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

Return flights

25 Aug - 03 Sep	Ryanair
28 Aug - 03 Sep	Ryanair
27 Aug - 31 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
15 Aug - 07 Sep	Ryanair
22 Aug - 29 Aug	Ryanair
07 Aug - 11 Aug	Ryanair
21 Aug - 24 Aug	Ryanair
06 Aug - 10 Aug	Ryanair
15 Aug - 20 Aug	Ryanair
26 Aug - 31 Aug	Ryanair
22 Aug - 24 Aug	Lufthansa
07 Aug - 14 Aug	Lufthansa

Also check the deals for one-way flights from Cologne to Bucharest 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.

Book a cheap hotel in Bucharest

Cheap car rent in Bucharest

Cheapest return flights from Cologne to Bucharest in August from 167€

Return flights