| Oostakker to Odessa (Texas) | 5,164.66 mi (8,311.72 km) |
| Oostakker to Ogden (Utah) | 4,979.64 mi (8,013.95 km) |
| Oostakker to Oildale (California) | 5,526.12 mi (8,893.43 km) |
| Oostakker to Ojus (Florida) | 4,587.76 mi (7,383.29 km) |
| Oostakker to Okemos (Michigan) | 3,948.48 mi (6,354.47 km) |
| Oostakker to Oklahoma City (Oklahoma) | 4,796.40 mi (7,719.07 km) |
| Oostakker to Okmulgee (Oklahoma) | 4,732.81 mi (7,616.72 km) |
| Oostakker to Olathe (Kansas) | 4,521.90 mi (7,277.29 km) |
| Oostakker to Old Jamestown (Missouri) | 4,355.01 mi (7,008.72 km) |
| Oostakker to Oldsmar (Florida) | 4,587.51 mi (7,382.88 km) |
| Oostakker to Olean (New York) | 3,745.46 mi (6,027.73 km) |
| Oostakker to Olive Branch (Mississippi) | 4,530.75 mi (7,291.54 km) |
| Oostakker to Olivehurst (California) | 5,385.87 mi (8,667.72 km) |
| Oostakker to Olney (Maryland) | 3,822.92 mi (6,152.39 km) |
| Oostakker to Olympia (Washington) | 4,953.81 mi (7,972.38 km) |
