| Airdrie to Orbetello | 1,148.40 mi (1,848.18 km) |
| Airdrie to Oria | 1,443.26 mi (2,322.70 km) |
| Airdrie to Oristano | 1,242.35 mi (1,999.37 km) |
| Airdrie to Orta Nova | 1,338.59 mi (2,154.25 km) |
| Airdrie to Orte | 1,178.70 mi (1,896.93 km) |
| Airdrie to Ortona | 1,242.22 mi (1,999.16 km) |
| Airdrie to Orvieto | 1,156.12 mi (1,860.59 km) |
| Airdrie to Orzinuovi | 942.03 mi (1,516.05 km) |
| Airdrie to Osimo | 1,151.53 mi (1,853.21 km) |
| Airdrie to Ospitaletto | 937.18 mi (1,508.24 km) |
| Airdrie to Ostuni | 1,428.62 mi (2,299.14 km) |
| Airdrie to Ottaviano | 1,330.60 mi (2,141.39 km) |
| Airdrie to Ovada | 951.94 mi (1,532.01 km) |
| Airdrie to Ozieri | 1,208.35 mi (1,944.66 km) |
| Airdrie to Paceco | 1,452.54 mi (2,337.63 km) |
