AirHint found the following cheapest return flights from Boston (BOS) to Frankfurt (FRA) in July 2025 (see full year).

Return flights

29 Jul - 30 Aug	Icelandair
22 Jul - 30 Jul	Icelandair
25 Jul - 08 Aug	SWISS
20 Jul - 24 Jul	Air France
29 Jul - 30 Aug	Condor	direct
11 Jul - 28 Jul	TAP
28 Jul - 08 Aug	Condor	direct
20 Jul - 24 Jul	Condor	direct
31 Jul - 10 Aug	Condor	direct
07 Jul - 09 Jul	Condor	direct
25 Jul - 08 Aug	Condor	direct
26 Jul - 31 Jul	Icelandair
08 Jul - 15 Jul	Icelandair
29 Jul - 05 Aug	Icelandair
11 Jul - 18 Jul	TAP
11 Jul - 28 Jul	Condor	direct
22 Jul - 30 Jul	Condor	direct
29 Jul - 05 Aug	Lufthansa	direct
31 Jul - 07 Aug	Icelandair
25 Jul - 01 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.

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Cheapest return flights from Boston to Frankfurt in July from 468€

Return flights