| Sliven to Cuevas del Almanzora | 1,530.63 mi (2,463.30 km) |
| Sliven to Cullera | 1,403.01 mi (2,257.92 km) |
| Sliven to Culleredo | 1,742.77 mi (2,804.71 km) |
| Sliven to Cunit | 1,268.98 mi (2,042.23 km) |
| Sliven to Daganzo de Arriba | 1,537.97 mi (2,475.12 km) |
| Sliven to Daimiel | 1,575.69 mi (2,535.83 km) |
| Sliven to Don Benito | 1,692.56 mi (2,723.91 km) |
| Sliven to Donostia | 1,424.48 mi (2,292.48 km) |
| Sliven to Dos Hermanas | 1,736.75 mi (2,795.02 km) |
| Sliven to Durango | 1,458.37 mi (2,347.01 km) |
| Sliven to Ecija | 1,687.60 mi (2,715.93 km) |
| Sliven to Ejea de los Caballeros | 1,395.80 mi (2,246.32 km) |
| Sliven to El Alamo | 1,571.05 mi (2,528.36 km) |
| Sliven to El Arahal | 1,718.30 mi (2,765.33 km) |
| Sliven to El Astillero | 1,515.09 mi (2,438.31 km) |
