Cheapest return flights from Seoul to London in September from $717

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

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

Return flights

13 Sep - 27 Sep Air China
08 Sep - 15 Sep Air China
12 Sep - 26 Sep Air China
07 Sep - 13 Sep Air China
08 Sep - 18 Sep Air China
07 Sep - 14 Sep Air China
06 Sep - 13 Sep Air China
10 Sep - 24 Sep Air China
08 Sep - 13 Sep Air China
17 Sep - 23 Sep Emirates
15 Sep - 05 Oct Air China
19 Sep - 07 Oct Air China
17 Sep - 22 Oct Air China
22 Sep - 07 Oct Emirates
26 Sep - 03 Oct Emirates
26 Sep - 06 Oct Emirates
29 Sep - 07 Oct Emirates
24 Sep - 07 Oct Emirates
27 Sep - 03 Oct Emirates
28 Sep - 05 Oct Emirates

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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