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

Return flights

14 Jan - 22 Jan	Air China
04 Jan - 31 Jan	Air China
04 Jan - 22 Jan	Air China
07 Jan - 07 Feb	Air China
18 Jan - 03 Feb	Air China
12 Jan - 31 Jan	Air China
09 Jan - 22 Jan	Air China
17 Jan - 05 Feb	Air China
24 Jan - 03 Feb	Air China
25 Jan - 05 Feb	Air China
16 Jan - 29 Jan	Air China
07 Jan - 27 Jan	Air China
14 Jan - 24 Jan	Air China
14 Jan - 29 Jan	Air China
16 Jan - 31 Jan	Air China
16 Jan - 07 Feb	Air China
19 Jan - 03 Feb	Air China
27 Jan - 07 Feb	Air China
07 Jan - 03 Feb	Air China
11 Jan - 05 Feb	Air China

Also check the deals for one-way flights from London 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 London to Bangkok in January from 484€

Return flights