Cheapest one-way flights from Washington to Copenhagen in December from $242

AirHint found the following cheapest one-way flights from Washington (IAD) to Copenhagen (CPH) in December 2025 (see full year).

One-Way flights

10 Dec TAP
29 Dec SWISS
26 Dec TAP
10 Dec Air France direct
29 Dec Air France direct
21 Dec United
20 Dec KLM

Also check the deals for return flights from Washington to Copenhagen in December.

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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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