Cheapest return flights from Seoul to London in September 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 September 2025 (see full year).

Return flights

15 Sep - 22 Sep Lufthansa
08 Sep - 15 Sep Lufthansa
15 Sep - 29 Sep Lufthansa
08 Sep - 17 Sep Lufthansa
06 Sep - 16 Sep Lufthansa
05 Sep - 11 Sep Lufthansa
15 Sep - 30 Sep Lufthansa
09 Sep - 16 Sep Lufthansa
05 Sep - 15 Sep Lufthansa
16 Sep - 23 Sep Lufthansa
17 Sep - 20 Oct Air China
17 Sep - 22 Oct Air China
15 Sep - 15 Oct Air China
24 Sep - 13 Oct Malaysia Airlines
18 Sep - 01 Oct Emirates
28 Sep - 13 Oct Vietnam Airlines
27 Sep - 13 Oct Vietnam Airlines
22 Sep - 01 Oct Vietnam Airlines
24 Sep - 01 Oct Vietnam Airlines
29 Sep - 13 Oct Vietnam Airlines

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

Skyscanner

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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