| Harrow to Aulnay-sous-Bois | 221.55 mi (356.55 km) |
| Harrow to Aulnoye-Aymeries | 205.61 mi (330.90 km) |
| Harrow to Auray | 295.11 mi (474.94 km) |
| Harrow to Aurillac | 477.43 mi (768.35 km) |
| Harrow to Auriol | 631.97 mi (1,017.06 km) |
| Harrow to Auterive | 575.14 mi (925.60 km) |
| Harrow to Autun | 382.32 mi (615.29 km) |
| Harrow to Auxerre | 314.53 mi (506.18 km) |
| Harrow to Avignon | 578.84 mi (931.56 km) |
| Harrow to Avion | 160.26 mi (257.92 km) |
| Harrow to Avon | 258.26 mi (415.63 km) |
| Harrow to Avranches | 205.25 mi (330.31 km) |
| Harrow to Avrille | 281.88 mi (453.65 km) |
| Harrow to Aytre | 378.13 mi (608.54 km) |
| Harrow to Bagneux | 225.53 mi (362.96 km) |
