AirHint found the following cheapest return flights from Boston (BOS) to Frankfurt (FRA) in August 2026 (see full year).
Return flights
| 12 Aug - 26 Aug | Aer Lingus | ||
| 09 Aug - 23 Aug | Aer Lingus | ||
| 09 Aug - 23 Aug | Condor | direct | |
| 12 Aug - 26 Aug | Condor | direct |
Also check the deals for one-way flights from Boston to Frankfurt in August.
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