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

Return flights

16 Mar - 30 Mar	Austrian Airlines
08 Mar - 18 Mar	Austrian Airlines
17 Mar - 25 Mar	Austrian Airlines
14 Mar - 25 Mar	Ryanair
11 Mar - 19 Mar	easyJet
18 Mar - 28 Mar	easyJet
15 Mar - 29 Mar	Wizz Air Malta
16 Mar - 31 Mar	Ryanair
17 Mar - 31 Mar	easyJet
15 Mar - 31 Mar	easyJet
26 Mar - 09 Apr	easyJet
25 Mar - 11 Apr	easyJet
26 Mar - 11 Apr	easyJet
20 Mar - 11 Apr	easyJet
26 Mar - 08 Apr	easyJet
22 Mar - 08 Apr	Austrian Airlines
31 Mar - 07 Apr	easyJet
28 Mar - 04 Apr	easyJet
29 Mar - 08 Apr	Wizz Air
26 Mar - 10 Apr	easyJet

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

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 March from 473€

Return flights