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

Return flights

28 Aug - 10 Sep	Fly Play
28 Aug - 13 Sep	Fly Play
07 Aug - 21 Aug	Condor
21 Aug - 28 Aug	Condor
24 Aug - 28 Aug	Condor
12 Aug - 26 Aug	Condor
27 Aug - 03 Sep	Condor
27 Aug - 04 Sep	TAP
21 Aug - 05 Sep	TAP
09 Aug - 29 Aug	Condor
16 Aug - 19 Aug	Condor
19 Aug - 05 Sep	Condor
10 Aug - 12 Aug	Condor
01 Aug - 24 Aug	Lufthansa
01 Aug - 23 Aug	Lufthansa
02 Aug - 16 Aug	Lufthansa

Also check the deals for one-way flights from Prague 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 Prague to Boston in August from $466

Return flights