Varna and Burgas feature an advantageous geographic location as they can be reached from all over Europe, Middle East, part of Asia and North Africa within max 3 hours of flying time and therefore also by narrow-body aircraft.
Varna Airport and Burgas Airport are conveniently located for outgoing traffic, providing access to:

900,000 inhabitants within 40 minutes of driving time

1,400,000 inhabitants within 80 minutes of driving time

3,000,000 inhabitants within 120 minutes of driving time