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

Return flights

28 Aug - 03 Sep	Ryanair
11 Aug - 29 Sep	Ryanair
12 Aug - 03 Sep	Vueling Airlines
30 Aug - 03 Sep	Norwegian Air Sweden AOC
11 Aug - 28 Sep	Ryanair
30 Aug - 04 Sep	Norwegian Air Sweden AOC
13 Aug - 04 Sep	Ryanair
12 Aug - 21 Aug	Vueling Airlines
21 Aug - 25 Aug	Vueling Airlines
13 Aug - 19 Aug	Ryanair
13 Aug - 22 Aug	Ryanair
11 Aug - 19 Aug	Ryanair
12 Aug - 20 Aug	Vueling Airlines
11 Aug - 21 Aug	Ryanair
22 Aug - 25 Aug	Ryanair
12 Aug - 19 Aug	Vueling Airlines
13 Aug - 21 Aug	Ryanair

Also check the deals for one-way flights from Porto 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.

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Cheapest return flights from Porto to Bucharest in August from $244

Return flights