| Irthlingborough to Chantilly (Virginia) | 3,644.83 mi (5,865.79 km) |
| Irthlingborough to Chaparral (New Mexico) | 5,099.27 mi (8,206.48 km) |
| Irthlingborough to Chapel Hill (North Carolina) | 3,847.61 mi (6,192.13 km) |
| Irthlingborough to Charleston (Illinois) | 4,038.13 mi (6,498.74 km) |
| Irthlingborough to Charleston (South Carolina) | 4,035.76 mi (6,494.93 km) |
| Irthlingborough to Charleston (West Virginia) | 3,837.11 mi (6,175.23 km) |
| Irthlingborough to Charlotte (North Carolina) | 3,954.59 mi (6,364.29 km) |
| Irthlingborough to Charlottesville (Virginia) | 3,725.91 mi (5,996.28 km) |
| Irthlingborough to Chaska (Minnesota) | 3,982.66 mi (6,409.48 km) |
| Irthlingborough to Chatham (Illinois) | 4,086.62 mi (6,576.78 km) |
| Irthlingborough to Chattanooga (Tennessee) | 4,138.73 mi (6,660.64 km) |
| Irthlingborough to Cheat Lake (West Virginia) | 3,705.28 mi (5,963.06 km) |
| Irthlingborough to Chelsea (Alabama) | 4,279.96 mi (6,887.93 km) |
| Irthlingborough to Chelsea (Massachusetts) | 3,231.49 mi (5,200.57 km) |
| Irthlingborough to Cheney (Washington) | 4,605.80 mi (7,412.33 km) |
