Cheapest return flights from Seoul to London in September from $761

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

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

Return flights

19 Sep - 21 Sep Asiana Airlines
17 Sep - 24 Sep Emirates
17 Sep - 29 Sep Emirates
17 Sep - 30 Sep Emirates
19 Sep - 22 Sep MIAT Mongolian Airlines
16 Sep - 23 Sep Emirates
18 Sep - 25 Sep Emirates
16 Sep - 30 Sep Emirates
16 Sep - 29 Sep Emirates
16 Sep - 22 Sep Emirates
22 Sep - 02 Oct Emirates
17 Sep - 13 Oct Emirates
14 Sep - 05 Oct Emirates
21 Sep - 03 Oct Emirates
23 Sep - 02 Oct Emirates
23 Sep - 20 Oct Emirates
20 Sep - 22 Oct Emirates
24 Sep - 13 Oct Emirates
24 Sep - 14 Oct Emirates
23 Sep - 14 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.

Book a cheap hotel in London

Cheap car rent in London