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

Return flights

27 Jan - 24 Feb	Pegasus Airlines
17 Jan - 26 Feb	Pegasus Airlines
31 Jan - 28 Feb	Pegasus Airlines
31 Jan - 25 Feb	Pegasus Airlines
25 Jan - 24 Feb	Ryanair
31 Jan - 19 Feb	Pegasus Airlines
27 Jan - 23 Feb	Pegasus Airlines
23 Jan - 01 Feb	Ryanair
11 Jan - 29 Jan	Ryanair
14 Jan - 27 Jan	Ryanair
16 Jan - 29 Jan	Ryanair
11 Jan - 25 Jan	Ryanair
14 Jan - 25 Jan	Ryanair
27 Jan - 09 Feb	Pegasus Airlines
12 Jan - 28 Jan	Ryanair
09 Jan - 27 Jan	Ryanair
12 Jan - 29 Jan	Ryanair
20 Jan - 28 Jan	Ryanair
16 Jan - 30 Jan	Ryanair
25 Jan - 28 Feb	Ryanair

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 445€

Return flights