AirHint found the following cheapest return flights from Boston (BOS) to Frankfurt (FRA) in July 2026 (see full year).

Return flights

28 Jul - 04 Aug	Aer Lingus
24 Jul - 09 Aug	Aer Lingus
23 Jul - 30 Jul	Aer Lingus
23 Jul - 30 Jul	Condor	direct
12 Jul - 26 Jul	Aer Lingus
12 Jul - 26 Jul	Condor	direct
09 Jul - 23 Jul	Aer Lingus
22 Jul - 05 Aug	Condor	direct
08 Jul - 14 Jul	Aer Lingus
01 Jul - 08 Jul	Condor	direct
20 Jul - 26 Jul	Condor	direct
08 Jul - 14 Jul	Condor	direct
09 Jul - 23 Jul	Condor	direct
24 Jul - 09 Aug	Condor	direct
28 Jul - 04 Aug	Lufthansa	direct
29 Jul - 05 Aug	Lufthansa	direct

Also check the deals for one-way flights from Boston to Frankfurt in July.

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

Cheapest return flights from Boston to Frankfurt in July from 546€

Return flights