| Kingsport to Oerlinghausen | 4,333.76 mi (6,974.52 km) |
| Kingsport to Oestrich-Winkel | 4,366.22 mi (7,026.76 km) |
| Kingsport to Offenburg | 4,410.16 mi (7,097.47 km) |
| Kingsport to Oftersheim | 4,408.84 mi (7,095.34 km) |
| Kingsport to Ohrdruf | 4,448.42 mi (7,159.05 km) |
| Kingsport to Ohringen | 4,450.98 mi (7,163.15 km) |
| Kingsport to Olbernhau | 4,554.02 mi (7,328.99 km) |
| Kingsport to Olching | 4,556.49 mi (7,332.97 km) |
| Kingsport to Oldenburg | 4,282.28 mi (6,891.66 km) |
| Kingsport to Oldenburg in Holstein | 4,347.26 mi (6,996.24 km) |
| Kingsport to Olfen | 4,291.38 mi (6,906.31 km) |
| Kingsport to Olpe | 4,329.36 mi (6,967.43 km) |
| Kingsport to Olsberg | 4,344.94 mi (6,992.50 km) |
| Kingsport to Oranienburg | 4,481.72 mi (7,212.64 km) |
| Kingsport to Ortenberg | 4,397.38 mi (7,076.90 km) |
