Yes, you can get a train from Thailand to Laos. The train journey from Bangkok to Vientiane lasts around 13 hours and 30 minutes. The train departs from Bangkok’s Hua Lamphong Railway Station and arrives in Vientiane at Thanaleng Railway Station.

Because the train is a sleeper, you can sleep on it overnight. There are sleeping rooms in both the second and first classes on the train. Second-class sleeping cabins are less expensive, but they are also more congested. First-class sleeping cabins are larger and more comfortable, but they are also more costly.

The train ticket price from Bangkok to Vientiane is 1,500 baht (about US$45) for 2nd class sleeper and 2,500 baht (about US$75) for 1st class sleeper.

The Bangkok-Vientiane train departs at 19:00 and arrives at 08:30 the next morning. The train is operated by Thailand’s State Railway.

Here are some tips for taking the train from Thailand to Laos:

Purchase your rail ticket in advance, especially if traveling during the high season.
Arrive at the railway station at least one hour before departure to check in and obtain your boarding card.
When you board the train, bring your passport and visa with you.
Prepare yourself for a long voyage. The train journey from Bangkok to Vientiane lasts around 13 hours and 30 minutes.