| Westmont to Olivares | 5,858.41 mi (9,428.20 km) |
| Westmont to Olivenza | 5,762.91 mi (9,274.51 km) |
| Westmont to Olot | 5,979.81 mi (9,623.57 km) |
| Westmont to Onate | 5,756.98 mi (9,264.96 km) |
| Westmont to Onda | 5,981.81 mi (9,626.79 km) |
| Westmont to Onteniente | 6,021.81 mi (9,691.16 km) |
| Westmont to Orihuela | 6,042.70 mi (9,724.78 km) |
| Westmont to Osuna | 5,910.84 mi (9,512.58 km) |
| Westmont to Ourense | 5,574.68 mi (8,971.58 km) |
| Westmont to Oviedo | 5,610.52 mi (9,029.27 km) |
| Westmont to Paiporta | 6,000.87 mi (9,657.47 km) |
| Westmont to Pajara | 5,877.47 mi (9,458.88 km) |
| Westmont to Palafolls | 6,014.25 mi (9,679.00 km) |
| Westmont to Palafrugell | 6,017.27 mi (9,683.85 km) |
| Westmont to Palamos | 6,019.51 mi (9,687.46 km) |
