[abcdef]

Any advice on the best way to book Thai domestic flights? Thanks in advance.

[Designholiday]

Orient Thai
http://www.fly12go.com/en/main.shtml

Design Holiday

[brett25]

The full service domestic airlines are Thai, Bangkok Airways and PB Air

One-2-Go is a discount airline but does provide better advantages than the other more 'budget carriers

Budget carriers are Thai Air Asia and Nok Air

Nok Air has a premium service with 30 kg baggage and inflight snacks, they have 2 x 2 seating on 737's, these aircraft are ex Thai and they kept the same business class seats, it's only about USD 12.50 each way on top of the budget fare, so quite a bargain.

http://www.beachsiam.com/thailand.html has a list of all the domestic airlines and where they fly and links to their websites, quite handy.

[nation]

Try these guys. I've used them a number of times and they've come through efficiently and accurately:

http://traveller2000.com/

This is the email of the lady I dealt with there:

sanyawadee@traveller2000.com