| Sliven to Zuzemberk | 604.18 mi (972.33 km) |
| Sliven to Abaran | 1,483.73 mi (2,387.82 km) |
| Sliven to Abrera | 1,250.69 mi (2,012.79 km) |
| Sliven to Acala del Rio | 1,732.89 mi (2,788.82 km) |
| Sliven to Adeje | 2,591.41 mi (4,170.47 km) |
| Sliven to Adra | 1,603.97 mi (2,581.34 km) |
| Sliven to Aguilar | 1,666.04 mi (2,681.23 km) |
| Sliven to Aguilas | 1,513.42 mi (2,435.61 km) |
| Sliven to Alacuas | 1,407.38 mi (2,264.96 km) |
| Sliven to Alayor | 1,163.91 mi (1,873.14 km) |
| Sliven to Albacete | 1,488.22 mi (2,395.05 km) |
| Sliven to Albal | 1,406.28 mi (2,263.19 km) |
| Sliven to Albatera | 1,457.33 mi (2,345.35 km) |
| Sliven to Alberique | 1,417.73 mi (2,281.62 km) |
| Sliven to Albolote | 1,623.20 mi (2,612.29 km) |
