| Vermillion to Oerlinghausen | 4,531.13 mi (7,292.14 km) |
| Vermillion to Oestrich-Winkel | 4,594.55 mi (7,394.22 km) |
| Vermillion to Offenburg | 4,659.73 mi (7,499.12 km) |
| Vermillion to Oftersheim | 4,642.42 mi (7,471.25 km) |
| Vermillion to Ohrdruf | 4,649.91 mi (7,483.30 km) |
| Vermillion to Ohringen | 4,681.54 mi (7,534.21 km) |
| Vermillion to Olbernhau | 4,742.43 mi (7,632.20 km) |
| Vermillion to Olching | 4,789.38 mi (7,707.76 km) |
| Vermillion to Oldenburg | 4,465.41 mi (7,186.39 km) |
| Vermillion to Oldenburg in Holstein | 4,499.98 mi (7,242.02 km) |
| Vermillion to Olfen | 4,499.19 mi (7,240.74 km) |
| Vermillion to Olpe | 4,544.55 mi (7,313.74 km) |
| Vermillion to Olsberg | 4,551.91 mi (7,325.59 km) |
| Vermillion to Oranienburg | 4,642.87 mi (7,471.98 km) |
| Vermillion to Ortenberg | 4,614.87 mi (7,426.91 km) |
