| Irthlingborough to Celbridge | 256.97 mi (413.55 km) |
| Irthlingborough to Clondalkin | 250.90 mi (403.79 km) |
| Irthlingborough to Clonmel | 299.51 mi (482.02 km) |
| Irthlingborough to Cobh | 327.64 mi (527.29 km) |
| Irthlingborough to Cork | 334.49 mi (538.31 km) |
| Irthlingborough to Donegal | 347.42 mi (559.12 km) |
| Irthlingborough to Douglas | 333.25 mi (536.32 km) |
| Irthlingborough to Drogheda | 257.05 mi (413.68 km) |
| Irthlingborough to Dublin | 246.02 mi (395.93 km) |
| Irthlingborough to Dun Dealgan | 266.52 mi (428.92 km) |
| Irthlingborough to Ennis | 352.88 mi (567.90 km) |
| Irthlingborough to Enniscorthy | 251.07 mi (404.06 km) |
| Irthlingborough to Finglas | 246.36 mi (396.47 km) |
| Irthlingborough to Galway | 358.19 mi (576.44 km) |
| Irthlingborough to Glanmire | 331.35 mi (533.25 km) |
