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

Return flights

15 Dec - 28 Dec	Icelandair
15 Dec - 26 Dec	Icelandair
01 Dec - 15 Dec	Icelandair
14 Dec - 26 Dec	Vueling Airlines
26 Dec - 12 Jan	Aer Lingus
30 Dec - 07 Jan	British Airways
17 Dec - 03 Jan	Aer Lingus
23 Dec - 06 Jan	Air France
26 Dec - 04 Jan	Aer Lingus
24 Dec - 03 Jan	Air France
19 Dec - 29 Dec	Aer Lingus
22 Dec - 31 Dec	Aer Lingus
18 Dec - 02 Jan	Air France
25 Dec - 07 Jan	Delta
31 Dec - 03 Jan	Scandinavian Airlines
20 Dec - 27 Dec	Icelandair
30 Dec - 03 Jan	Air France
14 Dec - 22 Dec	Air France
13 Dec - 22 Dec	Air France

Also check the deals for one-way flights from Paris to Boston 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 Paris to Boston in December from $551

Return flights