| Nieuwpoort to Orangevale (California) | 5,369.53 mi (8,641.42 km) |
| Nieuwpoort to Orchards (Washington) | 4,996.68 mi (8,041.38 km) |
| Nieuwpoort to Orcutt (California) | 5,569.32 mi (8,962.96 km) |
| Nieuwpoort to Oregon (Ohio) | 3,919.68 mi (6,308.12 km) |
| Nieuwpoort to Oregon (Wisconsin) | 4,085.98 mi (6,575.75 km) |
| Nieuwpoort to Oregon City (Oregon) | 5,018.52 mi (8,076.53 km) |
| Nieuwpoort to Orem (Utah) | 4,990.17 mi (8,030.91 km) |
| Nieuwpoort to Orinda (California) | 5,444.35 mi (8,761.83 km) |
| Nieuwpoort to Orland Park (Illinois) | 4,091.07 mi (6,583.94 km) |
| Nieuwpoort to Orlando (Florida) | 4,467.50 mi (7,189.75 km) |
| Nieuwpoort to Ormond Beach (Florida) | 4,416.71 mi (7,108.01 km) |
| Nieuwpoort to Oro Valley (Arizona) | 5,404.60 mi (8,697.86 km) |
| Nieuwpoort to Oroville (California) | 5,331.82 mi (8,580.74 km) |
| Nieuwpoort to Oshkosh (Wisconsin) | 4,004.10 mi (6,443.98 km) |
| Nieuwpoort to Oskaloosa (Iowa) | 4,284.22 mi (6,894.78 km) |
