AirHint found the following cheapest return flights from Sofia (SOF) to Bucharest (OTP) in January 2026 (see full year).

Return flights

25 Jan - 01 Feb	Ryanair
22 Jan - 23 Jan	Ryanair
26 Jan - 29 Jan	Ryanair
29 Jan - 30 Jan	Wizz Air
29 Jan - 31 Jan	Ryanair
27 Jan - 29 Jan	Ryanair
23 Jan - 22 Feb	Ryanair
26 Jan - 28 Jan	Ryanair
27 Jan - 28 Jan	Ryanair
28 Jan - 30 Jan	Ryanair
26 Jan - 02 Feb	Ryanair
28 Jan - 29 Jan	Ryanair
29 Jan - 29 Jan	Wizz Air
31 Jan - 01 Feb	Ryanair
30 Jan - 01 Feb	Wizz Air
23 Jan - 22 Feb	TAROM	direct
26 Jan - 02 Feb	TAROM	direct

Also check the deals for one-way flights from Sofia to Bucharest in January.

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 January from $106

Return flights