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

Return flights

28 Jan - 25 Feb	Ryanair
16 Jan - 25 Jan	Air China
15 Jan - 25 Jan	Air China
05 Jan - 31 Jan	Air China
07 Jan - 31 Jan	Air China
07 Jan - 14 Jan	Air China
09 Jan - 19 Jan	Air China
04 Jan - 24 Jan	Air China
13 Jan - 29 Jan	Air China
04 Jan - 25 Jan	Air China
12 Jan - 29 Jan	Air China
23 Jan - 04 Feb	Air China
12 Jan - 03 Feb	Air China
13 Jan - 10 Feb	Air China
11 Jan - 07 Feb	Air China
13 Jan - 16 Feb	Air China
23 Jan - 03 Feb	Air China
07 Jan - 04 Feb	Air China
21 Jan - 07 Feb	Air China
27 Jan - 08 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 $566

Return flights