| Harrow on the Hill to Arpajon | 235.23 mi (378.56 km) |
| Harrow on the Hill to Arques | 127.79 mi (205.65 km) |
| Harrow on the Hill to Arras | 161.59 mi (260.05 km) |
| Harrow on the Hill to Artigues-pres-Bordeaux | 463.32 mi (745.65 km) |
| Harrow on the Hill to Athis-Mons | 231.31 mi (372.26 km) |
| Harrow on the Hill to Aubagne | 634.33 mi (1,020.86 km) |
| Harrow on the Hill to Aubenas | 526.81 mi (847.82 km) |
| Harrow on the Hill to Aubergenville | 204.40 mi (328.95 km) |
| Harrow on the Hill to Aubervilliers | 219.03 mi (352.49 km) |
| Harrow on the Hill to Aubiere | 431.28 mi (694.07 km) |
| Harrow on the Hill to Aucamville | 551.72 mi (887.91 km) |
| Harrow on the Hill to Auch | 548.81 mi (883.22 km) |
| Harrow on the Hill to Auchel | 142.12 mi (228.72 km) |
| Harrow on the Hill to Audenge | 476.52 mi (766.89 km) |
| Harrow on the Hill to Audincourt | 427.49 mi (687.99 km) |
