on a particular train; and recheck holiday rules, pass eligibility, payment acceptance, and live schedules before committing.