| Huber Heights to Oerlinghausen | 4,227.96 mi (6,804.24 km) |
| Huber Heights to Oestrich-Winkel | 4,268.98 mi (6,870.25 km) |
| Huber Heights to Offenburg | 4,319.04 mi (6,950.82 km) |
| Huber Heights to Oftersheim | 4,313.27 mi (6,941.54 km) |
| Huber Heights to Ohrdruf | 4,344.36 mi (6,991.57 km) |
| Huber Heights to Ohringen | 4,354.81 mi (7,008.39 km) |
| Huber Heights to Olbernhau | 4,447.05 mi (7,156.83 km) |
| Huber Heights to Olching | 4,461.53 mi (7,180.15 km) |
| Huber Heights to Oldenburg | 4,172.40 mi (6,714.83 km) |
| Huber Heights to Oldenburg in Holstein | 4,229.84 mi (6,807.27 km) |
| Huber Heights to Olfen | 4,188.13 mi (6,740.15 km) |
| Huber Heights to Olpe | 4,228.32 mi (6,804.83 km) |
| Huber Heights to Olsberg | 4,241.77 mi (6,826.47 km) |
| Huber Heights to Oranienburg | 4,367.22 mi (7,028.36 km) |
| Huber Heights to Ortenberg | 4,297.35 mi (6,915.91 km) |
