Cheapest return flights from Seattle to Copenhagen in October from $615

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
04 Oct - 11 Oct Scandinavian Airlines direct
03 Oct - 10 Oct Scandinavian Airlines direct
02 Oct - 09 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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