| London Colney to Ridgeland (Mississippi) | 4,492.39 mi (7,229.81 km) |
| London Colney to Ridgewood (New Jersey) | 3,442.08 mi (5,539.50 km) |
| London Colney to Rifle (Colorado) | 4,776.18 mi (7,686.52 km) |
| London Colney to Rincon (Georgia) | 4,136.77 mi (6,657.49 km) |
| London Colney to Ringwood (New Jersey) | 3,443.28 mi (5,541.42 km) |
| London Colney to Río Grande (Puerto Rico) | 4,186.92 mi (6,738.19 km) |
| London Colney to Rio Grande City (Texas) | 5,150.07 mi (8,288.24 km) |
| London Colney to Rio Linda (California) | 5,256.19 mi (8,459.02 km) |
| London Colney to Rio Rancho (New Mexico) | 4,967.42 mi (7,994.29 km) |
| London Colney to Rio Rico (Arizona) | 5,325.89 mi (8,571.20 km) |
| London Colney to Ripon (California) | 5,301.71 mi (8,532.27 km) |
| London Colney to River Edge (New Jersey) | 3,441.47 mi (5,538.51 km) |
| London Colney to River Falls (Wisconsin) | 3,979.15 mi (6,403.82 km) |
| London Colney to River Forest (Illinois) | 3,940.43 mi (6,341.51 km) |
| London Colney to River Grove (Illinois) | 3,939.76 mi (6,340.44 km) |
