| Oakland to Oerlinghausen | 5,566.33 mi (8,958.14 km) |
| Oakland to Oestrich-Winkel | 5,656.63 mi (9,103.47 km) |
| Oakland to Offenburg | 5,738.83 mi (9,235.75 km) |
| Oakland to Oftersheim | 5,707.06 mi (9,184.63 km) |
| Oakland to Ohrdruf | 5,682.53 mi (9,145.15 km) |
| Oakland to Ohringen | 5,741.20 mi (9,239.57 km) |
| Oakland to Olbernhau | 5,756.56 mi (9,264.28 km) |
| Oakland to Olching | 5,845.69 mi (9,407.73 km) |
| Oakland to Oldenburg | 5,490.22 mi (8,835.65 km) |
| Oakland to Oldenburg in Holstein | 5,491.71 mi (8,838.06 km) |
| Oakland to Olfen | 5,546.48 mi (8,926.19 km) |
| Oakland to Olpe | 5,596.55 mi (9,006.77 km) |
| Oakland to Olsberg | 5,595.45 mi (9,005.01 km) |
| Oakland to Oranienburg | 5,634.62 mi (9,068.05 km) |
| Oakland to Ortenberg | 5,665.29 mi (9,117.40 km) |
