| Uniondale to Olivares | 3,534.21 mi (5,687.77 km) |
| Uniondale to Olivenza | 3,449.90 mi (5,552.07 km) |
| Uniondale to Olot | 3,802.38 mi (6,119.34 km) |
| Uniondale to Onate | 3,551.25 mi (5,715.19 km) |
| Uniondale to Onda | 3,741.62 mi (6,021.56 km) |
| Uniondale to Onteniente | 3,760.64 mi (6,052.16 km) |
| Uniondale to Orihuela | 3,767.52 mi (6,063.24 km) |
| Uniondale to Osuna | 3,591.56 mi (5,780.06 km) |
| Uniondale to Ourense | 3,313.91 mi (5,333.23 km) |
| Uniondale to Oviedo | 3,383.06 mi (5,444.51 km) |
| Uniondale to Paiporta | 3,750.78 mi (6,036.30 km) |
| Uniondale to Pajara | 3,425.78 mi (5,513.26 km) |
| Uniondale to Palafolls | 3,830.17 mi (6,164.06 km) |
| Uniondale to Palafrugell | 3,841.49 mi (6,182.29 km) |
| Uniondale to Palamos | 3,842.14 mi (6,183.32 km) |
