AirHint found the following cheapest one-way flights from Boston (BOS) to Frankfurt (FRA) in May 2026 (see full year).
One-Way flights
| 20 May | Lufthansa | ||
| 27 May | Icelandair | ||
| 18 May | jetBlue | ||
| 26 May | Azores Airlines | ||
| 21 May | Aer Lingus | ||
| 12 May | Azores Airlines | ||
| 10 May | TAP | ||
| 11 May | TAP | ||
| 07 May | TAP | ||
| 14 May | TAP |
Also check the deals for return flights from Boston to Frankfurt in May.
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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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