AirHint found the following cheapest return flights from Seoul (GMP) to London (LGW) in January 2026 (see full year).

Return flights

22 Jan - 28 Jan	Air China
22 Jan - 25 Jan	Air China
27 Jan - 04 Feb	Air China
22 Jan - 30 Jan	Air China
15 Jan - 30 Jan	Air China
27 Jan - 06 Feb	Air China
15 Jan - 21 Jan	Air China
15 Jan - 01 Feb	Air China
22 Jan - 11 Feb	Air China
17 Jan - 23 Jan	Air China
13 Jan - 23 Jan	Air China
21 Jan - 28 Jan	China Eastern
17 Jan - 30 Jan	Air China
13 Jan - 16 Jan	Air China
03 Jan - 15 Feb	Air China

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

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

Cheapest return flights from Seoul to London in January from $532

Return flights