Find which airlines fly direct from Köln/Bonn to Sofia, which days they fly and book direct flights.
Direct departures
Monday
Ryanair
Ryanair
Tuesday
Ryanair
Ryanair
Wednesday
Ryanair
Ryanair
Saturday
Ryanair
Ryanair
Sunday
Ryanair
Ryanair
Direct returns
Monday
Ryanair
Ryanair
Tuesday
Ryanair
Ryanair
Wednesday
Ryanair
Ryanair
Saturday
Ryanair
Ryanair
Sunday
Ryanair
Ryanair
Cologne (undefined)Germany
Sofia (SOF)Bulgaria