| West Haven to Olivares | 3,490.63 mi (5,617.63 km) |
| West Haven to Olivenza | 3,405.85 mi (5,481.18 km) |
| West Haven to Olot | 3,755.34 mi (6,043.63 km) |
| West Haven to Onate | 3,504.51 mi (5,639.97 km) |
| West Haven to Onda | 3,695.81 mi (5,947.84 km) |
| West Haven to Onteniente | 3,715.37 mi (5,979.30 km) |
| West Haven to Orihuela | 3,722.63 mi (5,990.99 km) |
| West Haven to Osuna | 3,547.86 mi (5,709.73 km) |
| West Haven to Ourense | 3,268.19 mi (5,259.65 km) |
| West Haven to Oviedo | 3,336.61 mi (5,369.76 km) |
| West Haven to Paiporta | 3,705.22 mi (5,962.98 km) |
| West Haven to Pajara | 3,389.99 mi (5,455.67 km) |
| West Haven to Palafolls | 3,783.27 mi (6,088.58 km) |
| West Haven to Palafrugell | 3,794.45 mi (6,106.58 km) |
| West Haven to Palamos | 3,795.13 mi (6,107.67 km) |
