| Highland City to Oerlinghausen | 4,742.84 mi (7,632.87 km) |
| Highland City to Oestrich-Winkel | 4,758.77 mi (7,658.50 km) |
| Highland City to Offenburg | 4,790.44 mi (7,709.47 km) |
| Highland City to Oftersheim | 4,797.68 mi (7,721.13 km) |
| Highland City to Ohrdruf | 4,853.00 mi (7,810.15 km) |
| Highland City to Ohringen | 4,840.49 mi (7,790.02 km) |
| Highland City to Olbernhau | 4,962.98 mi (7,987.14 km) |
| Highland City to Olching | 4,942.49 mi (7,954.17 km) |
| Highland City to Oldenburg | 4,699.48 mi (7,563.07 km) |
| Highland City to Oldenburg in Holstein | 4,777.64 mi (7,688.88 km) |
| Highland City to Olfen | 4,696.13 mi (7,557.69 km) |
| Highland City to Olpe | 4,729.52 mi (7,611.43 km) |
| Highland City to Olsberg | 4,748.95 mi (7,642.69 km) |
| Highland City to Oranienburg | 4,905.44 mi (7,894.54 km) |
| Highland City to Ortenberg | 4,794.88 mi (7,716.62 km) |
