| Hertford to Cuenca | 816.46 mi (1,313.97 km) |
| Hertford to Cuevas del Almanzora | 1,005.40 mi (1,618.04 km) |
| Hertford to Cullera | 872.88 mi (1,404.76 km) |
| Hertford to Culleredo | 703.19 mi (1,131.67 km) |
| Hertford to Cunit | 736.78 mi (1,185.73 km) |
| Hertford to Daganzo de Arriba | 793.94 mi (1,277.72 km) |
| Hertford to Daimiel | 894.73 mi (1,439.92 km) |
| Hertford to Don Benito | 929.91 mi (1,496.55 km) |
| Hertford to Donostia | 592.30 mi (953.22 km) |
| Hertford to Dos Hermanas | 1,042.40 mi (1,677.57 km) |
| Hertford to Durango | 607.81 mi (978.18 km) |
| Hertford to Ecija | 1,015.12 mi (1,633.68 km) |
| Hertford to Ejea de los Caballeros | 669.80 mi (1,077.94 km) |
| Hertford to El Alamo | 820.63 mi (1,320.67 km) |
| Hertford to El Arahal | 1,038.73 mi (1,671.67 km) |
