| Longford to Rockville (Maryland) | 3,310.84 mi (5,328.28 km) |
| Longford to Rockville Centre (New York) | 3,098.39 mi (4,986.38 km) |
| Longford to Rockwall (Texas) | 4,370.95 mi (7,034.36 km) |
| Longford to Rocky Mount (North Carolina) | 3,483.17 mi (5,605.62 km) |
| Longford to Rocky Point (New York) | 3,058.20 mi (4,921.69 km) |
| Longford to Rocky River (Ohio) | 3,387.48 mi (5,451.62 km) |
| Longford to Roessleville (New York) | 3,015.83 mi (4,853.50 km) |
| Longford to Rogers (Arkansas) | 4,109.86 mi (6,614.17 km) |
| Longford to Rogers (Minnesota) | 3,657.94 mi (5,886.89 km) |
| Longford to Rohnert Park (California) | 4,991.99 mi (8,033.82 km) |
| Longford to Rolla (Missouri) | 3,937.39 mi (6,336.62 km) |
| Longford to Rolling Meadows (Illinois) | 3,597.20 mi (5,789.14 km) |
| Longford to Roma (Texas) | 4,813.33 mi (7,746.30 km) |
| Longford to Rome (Georgia) | 3,862.03 mi (6,215.34 km) |
| Longford to Rome (New York) | 3,060.23 mi (4,924.97 km) |
