AirHint found the following cheapest return flights from Washington (DCA) to Stockholm (ARN) in December 2025 (see full year).

Return flights

10 Dec - 15 Dec	Delta
03 Dec - 07 Dec	Delta
28 Dec - 08 Jan	KLM
17 Dec - 24 Dec	Delta
26 Dec - 17 Jan	British Airways
15 Dec - 29 Dec	British Airways
01 Dec - 27 Dec	British Airways
19 Dec - 27 Dec	British Airways

Also check the deals for one-way flights from Washington to Stockholm in December.

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 Stockholm in December from 434€

Return flights