AirHint found the following cheapest return flights from Seoul (ICN) to Sofia (SOF) in February 2026 (see full year).

Return flights

08 Feb - 11 Mar	KLM
08 Feb - 09 Mar	KLM
06 Feb - 05 Mar	Air France
07 Feb - 05 Mar	Air France
07 Feb - 09 Mar	Air France
08 Feb - 10 Mar	KLM
08 Feb - 08 Mar	KLM
07 Feb - 08 Mar	Air France
06 Feb - 08 Mar	Air France
18 Feb - 25 Feb	LOT
06 Feb - 04 Mar	Lufthansa
05 Feb - 12 Feb	KLM
06 Feb - 17 Feb	AirAsia X
21 Feb - 28 Feb	LOT
19 Feb - 26 Feb	KLM
21 Feb - 26 Feb	Air France
06 Feb - 18 Feb	LOT
19 Feb - 25 Feb	KLM
05 Feb - 08 Feb	KLM
19 Feb - 24 Feb	Turkish Airlines

Also check the deals for one-way flights from Seoul to Sofia in February.

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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Cheapest return flights from Seoul to Sofia in February from 496€

Return flights