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

Return flights

31 Jul - 14 Aug	Icelandair
31 Jul - 14 Aug	United	direct
15 Jul - 28 Jul	Turkish Airlines
20 Jul - 24 Jul	Icelandair
09 Jul - 16 Jul	Turkish Airlines
10 Jul - 17 Jul	Condor
30 Jul - 06 Aug	United
26 Jul - 09 Aug	Icelandair
21 Jul - 05 Aug	Condor
25 Jul - 05 Aug	United	direct
28 Jul - 04 Aug	Lufthansa	direct
26 Jul - 02 Aug	Lufthansa
30 Jul - 06 Aug	Lufthansa	direct
21 Jul - 05 Aug	Lufthansa	direct
15 Jul - 29 Jul	Lufthansa	direct
15 Jul - 28 Jul	Lufthansa	direct
09 Jul - 16 Jul	Lufthansa	direct
10 Jul - 17 Jul	Lufthansa	direct
20 Jul - 24 Jul	Lufthansa	direct

Also check the deals for one-way flights from Denver 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 Denver to Frankfurt in July from 676€

Return flights