AirHint found the following cheapest return flights from Basel (BSL) to Seoul (ICN) in January 2026 (see full year).

Return flights

09 Jan - 19 Jan	Lufthansa
11 Jan - 19 Jan	Lufthansa
16 Jan - 23 Jan	easyJet
20 Jan - 02 Feb	Lufthansa
20 Jan - 23 Feb	Lufthansa
20 Jan - 22 Feb	Lufthansa
10 Jan - 19 Jan	Ryanair
23 Jan - 31 Jan	KLM
11 Jan - 20 Jan	Air France
20 Jan - 21 Feb	Air France
26 Jan - 31 Jan	Air France
20 Jan - 12 Feb	Air France
27 Jan - 13 Feb	Lufthansa
23 Jan - 27 Jan	KLM
30 Jan - 10 Feb	Lufthansa
30 Jan - 08 Feb	Lufthansa
05 Jan - 17 Jan	Air France
20 Jan - 14 Feb	Lufthansa

Also check the deals for one-way flights from Basel to Seoul 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.

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Cheapest return flights from Basel to Seoul in January from $566

Return flights