Cheapest return flights from Seoul to Basel in September from $2149

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

Return flights

26 Sep - 02 Oct Japan Airlines
16 Sep - 11 Oct Japan Airlines
17 Sep - 11 Oct Japan Airlines

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

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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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