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

Return flights

30 Jan - 08 Feb	Air China
09 Jan - 22 Jan	Air China
13 Jan - 10 Feb	Air China
09 Jan - 27 Jan	Air China
07 Jan - 23 Jan	Air China
18 Jan - 28 Jan	Air China
18 Jan - 29 Jan	Air China
16 Jan - 24 Jan	Air China
16 Jan - 30 Jan	Air China
23 Jan - 30 Jan	Air China
07 Jan - 21 Jan	Air China
07 Jan - 19 Jan	Air China
30 Jan - 26 Feb	Wizz Air
25 Jan - 05 Feb	Air China
07 Jan - 05 Feb	Air China
20 Jan - 09 Feb	Air China
16 Jan - 06 Feb	Air China
29 Jan - 08 Feb	Air China
29 Jan - 01 Feb	Air China
19 Jan - 01 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.

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Cheapest return flights from London to Bangkok in January from $537

Return flights