AirHint found the following cheapest return flights from Seattle (SEA) to Munich (MUC) in September 2026 (see full year).

Return flights

05 Sep - 12 Sep	Scandinavian Airlines
01 Sep - 08 Sep	Scandinavian Airlines
19 Sep - 26 Sep	Scandinavian Airlines
12 Sep - 19 Sep	Scandinavian Airlines
13 Sep - 20 Sep	Scandinavian Airlines
30 Sep - 18 Oct	Condor
22 Sep - 29 Sep	Scandinavian Airlines
20 Sep - 27 Sep	Scandinavian Airlines
21 Sep - 28 Sep	Condor
14 Sep - 21 Sep	Finnair
01 Sep - 08 Sep	Lufthansa	direct
30 Sep - 18 Oct	Lufthansa	direct

Also check the deals for one-way flights from Seattle to Munich 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 Seattle to Munich in September from $548

Return flights