Cheapest return flights from Denver to Frankfurt in December from $762

Best time to book flights for Denver (DEN) to Frankfurt (FRA) flights at AirHint

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

Return flights

04 Dec - 14 Dec Turkish Airlines
02 Dec - 09 Dec Icelandair
02 Dec - 09 Dec Lufthansa direct
12 Dec - 19 Dec United direct
04 Dec - 14 Dec Lufthansa direct
22 Dec - 29 Dec Lufthansa direct
18 Dec - 26 Dec United direct

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

Skyscanner

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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