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

Return flights

20 Mar - 11 Apr	Icelandair
05 Mar - 16 Mar	Icelandair
05 Mar - 15 Mar	Icelandair
04 Mar - 14 Mar	Scandinavian Airlines
04 Mar - 14 Mar	Scandinavian Airlines	direct
31 Mar - 08 Apr	TAP
05 Mar - 16 Mar	Scandinavian Airlines	direct
16 Mar - 23 Mar	Icelandair
26 Mar - 02 Apr	Icelandair
06 Mar - 13 Mar	Icelandair

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 $415

Return flights