AirHint found the following cheapest return flights from Boston (BOS) to Frankfurt (FRA) in October 2026 (see full year).
Return flights
| 29 Oct - 09 Nov | TAP | ||
| 07 Oct - 12 Oct | TAP | ||
| 05 Oct - 12 Oct | Icelandair | ||
| 29 Oct - 09 Nov | Lufthansa | direct | |
| 05 Oct - 12 Oct | Lufthansa | direct | |
| 07 Oct - 12 Oct | Lufthansa | direct |
Also check the deals for one-way flights from Boston to Frankfurt in October.
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