| Nieuwpoort to Odessa (Texas) | 5,126.61 mi (8,250.49 km) |
| Nieuwpoort to Ogden (Utah) | 4,947.25 mi (7,961.83 km) |
| Nieuwpoort to Oildale (California) | 5,494.42 mi (8,842.42 km) |
| Nieuwpoort to Ojus (Florida) | 4,544.42 mi (7,313.54 km) |
| Nieuwpoort to Okemos (Michigan) | 3,909.25 mi (6,291.34 km) |
| Nieuwpoort to Oklahoma City (Oklahoma) | 4,758.05 mi (7,657.33 km) |
| Nieuwpoort to Okmulgee (Oklahoma) | 4,694.12 mi (7,554.46 km) |
| Nieuwpoort to Olathe (Kansas) | 4,483.83 mi (7,216.03 km) |
| Nieuwpoort to Old Jamestown (Missouri) | 4,315.89 mi (6,945.75 km) |
| Nieuwpoort to Oldsmar (Florida) | 4,544.72 mi (7,314.03 km) |
| Nieuwpoort to Olean (New York) | 3,704.90 mi (5,962.45 km) |
| Nieuwpoort to Olive Branch (Mississippi) | 4,490.52 mi (7,226.79 km) |
| Nieuwpoort to Olivehurst (California) | 5,356.23 mi (8,620.02 km) |
| Nieuwpoort to Olney (Maryland) | 3,781.36 mi (6,085.50 km) |
| Nieuwpoort to Olympia (Washington) | 4,927.28 mi (7,929.69 km) |
