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

Return flights

26 Apr - 04 May	Air China
22 Apr - 29 Apr	Emirates
22 Apr - 28 Apr	Emirates
27 Apr - 07 May	Emirates
27 Apr - 11 May	Emirates
17 Apr - 24 Apr	Air China
15 Apr - 23 Apr	Air China
30 Apr - 05 May	Air China
01 Apr - 12 Apr	Air China
04 Apr - 11 Apr	Air China
30 Apr - 04 May	Air China
24 Apr - 30 Apr	Emirates
14 Apr - 21 Apr	Air China
10 Apr - 19 Apr	Air China
04 Apr - 14 Apr	Emirates
24 Apr - 01 May	Emirates

Also check the deals for one-way flights from Seoul to London 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 Seoul to London in April from $839

Return flights