AirHint found the following cheapest return flights from Washington (IAD) to Paris (CDG) in December 2025 (see full year).

Return flights

10 Dec - 14 Jan	Icelandair
07 Dec - 14 Dec	Icelandair
10 Dec - 17 Dec	Icelandair
31 Dec - 24 Jan	Icelandair
08 Dec - 15 Dec	Icelandair
06 Dec - 14 Dec	Icelandair
09 Dec - 16 Dec	Icelandair
12 Dec - 12 Jan	Icelandair
08 Dec - 13 Dec	Icelandair
12 Dec - 14 Dec	Icelandair
12 Dec - 15 Dec	Icelandair
06 Dec - 12 Dec	Icelandair
12 Dec - 17 Dec	Icelandair
13 Dec - 11 Jan	Icelandair
28 Dec - 17 Jan	Lufthansa
30 Dec - 24 Jan	SWISS
29 Dec - 24 Jan	SWISS
25 Dec - 17 Jan	KLM
24 Dec - 17 Jan	Icelandair
26 Dec - 17 Jan	KLM

Also check the deals for one-way flights from Washington to Paris 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 Paris in December from $447

Return flights