Traveling from Seoul to Busan: Transport and Travel Guide
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Quick answer
Travel the 447.1-kilometer Gyeongbu route between Seoul and Busan via high-speed KTX trains reaching 330 km/h from Seoul Station, or SRT trains reaching 300 km/h from Suseo Station. Express buses depart from Seoul Express Bus Terminal and book online via Kobus using foreign credit cards as of August 2026.
At a glance
What trains run between Seoul and Busan?
The 447.1-kilometer (277.8-mile) Gyeongbu Line connects Seoul Station in the north to Busan Station on the southern coast. Travelers have several railway options depending on their departure point and travel style:
| Train Type | Seoul Departure Hub | Max Operating Speed | Rail Category |
|---|---|---|---|
| KTX | Seoul Station (also Yongsan) | 330 km/h | High-speed rail |
| SRT | Suseo Station | 300 km/h | High-speed rail |
| ITX-Saemaeul | Seoul Station | Conventional speed | Premium conventional rail |
| Mugunghwa | Seoul Station | Conventional speed | Standard rail (local stops) |
Seoul Station is an integrated transit hub directly connected to Seoul Subway Lines 1 and 4, the Gyeongui–Jungang Line, and the AREX airport railroad. Passengers staying in southern Seoul or Gangnam can depart via the SRT at Suseo Station. Standard rail cabins provide multilingual travel guides, and foreign credit cards are accepted directly on the official KORAIL website.
How do express and intercity buses work on this route?
Long-distance buses offer an alternative road route, departing primarily from Seoul Express Bus Terminal (connected to Seoul Subway Lines 3, 7, and 9):
- Bus categories: Express buses travel directly along highways without intermediate city stops, whereas intercity buses may make intermediate stops along national highways.
- Terminals: Express and intercity lines often use separate facilities unless marked jonghap (integrated).
- Rest stops: Buses do not have onboard toilets. Instead, drivers make scheduled stops at expressway service plazas (hyugeso) equipped with food vendors and restrooms.
- Boarding: Arrive at the boarding platform 5 to 10 minutes prior to scheduled departure. Depending on the booking provider, travelers may need to print a paper ticket at the terminal window.
Foreign credit cards are accepted directly on the Kobus website without requiring site membership as of August 2026. The domestic Tmoney GO mobile application does not accept foreign cards, though visitors can also book seats via approved platforms like Klook or Hanpass.
Which passes and transit cards should you consider?
Foreign travelers heading beyond Seoul can lower travel costs through specialized transport passes:
- KORAIL PASS: Provides unlimited train travel on KTX and standard rail lines across consecutive or select days ranging from 2 to 5 days.
- KORAIL PASS+: An optional 8,000 KRW (approx. $5.71 USD) upgrade that adds local transit and retail payment capabilities to the railway pass. Visitors collect the physical smart card from NAMANE kiosks located at Incheon Airport, Seoul Station, Yongsan Station, or Busan Station.
- K-Tour Pass: Introduced as a pilot in October 2026 for 15,000 KRW (approx. $11 USD). It provides up to 40% discounts on intercity transport heading to Busan, free admission to one of 35 Busan attractions, discounts across 50 regional venues, and an optional reloadable card for city transit.
Questions people ask
What is the main difference between KTX and SRT trains?
Both operate high-speed rail service terminating at Busan Station. KTX reaches speeds up to 330 km/h and departs from central hubs like Seoul Station and Yongsan Station. SRT reaches speeds up to 300 km/h and departs exclusively from Suseo Station in southeastern Seoul.
Can international travelers book Korean express bus tickets using foreign credit cards?
Yes. As of August 2026, the Kobus website accepts foreign credit cards without requiring a domestic account. However, the Tmoney GO mobile application remains limited to domestic payment methods, so foreign cardholders should book via the Kobus web platform or partner travel sites.
Are there onboard restrooms on express buses between Seoul and Busan?
No. Long-distance express and intercity buses in Korea do not feature onboard restrooms. Buses make designated stops at highway rest areas (hyugeso), giving passengers time to use public facilities and purchase food before continuing their journey.
What benefits are included with the K-Tour Pass for Busan?
Launched in October 2026 for 15,000 KRW (approx. $11 USD), the pass provides up to 40% off intercity transit to Busan, free entry to one of 35 paid regional attractions, and activity discounts across 50 partner locations.
Where can visitors collect the physical KORAIL PASS+ card?
After purchasing the pass and paying the 8,000 KRW (approx. $5.71 USD) surcharge online, travelers can collect their physical smart card from designated NAMANE kiosks at Incheon Airport, Seoul Station, Busan Station, and Yongsan Station.
Sources
- Train- VISITKOREA(opens in a new tab)
- Express Bus & Intercity Bus- VISITKOREA(opens in a new tab)
- KORAIL PASS+: An All-in-One Travel and Payment Card for International Travelers- VISITKOREA(opens in a new tab)
- Korea's new K-Tour pass offers foreign travelers gateway beyond Seoul - The Korea Times(opens in a new tab)
- Kobus adds overseas card payments to open Korea bus travel to tourists - CHOSUNBIZ(opens in a new tab)