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

Return flights

21 Jan - 11 Feb	Thai Lion Air
23 Jan - 30 Jan	Thai Lion Air
26 Jan - 09 Feb	AirAsia
19 Jan - 04 Feb	Thai Lion Air
24 Jan - 03 Feb	AirAsia
13 Jan - 24 Feb	AirAsia
12 Jan - 19 Jan	Thai AirAsia
19 Jan - 03 Feb	AirAsia
26 Jan - 02 Feb	Batik Air Malaysia
16 Jan - 22 Jan	AirAsia
26 Jan - 08 Feb	AirAsia
13 Jan - 24 Jan	Thai Lion Air
12 Jan - 15 Jan	Thai Lion Air
26 Jan - 07 Feb	AirAsia
29 Jan - 05 Feb	Thai Lion Air
07 Jan - 17 Jan	Thai AirAsia
16 Jan - 31 Jan	Thai Lion Air
07 Jan - 19 Jan	Thai AirAsia
17 Jan - 23 Jan	AirAsia
10 Jan - 17 Jan	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 $742

Return flights