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

Return flights

08 Dec - 13 Dec	Icelandair
15 Dec - 16 Jan	Icelandair
07 Dec - 16 Dec	Icelandair
12 Dec - 28 Dec	Icelandair
15 Dec - 27 Dec	Icelandair
04 Dec - 07 Dec	Aer Lingus
12 Dec - 22 Dec	Icelandair
16 Dec - 28 Dec	Icelandair
24 Dec - 17 Jan	Icelandair
11 Dec - 20 Dec	Icelandair
15 Dec - 25 Dec	Icelandair
22 Dec - 29 Dec	Scandinavian Airlines
29 Dec - 11 Jan	Aer Lingus
29 Dec - 10 Jan	British Airways
18 Dec - 03 Jan	Aer Lingus
19 Dec - 05 Jan	Aer Lingus
26 Dec - 05 Jan	Aer Lingus
24 Dec - 04 Jan	Air France
24 Dec - 02 Jan	WestJet
27 Dec - 04 Jan	Aer Lingus

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 399€

Return flights