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

Return flights

17 Sep - 24 Sep	easyJet	direct
24 Sep - 28 Sep	easyJet	direct
03 Sep - 17 Sep	easyJet	direct
23 Sep - 30 Sep	easyJet	direct
10 Sep - 17 Sep	easyJet	direct
21 Sep - 28 Sep	easyJet	direct
07 Sep - 10 Sep	easyJet	direct
25 Sep - 28 Sep	Transavia France	direct
18 Sep - 24 Sep	Vueling Airlines
19 Sep - 23 Sep	easyJet
27 Sep - 05 Oct	Transavia France
15 Sep - 06 Oct	Transavia France

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.

Book a cheap hotel in Sofia

Cheap car rent in Sofia

Cheapest return flights from Paris to Sofia in September from 69€

Return flights