AirHint found the following cheapest return flights from Denver (DEN) to Frankfurt (FRA) in March 2026 (see full year).

Return flights

14 Mar - 28 Mar	Turkish Airlines
17 Mar - 31 Mar	Turkish Airlines
28 Mar - 04 Apr	Turkish Airlines
20 Mar - 04 Apr	Turkish Airlines
10 Mar - 04 Apr	Turkish Airlines
17 Mar - 31 Mar	United	direct
04 Mar - 11 Mar	Lufthansa	direct
24 Mar - 31 Mar	Lufthansa	direct
10 Mar - 04 Apr	Lufthansa	direct
28 Mar - 04 Apr	Lufthansa	direct
14 Mar - 21 Mar	Lufthansa
14 Mar - 28 Mar	Lufthansa	direct

Also check the deals for one-way flights from Denver to Frankfurt in March.

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 March from $720

Return flights