Cheapest return flights from Seoul to London in September from $782

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

17 Sep - 25 Sep Emirates
17 Sep - 24 Sep Emirates
17 Sep - 02 Oct Emirates
15 Sep - 21 Sep Vietnam Airlines
16 Sep - 25 Sep Emirates
16 Sep - 24 Sep Emirates
16 Sep - 23 Sep Emirates
18 Sep - 23 Sep Emirates
18 Sep - 24 Sep Emirates
16 Sep - 30 Sep Emirates
16 Sep - 29 Sep Emirates
17 Sep - 20 Oct Emirates
09 Sep - 01 Oct Emirates
23 Sep - 14 Oct Air China
22 Sep - 01 Oct Emirates
20 Sep - 17 Oct Air China
02 Sep - 02 Oct Qatar Airways
10 Sep - 18 Oct Emirates
24 Sep - 01 Oct Qatar Airways
25 Sep - 14 Oct Air China

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