January
$4,755
February
$2,535
March
$4,037
April
$4,578
May
$4,517
June
$4,547
July
$4,339
August
$3,265
September
$2,827
October
$4,321
November
$4,052
December
$4,348
Currently, the cheapest month for first class flights to Thailand is February. The most expensive month for first class flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, and how early you book.