Cheapest return flights from Washington to Helsinki in December from $478

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

Return flights

01 Dec - 11 Dec Air Canada
01 Dec - 08 Dec Delta
02 Dec - 09 Dec Scandinavian Airlines
02 Dec - 07 Dec Scandinavian Airlines
17 Dec - 24 Dec Delta
07 Dec - 12 Dec British Airways
22 Dec - 27 Dec Delta
05 Dec - 27 Dec British Airways
20 Dec - 27 Dec American Airlines
19 Dec - 27 Dec American Airlines

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

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