| Airdrie to Oerlinghausen | 579.55 mi (932.69 km) |
| Airdrie to Oestrich-Winkel | 641.06 mi (1,031.68 km) |
| Airdrie to Offenburg | 716.38 mi (1,152.90 km) |
| Airdrie to Oftersheim | 690.18 mi (1,110.74 km) |
| Airdrie to Ohrdruf | 697.40 mi (1,122.36 km) |
| Airdrie to Ohringen | 727.77 mi (1,171.23 km) |
| Airdrie to Olbernhau | 797.48 mi (1,283.42 km) |
| Airdrie to Olching | 835.25 mi (1,344.21 km) |
| Airdrie to Oldenburg | 523.12 mi (841.88 km) |
| Airdrie to Oldenburg in Holstein | 596.44 mi (959.88 km) |
| Airdrie to Olfen | 544.07 mi (875.60 km) |
| Airdrie to Olpe | 589.01 mi (947.93 km) |
| Airdrie to Olsberg | 597.18 mi (961.07 km) |
| Airdrie to Oranienburg | 724.25 mi (1,165.57 km) |
| Airdrie to Ortenberg | 659.34 mi (1,061.10 km) |
