AirHint found the following cheapest one-way flights from Seoul (ICN) to London (LGW) in September 2025 (see full year).
One-Way flights
| 29 Sep | China Eastern | ||
| 10 Sep | Air Premia | ||
| 17 Sep | Scoot | ||
| 24 Sep | China Eastern | ||
| 20 Sep | China Eastern | ||
| 18 Sep | China Eastern | ||
| 16 Sep | Centrum Air | ||
| 11 Sep | China Eastern | ||
| 25 Sep | Asiana Airlines | ||
| 08 Sep | China Eastern |
Also check the deals for return flights from Seoul to London in September.
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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