| McAlester to Oerlinghausen | 4,908.12 mi (7,898.85 km) |
| McAlester to Oestrich-Winkel | 4,957.72 mi (7,978.68 km) |
| McAlester to Offenburg | 5,013.23 mi (8,068.01 km) |
| McAlester to Oftersheim | 5,003.44 mi (8,052.26 km) |
| McAlester to Ohrdruf | 5,025.87 mi (8,088.36 km) |
| McAlester to Ohringen | 5,044.26 mi (8,117.95 km) |
| McAlester to Olbernhau | 5,124.92 mi (8,247.76 km) |
| McAlester to Olching | 5,151.73 mi (8,290.91 km) |
| McAlester to Oldenburg | 4,848.29 mi (7,802.57 km) |
| McAlester to Oldenburg in Holstein | 4,896.32 mi (7,879.86 km) |
| McAlester to Olfen | 4,871.20 mi (7,839.44 km) |
| McAlester to Olpe | 4,913.49 mi (7,907.50 km) |
| McAlester to Olsberg | 4,924.68 mi (7,925.51 km) |
| McAlester to Oranienburg | 5,036.62 mi (8,105.66 km) |
| McAlester to Ortenberg | 4,983.24 mi (8,019.75 km) |
