| Sycamore to Orangeburg (South Carolina) | 725.54 mi (1,167.65 km) |
| Sycamore to Orangevale (California) | 1,718.27 mi (2,765.29 km) |
| Sycamore to Orchards (Washington) | 1,693.06 mi (2,724.72 km) |
| Sycamore to Orcutt (California) | 1,775.67 mi (2,857.66 km) |
| Sycamore to Oregon (Ohio) | 271.31 mi (436.63 km) |
| Sycamore to Oregon (Wisconsin) | 73.65 mi (118.53 km) |
| Sycamore to Oregon City (Oregon) | 1,697.70 mi (2,732.19 km) |
| Sycamore to Orem (Utah) | 1,199.65 mi (1,930.66 km) |
| Sycamore to Orinda (California) | 1,785.53 mi (2,873.53 km) |
| Sycamore to Orland Park (Illinois) | 50.04 mi (80.53 km) |
| Sycamore to Orlando (Florida) | 1,020.86 mi (1,642.92 km) |
| Sycamore to Ormond Beach (Florida) | 974.07 mi (1,567.62 km) |
| Sycamore to Oro Valley (Arizona) | 1,387.89 mi (2,233.59 km) |
| Sycamore to Oroville (California) | 1,719.14 mi (2,766.69 km) |
| Sycamore to Oshkosh (Wisconsin) | 140.18 mi (225.60 km) |
