Cheapest one-way flights from Boston to Frankfurt in September from 198€

AirHint found the following cheapest one-way flights from Boston (BOS) to Frankfurt (FRA) in September 2025 (see full year).

One-Way flights

15 Sep Icelandair
11 Sep Icelandair
06 Sep Icelandair
14 Sep Icelandair
10 Sep Aer Lingus
10 Sep United direct
14 Sep Lufthansa direct
11 Sep Lufthansa direct
06 Sep Lufthansa direct
15 Sep Lufthansa direct

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

Skyscanner

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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