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

Return flights

09 Dec - 30 Dec	Scandinavian Airlines
03 Dec - 24 Dec	TAP
10 Dec - 31 Dec	TAP
02 Dec - 16 Dec	TAP
03 Dec - 17 Dec	TAP
02 Dec - 12 Dec	TAP
02 Dec - 08 Dec	TAP
03 Dec - 15 Dec	TAP
03 Dec - 10 Dec	TAP
02 Dec - 15 Dec	TAP
16 Dec - 06 Jan	TAP
09 Dec - 02 Jan	TAP
17 Dec - 07 Jan	TAP

Also check the deals for one-way flights from Washington to Geneva 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 Geneva in December from $838

Return flights