AirHint found the following cheapest return flights from Frankfurt (FRA) to Boston (BOS) in August 2026 (see full year).

Return flights

16 Aug - 30 Aug	Condor	direct
29 Aug - 10 Sep	Delta
17 Aug - 31 Aug	Condor	direct
20 Aug - 25 Aug	Condor	direct
01 Aug - 30 Aug	Condor	direct
01 Aug - 17 Aug	Condor	direct
02 Aug - 17 Aug	Condor	direct

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Boston in August from 550€

Return flights