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

Return flights

25 Aug - 31 Aug	Fly Play
27 Aug - 31 Aug	Fly Play
20 Aug - 31 Aug	Fly Play
22 Aug - 31 Aug	Fly Play
18 Aug - 25 Aug	Ryanair
22 Aug - 29 Aug	Fly Play
18 Aug - 29 Aug	Ryanair
18 Aug - 27 Aug	Fly Play
15 Aug - 17 Aug	Fly Play
11 Aug - 17 Aug	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 350€

Return flights