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

Return flights

28 Apr - 12 May	Air China
20 Apr - 11 May	Air China
16 Apr - 19 May	Air China
27 Apr - 11 May	Air China
06 Apr - 09 Apr	Air China
04 Apr - 25 Apr	Norse Atlantic Airways (UK)
26 Apr - 02 May	Gulf Air
11 Apr - 24 Apr	Norse Atlantic Airways (UK)
09 Apr - 20 Apr	Air China
27 Apr - 20 May	Qatar Airways
20 Apr - 06 May	Qatar Airways
20 Apr - 04 May	Qatar Airways
27 Apr - 04 May	Qatar Airways
07 Apr - 14 Apr	Air China
05 Apr - 29 Apr	Norse Atlantic Airways (UK)
05 Apr - 25 Apr	Saudia
05 Apr - 28 Apr	Saudia
16 Apr - 23 Apr	Saudia
23 Apr - 07 May	Saudia
14 Apr - 21 Apr	Saudia

Also check the deals for one-way flights from London to Bangkok in April.

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 April from $559

Return flights