| Sliven to Amorebieta | 1,463.03 mi (2,354.52 km) |
| Sliven to Amposta | 1,330.35 mi (2,141.00 km) |
| Sliven to Amurrio | 1,478.12 mi (2,378.80 km) |
| Sliven to Andoain | 1,427.32 mi (2,297.06 km) |
| Sliven to Andraitx | 1,258.51 mi (2,025.38 km) |
| Sliven to Andujar | 1,622.31 mi (2,610.86 km) |
| Sliven to Antequera | 1,674.72 mi (2,695.19 km) |
| Sliven to Antigua | 2,444.16 mi (3,933.50 km) |
| Sliven to Aranda de Duero | 1,530.25 mi (2,462.71 km) |
| Sliven to Aranjuez | 1,555.05 mi (2,502.61 km) |
| Sliven to Archena | 1,480.77 mi (2,383.08 km) |
| Sliven to Arcos de la Frontera | 1,744.99 mi (2,808.29 km) |
| Sliven to Arenys de Mar | 1,216.97 mi (1,958.52 km) |
| Sliven to Arenys de Munt | 1,217.05 mi (1,958.65 km) |
| Sliven to Argentona | 1,224.81 mi (1,971.15 km) |
