| Watford to Columbia (Illinois) | 4,194.29 mi (6,750.06 km) |
| Watford to Columbia (Maryland) | 3,630.05 mi (5,841.99 km) |
| Watford to Columbia (Missouri) | 4,251.09 mi (6,841.46 km) |
| Watford to Columbia (Pennsylvania) | 3,577.99 mi (5,758.21 km) |
| Watford to Columbia (South Carolina) | 4,036.01 mi (6,495.33 km) |
| Watford to Columbia (Tennessee) | 4,208.11 mi (6,772.30 km) |
| Watford to Columbia Heights (Minnesota) | 3,991.89 mi (6,424.33 km) |
| Watford to Columbine (Colorado) | 4,680.91 mi (7,533.20 km) |
| Watford to Columbus (Georgia) | 4,273.22 mi (6,877.08 km) |
| Watford to Columbus (Indiana) | 3,991.52 mi (6,423.73 km) |
| Watford to Columbus (Mississippi) | 4,366.57 mi (7,027.31 km) |
| Watford to Columbus (Nebraska) | 4,314.22 mi (6,943.07 km) |
| Watford to Columbus (Ohio) | 3,840.02 mi (6,179.92 km) |
| Watford to Commack (New York) | 3,411.93 mi (5,490.97 km) |
| Watford to Commerce (California) | 5,425.36 mi (8,731.28 km) |
