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

Return flights

27 Sep - 04 Oct	Icelandair
03 Sep - 10 Sep	Icelandair
06 Sep - 13 Sep	Icelandair
16 Sep - 26 Sep	Icelandair
03 Sep - 10 Sep	Lufthansa	direct
09 Sep - 16 Sep	Lufthansa	direct
12 Sep - 19 Sep	Icelandair
24 Sep - 01 Oct	Lufthansa	direct
30 Sep - 07 Oct	United	direct
21 Sep - 28 Sep	Lufthansa	direct
18 Sep - 25 Sep	Icelandair
12 Sep - 19 Sep	Lufthansa	direct
15 Sep - 22 Sep	United

Also check the deals for one-way flights from Minneapolis to Frankfurt 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 Frankfurt in September from 527€

Return flights