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

Return flights

27 Aug - 16 Sep	Ryanair	direct
31 Aug - 29 Sep	Ryanair
27 Aug - 12 Sep	Ryanair	direct
27 Aug - 15 Sep	Ryanair	direct
27 Aug - 14 Sep	Ryanair	direct
31 Aug - 17 Sep	Ryanair	direct
31 Aug - 29 Sep	Ryanair	direct
31 Aug - 14 Sep	Ryanair
27 Aug - 09 Sep	Ryanair	direct
31 Aug - 16 Sep	Ryanair	direct
27 Aug - 31 Aug	Ryanair
27 Aug - 30 Aug	Ryanair
27 Aug - 29 Aug	Ryanair
28 Aug - 31 Aug	Pegasus Airlines
26 Aug - 30 Aug	Ryanair
26 Aug - 29 Aug	Pegasus Airlines
29 Aug - 31 Aug	Pegasus Airlines
26 Aug - 31 Aug	Ryanair
26 Aug - 27 Aug	Ryanair
27 Aug - 31 Aug	Ryanair	direct

Also check the deals for one-way flights from Copenhagen 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.

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Cheapest return flights from Copenhagen to Sofia in August from $149

Return flights