Cheapest return flights from Seattle to Copenhagen in April from 385€

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

Return flights

16 Apr - 21 Apr Icelandair
19 Apr - 26 Apr Icelandair
23 Apr - 30 Apr Icelandair
06 Apr - 13 Apr Icelandair
15 Apr - 22 Apr Icelandair
18 Apr - 25 Apr Icelandair
28 Apr - 05 May Icelandair
09 Apr - 16 Apr Icelandair
12 Apr - 19 Apr Icelandair
03 Apr - 10 Apr Icelandair

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

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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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