Cheapest return flights from London to Seoul in September from 383€

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

Return flights

17 Sep - 11 Oct China Eastern
17 Sep - 22 Oct China Eastern
17 Sep - 26 Oct China Eastern
16 Sep - 11 Oct China Eastern
14 Sep - 14 Oct China Eastern
23 Sep - 23 Oct China Eastern
15 Sep - 15 Oct China Eastern
22 Sep - 14 Oct China Eastern
16 Sep - 13 Oct China Eastern
16 Sep - 21 Oct China Eastern
03 Sep - 08 Sep Air China
03 Sep - 09 Sep Air China
08 Sep - 29 Sep Air China
22 Sep - 29 Sep Air China
15 Sep - 29 Sep Air China
04 Sep - 08 Sep Air China
21 Sep - 29 Sep Air China
14 Sep - 29 Sep Air China
02 Sep - 09 Sep Air China
02 Sep - 07 Sep Air China

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Feel free to contact us with any feedback or request another flight research.