AirHint found the following cheapest return flights from London (LHR) to Seoul (ICN)
in April 2025 (see full year ).
Return flights
20 Apr
- 13 May
China Southern
433 €
22 Apr
- 08 May
China Southern
524 €
21 Apr
- 12 May
China Southern
524 €
21 Apr
- 11 May
China Southern
524 €
13 Apr
- 07 May
China Southern
524 €
21 Apr
- 09 May
China Southern
524 €
22 Apr
- 07 May
China Southern
524 €
19 Apr
- 03 May
Shenzhen Airlines
527 €
21 Apr
- 03 May
Shenzhen Airlines
527 €
19 Apr
- 15 May
Shenzhen Airlines
527 €
19 Apr
- 30 Apr
Air China
608 €
20 Apr
- 30 Apr
Air China
608 €
22 Apr
- 30 Apr
Air China
608 €
15 Apr
- 30 Apr
Air China
609 €
16 Apr
- 30 Apr
Air China
613 €
23 Apr
- 30 Apr
Air China
615 €
01 Apr
- 15 Apr
SWISS
630 €
20 Apr
- 28 Apr
China Southern
641 €
14 Apr
- 27 Apr
China Southern
641 €
22 Apr
- 29 Apr
China Southern
645 €
Also check the deals for one-way flights from London to Seoul in April .
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.