| Irthlingborough to Romeoville (Illinois) | 3,932.59 mi (6,328.89 km) |
| Irthlingborough to Romulus (Michigan) | 3,725.10 mi (5,994.97 km) |
| Irthlingborough to Ronkonkoma (New York) | 3,384.59 mi (5,446.97 km) |
| Irthlingborough to Roosevelt (New York) | 3,408.58 mi (5,485.58 km) |
| Irthlingborough to Rosamond (California) | 5,339.85 mi (8,593.66 km) |
| Irthlingborough to Rosaryville (Maryland) | 3,625.40 mi (5,834.52 km) |
| Irthlingborough to Roscoe (Illinois) | 3,929.06 mi (6,323.21 km) |
| Irthlingborough to Rose Hill (Virginia) | 3,635.84 mi (5,851.33 km) |
| Irthlingborough to Roseburg (Oregon) | 5,007.29 mi (8,058.46 km) |
| Irthlingborough to Rosedale (California) | 5,340.68 mi (8,594.99 km) |
| Irthlingborough to Rosedale (Maryland) | 3,587.05 mi (5,772.80 km) |
| Irthlingborough to Roselle (Illinois) | 3,915.58 mi (6,301.52 km) |
| Irthlingborough to Roselle (New Jersey) | 3,437.04 mi (5,531.38 km) |
| Irthlingborough to Roselle Park (New Jersey) | 3,436.75 mi (5,530.92 km) |
| Irthlingborough to Rosemead (California) | 5,381.44 mi (8,660.60 km) |
