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

Return flights

19 Nov - 11 Dec	Lufthansa
11 Nov - 16 Dec	Lufthansa
04 Nov - 18 Nov	ITA Airways
13 Nov - 24 Nov	SWISS
13 Nov - 27 Nov	Lufthansa
12 Nov - 27 Nov	Lufthansa
12 Nov - 19 Nov	Lufthansa
27 Nov - 07 Dec	Lufthansa
05 Nov - 17 Nov	SWISS
19 Nov - 09 Dec	KLM
20 Nov - 09 Dec	KLM
13 Nov - 25 Nov	KLM
10 Nov - 24 Nov	Lufthansa
11 Nov - 17 Nov	SWISS
18 Nov - 02 Dec	Lufthansa
11 Nov - 24 Nov	Lufthansa
24 Nov - 03 Dec	Lufthansa
25 Nov - 04 Dec	Lufthansa
18 Nov - 09 Dec	Lufthansa
25 Nov - 02 Dec	Lufthansa

Also check the deals for one-way flights from London to Seoul 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 London to Seoul in November from 577€

Return flights