Cheapest return FRA–BOS flights, August

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

Return flights

20 Aug - 25 Aug SWISS
31 Aug - 07 Sep Aer Lingus
26 Aug - 05 Sep KLM
12 Aug - 19 Aug SWISS
13 Aug - 20 Aug SWISS
13 Aug - 31 Aug SWISS
26 Aug - 31 Aug SWISS
17 Aug - 28 Aug United
25 Aug - 01 Sep SWISS
26 Aug - 02 Sep SWISS
27 Aug - 03 Sep SWISS
17 Aug - 01 Sep United
17 Aug - 04 Sep United
26 Aug - 09 Sep KLM
31 Aug - 14 Sep Air France
28 Aug - 04 Sep Austrian Airlines
15 Aug - 28 Aug SWISS
24 Aug - 31 Aug SWISS
10 Aug - 17 Aug SWISS
19 Aug - 26 Aug Lufthansa

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

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