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

Return flights

26 Aug - 29 Aug	Ryanair
21 Aug - 29 Aug	Air Serbia
27 Aug - 31 Aug	Air Serbia
28 Aug - 31 Aug	Air Serbia
01 Aug - 04 Aug	Air Serbia
07 Aug - 21 Aug	Air Serbia
21 Aug - 23 Aug	Air Serbia
07 Aug - 12 Aug	Air Serbia
03 Aug - 14 Aug	Austrian Airlines
05 Aug - 16 Aug	Austrian Airlines

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

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Cheapest return flights from Sofia to Prague in August from $166

Return flights