Cheapest return flights from London to Seoul in September from 569€

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

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

Return flights

15 Sep - 20 Oct Air China
22 Sep - 16 Oct Air China
20 Sep - 21 Oct Air China
21 Sep - 21 Oct Air China
24 Sep - 15 Oct Air China
22 Sep - 21 Oct Air China
02 Sep - 22 Sep British Airways
19 Sep - 21 Oct Air China
20 Sep - 12 Oct Air China
08 Sep - 22 Sep Air China
14 Sep - 27 Sep China Southern
05 Sep - 15 Sep Air China
11 Sep - 18 Sep British Airways
04 Sep - 15 Sep British Airways
14 Sep - 21 Sep British Airways
15 Sep - 29 Sep Hainan Airlines
22 Sep - 29 Sep KLM
02 Sep - 11 Sep British Airways
18 Sep - 04 Oct Air China
29 Sep - 20 Oct Hainan Airlines

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