AirHint found the following cheapest return flights from Paris (CDG) to Sofia (SOF) in May 2026 (see full year).

Return flights

08 May - 14 May	Air Serbia
17 May - 04 Jun	Air Serbia
15 May - 04 Jun	Air Serbia
22 May - 30 May	Air Serbia
24 May - 30 May	Air Serbia
01 May - 06 May	Air Serbia
01 May - 09 May	Air Serbia
01 May - 04 May	Air Serbia
22 May - 31 May	Air Serbia
02 May - 07 May	Air Serbia
21 May - 25 May	Air Serbia
28 May - 31 May	Air Serbia
29 May - 01 Jun	Air Serbia
16 May - 04 Jun	easyJet
18 May - 04 Jun	Air Serbia

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

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 May from 139€

Return flights