AirHint found the following cheapest return flights from Thessaloniki (SKG) to Sofia (SOF) in August 2025 (see full year).

Return flights

06 Aug - 07 Aug	Ryanair
26 Aug - 26 Aug	Aegean Airlines
14 Aug - 21 Aug	Aegean Airlines
13 Aug - 17 Aug	Aegean Airlines
14 Aug - 17 Aug	Aegean Airlines
07 Aug - 10 Aug	Aegean Airlines
21 Aug - 25 Aug	Aegean Airlines
04 Aug - 06 Aug	Aegean Airlines
03 Aug - 13 Aug	Ryanair
09 Aug - 13 Aug	Aegean Airlines
29 Aug - 18 Sep	SKY express
29 Aug - 07 Sep	SKY express

Also check the deals for one-way flights from Thessaloniki to Sofia in August.

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 Thessaloniki to Sofia in August from 211€

Return flights