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

Return flights

23 Jan - 29 Jan	AirAsia
22 Jan - 28 Jan	AirAsia
19 Jan - 27 Jan	AirAsia
21 Jan - 27 Jan	Thai AirAsia
14 Jan - 31 Jan	Thai Lion Air
16 Jan - 26 Jan	Thai Lion Air
19 Jan - 28 Jan	AirAsia
21 Jan - 31 Jan	AirAsia
23 Jan - 06 Feb	AirAsia
15 Jan - 20 Jan	AirAsia
29 Jan - 05 Feb	AirAsia
13 Jan - 31 Jan	Thai AirAsia X
24 Jan - 07 Feb	Thai AirAsia
19 Jan - 01 Feb	AirAsia
10 Jan - 08 Feb	Thai Lion Air
25 Jan - 05 Feb	Thai Lion Air
10 Jan - 10 Feb	AirAsia
09 Jan - 09 Feb	Thai Lion Air
21 Jan - 16 Feb	Cebu Pacific
08 Jan - 09 Feb	Thai Lion Air

Also check the deals for one-way flights from Bangkok to London 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 Bangkok to London in January from 604€

Return flights