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

Return flights

29 Aug - 02 Sep	Bulgaria Air
29 Aug - 01 Sep	Bulgaria Air
29 Aug - 03 Sep	Bulgaria Air
31 Aug - 12 Sep	Ryanair
31 Aug - 09 Sep	Ryanair
31 Aug - 01 Sep	Ryanair
31 Aug - 06 Sep	Ryanair
31 Aug - 07 Sep	Ryanair
31 Aug - 02 Sep	Ryanair
29 Aug - 31 Aug	Bulgaria Air
30 Aug - 01 Sep	Ryanair
28 Aug - 31 Aug	Bulgaria Air
26 Aug - 28 Aug	Bulgaria Air
26 Aug - 27 Aug	Bulgaria Air
27 Aug - 29 Aug	Norwegian
26 Aug - 29 Aug	Bulgaria Air
28 Aug - 29 Aug	Bulgaria Air	direct
25 Aug - 30 Aug	Ryanair
25 Aug - 28 Aug	Ryanair
22 Aug - 25 Aug	LOT

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 $251

Return flights