Cheapest return flights from Seoul to London in April from $525

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

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

Return flights

09 Apr - 23 Apr China Southern
02 Apr - 09 Apr China Southern
09 Apr - 05 May China Eastern
01 Apr - 22 Apr Etihad Airways
09 Apr - 20 Apr China Eastern
01 Apr - 24 Apr Etihad Airways
02 Apr - 20 Apr Etihad Airways
15 Apr - 22 Apr Finnair
10 Apr - 19 Apr Finnair
07 Apr - 19 Apr Finnair
07 Apr - 20 Apr Finnair
09 Apr - 07 May Finnair
16 Apr - 01 May Finnair
10 Apr - 03 May Etihad Airways
07 Apr - 07 May Finnair
10 Apr - 02 May Etihad Airways
01 Apr - 23 May Finnair
29 Apr - 07 May Vietnam Airlines
29 Apr - 05 May Vietnam Airlines
30 Apr - 07 May Vietnam Airlines

Also check the deals for one-way flights from Seoul to London in April.

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