| Longford to Ridgeland (Mississippi) | 4,151.25 mi (6,680.79 km) |
| Longford to Ridgewood (New Jersey) | 3,103.30 mi (4,994.27 km) |
| Longford to Rifle (Colorado) | 4,440.40 mi (7,146.13 km) |
| Longford to Rincon (Georgia) | 3,801.39 mi (6,117.75 km) |
| Longford to Ringwood (New Jersey) | 3,104.28 mi (4,995.85 km) |
| Longford to Río Grande (Puerto Rico) | 3,906.33 mi (6,286.63 km) |
| Longford to Rio Grande City (Texas) | 4,808.04 mi (7,737.79 km) |
| Longford to Rio Linda (California) | 4,934.16 mi (7,940.77 km) |
| Longford to Rio Rancho (New Mexico) | 4,627.98 mi (7,448.02 km) |
| Longford to Rio Rico (Arizona) | 4,986.89 mi (8,025.63 km) |
| Longford to Ripon (California) | 4,978.15 mi (8,011.56 km) |
| Longford to River Edge (New Jersey) | 3,102.78 mi (4,993.44 km) |
| Longford to River Falls (Wisconsin) | 3,638.59 mi (5,855.75 km) |
| Longford to River Forest (Illinois) | 3,597.76 mi (5,790.03 km) |
| Longford to River Grove (Illinois) | 3,597.10 mi (5,788.97 km) |
