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

Return flights

31 Jul - 06 Aug	Ryanair
08 Jul - 09 Jul	Ryanair
23 Jul - 28 Jul	Ryanair
03 Jul - 01 Aug	Eurowings
09 Jul - 14 Jul	Ryanair
24 Jul - 28 Jul	Ryanair
22 Jul - 24 Jul	Ryanair
24 Jul - 27 Jul	Eurowings
18 Jul - 25 Jul	Ryanair
04 Jul - 12 Jul	Ryanair
04 Jul - 01 Aug	Ryanair
22 Jul - 25 Jul	Austrian Airlines
22 Jul - 28 Jul	Austrian Airlines
28 Jul - 15 Aug	Ryanair
28 Jul - 12 Aug	Eurowings
13 Jul - 01 Aug	Lufthansa
27 Jul - 08 Aug	Lufthansa
28 Jul - 17 Aug	Ryanair
26 Jul - 16 Aug	Ryanair

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

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 Bucharest in July from $231

Return flights