| Boulogne-sur-Mer to Cuevas del Almanzora | 943.39 mi (1,518.23 km) |
| Boulogne-sur-Mer to Cullera | 804.02 mi (1,293.94 km) |
| Boulogne-sur-Mer to Culleredo | 696.12 mi (1,120.30 km) |
| Boulogne-sur-Mer to Cunit | 658.38 mi (1,059.56 km) |
| Boulogne-sur-Mer to Daganzo de Arriba | 744.58 mi (1,198.28 km) |
| Boulogne-sur-Mer to Daimiel | 843.67 mi (1,357.75 km) |
| Boulogne-sur-Mer to Don Benito | 890.92 mi (1,433.80 km) |
| Boulogne-sur-Mer to Donostia | 538.85 mi (867.19 km) |
| Boulogne-sur-Mer to Dos Hermanas | 1,000.22 mi (1,609.69 km) |
| Boulogne-sur-Mer to Durango | 559.00 mi (899.62 km) |
| Boulogne-sur-Mer to Ecija | 969.20 mi (1,559.77 km) |
| Boulogne-sur-Mer to Ejea de los Caballeros | 608.18 mi (978.77 km) |
| Boulogne-sur-Mer to El Alamo | 773.86 mi (1,245.41 km) |
| Boulogne-sur-Mer to El Arahal | 994.67 mi (1,600.77 km) |
| Boulogne-sur-Mer to El Astillero | 566.67 mi (911.96 km) |
