Cheapest return flights from Denver to Frankfurt in December from $561

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

Return flights

10 Dec - 15 Jan Icelandair
03 Dec - 17 Dec Lufthansa
30 Dec - 13 Jan Lufthansa
03 Dec - 17 Dec Lufthansa direct
10 Dec - 17 Dec Lufthansa direct
10 Dec - 15 Jan United direct
16 Dec - 30 Dec Air Canada
30 Dec - 06 Jan Lufthansa direct
23 Dec - 28 Dec United
18 Dec - 22 Dec Air Canada
23 Dec - 28 Dec Lufthansa direct
20 Dec - 27 Dec United

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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