| Helensburgh to Cuenca | 1,108.28 mi (1,783.60 km) |
| Helensburgh to Cuevas del Almanzora | 1,300.04 mi (2,092.21 km) |
| Helensburgh to Cullera | 1,182.37 mi (1,902.84 km) |
| Helensburgh to Culleredo | 894.20 mi (1,439.07 km) |
| Helensburgh to Cunit | 1,063.31 mi (1,711.24 km) |
| Helensburgh to Daganzo de Arriba | 1,070.66 mi (1,723.07 km) |
| Helensburgh to Daimiel | 1,171.10 mi (1,884.70 km) |
| Helensburgh to Don Benito | 1,180.01 mi (1,899.05 km) |
| Helensburgh to Donostia | 885.67 mi (1,425.34 km) |
| Helensburgh to Dos Hermanas | 1,295.50 mi (2,084.91 km) |
| Helensburgh to Durango | 892.57 mi (1,436.45 km) |
| Helensburgh to Ecija | 1,277.18 mi (2,055.42 km) |
| Helensburgh to Ejea de los Caballeros | 972.90 mi (1,565.73 km) |
| Helensburgh to El Alamo | 1,091.22 mi (1,756.15 km) |
| Helensburgh to El Arahal | 1,296.05 mi (2,085.79 km) |
