| Irthlingborough to Robertsville (New Jersey) | 3,452.29 mi (5,555.92 km) |
| Irthlingborough to Robinson (Texas) | 4,786.46 mi (7,703.06 km) |
| Irthlingborough to Robstown (Texas) | 5,001.18 mi (8,048.62 km) |
| Irthlingborough to Rochester (Michigan) | 3,694.58 mi (5,945.86 km) |
| Irthlingborough to Rochester (Minnesota) | 3,980.54 mi (6,406.06 km) |
| Irthlingborough to Rochester (New Hampshire) | 3,191.39 mi (5,136.05 km) |
| Irthlingborough to Rochester (New York) | 3,460.06 mi (5,568.42 km) |
| Irthlingborough to Rochester Hills (Michigan) | 3,696.98 mi (5,949.72 km) |
| Irthlingborough to Rock Hill (South Carolina) | 3,975.31 mi (6,397.64 km) |
| Irthlingborough to Rock Island (Illinois) | 4,033.18 mi (6,490.77 km) |
| Irthlingborough to Rock Springs (Wyoming) | 4,677.07 mi (7,527.01 km) |
| Irthlingborough to Rockford (Illinois) | 3,938.98 mi (6,339.18 km) |
| Irthlingborough to Rockledge (Florida) | 4,291.37 mi (6,906.29 km) |
| Irthlingborough to Rocklin (California) | 5,204.48 mi (8,375.80 km) |
| Irthlingborough to Rockport (Texas) | 4,965.43 mi (7,991.08 km) |
