The Ultimate 2026 Seoul to Busan KTX Guide: Booking, Boarding, and Pro Tips

Traveling from Seoul to Busan is a highlight of any Korea trip, and taking the KTX (Korea Train Express) is undoubtedly the fastest and most efficient way to do it. In just about 2.5 hours, you can swap the bustling city of Seoul for the beautiful coastal vibes of Busan.

1. Where It All Begins: Seoul Station

All KTX trains headed for Busan depart from Seoul Station, the city’s primary transportation hub. Because the station is massive and serves multiple subway lines and trains, we recommend arriving at least 20–30 minutes before your departure.

• Location: Connected to Seoul Subway Line 1, Line 4, and the Airport Railroad (AREX).

2. How to Book KTX Tickets (Official Methods)

For international travelers, booking tickets is simple and can be done entirely online with a foreign credit card. There are two official ways to secure your seat.

Option A: Let’s Korail Website (Best for Desktop)

Ideal for travelers who want to book their tickets in advance before arriving in Korea.

1. Visit the Official Let’s Korail English Website.
2. Select Your Journey: Choose Seoul to Busan, your date, and the number of passengers.
3. Search & Select: Click ‘Inquiry’ and choose your preferred train time.
4. Payment: Enter your credit card details (Visa, Master, and JCB are widely accepted).
5. Save Your Ticket: You will receive a voucher via email. Save it on your phone or print it.

Option B: Korail Talk App (Must-Have for Mobile)

Highly recommended for booking on the go or managing your tickets digitally.

• Install: Search for ‘Korail Talk‘ in the App Store or Google Play.
• Set Language: Open the menu and switch the Language to English.
• Mobile Ticket: Your ticket will be stored in the ‘My Ticket’ section. No printing is required.

3. Boarding the KTX at Seoul Station

One unique thing about South Korean train stations is that there are no ticket barriers (turnstiles). You can walk straight to the platform.

1. Check the Board: Find your train number and Platform Number (Track No.) on the digital screens.
2. Head to the Platform: Follow the signs to your assigned track. There are no gates to scan through.
3. Find Your Seat: Look for your Car Number on the side of the train and locate your seat inside.

4. KTX On-board Amenities

• Charging Ports: Power outlets and USB ports are available at most seats.
• Free Wi-Fi: Join the ‘KORAIL-WiFi’ network for free internet.
• Luggage: Overhead racks and dedicated luggage areas are available for large suitcases.