AirHint found the following cheapest return flights from Prague (PRG) to Sofia (SOF) in July 2025 (see full year).

Return flights

30 Jul - 06 Aug	Ryanair
30 Jul - 02 Aug	Ryanair
28 Jul - 04 Aug	LOT
31 Jul - 01 Aug	Ryanair
29 Jul - 30 Jul	Smart Wings
31 Jul - 04 Aug	Bulgaria Air
31 Jul - 12 Aug	Ryanair
30 Jul - 01 Aug	Ryanair
31 Jul - 07 Aug	Bulgaria Air
31 Jul - 03 Aug	Bulgaria Air
31 Jul - 15 Aug	Bulgaria Air	direct
29 Jul - 31 Jul	Smart Wings
30 Jul - 30 Jul	Ryanair
28 Jul - 29 Jul	Wizz Air
27 Jul - 31 Jul	Wizz Air

Also check the deals for one-way flights from Prague to Sofia in July.

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 Prague to Sofia in July from 191€

Return flights