| Sliven to Anagni | 676.65 mi (1,088.97 km) |
| Sliven to Ancona | 648.62 mi (1,043.85 km) |
| Sliven to Andria | 525.10 mi (845.07 km) |
| Sliven to Angri | 621.15 mi (999.64 km) |
| Sliven to Anguillara Sabazia | 718.27 mi (1,155.94 km) |
| Sliven to Anzio | 707.35 mi (1,138.37 km) |
| Sliven to Anzola dell'Emilia | 766.94 mi (1,234.28 km) |
| Sliven to Aosta | 962.64 mi (1,549.22 km) |
| Sliven to Apricena | 560.88 mi (902.65 km) |
| Sliven to Aprilia | 704.44 mi (1,133.68 km) |
| Sliven to Aradeo | 459.76 mi (739.91 km) |
| Sliven to Aragona | 764.03 mi (1,229.58 km) |
| Sliven to Arco | 794.53 mi (1,278.67 km) |
| Sliven to Arcola | 829.49 mi (1,334.93 km) |
| Sliven to Arcore | 865.95 mi (1,393.62 km) |
