| Chickasha to Oerlinghausen | 4,978.92 mi (8,012.80 km) |
| Chickasha to Oestrich-Winkel | 5,031.95 mi (8,098.14 km) |
| Chickasha to Offenburg | 5,089.77 mi (8,191.19 km) |
| Chickasha to Oftersheim | 5,078.23 mi (8,172.62 km) |
| Chickasha to Ohrdruf | 5,097.06 mi (8,202.92 km) |
| Chickasha to Ohringen | 5,118.69 mi (8,237.73 km) |
| Chickasha to Olbernhau | 5,194.56 mi (8,359.83 km) |
| Chickasha to Olching | 5,226.36 mi (8,411.02 km) |
| Chickasha to Oldenburg | 4,917.54 mi (7,914.01 km) |
| Chickasha to Oldenburg in Holstein | 4,962.06 mi (7,985.67 km) |
| Chickasha to Olfen | 4,943.20 mi (7,955.31 km) |
| Chickasha to Olpe | 4,986.28 mi (8,024.65 km) |
| Chickasha to Olsberg | 4,996.55 mi (8,041.18 km) |
| Chickasha to Oranienburg | 5,103.21 mi (8,212.82 km) |
| Chickasha to Ortenberg | 5,056.25 mi (8,137.25 km) |
