| Pendleton to Orangeburg (South Carolina) | 2,164.23 mi (3,483.00 km) |
| Pendleton to Orangevale (California) | 498.13 mi (801.67 km) |
| Pendleton to Orchards (Washington) | 179.10 mi (288.23 km) |
| Pendleton to Orcutt (California) | 751.38 mi (1,209.23 km) |
| Pendleton to Oregon (Ohio) | 1,775.66 mi (2,857.64 km) |
| Pendleton to Oregon (Wisconsin) | 1,459.32 mi (2,348.55 km) |
| Pendleton to Oregon City (Oregon) | 184.09 mi (296.27 km) |
| Pendleton to Orem (Utah) | 516.87 mi (831.83 km) |
| Pendleton to Orinda (California) | 565.56 mi (910.18 km) |
| Pendleton to Orland Park (Illinois) | 1,563.11 mi (2,515.58 km) |
| Pendleton to Orlando (Florida) | 2,353.12 mi (3,786.99 km) |
| Pendleton to Ormond Beach (Florida) | 2,327.48 mi (3,745.72 km) |
| Pendleton to Oro Valley (Arizona) | 1,006.68 mi (1,620.09 km) |
| Pendleton to Oroville (California) | 448.87 mi (722.39 km) |
| Pendleton to Oshkosh (Wisconsin) | 1,477.73 mi (2,378.18 km) |
