AirHint found the following cheapest return flights from Minneapolis (MSP) to Seoul (ICN) in September 2025 (see full year).

Return flights

02 Sep - 16 Sep	WestJet
02 Sep - 30 Sep	United
22 Sep - 26 Sep	American Airlines
13 Sep - 23 Sep	Delta	direct
02 Sep - 30 Sep	Delta	direct
23 Sep - 07 Oct	Delta	direct
22 Sep - 26 Sep	Delta	direct
11 Sep - 16 Sep	Delta	direct

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

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 Minneapolis to Seoul in September from 759€

Return flights