AirHint found the following cheapest return flights from Paris (ORY) to Sofia (SOF) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep	easyJet	direct
16 Sep - 17 Sep	easyJet	direct
24 Sep - 28 Sep	easyJet	direct
16 Sep - 16 Sep	Wizz Air Malta
17 Sep - 18 Sep	easyJet
09 Sep - 25 Sep	easyJet	direct
14 Sep - 20 Sep	Transavia France
01 Sep - 10 Sep	easyJet
11 Sep - 14 Sep	Transavia France	direct
03 Sep - 06 Sep	easyJet

Also check the deals for one-way flights from Paris to Sofia in September.

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 Paris to Sofia in September from $76

Return flights