Cheapest return flights from Seattle (SEA) to Copenhagen (CPH), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
29 Sep 06 Oct Scandinavian Airlines
Direct Flight
20 Sep 27 Sep Scandinavian Airlines
Direct Flight
13 Sep 20 Sep Scandinavian Airlines
Direct Flight
27 Sep 04 Oct Scandinavian Airlines
Direct Flight
13 Sep 10 Oct Scandinavian Airlines
Direct Flight
22 Sep 29 Sep Scandinavian Airlines
Direct Flight
15 Sep 22 Sep Scandinavian Airlines
Direct Flight
05 Sep 12 Sep Scandinavian Airlines
Direct Flight
18 Sep 25 Sep Scandinavian Airlines
Direct Flight
19 Sep 26 Sep Scandinavian Airlines
Direct Flight
11 Sep 18 Sep Scandinavian Airlines
Direct Flight
25 Sep 02 Oct Scandinavian Airlines
Direct Flight
26 Sep 03 Oct Scandinavian Airlines
Direct Flight
14 Sep 11 Oct Icelandair
08 Sep 15 Sep Scandinavian Airlines
Direct Flight
12 Sep 19 Sep Scandinavian Airlines
Direct Flight
29 Sep 23 Oct Delta
29 Sep 02 Oct Lufthansa
30 Sep 03 Oct Lufthansa
30 Sep 07 Oct Lufthansa
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deals for one-way flights from Seattle to Copenhagen in September.

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Updated Jul 15, 2026.

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