Cheapest return flights from Seoul to London in April from $504

AirHint found the following cheapest return flights from Seoul (ICN) to London (LHR) in April 2026 (see full year).

Return flights

02 Apr - 15 Apr China Southern
02 Apr - 09 Apr China Southern
02 Apr - 15 Apr Virgin Atlantic direct
03 Apr - 07 Apr China Southern
01 Apr - 14 Apr China Southern
03 Apr - 15 Apr China Southern
01 Apr - 19 Apr China Southern
01 Apr - 22 Apr China Southern
01 Apr - 09 Apr China Southern
03 Apr - 09 Apr China Southern
01 Apr - 18 May China Southern
03 Apr - 03 May China Southern
04 Apr - 13 May China Southern
21 Apr - 05 May Finnair
07 Apr - 26 May Finnair
28 Apr - 05 May Air China
22 Apr - 16 May Air China
27 Apr - 07 May Air China
22 Apr - 04 May Asiana Airlines direct
23 Apr - 11 May Asiana Airlines direct

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

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