| Federal Way to Oerlinghausen | 4,992.02 mi (8,033.89 km) |
| Federal Way to Oestrich-Winkel | 5,090.98 mi (8,193.14 km) |
| Federal Way to Offenburg | 5,178.73 mi (8,334.35 km) |
| Federal Way to Oftersheim | 5,141.70 mi (8,274.77 km) |
| Federal Way to Ohrdruf | 5,105.79 mi (8,216.97 km) |
| Federal Way to Ohringen | 5,173.48 mi (8,325.91 km) |
| Federal Way to Olbernhau | 5,172.64 mi (8,324.56 km) |
| Federal Way to Olching | 5,275.33 mi (8,489.82 km) |
| Federal Way to Oldenburg | 4,913.32 mi (7,907.23 km) |
| Federal Way to Oldenburg in Holstein | 4,904.02 mi (7,892.26 km) |
| Federal Way to Olfen | 4,976.79 mi (8,009.37 km) |
| Federal Way to Olpe | 5,027.92 mi (8,091.65 km) |
| Federal Way to Olsberg | 5,023.74 mi (8,084.92 km) |
| Federal Way to Oranienburg | 5,045.15 mi (8,119.38 km) |
| Federal Way to Ortenberg | 5,095.14 mi (8,199.84 km) |
