| Westchester to Oerlinghausen | 4,795.85 mi (7,718.18 km) |
| Westchester to Oestrich-Winkel | 4,805.32 mi (7,733.42 km) |
| Westchester to Offenburg | 4,832.21 mi (7,776.69 km) |
| Westchester to Oftersheim | 4,842.67 mi (7,793.52 km) |
| Westchester to Ohrdruf | 4,903.83 mi (7,891.96 km) |
| Westchester to Ohringen | 4,885.56 mi (7,862.55 km) |
| Westchester to Olbernhau | 5,015.11 mi (8,071.04 km) |
| Westchester to Olching | 4,985.82 mi (8,023.90 km) |
| Westchester to Oldenburg | 4,755.84 mi (7,653.79 km) |
| Westchester to Oldenburg in Holstein | 4,839.00 mi (7,787.61 km) |
| Westchester to Olfen | 4,747.63 mi (7,640.58 km) |
| Westchester to Olpe | 4,779.12 mi (7,691.24 km) |
| Westchester to Olsberg | 4,799.96 mi (7,724.78 km) |
| Westchester to Oranienburg | 4,963.65 mi (7,988.22 km) |
| Westchester to Ortenberg | 4,843.19 mi (7,794.36 km) |
