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

Return flights

26 Jul - 09 Aug	Aer Lingus
26 Jul - 07 Aug	Aer Lingus
16 Jul - 28 Jul	TAP
29 Jul - 12 Aug	Condor	direct
16 Jul - 28 Jul	Condor	direct
16 Jul - 19 Jul	Condor	direct
26 Jul - 09 Aug	Condor	direct
01 Jul - 15 Jul	Condor	direct
17 Jul - 26 Jul	Condor	direct
26 Jul - 07 Aug	Condor	direct
10 Jul - 17 Jul	Icelandair
15 Jul - 22 Jul	Icelandair
20 Jul - 27 Jul	Icelandair
05 Jul - 12 Jul	Icelandair
25 Jul - 01 Aug	Lufthansa

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 $700

Return flights