| Aire-sur-la-Lys to Oria | 1,013.09 mi (1,630.41 km) |
| Aire-sur-la-Lys to Oristano | 799.70 mi (1,287.00 km) |
| Aire-sur-la-Lys to Orta Nova | 904.14 mi (1,455.06 km) |
| Aire-sur-la-Lys to Orte | 736.65 mi (1,185.52 km) |
| Aire-sur-la-Lys to Ortona | 806.76 mi (1,298.35 km) |
| Aire-sur-la-Lys to Orvieto | 713.97 mi (1,149.02 km) |
| Aire-sur-la-Lys to Orzinuovi | 501.83 mi (807.61 km) |
| Aire-sur-la-Lys to Osimo | 717.41 mi (1,154.56 km) |
| Aire-sur-la-Lys to Ospitaletto | 498.35 mi (802.01 km) |
| Aire-sur-la-Lys to Ostuni | 999.27 mi (1,608.17 km) |
| Aire-sur-la-Lys to Ottaviano | 890.31 mi (1,432.81 km) |
| Aire-sur-la-Lys to Ovada | 506.04 mi (814.40 km) |
| Aire-sur-la-Lys to Ozieri | 763.77 mi (1,229.17 km) |
| Aire-sur-la-Lys to Paceco | 1,006.12 mi (1,619.19 km) |
| Aire-sur-la-Lys to Pachino | 1,148.92 mi (1,849.01 km) |
