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

Return flights

09 Jul - 11 Jul	Ryanair
09 Jul - 18 Jul	Ryanair
12 Jul - 14 Jul	Ryanair
02 Jul - 07 Jul	Eurowings
03 Jul - 07 Jul	SunExpress
16 Jul - 18 Jul	Eurowings
07 Jul - 21 Jul	Ryanair	direct
04 Jul - 11 Jul	AJet
12 Jul - 21 Jul	Ryanair
29 Jul - 01 Aug	Ryanair
18 Jul - 21 Jul	Ryanair
29 Jul - 03 Aug	Ryanair
31 Jul - 02 Aug	Ryanair
30 Jul - 02 Aug	Ryanair
31 Jul - 03 Aug	Ryanair
29 Jul - 05 Aug	Ryanair
28 Jul - 01 Aug	Ryanair
08 Jul - 08 Aug	Ryanair
12 Jul - 01 Aug	Ryanair
25 Jul - 01 Aug	Ryanair	direct

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.

Book a cheap hotel in Sofia

Cheap car rent in Sofia

Cheapest return flights from Cologne to Sofia in July from 152€

Return flights