| Otsego to Oerlinghausen | 4,293.72 mi (6,910.07 km) |
| Otsego to Oestrich-Winkel | 4,357.01 mi (7,011.93 km) |
| Otsego to Offenburg | 4,422.26 mi (7,116.94 km) |
| Otsego to Oftersheim | 4,404.88 mi (7,088.97 km) |
| Otsego to Ohrdruf | 4,412.49 mi (7,101.22 km) |
| Otsego to Ohringen | 4,443.99 mi (7,151.92 km) |
| Otsego to Olbernhau | 4,505.20 mi (7,250.41 km) |
| Otsego to Olching | 4,551.84 mi (7,325.47 km) |
| Otsego to Oldenburg | 4,228.15 mi (6,804.54 km) |
| Otsego to Oldenburg in Holstein | 4,263.30 mi (6,861.12 km) |
| Otsego to Olfen | 4,261.69 mi (6,858.53 km) |
| Otsego to Olpe | 4,307.02 mi (6,931.49 km) |
| Otsego to Olsberg | 4,314.43 mi (6,943.41 km) |
| Otsego to Oranienburg | 4,406.09 mi (7,090.92 km) |
| Otsego to Ortenberg | 4,377.34 mi (7,044.65 km) |
