| Seclin to Anagni | 776.54 mi (1,249.72 km) |
| Seclin to Ancona | 686.38 mi (1,104.63 km) |
| Seclin to Andria | 904.65 mi (1,455.90 km) |
| Seclin to Angri | 875.68 mi (1,409.28 km) |
| Seclin to Anguillara Sabazia | 731.21 mi (1,176.76 km) |
| Seclin to Anzio | 778.17 mi (1,252.35 km) |
| Seclin to Anzola dell'Emilia | 562.34 mi (904.99 km) |
| Seclin to Aosta | 386.82 mi (622.53 km) |
| Seclin to Apricena | 846.70 mi (1,362.64 km) |
| Seclin to Aprilia | 770.90 mi (1,240.65 km) |
| Seclin to Aradeo | 1,023.85 mi (1,647.72 km) |
| Seclin to Aragona | 1,047.50 mi (1,685.79 km) |
| Seclin to Arco | 482.30 mi (776.19 km) |
| Seclin to Arcola | 548.11 mi (882.10 km) |
| Seclin to Arcore | 446.35 mi (718.33 km) |
