| Oneonta to Oerlinghausen | 3,762.70 mi (6,055.49 km) |
| Oneonta to Oestrich-Winkel | 3,796.44 mi (6,109.79 km) |
| Oneonta to Offenburg | 3,841.84 mi (6,182.84 km) |
| Oneonta to Oftersheim | 3,839.42 mi (6,178.96 km) |
| Oneonta to Ohrdruf | 3,877.58 mi (6,240.36 km) |
| Oneonta to Ohringen | 3,881.45 mi (6,246.59 km) |
| Oneonta to Olbernhau | 3,982.89 mi (6,409.85 km) |
| Oneonta to Olching | 3,987.27 mi (6,416.89 km) |
| Oneonta to Oldenburg | 3,710.92 mi (5,972.15 km) |
| Oneonta to Oldenburg in Holstein | 3,775.92 mi (6,076.76 km) |
| Oneonta to Olfen | 3,720.60 mi (5,987.73 km) |
| Oneonta to Olpe | 3,758.90 mi (6,049.36 km) |
| Oneonta to Olsberg | 3,774.18 mi (6,073.96 km) |
| Oneonta to Oranienburg | 3,910.29 mi (6,293.01 km) |
| Oneonta to Ortenberg | 3,827.10 mi (6,159.12 km) |
