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

Return flights

15 Oct - 22 Oct	Brussels Airlines
06 Oct - 26 Oct	Icelandair
05 Oct - 12 Oct	Icelandair
06 Oct - 13 Oct	Icelandair
07 Oct - 14 Oct	Icelandair
08 Oct - 15 Oct	Icelandair
09 Oct - 16 Oct	Icelandair
10 Oct - 17 Oct	Icelandair
14 Oct - 21 Oct	Icelandair
19 Oct - 26 Oct	Icelandair
22 Oct - 03 Nov	Icelandair
31 Oct - 03 Nov	Icelandair
31 Oct - 09 Nov	Icelandair
12 Oct - 09 Nov	Aer Lingus
29 Oct - 05 Nov	Icelandair
30 Oct - 06 Nov	Icelandair
31 Oct - 07 Nov	Icelandair
26 Oct - 02 Nov	Icelandair
29 Oct - 04 Nov	Vueling Airlines
26 Oct - 06 Nov	Icelandair

Also check the deals for one-way flights from Paris to Boston in October.

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 October from $490

Return flights