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

Return flights

19 Jul - 22 Jul	Wizz Air
21 Jul - 02 Aug	Air Serbia
21 Jul - 23 Jul	Air Serbia
09 Jul - 16 Jul	Ryanair
24 Jul - 28 Jul	Air Serbia
19 Jul - 21 Jul	Air Serbia
24 Jul - 30 Jul	Air Serbia
14 Jul - 16 Jul	Air Serbia
26 Jul - 28 Jul	Wizz Air
12 Jul - 14 Jul	Air Serbia
14 Jul - 18 Jul	Air Serbia
20 Jul - 01 Aug	Turkish Airlines
21 Jul - 02 Aug	TAROM	direct

Also check the deals for one-way flights from Sofia 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 Sofia to Bucharest in July from $190

Return flights