| Denison to Oerlinghausen | 4,999.34 mi (8,045.67 km) |
| Denison to Oestrich-Winkel | 5,048.40 mi (8,124.62 km) |
| Denison to Offenburg | 5,103.46 mi (8,213.23 km) |
| Denison to Oftersheim | 5,094.02 mi (8,198.03 km) |
| Denison to Ohrdruf | 5,117.04 mi (8,235.08 km) |
| Denison to Ohringen | 5,134.90 mi (8,263.82 km) |
| Denison to Olbernhau | 5,216.29 mi (8,394.81 km) |
| Denison to Olching | 5,242.32 mi (8,436.71 km) |
| Denison to Oldenburg | 4,939.73 mi (7,949.73 km) |
| Denison to Oldenburg in Holstein | 4,988.14 mi (8,027.64 km) |
| Denison to Olfen | 4,962.25 mi (7,985.98 km) |
| Denison to Olpe | 5,004.42 mi (8,053.83 km) |
| Denison to Olsberg | 5,015.75 mi (8,072.08 km) |
| Denison to Oranienburg | 5,128.36 mi (8,253.29 km) |
| Denison to Ortenberg | 5,074.13 mi (8,166.02 km) |
