| Northolt to Amelia | 862.93 mi (1,388.76 km) |
| Northolt to Anagni | 930.21 mi (1,497.02 km) |
| Northolt to Ancona | 845.50 mi (1,360.70 km) |
| Northolt to Andria | 1,063.50 mi (1,711.54 km) |
| Northolt to Angri | 1,030.34 mi (1,658.17 km) |
| Northolt to Anguillara Sabazia | 883.29 mi (1,421.52 km) |
| Northolt to Anzio | 929.52 mi (1,495.91 km) |
| Northolt to Anzola dell'Emilia | 719.07 mi (1,157.24 km) |
| Northolt to Aosta | 532.80 mi (857.46 km) |
| Northolt to Apricena | 1,005.20 mi (1,617.72 km) |
| Northolt to Aprilia | 922.70 mi (1,484.94 km) |
| Northolt to Aradeo | 1,183.47 mi (1,904.60 km) |
| Northolt to Aragona | 1,191.71 mi (1,917.87 km) |
| Northolt to Arco | 642.51 mi (1,034.01 km) |
| Northolt to Arcola | 699.03 mi (1,124.98 km) |
