| Westchester to Odenton (Maryland) | 944.43 mi (1,519.92 km) |
| Westchester to Odessa (Texas) | 1,394.22 mi (2,243.78 km) |
| Westchester to Ogden (Utah) | 2,095.24 mi (3,371.96 km) |
| Westchester to Oildale (California) | 2,379.15 mi (3,828.87 km) |
| Westchester to Ojus (Florida) | 18.74 mi (30.15 km) |
| Westchester to Okemos (Michigan) | 1,194.08 mi (1,921.68 km) |
| Westchester to Oklahoma City (Oklahoma) | 1,218.77 mi (1,961.42 km) |
| Westchester to Okmulgee (Oklahoma) | 1,150.74 mi (1,851.94 km) |
| Westchester to Olathe (Kansas) | 1,236.72 mi (1,990.31 km) |
| Westchester to Old Jamestown (Missouri) | 1,073.01 mi (1,726.84 km) |
| Westchester to Oldsmar (Florida) | 213.82 mi (344.10 km) |
| Westchester to Olean (New York) | 1,133.90 mi (1,824.83 km) |
| Westchester to Olive Branch (Mississippi) | 850.97 mi (1,369.50 km) |
| Westchester to Olivehurst (California) | 2,548.11 mi (4,100.79 km) |
| Westchester to Olney (Maryland) | 945.17 mi (1,521.10 km) |
