Cheapest one-way flights from Seoul to London in September from $159

AirHint found the following cheapest one-way flights from Seoul (ICN) to London (LGW) in September 2026 (see full year).

One-Way flights

08 Sep AirAsia X
30 Sep AirAsia X
13 Sep AirAsia X
27 Sep Jin Air
18 Sep Thai AirAsia
21 Sep Thai Lion Air
07 Sep Thai Lion Air
20 Sep T'way Air
17 Sep T'way Air
23 Sep Thai Lion Air

Also check the deals for return flights from Seoul to London in September.

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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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