Cheapest return flights from Seattle to Copenhagen in January from 379€

AirHint found the following cheapest return flights from Seattle (SEA) to Copenhagen (CPH) in January 2026 (see full year).

Return flights

21 Jan - 28 Jan Icelandair
23 Jan - 30 Jan Icelandair
11 Jan - 20 Jan Icelandair
12 Jan - 20 Jan Icelandair
12 Jan - 21 Jan Icelandair
13 Jan - 20 Jan Icelandair
13 Jan - 21 Jan Icelandair
13 Jan - 22 Jan Icelandair
18 Jan - 27 Jan Icelandair
19 Jan - 27 Jan Icelandair
24 Jan - 02 Feb Icelandair
25 Jan - 02 Feb Icelandair
25 Jan - 03 Feb Icelandair
26 Jan - 02 Feb Icelandair
26 Jan - 04 Feb Icelandair
27 Jan - 04 Feb Icelandair
27 Jan - 05 Feb Icelandair
28 Jan - 05 Feb Icelandair
29 Jan - 07 Feb Icelandair
30 Jan - 07 Feb Icelandair

Also check the deals for one-way flights from Seattle to Copenhagen in January.

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