Cheapest return flights from Bangkok to London in April from $800

Best time to book flights for Bangkok (BKK) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Bangkok (BKK) to London (LHR) in April 2025 (see full year).

Return flights

16 Apr - 23 Apr Finnair
02 Apr - 08 Apr Finnair
15 Apr - 25 Apr Finnair
16 Apr - 30 Apr Finnair
17 Apr - 02 May Finnair
14 Apr - 21 Apr Finnair
30 Apr - 11 May Singapore Airlines
04 Apr - 19 Apr Finnair
01 Apr - 15 May Finnair
03 Apr - 03 Apr Air China
11 Apr - 02 May Air China
11 Apr - 22 Apr Air China
25 Apr - 03 May Air China
04 Apr - 20 Apr Finnair
21 Apr - 30 Apr Finnair
24 Apr - 04 May EVA Air direct
30 Apr - 11 May EVA Air direct
01 Apr - 15 May EVA Air direct
10 Apr - 09 May Finnair
25 Apr - 03 May EVA Air direct

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

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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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