| Westchester to Orangeburg (South Carolina) | 536.07 mi (862.71 km) |
| Westchester to Orangevale (California) | 2,526.26 mi (4,065.62 km) |
| Westchester to Orchards (Washington) | 2,694.85 mi (4,336.93 km) |
| Westchester to Orcutt (California) | 2,454.43 mi (3,950.02 km) |
| Westchester to Oregon (Ohio) | 1,112.91 mi (1,791.05 km) |
| Westchester to Oregon (Wisconsin) | 1,292.12 mi (2,079.47 km) |
| Westchester to Oregon City (Oregon) | 2,691.18 mi (4,331.04 km) |
| Westchester to Orem (Utah) | 2,059.91 mi (3,315.11 km) |
| Westchester to Orinda (California) | 2,570.53 mi (4,136.87 km) |
| Westchester to Orland Park (Illinois) | 1,176.63 mi (1,893.60 km) |
| Westchester to Orlando (Florida) | 198.12 mi (318.84 km) |
| Westchester to Ormond Beach (Florida) | 249.63 mi (401.74 km) |
| Westchester to Oro Valley (Arizona) | 1,898.64 mi (3,055.56 km) |
| Westchester to Oroville (California) | 2,552.96 mi (4,108.60 km) |
| Westchester to Oshkosh (Wisconsin) | 1,343.99 mi (2,162.94 km) |
