| Millbrook to Oerlinghausen | 4,685.62 mi (7,540.78 km) |
| Millbrook to Oestrich-Winkel | 4,716.78 mi (7,590.93 km) |
| Millbrook to Offenburg | 4,759.50 mi (7,659.67 km) |
| Millbrook to Oftersheim | 4,759.07 mi (7,658.98 km) |
| Millbrook to Ohrdruf | 4,800.03 mi (7,724.90 km) |
| Millbrook to Ohringen | 4,801.30 mi (7,726.95 km) |
| Millbrook to Olbernhau | 4,905.97 mi (7,895.39 km) |
| Millbrook to Olching | 4,906.54 mi (7,896.32 km) |
| Millbrook to Oldenburg | 4,634.59 mi (7,458.65 km) |
| Millbrook to Oldenburg in Holstein | 4,700.09 mi (7,564.07 km) |
| Millbrook to Olfen | 4,642.92 mi (7,472.05 km) |
| Millbrook to Olpe | 4,680.56 mi (7,532.63 km) |
| Millbrook to Olsberg | 4,696.45 mi (7,558.20 km) |
| Millbrook to Oranienburg | 4,834.38 mi (7,780.18 km) |
| Millbrook to Ortenberg | 4,748.40 mi (7,641.81 km) |
