AirHint found the following cheapest return flights from Seoul (GMP) to London (LHR) in November 2025 (see full year).

Return flights

19 Nov - 26 Nov	China Southern
14 Nov - 22 Nov	China Southern
10 Nov - 16 Nov	China Eastern
12 Nov - 18 Nov	China Southern
27 Nov - 30 Nov	Air China
10 Nov - 17 Nov	Air China
10 Nov - 20 Nov	Air China
06 Nov - 09 Nov	Air China
19 Nov - 30 Nov	Air China
10 Nov - 13 Nov	Air China
24 Nov - 04 Dec	Air China
27 Nov - 04 Dec	Air China
30 Nov - 03 Dec	Air China
24 Nov - 08 Dec	Air China
24 Nov - 01 Dec	Air China
18 Nov - 01 Dec	Air China
27 Nov - 07 Dec	Air China
30 Nov - 07 Dec	Air China
28 Nov - 02 Dec	Air China
21 Nov - 08 Dec	Air China

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

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 November from $561

Return flights