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

Return flights

05 Dec - 14 Dec	Brussels Airlines
07 Dec - 14 Dec	Brussels Airlines
01 Dec - 07 Dec	Brussels Airlines
03 Dec - 14 Dec	Brussels Airlines
03 Dec - 07 Dec	Brussels Airlines
05 Dec - 07 Dec	Brussels Airlines
05 Dec - 09 Dec	SWISS
05 Dec - 08 Dec	Iberia
14 Dec - 12 Jan	Icelandair
13 Dec - 12 Jan	Icelandair
07 Dec - 12 Dec	Icelandair
02 Dec - 06 Dec	Icelandair
07 Dec - 10 Jan	Icelandair
12 Dec - 12 Jan	Icelandair
11 Dec - 12 Jan	Icelandair
11 Dec - 14 Jan	Icelandair
31 Dec - 24 Jan	Icelandair
14 Dec - 11 Jan	Icelandair
15 Dec - 10 Jan	Icelandair
31 Dec - 07 Jan	Icelandair

Also check the deals for one-way flights from Boston 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 Boston to Paris in December from 365€

Return flights