Cheapest return flights from Seoul to London in December from $401

AirHint found the following cheapest return flights from Seoul (ICN) to London (LGW) in December 2025 (see full year).

Return flights

29 Dec - 13 Jan China Southern
23 Dec - 14 Jan China Eastern
17 Dec - 11 Jan China Eastern
18 Dec - 10 Jan China Eastern
13 Dec - 31 Dec China Eastern
29 Dec - 06 Jan China Southern
29 Dec - 10 Jan China Southern
24 Dec - 10 Jan China Eastern
25 Dec - 01 Jan China Eastern
25 Dec - 02 Jan China Eastern
26 Dec - 02 Jan China Eastern
11 Dec - 23 Dec China Southern
10 Dec - 23 Dec China Southern
24 Dec - 31 Dec China Eastern
23 Dec - 31 Dec China Eastern
05 Dec - 12 Dec Air China
12 Dec - 23 Dec China Southern
05 Dec - 10 Dec China Southern
15 Dec - 23 Dec China Southern
14 Dec - 28 Dec China Eastern

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

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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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