| Irthlingborough to Jeffersonville (Indiana) | 3,997.72 mi (6,433.71 km) |
| Irthlingborough to Jenison (Michigan) | 3,787.43 mi (6,095.29 km) |
| Irthlingborough to Jenks (Oklahoma) | 4,506.81 mi (7,253.00 km) |
| Irthlingborough to Jennings (Missouri) | 4,154.62 mi (6,686.21 km) |
| Irthlingborough to Jensen Beach (Florida) | 4,325.46 mi (6,961.16 km) |
| Irthlingborough to Jericho (New York) | 3,402.14 mi (5,475.21 km) |
| Irthlingborough to Jerome (Idaho) | 4,781.75 mi (7,695.49 km) |
| Irthlingborough to Jersey City (New Jersey) | 3,426.43 mi (5,514.31 km) |
| Irthlingborough to Jessup (Maryland) | 3,605.97 mi (5,803.24 km) |
| Irthlingborough to Johns Creek (Georgia) | 4,147.75 mi (6,675.15 km) |
| Irthlingborough to Johnson City (New York) | 3,440.47 mi (5,536.91 km) |
| Irthlingborough to Johnson City (Tennessee) | 3,962.43 mi (6,376.91 km) |
| Irthlingborough to Johnston (Iowa) | 4,137.97 mi (6,659.43 km) |
| Irthlingborough to Johnstown (Colorado) | 4,601.71 mi (7,405.73 km) |
| Irthlingborough to Johnstown (Pennsylvania) | 3,637.96 mi (5,854.73 km) |
