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

Return flights

06 Dec - 09 Dec	Lufthansa
14 Dec - 18 Dec	Lufthansa
14 Dec - 17 Dec	Lufthansa
03 Dec - 07 Dec	Eurowings
10 Dec - 15 Dec	Lufthansa
13 Dec - 17 Dec	Lufthansa
15 Dec - 18 Dec	Lufthansa
01 Dec - 04 Dec	Lufthansa
12 Dec - 17 Dec	Lufthansa
11 Dec - 15 Dec	Lufthansa
29 Dec - 02 Jan	Lufthansa
30 Dec - 02 Jan	Lufthansa
26 Dec - 04 Jan	Austrian Airlines
28 Dec - 01 Jan	Lufthansa
27 Dec - 02 Jan	Lufthansa
30 Dec - 01 Jan	Lufthansa
30 Dec - 03 Jan	Lufthansa
29 Dec - 03 Jan	Lufthansa
31 Dec - 02 Jan	Wizz Air Malta
27 Dec - 01 Jan	Lufthansa

Also check the deals for one-way flights from Cologne 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 Cologne to Prague in December from 164€

Return flights