| Spearfish to Oerlinghausen | 4,658.52 mi (7,497.17 km) |
| Spearfish to Oestrich-Winkel | 4,733.16 mi (7,617.28 km) |
| Spearfish to Offenburg | 4,805.69 mi (7,734.00 km) |
| Spearfish to Oftersheim | 4,782.36 mi (7,696.47 km) |
| Spearfish to Ohrdruf | 4,777.09 mi (7,687.98 km) |
| Spearfish to Ohringen | 4,819.71 mi (7,756.58 km) |
| Spearfish to Olbernhau | 4,863.00 mi (7,826.25 km) |
| Spearfish to Olching | 4,926.88 mi (7,929.05 km) |
| Spearfish to Oldenburg | 4,588.23 mi (7,384.05 km) |
| Spearfish to Oldenburg in Holstein | 4,610.16 mi (7,419.34 km) |
| Spearfish to Olfen | 4,631.20 mi (7,453.19 km) |
| Spearfish to Olpe | 4,678.75 mi (7,529.73 km) |
| Spearfish to Olsberg | 4,682.77 mi (7,536.19 km) |
| Spearfish to Oranienburg | 4,754.13 mi (7,651.02 km) |
| Spearfish to Ortenberg | 4,748.90 mi (7,642.61 km) |
