| Altus to Oerlinghausen | 5,047.34 mi (8,122.90 km) |
| Altus to Oestrich-Winkel | 5,101.82 mi (8,210.59 km) |
| Altus to Offenburg | 5,160.60 mi (8,305.18 km) |
| Altus to Oftersheim | 5,148.33 mi (8,285.43 km) |
| Altus to Ohrdruf | 5,165.61 mi (8,313.25 km) |
| Altus to Ohringen | 5,188.63 mi (8,350.29 km) |
| Altus to Olbernhau | 5,262.41 mi (8,469.03 km) |
| Altus to Olching | 5,296.37 mi (8,523.68 km) |
| Altus to Oldenburg | 4,985.28 mi (8,023.04 km) |
| Altus to Oldenburg in Holstein | 5,028.23 mi (8,092.15 km) |
| Altus to Olfen | 5,012.14 mi (8,066.26 km) |
| Altus to Olpe | 5,055.56 mi (8,136.13 km) |
| Altus to Olsberg | 5,065.43 mi (8,152.02 km) |
| Altus to Oranienburg | 5,169.72 mi (8,319.86 km) |
| Altus to Ortenberg | 5,125.60 mi (8,248.85 km) |
