AirHint found the following cheapest return flights from Porto (OPO) to Sofia (SOF) in April 2026 (see full year).

Return flights

15 Apr - 20 Apr	Ryanair
15 Apr - 19 Apr	Ryanair
16 Apr - 20 Apr	Ryanair
28 Apr - 05 May	Ryanair
24 Apr - 27 Apr	Ryanair
14 Apr - 29 Apr	Ryanair
28 Apr - 06 May	Ryanair
16 Apr - 19 Apr	Ryanair
12 Apr - 16 Apr	Ryanair
23 Apr - 26 Apr	Ryanair
22 Apr - 02 May	Ryanair
25 Apr - 02 May	Ryanair
19 Apr - 23 Apr	Ryanair
03 Apr - 10 Apr	Ryanair
30 Apr - 04 May	Air Serbia
23 Apr - 03 May	Ryanair
28 Apr - 03 May	Ryanair
29 Apr - 03 May	Ryanair
30 Apr - 02 May	Air Serbia
30 Apr - 03 May	Air Serbia

Also check the deals for one-way flights from Porto to Sofia in April.

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 Porto to Sofia in April from 98€

Return flights