Cheapest return flights from Seoul to London in April from $617

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

Return flights

03 Apr - 17 Apr China Southern
03 Apr - 19 Apr China Southern
01 Apr - 19 Apr China Southern
23 Apr - 08 May China Eastern
01 Apr - 13 Apr China Southern
03 Apr - 09 Apr China Southern
02 Apr - 13 Apr China Southern
14 Apr - 18 Apr China Eastern
28 Apr - 07 May China Eastern
22 Apr - 04 May China Eastern
23 Apr - 09 May China Eastern
03 Apr - 06 Apr China Southern
02 Apr - 10 Apr China Southern
03 Apr - 10 Apr China Southern
29 Apr - 08 May Air China
29 Apr - 05 May Air China
30 Apr - 08 May China Southern
23 Apr - 02 May China Eastern
27 Apr - 11 May China Southern
20 Apr - 20 May Air China

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

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