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

Return flights

13 Nov - 20 Nov	Icelandair
18 Nov - 25 Nov	Icelandair
03 Nov - 10 Nov	Icelandair
08 Nov - 15 Nov	Icelandair
28 Nov - 05 Dec	Icelandair
16 Nov - 21 Nov	Delta
27 Nov - 30 Nov	Icelandair
23 Nov - 30 Nov	Icelandair

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

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 Copenhagen in November from 380€

Return flights