Cheapest return SEA–CPH flights, October

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

Return flights

04 Oct - 11 Oct Icelandair
06 Oct - 13 Oct Icelandair
07 Oct - 14 Oct Icelandair
22 Oct - 29 Oct Icelandair
01 Oct - 08 Oct Icelandair
11 Oct - 18 Oct Icelandair
14 Oct - 21 Oct Icelandair
15 Oct - 22 Oct Icelandair
16 Oct - 23 Oct Icelandair
08 Oct - 15 Oct Icelandair
25 Oct - 01 Nov Icelandair

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

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