| Westchester to Oberkirch | 4,837.47 mi (7,785.16 km) |
| Westchester to Obernburg am Main | 4,857.15 mi (7,816.83 km) |
| Westchester to Obernkirchen | 4,808.57 mi (7,738.64 km) |
| Westchester to Oberschleissheim | 4,995.57 mi (8,039.60 km) |
| Westchester to Oberstdorf | 4,957.74 mi (7,978.72 km) |
| Westchester to Obertraubling | 5,005.20 mi (8,055.10 km) |
| Westchester to Obertshausen | 4,839.51 mi (7,788.44 km) |
| Westchester to Oberursel | 4,825.94 mi (7,766.61 km) |
| Westchester to Ochsenfurt | 4,900.50 mi (7,886.59 km) |
| Westchester to Ochsenhausen | 4,928.78 mi (7,932.10 km) |
| Westchester to Ochtrup | 4,731.04 mi (7,613.87 km) |
| Westchester to Odenthal | 4,748.78 mi (7,642.42 km) |
| Westchester to Oelde | 4,777.14 mi (7,688.06 km) |
| Westchester to Oelsnitz | 4,972.43 mi (8,002.35 km) |
| Westchester to Oer-Erkenschwick | 4,743.48 mi (7,633.89 km) |
