AirHint found the following cheapest one-way flights from Boston (BOS) to Frankfurt (FRA) in January 2026 (see full year).
One-Way flights
| 18 Jan | Iberia | ||
| 11 Jan | Iberia | ||
| 08 Jan | Iberia | ||
| 11 Jan | Lufthansa | direct | |
| 18 Jan | Lufthansa | direct | |
| 08 Jan | Lufthansa | direct |
Also check the deals for return flights from Boston to Frankfurt in January.
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