| Poughkeepsie to Olivares | 3,527.85 mi (5,677.53 km) |
| Poughkeepsie to Olivenza | 3,442.26 mi (5,539.79 km) |
| Poughkeepsie to Olot | 3,785.19 mi (6,091.67 km) |
| Poughkeepsie to Onate | 3,535.21 mi (5,689.37 km) |
| Poughkeepsie to Onda | 3,728.68 mi (6,000.73 km) |
| Poughkeepsie to Onteniente | 3,749.37 mi (6,034.03 km) |
| Poughkeepsie to Orihuela | 3,757.40 mi (6,046.96 km) |
| Poughkeepsie to Osuna | 3,584.87 mi (5,769.29 km) |
| Poughkeepsie to Ourense | 3,301.32 mi (5,312.97 km) |
| Poughkeepsie to Oviedo | 3,368.07 mi (5,420.38 km) |
| Poughkeepsie to Paiporta | 3,738.63 mi (6,016.74 km) |
| Poughkeepsie to Pajara | 3,436.98 mi (5,531.29 km) |
| Poughkeepsie to Palafolls | 3,813.50 mi (6,137.24 km) |
| Poughkeepsie to Palafrugell | 3,824.32 mi (6,154.64 km) |
| Poughkeepsie to Palamos | 3,825.07 mi (6,155.85 km) |
