| Rietberg to Orangevale (California) | 5,489.10 mi (8,833.85 km) |
| Rietberg to Orchards (Washington) | 5,098.55 mi (8,205.33 km) |
| Rietberg to Orcutt (California) | 5,698.43 mi (9,170.74 km) |
| Rietberg to Oregon (Ohio) | 4,112.39 mi (6,618.25 km) |
| Rietberg to Oregon (Wisconsin) | 4,265.38 mi (6,864.46 km) |
| Rietberg to Oregon City (Oregon) | 5,120.97 mi (8,241.41 km) |
| Rietberg to Orem (Utah) | 5,129.97 mi (8,255.88 km) |
| Rietberg to Orinda (California) | 5,562.97 mi (8,952.74 km) |
| Rietberg to Orland Park (Illinois) | 4,276.36 mi (6,882.14 km) |
| Rietberg to Orlando (Florida) | 4,688.62 mi (7,545.60 km) |
| Rietberg to Ormond Beach (Florida) | 4,636.92 mi (7,462.41 km) |
| Rietberg to Oro Valley (Arizona) | 5,562.27 mi (8,951.61 km) |
| Rietberg to Oroville (California) | 5,448.88 mi (8,769.13 km) |
| Rietberg to Oshkosh (Wisconsin) | 4,182.20 mi (6,730.61 km) |
| Rietberg to Oskaloosa (Iowa) | 4,461.65 mi (7,180.32 km) |
