- Burgas Province 8
- Dobrich Province 8
- Gabrovo Province 2
- Haskovo Province 3
- Kardzali Province 1
- Kyustendil Province 1
- Lovech Province 2
- Montana Province 2
- Pazardzhik Province 1
- Pernik Province 2
- Pleven Province 11
- Plovdiv Province 12
- Razgrad Province 5
- Ruse Province 11
- Shumen Province 6
- Silistra Province 3
- Sliven Province 3
- Sofia City Province 1
- Sofia Province 5
- Stara Zagora Province 3
- Varna Province 4
- Veliko Tarnovo Province 4
- Vidin Province 2
- Vratsa Province 5
- Yambol Province 3
Airports by region in Bulgaria