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

Return flights

10 Jan - 30 Jan	Wizz Air UK
18 Jan - 22 Jan	Pegasus Airlines
14 Jan - 21 Jan	Air China
24 Jan - 31 Jan	Air China
24 Jan - 30 Jan	Air China
05 Jan - 02 Feb	Wizz Air UK
08 Jan - 08 Feb	Air China
08 Jan - 15 Jan	Lufthansa
05 Jan - 06 Jan	Wizz Air UK
15 Jan - 20 Jan	Turkish Airlines
10 Jan - 14 Jan	Turkish Airlines
10 Jan - 15 Jan	Turkish Airlines

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 $671

Return flights