AirHint found the following cheapest return flights from Las Vegas (LAS) to Bangkok (BKK) in January 2026 (see full year).

Return flights

20 Jan - 03 Feb	Spirit Airlines
19 Jan - 04 Feb	Frontier Airlines
27 Jan - 10 Feb	Spirit Airlines
13 Jan - 27 Jan	ANA
19 Jan - 02 Feb	Frontier Airlines
08 Jan - 29 Jan	Frontier Airlines
29 Jan - 15 Feb	Frontier Airlines
27 Jan - 27 Feb	Spirit Airlines
14 Jan - 17 Jan	Japan Airlines
30 Jan - 02 Feb	United
06 Jan - 20 Jan	China Airlines
06 Jan - 15 Jan	Frontier Airlines
08 Jan - 15 Jan	Korean Air
08 Jan - 19 Jan	Alaska Airlines
05 Jan - 12 Jan	Spirit Airlines
04 Jan - 11 Jan	Alaska Airlines
06 Jan - 10 Jan	Delta

Also check the deals for one-way flights from Las Vegas to Bangkok in January.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Las Vegas to Bangkok in January from $626

Return flights