Cheapest one-way flights from Boston to Frankfurt in September from $244

AirHint found the following cheapest one-way flights from Boston (BOS) to Frankfurt (FRA) in September 2026 (see full year).

One-Way flights

09 Sep Lufthansa
18 Sep Azores Airlines
20 Sep Azores Airlines
26 Sep Aer Lingus
19 Sep Aer Lingus
09 Sep Alaska Airlines direct
17 Sep Aer Lingus
18 Sep Condor direct
19 Sep Condor direct
17 Sep Condor direct

Also check the deals for return flights from Boston to Frankfurt in September.

Powered by

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.

Book a cheap hotel in Frankfurt

Cheap car rent in Frankfurt

Feel free to contact us with any feedback or request another flight research.