There is no direct train. You change trains once in Bangkok and book each train as its own ticket. We found 3 good connections.
| 1st train | Change at | 2nd train | Total time | Fare from | With berths |
|---|---|---|---|---|---|
| RP172 03:51 | Bangkok wait 1h 10m |
EX75 08:45 | 13h 04m | 338 THB | 724 THB |
| SP40 14:36 | Bangkok wait 2h 20m |
SP25 20:25 | 15h 03m | 1,307 THB | 1,307 THB |
| SP40 14:36 | Bangkok wait 3h 20m |
RP133 21:25 | 16h 26m | 534 THB | 1,067 THB |
Fares are per adult for the cheapest class we know on each train. "With berths" uses a sleeper berth on the overnight train(s). Live fares show when you book.
See also: night trains · return: Udon Thani to Hua Hin · all connections
No. You change trains once, in Bangkok, and book each train as a separate ticket.
Take RP172 at 03:51, change in Bangkok and continue on EX75. The whole trip takes about 13h 04m, including 1h 10m to change trains.
From about 338 THB per adult in total, on RP172 and EX75 in the cheapest available class.
At least one hour at the same station. Long-distance trains, especially from the south, are often late, so a wait of 2–3 hours is safer. If you change between Hua Lamphong and Krung Thep Aphiwat in Bangkok, allow extra time to cross the city.