| London Colney to Roy (Utah) | 4,827.99 mi (7,769.90 km) |
| London Colney to Royal Kunia (Hawaii) | 7,207.13 mi (11,598.75 km) |
| London Colney to Royal Oak (Michigan) | 3,733.58 mi (6,008.61 km) |
| London Colney to Royal Palm Beach (Florida) | 4,372.37 mi (7,036.64 km) |
| London Colney to Royse City (Texas) | 4,705.95 mi (7,573.49 km) |
| London Colney to Ruskin (Florida) | 4,413.99 mi (7,103.63 km) |
| London Colney to Russellville (Alabama) | 4,292.05 mi (6,907.39 km) |
| London Colney to Russellville (Arkansas) | 4,466.01 mi (7,187.35 km) |
| London Colney to Ruston (Louisiana) | 4,585.41 mi (7,379.50 km) |
| London Colney to Rutherford (New Jersey) | 3,448.82 mi (5,550.34 km) |
| London Colney to Rutland (Vermont) | 3,285.01 mi (5,286.71 km) |
| London Colney to Sabana Grande (Puerto Rico) | 4,250.30 mi (6,840.20 km) |
| London Colney to Sachse (Texas) | 4,716.20 mi (7,589.99 km) |
| London Colney to Saco (Maine) | 3,186.51 mi (5,128.19 km) |
| London Colney to Sacramento (California) | 5,263.91 mi (8,471.45 km) |
