Korail+ (코레일+, renamed from KorailTalk on August 3, 2026) books KTX, ITX, and regular Korail trains. The SRT app books a separate high-speed line, run by a different company, from a different station in Seoul. Neither one asks for a Korean resident registration number (주민등록번호). Both ask for a passport and a working card, and the card step is where most foreign residents get stuck.
Which app for which trip
| You want to book | Try this | Company |
|---|---|---|
| KTX, ITX, Mugunghwa | Korail+ app (formerly KorailTalk), or korail.com/global/eng | Korail |
| SRT (departs Suseo Station) | etk.srail.kr English booking, or the SRT app | SR Corporation |
| Express bus (고속버스) | KOBUS (kobus.co.kr) or 티머니GO | Bus operators' association / T-money |
| Intercity bus (시외버스) | KOBUS or 티머니GO | Bus operators' association / T-money |
Korail+: booking without a Korean ID
Korail+ (코레일+) is the ticketing app from Korail (한국철도공사), the state-owned operator of KTX, ITX-Cheongchun, Mugunghwa, and Saemaeul trains. Korail renamed the app from KorailTalk to Korail+ on August 3, 2026, as part of a merger with SR Corporation's SRT booking system, approved the same day by Korea's Fair Trade Commission. The app's Google Play listing no longer names specific supported languages the way the old KorailTalk listing did; it now describes general multi-language support for foreign travelers instead of listing English, Chinese, and Japanese by name.
If you don't find a language option that works for you in the app, Korail's English-language website, korail.com/global/eng, offers a separate path. Its Ticketing Guide page describes tickets bought "via the KORAIL website (www.korail.com), KORAIL Talk (mobile app), ticket vending machines, train stations," with a reservation confirmed "by entering the e-mail address and password you used when purchasing the ticket." That's a plain email-and-password purchase flow. No resident registration number appears anywhere on that page.
At major stations, look for a QR code posted at ticket windows and vending machines: scanning it has offered a shortcut straight to the foreign-language booking website, skipping the app entirely. Signage changes over time, so treat it as a bonus if you spot one rather than a step to rely on.
Google Play reviews on the Korail+ listing (the same app, formerly named KorailTalk) describe foreign cards failing, or the app crashing, mid-payment, even when the same card works on the desktop site. These are user reports, not something Korail states outright. If a card fails inside the app, try the desktop website next, and keep a second card as a backup.
SRT app: a different company, a different station
SRT (수서고속철도) looks like more KTX, but it isn't. SRT is run by SR Corporation (에스알), a company separate from Korail, confirmed by the two operators' own distinct business registration numbers. SRT departs mainly from Suseo Station (수서역), on the Gyeongbu line toward Busan and the Honam line toward Mokpo, not from Seoul Station.
The SRT app's own Google Play listing is written entirely in Korean, with no English, Chinese, or other language named, unlike the Korail+ listing. The separate SRT ticketing website, etk.srail.kr, does have an English-language booking flow. If the app itself feels unusable in Korean, the website is the alternative worth trying.
Korail and SR Corporation are merging: Korea's Fair Trade Commission approved the merger on August 3, 2026, and Korail's own announcement targets full integration for September 2026. Starting August 5, 2026, Korail opened bookings for trains departing September 1, 2026 or later through Korail+ or Korail's website. Check korail.com and srail.or.kr directly for the current status before you rely on either app or website working the same way as described here.
If an overseas-issued card fails inside the SRT app, try the same booking on the ticketing website before giving up, and have a second card ready. That announcement is now over three years old. Confirm foreign-card payment is still working, and which card networks it covers, before relying on it for a trip you can't easily rebook.
Even where a card network is accepted, a common pattern across Korean e-commerce generally is that international cards can fail at the final 3D-Secure security check on a Korean payment gateway. This isn't unique to SRT. If a payment fails, try the website instead of the app, or the app instead of the website, before assuming the card itself is the problem.
Cancelling an SRT ticket costs less the further ahead of departure you cancel, and more once departure is close or has passed, with a fee schedule that also differs by day of the week. That schedule was last announced by SR Corporation over a year ago, so check the current cancellation fees directly on srail.or.kr before booking anything you might need to change.
KTX or SRT: check the station before you check the price
KTX departs mainly from Seoul Station, Yongsan Station, and Gwangmyeong Station. SRT departs from Suseo Station. Confirm which station your ticket departs from before you leave home, especially if you're new to Seoul. Suseo Station sits on Line 3 in the southern part of the city, further from many neighborhoods than Seoul Station.
The two systems don't share tickets or passes. Korail's own Korail Pass page states plainly: "Please note that the KORAIL PASS does not include SRT, the metropolitan railway, and temporary tourist trains." If you're comparing routes and prices, check both korail.com and srail.or.kr separately. Some routes, like Seoul to Jeonju, run mostly on KTX. Others, like Seoul to Busan, run on both systems.
Korea's Fair Trade Commission approved a merger between Korail and SR Corporation on August 3, 2026, with full integration targeted for September 2026. Once that happens, the station and app split described above is expected to fade; check Korail's own site for the latest status rather than assuming either system still operates independently.
The Korail Pass is built for visitors, not residents
Korail's own English eligibility page opens with: "The KORAIL PASS allows foreigners visiting Korea to journey across the country by train at a reasonable price." Under "Who is the KORAIL PASS for," it states: "Any foreigners visiting Korea can travel with the KORAIL PASS. * Unavailable for persons with Korean nationality." Buying one requires "A valid passport and credit card." No alien registration card, resident registration number, or Korean bank account appears anywhere on that page.
Here's the detail worth being honest about. Nearly every travel-agency and reseller site repeats a specific rule: that the Korail Pass excludes anyone who has lived in Korea for six months or more, or who holds an alien registration card. That exact wording doesn't appear on Korail's own official page, at least not in the research behind this guide. The closest Korail comes is "for foreigners visiting Korea" and "unavailable for persons with Korean nationality," alongside a passport-only ID requirement.
If you're a long-term foreign resident weighing the Korail Pass, don't assume the six-month cutoff is Korail's official policy just because travel sites repeat it everywhere. Also don't assume you qualify just because Korail's own page doesn't spell it out either way. The pass is framed around visitors, and a long-term resident who buys one risks a refusal at the point of use, a risk that a plain point-to-point ticket does not carry. Point-to-point KTX and SRT tickets, booked through the flows described above, don't carry this ambiguity. Any foreign resident with a passport or alien registration card and a working payment method can buy them.
Korail's pass page also describes the pass as valid for a chosen number of days within a longer window, with seat reservations opening a month before departure and standing permitted if a train sells out. Treat any specific pricing you see for the pass elsewhere as needing a fresh check at korail.com rather than a fixed number.
Express and intercity buses: KOBUS and 티머니GO
For routes with no train, or for shorter regional trips, express buses (고속버스) and intercity buses (시외버스) fill the gap. Express buses run mainly on expressways between major cities. Intercity buses cover more stops on routes that may leave the expressway.
Two apps handle most of this booking. KOBUS (코버스, kobus.co.kr) is the integrated platform run by the national express-bus operators' association, covering both express and much of the intercity network. 티머니GO, T-money's multi-mobility app, bundles bus, taxi, bike-share, domestic flights, and SRT bookings into one app.
티머니GO asks you to register an account before you can complete a booking, and its own App Store listing states its language field as "언어: KO 한국어" (Language: KO, Korean). If you don't read Korean, plan on a translation app or a Korean-speaking friend for the setup step.
One thing neither platform sells you: a standing ticket. Every express and intercity bus route in Korea sells reserved seats only. Secondary sources describe this as coming from Korea's passenger transport service law (여객자동차운수사업법), tightened further by a 2023 rule change. Whichever bus you're booking, plan to reserve a seat in advance rather than showing up and hoping to stand.
What to try if payment keeps failing
A failed card payment is common enough, across all four of these apps, that it's worth having a short list of things to try before giving up:
- Switch between the app and the matching website. Korail+ (formerly KorailTalk) and Korail's English website are separate systems. SRT's app and etk.srail.kr are separate too, for now. A card that fails on one sometimes goes through on the other.
- Try a second card. International cards fail Korean payment gateways for reasons that aren't always about the card itself; a different card network sometimes clears a step the first one didn't.
- For Korail specifically, a QR code posted at ticket windows and vending machines has offered a route to the foreign-language website without needing the app at all.
- Keep your booking flexible where you can. If you're not confident a payment will clear before a departure you can't miss, build in enough buffer to try a second route or a staffed counter.
For planning day trips and destination timing once your booking method is sorted, see the day trips from Seoul guide. For getting around once you've arrived, Naver Map covers walking and transit directions inside Korea.