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

Return flights

06 Aug - 24 Aug	British Airways
06 Aug - 23 Aug	British Airways
14 Aug - 17 Aug	Condor
27 Aug - 31 Aug	Condor
27 Aug - 30 Aug	Condor
25 Aug - 01 Sep	Condor
28 Aug - 04 Sep	Condor
28 Aug - 01 Sep	Condor
20 Aug - 15 Sep	Condor
29 Aug - 05 Sep	Condor
06 Aug - 01 Sep	Lufthansa
05 Aug - 22 Aug	Lufthansa
13 Aug - 16 Aug	Condor
20 Aug - 23 Aug	Condor
01 Aug - 08 Aug	British Airways
02 Aug - 16 Aug	United
25 Aug - 05 Sep	Lufthansa

Also check the deals for one-way flights from Vienna 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 Vienna to Boston in August from $538

Return flights