| London Colney to River Ridge (Louisiana) | 4,620.38 mi (7,435.78 km) |
| London Colney to Riverbank (California) | 5,297.00 mi (8,524.70 km) |
| London Colney to Riverdale (Georgia) | 4,204.79 mi (6,766.95 km) |
| London Colney to Riverdale (Illinois) | 3,945.19 mi (6,349.18 km) |
| London Colney to Riverside (California) | 5,404.16 mi (8,697.16 km) |
| London Colney to Riverside (Ohio) | 3,895.98 mi (6,269.98 km) |
| London Colney to Riverton (Utah) | 4,861.00 mi (7,823.02 km) |
| London Colney to Riverton (Wyoming) | 4,610.55 mi (7,419.96 km) |
| London Colney to Riverview (Florida) | 4,403.17 mi (7,086.22 km) |
| London Colney to Riverview (Michigan) | 3,750.29 mi (6,035.52 km) |
| London Colney to Riviera Beach (Florida) | 4,362.13 mi (7,020.17 km) |
| London Colney to Riviera Beach (Maryland) | 3,620.56 mi (5,826.72 km) |
| London Colney to Roanoke (Virginia) | 3,846.31 mi (6,190.03 km) |
| London Colney to Roanoke Rapids (North Carolina) | 3,790.85 mi (6,100.78 km) |
| London Colney to Robbinsdale (Minnesota) | 3,996.73 mi (6,432.11 km) |
