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

Return flights

01 Jul - 04 Jul	Ryanair
01 Jul - 07 Jul	Ryanair
02 Jul - 07 Jul	Ryanair
09 Jul - 14 Jul	Ryanair
03 Jul - 10 Jul	Ryanair
14 Jul - 18 Jul	Ryanair
15 Jul - 18 Jul	Ryanair
16 Jul - 18 Jul	Ryanair
02 Jul - 09 Jul	Ryanair
10 Jul - 17 Jul	Ryanair
29 Jul - 04 Aug	Ryanair
01 Jul - 01 Aug	Ryanair
22 Jul - 04 Aug	Ryanair
29 Jul - 09 Aug	Ryanair
29 Jul - 01 Aug	Ryanair
25 Jul - 04 Aug	Ryanair
31 Jul - 05 Aug	Ryanair
04 Jul - 04 Aug	Ryanair
29 Jul - 03 Aug	Ryanair
18 Jul - 11 Aug	Ryanair

Also check the deals for one-way flights from Cologne 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 Cologne to Sofia in July from $149

Return flights