| Airdrie to Oberkirch | 717.32 mi (1,154.41 km) |
| Airdrie to Obernburg am Main | 685.72 mi (1,103.56 km) |
| Airdrie to Obernkirchen | 585.08 mi (941.59 km) |
| Airdrie to Oberschleissheim | 841.00 mi (1,353.45 km) |
| Airdrie to Oberstdorf | 842.44 mi (1,355.78 km) |
| Airdrie to Obertraubling | 827.45 mi (1,331.66 km) |
| Airdrie to Obertshausen | 665.06 mi (1,070.31 km) |
| Airdrie to Oberursel | 650.30 mi (1,046.56 km) |
| Airdrie to Ochsenfurt | 725.22 mi (1,167.13 km) |
| Airdrie to Ochsenhausen | 798.01 mi (1,284.28 km) |
| Airdrie to Ochtrup | 518.01 mi (833.66 km) |
| Airdrie to Odenthal | 564.37 mi (908.26 km) |
| Airdrie to Oelde | 566.23 mi (911.25 km) |
| Airdrie to Oelsnitz | 765.06 mi (1,231.24 km) |
| Airdrie to Oer-Erkenschwick | 542.57 mi (873.19 km) |
