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

Return flights

04 Dec - 13 Dec	Icelandair
01 Dec - 15 Dec	British Airways
03 Dec - 13 Dec	British Airways
02 Dec - 13 Dec	British Airways
28 Dec - 11 Jan	British Airways
24 Dec - 02 Jan	British Airways
19 Dec - 27 Dec	Delta

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

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 Prague in December from 488€

Return flights