| Heiloo to Trim | 481.67 mi (775.17 km) |
| Heiloo to Tuam | 566.07 mi (911.01 km) |
| Heiloo to Tullamore | 510.22 mi (821.12 km) |
| Heiloo to Waterford | 499.07 mi (803.17 km) |
| Heiloo to Wexford | 470.24 mi (756.78 km) |
| Heiloo to Wicklow | 449.51 mi (723.41 km) |
| Heiloo to Abano Terme | 593.59 mi (955.28 km) |
| Heiloo to Abbiategrasso | 532.43 mi (856.86 km) |
| Heiloo to Acate | 1,174.94 mi (1,890.88 km) |
| Heiloo to Acerra | 923.59 mi (1,486.37 km) |
| Heiloo to Aci Castello | 1,154.58 mi (1,858.11 km) |
| Heiloo to Aci Catena | 1,151.48 mi (1,853.13 km) |
| Heiloo to Aci Sant'Antonio | 1,151.13 mi (1,852.57 km) |
| Heiloo to Acireale | 1,151.12 mi (1,852.54 km) |
| Heiloo to Acquaviva delle Fonti | 988.81 mi (1,591.33 km) |
