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

Return flights

14 Jan - 29 Jan	Air China
06 Jan - 23 Jan	Air China
23 Jan - 31 Jan	Air China
24 Jan - 31 Jan	Air China
12 Jan - 23 Jan	Air China
12 Jan - 24 Jan	Air China
07 Jan - 23 Jan	Air China
07 Jan - 18 Jan	Air China
11 Jan - 22 Jan	Air China
09 Jan - 26 Jan	Air China
30 Jan - 07 Feb	Air China
06 Jan - 10 Feb	Air China
23 Jan - 01 Feb	Air China
29 Jan - 07 Feb	Air China
21 Jan - 02 Feb	Air China
20 Jan - 01 Feb	Air China
11 Jan - 04 Feb	Air China
21 Jan - 08 Feb	Air China
25 Jan - 02 Feb	Air China
26 Jan - 06 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 475€

Return flights