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

Return flights

21 Aug - 24 Aug	Air Serbia
28 Aug - 31 Aug	Air Serbia
01 Aug - 08 Aug	Air Serbia
07 Aug - 11 Aug	Air Serbia
26 Aug - 29 Aug	Ryanair
29 Aug - 05 Sep	Wizz Air
01 Aug - 10 Aug	Austrian Airlines
08 Aug - 12 Aug	Lufthansa
08 Aug - 11 Aug	LOT
03 Aug - 10 Aug	Austrian Airlines
31 Aug - 04 Sep	Air Serbia
24 Aug - 26 Aug	Air Serbia
31 Aug - 11 Sep	Air Serbia
31 Aug - 03 Sep	Air Serbia
29 Aug - 21 Sep	Air Serbia
29 Aug - 05 Sep	Bulgaria Air	direct

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 $174

Return flights