Nong Khai

Train

The train station is located a bit further from the centre of town than the bus station, so catching a tuk tuk there is usually required. We were quoted a price of 50 baht per person from the main part of town, though there may be some wriggle room depending on your driver.

To Bangkok
Leaves 06:00 arrives 17:30 2nd class 498 baht, 3rd class 253 baht
Leaves 18:20 arrives 06:25 1st class 1,117/1,317 baht 2nd class 688/758 baht
Leaves 19:15 arrives 08:00 3rd class 213 baht

From Bangkok
Leaves 18:30 arrives at 05:05
Leaves 20:00 arrives 08:25
Leaves 20:45 arrives 09:45
Note the day train from Bangkok leaves Bangkok at 08:20 but terminates at Udon Thani from where you'll need to get a bus to Nong Khai.

Bus

The Nong Khai bus station is located near the centre of town, a block away from Wat Po Chai. It is a manageable walk from most guesthouses in town, so taking a tuk tuk will likely not be necessary unless you have a lot of luggage or are staying a bit further out. There is not a lot of English posted at the station or spoken by those working there, but so long as you know where you want to go you should have no trouble communicating the basics.


Domastic
Sample destinations include:
Bangkok: VIP leaves 19:45, 20:00
1st class leaves 07:00, 07:45, 08:30, 10:15, 19:00, 19:30, 20:00, 20:30, 20:45
2nd class leaves 05:50, 07:10, 08:40, 11:30, 13:30, 14:30, 16:30, 17:30, 19:30
To Suvarnabhumi Airport: Leaves 20:00

Phuket: Leaves 14:00, 14:30

Rayong: 1st class Leaves 07:00, 10:30, 15:35, 16:30, 17:00, 17:30, 18:35, 19:00, 19:20
2nd class Leaves 06:0should0 10:00, 15:30, 18:30, 19:35

Chayaphum: Leaves 07:00, 08:00, 09:00, 10:00, 11:00, 13:00, 15:00

Ubon Rhatchatani: Leaves 9:00, 11:00

Udon Thani: Leaves every 30-40 minutes from 06:00 to 18:00

International
Vientiane: Leaves 07:30, 09:30, 12:40, 14:30, 15:30, 18:00 costs 55 baht.
Warning: first hand accounts vary on how much time you’re afforded at the Laos border. If you don’t already have your Laos visa, you run the slight risk of being left at the border by an impatient bus driver. Being left wouldn’t be the end of the world, but be sure to keep your bag with you just in case.

Minibus
It is also possible to arrange minibus transport from Nong Khai to Udon Thani airport from companies like Udon Kaew Tours (T: (042) 411 530) and BS Tour (T: (042) 467 154). The easiest way to arrange a minibus to the airport will most likely be through your guesthouse. (These minibuses are generally used mostly by Thai tourists, so the level of English can sometimes be a stumbling block). However, if you are feeling brave you can try to arrange the ride yourself directly through the travel company.