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

Return flights

25 Aug - 01 Sep	Fly Play
20 Aug - 01 Sep	Fly Play
22 Aug - 05 Sep	Fly Play
20 Aug - 27 Aug	Fly Play
15 Aug - 17 Aug	Fly Play
18 Aug - 25 Aug	Fly Play
25 Aug - 07 Sep	Icelandair
28 Aug - 11 Sep	Icelandair
28 Aug - 03 Sep	Icelandair
28 Aug - 04 Sep	Icelandair
19 Aug - 06 Sep	Icelandair
17 Aug - 03 Sep	Fly Play
24 Aug - 29 Aug	Fly Play
17 Aug - 25 Aug	Fly Play
22 Aug - 29 Aug	Fly Play
19 Aug - 31 Aug	Condor
19 Aug - 28 Aug	Condor
21 Aug - 28 Aug	Condor
25 Aug - 30 Aug	Norse Atlantic Airways
01 Aug - 01 Sep	Fly Play

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

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 August from $427

Return flights