Seosan to Cheongju bus timetable
Buses from Seosan to Cheongju run 7 times a day across 3 terminal pairs. First bus 04:00, last bus 23:59, fares from 18,200 KRW, fastest trip 106 min. As of 2026-11-05
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- 2359Std
Terminal names are shown in Korean because that is how they appear on tickets, signs and booking sites. Fares are adult one-way. Express buses (고속버스) are booked on KOBUS, intercity buses (시외버스) on T-money or Bustago.
Paying with a foreign card
Checked 2026-10-21. Rules change, so confirm on the payment screen.
Express buses (고속버스)
- KOBUS: Choose the overseas card tab (해외카드) at checkout. It takes Visa, Mastercard and JCB issued abroad and asks for your date of birth (YYMMDD).
- Klook: Sells express bus tickets in English with international cards. Routes and dates are limited, so a search may come back empty.
- Go Hanpass: App in many languages, sign-up with passport and email. You top up a won wallet with a foreign card, then pay from it. Lists express and intercity buses.
- Ticket counter at the terminal: A July 2024 government announcement described foreign cards as already accepted at express bus counters. Busy departures can sell out.
Intercity buses (시외버스)
- Ticket counter at the terminal: Foreign Visa, Mastercard, JCB and UnionPay cards were announced as accepted at all 243 intercity terminals from July 2024. Busy departures can sell out.
- Go Hanpass: App in many languages, sign-up with passport and email. You top up a won wallet with a foreign card, then pay from it. Lists express and intercity buses.
- T-money and Bustago websites: Their guides do not say whether foreign cards work. Bustago suspended foreign-card payments in October 2025 and has posted no restart notice, although a software vendor reported in October 2026 that its app accepts them again. Not confirmed.
All departures
| Departs | Terminals (Korean names) | Type · class | Arrives | Fare (KRW) | Duration |
|---|---|---|---|---|---|
| 04:00 | 서산 → 청주북부 | express bus · Deluxe | 05:50 | 19,100 | 110 min |
| 04:00 | 서산 → 청주공항 | express bus · Deluxe | 06:05 | 20,600 | 125 min |
| 10:05 | 서산 → 청주북부 | express bus · Deluxe | 11:55 | 19,100 | 110 min |
| 10:05 | 서산 → 청주공항 | express bus · Deluxe | 12:10 | 20,600 | 125 min |
| 14:10 | 서산 → 청주북부 | express bus · Deluxe | 16:00 | 19,100 | 110 min |
| 14:10 | 서산 → 청주공항 | express bus · Deluxe | 16:15 | 20,600 | 125 min |
| 23:59 | 서산 → 청주 | intercity bus · Standard | 25:45 | 18,200 | 106 min |
Frequently asked questions
What time is the first and last bus from Seosan to Cheongju?
As of 2026-11-05, the first bus leaves 서산 at 04:00 and the last leaves 서산 at 23:59, with 7 buses a day in total.
How much is the bus from Seosan to Cheongju?
As of 2026-11-05, adult one-way fares run from 18,200 KRW to 20,600 KRW. The cheapest is the 23:59 standard bus from 서산.
How long does the bus from Seosan to Cheongju take?
As of 2026-11-05, the fastest bus takes 106 min, leaving 서산 at 23:59.