| Muskogee to Oerlinghausen | 4,849.52 mi (7,804.55 km) |
| Muskogee to Oestrich-Winkel | 4,899.78 mi (7,885.43 km) |
| Muskogee to Offenburg | 4,955.76 mi (7,975.53 km) |
| Muskogee to Oftersheim | 4,945.61 mi (7,959.19 km) |
| Muskogee to Ohrdruf | 4,967.35 mi (7,994.18 km) |
| Muskogee to Ohringen | 4,986.36 mi (8,024.77 km) |
| Muskogee to Olbernhau | 5,066.14 mi (8,153.16 km) |
| Muskogee to Olching | 5,093.88 mi (8,197.80 km) |
| Muskogee to Oldenburg | 4,789.43 mi (7,707.85 km) |
| Muskogee to Oldenburg in Holstein | 4,836.93 mi (7,784.28 km) |
| Muskogee to Olfen | 4,812.82 mi (7,745.49 km) |
| Muskogee to Olpe | 4,855.26 mi (7,813.79 km) |
| Muskogee to Olsberg | 4,866.28 mi (7,831.53 km) |
| Muskogee to Oranienburg | 4,977.36 mi (8,010.28 km) |
| Muskogee to Ortenberg | 4,925.06 mi (7,926.11 km) |
