| Teays Valley to Oerlinghausen | 4,214.79 mi (6,783.05 km) |
| Teays Valley to Oestrich-Winkel | 4,249.98 mi (6,839.68 km) |
| Teays Valley to Offenburg | 4,295.96 mi (6,913.68 km) |
| Teays Valley to Oftersheim | 4,293.16 mi (6,909.17 km) |
| Teays Valley to Ohrdruf | 4,330.04 mi (6,968.53 km) |
| Teays Valley to Ohringen | 4,335.12 mi (6,976.71 km) |
| Teays Valley to Olbernhau | 4,434.78 mi (7,137.09 km) |
| Teays Valley to Olching | 4,441.08 mi (7,147.23 km) |
| Teays Valley to Oldenburg | 4,162.04 mi (6,698.15 km) |
| Teays Valley to Oldenburg in Holstein | 4,224.82 mi (6,799.18 km) |
| Teays Valley to Olfen | 4,173.19 mi (6,716.10 km) |
| Teays Valley to Olpe | 4,211.88 mi (6,778.37 km) |
| Teays Valley to Olsberg | 4,226.79 mi (6,802.37 km) |
| Teays Valley to Oranienburg | 4,360.18 mi (7,017.04 km) |
| Teays Valley to Ortenberg | 4,280.25 mi (6,888.40 km) |
