Cheapest return flights from Seoul to London in January from $648

Best time to book flights for Seoul (ICN) to London (LHR) flights at AirHint

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

Return flights

13 Jan - 18 Jan Royal Brunei
13 Jan - 25 Jan Royal Brunei
26 Jan - 02 Feb Lufthansa
28 Jan - 04 Feb Lufthansa
28 Jan - 31 Jan Lufthansa
14 Jan - 31 Jan Lufthansa
21 Jan - 28 Jan Lufthansa
29 Jan - 31 Jan Lufthansa
14 Jan - 20 Jan Lufthansa
28 Jan - 01 Feb Finnair
20 Jan - 27 Jan Lufthansa
24 Jan - 31 Jan Lufthansa
30 Jan - 03 Feb Lufthansa
20 Jan - 03 Feb Finnair
13 Jan - 20 Jan Finnair
28 Jan - 06 Feb Finnair
19 Jan - 01 Feb Finnair
25 Jan - 01 Feb Finnair
26 Jan - 02 Feb Korean Air direct
20 Jan - 03 Feb Korean Air direct

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

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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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