| Watford to Caño Martin Peña (Puerto Rico) | 4,188.49 mi (6,740.72 km) |
| Watford to Cañon City (Colorado) | 4,746.52 mi (7,638.79 km) |
| Watford to Canóvanas (Puerto Rico) | 4,185.36 mi (6,735.68 km) |
| Watford to Canton (Georgia) | 4,172.36 mi (6,714.77 km) |
| Watford to Canton (Illinois) | 4,086.23 mi (6,576.15 km) |
| Watford to Canton (Mississippi) | 4,476.96 mi (7,204.98 km) |
| Watford to Canton (Ohio) | 3,738.61 mi (6,016.70 km) |
| Watford to Canyon (Texas) | 4,810.39 mi (7,741.57 km) |
| Watford to Canyon Lake (California) | 5,414.21 mi (8,713.33 km) |
| Watford to Canyon Lake (Texas) | 4,941.20 mi (7,952.09 km) |
| Watford to Cape Coral (Florida) | 4,446.82 mi (7,156.47 km) |
| Watford to Cape Girardeau (Missouri) | 4,224.74 mi (6,799.06 km) |
| Watford to Carbondale (Illinois) | 4,191.66 mi (6,745.82 km) |
| Watford to Carlisle (Pennsylvania) | 3,599.34 mi (5,792.58 km) |
| Watford to Carlsbad (California) | 5,447.07 mi (8,766.21 km) |
