Cheapest return flights from Seattle to Copenhagen in October from $443

Best time to book flights for Seattle (SEA) to Copenhagen (CPH) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Copenhagen (CPH) in October 2025 (see full year).

Return flights

10 Oct - 24 Oct Scandinavian Airlines direct
27 Oct - 03 Nov Icelandair
07 Oct - 14 Oct Icelandair
12 Oct - 19 Oct Icelandair
17 Oct - 24 Oct Icelandair
02 Oct - 09 Oct Icelandair
03 Oct - 11 Oct Icelandair
15 Oct - 22 Oct Scandinavian Airlines direct
08 Oct - 15 Oct Scandinavian Airlines direct
05 Oct - 12 Oct Scandinavian Airlines direct
12 Oct - 19 Oct Scandinavian Airlines direct

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

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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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