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

Return flights

31 Aug - 03 Sep	Eurowings	direct
31 Aug - 05 Sep	Eurowings	direct
17 Aug - 22 Aug	Eurowings	direct
24 Aug - 29 Aug	Eurowings	direct
08 Aug - 22 Aug	Eurowings	direct
31 Aug - 07 Sep	Eurowings	direct
19 Aug - 22 Aug	Ryanair
18 Aug - 22 Aug	Ryanair
08 Aug - 15 Aug	Eurowings	direct
10 Aug - 15 Aug	Eurowings	direct
28 Aug - 03 Sep	Ryanair
30 Aug - 03 Sep	Ryanair
03 Aug - 08 Aug	Eurowings	direct
12 Aug - 15 Aug	Ryanair
16 Aug - 22 Aug	Ryanair
28 Aug - 02 Sep	Lufthansa

Also check the deals for one-way flights from Cologne to Prague in August.

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 August from 88€

Return flights