AirHint found the following cheapest return flights from Washington (IAD) to Copenhagen (CPH) in March 2026 (see full year).

Return flights

12 Mar - 19 Mar	Icelandair
22 Mar - 29 Mar	Icelandair
02 Mar - 09 Mar	Icelandair
03 Mar - 10 Mar	Icelandair
11 Mar - 04 Apr	Icelandair
13 Mar - 20 Mar	Icelandair
11 Mar - 04 Apr	Scandinavian Airlines	direct

Also check the deals for one-way flights from Washington to Copenhagen in March.

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 Washington to Copenhagen in March from 410€

Return flights