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

Return flights

22 Dec - 27 Dec	Air China
22 Dec - 06 Jan	Air China
19 Dec - 30 Dec	Air China
01 Dec - 07 Dec	Emirates
22 Dec - 05 Jan	Emirates
08 Dec - 13 Dec	Air China
23 Dec - 29 Dec	Emirates
28 Dec - 05 Jan	Emirates
28 Dec - 04 Jan	Emirates
22 Dec - 29 Dec	Emirates
19 Dec - 27 Dec	Air China
22 Dec - 30 Dec	Air China
12 Dec - 18 Dec	Air China
21 Dec - 25 Dec	Emirates
29 Dec - 06 Jan	Qatar Airways
21 Dec - 04 Jan	Qatar Airways
21 Dec - 05 Jan	Qatar Airways
16 Dec - 06 Jan	Qatar Airways
21 Dec - 01 Jan	Qatar Airways
23 Dec - 04 Jan	Qatar Airways

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

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 December from $781

Return flights