| Oskaloosa to Olivares | 4,425.85 mi (7,122.72 km) |
| Oskaloosa to Olivenza | 4,334.68 mi (6,975.99 km) |
| Oskaloosa to Olot | 4,618.03 mi (7,432.00 km) |
| Oskaloosa to Onate | 4,378.62 mi (7,046.71 km) |
| Oskaloosa to Onda | 4,589.46 mi (7,386.02 km) |
| Oskaloosa to Onteniente | 4,619.81 mi (7,434.86 km) |
| Oskaloosa to Orihuela | 4,634.23 mi (7,458.07 km) |
| Oskaloosa to Osuna | 4,480.86 mi (7,211.25 km) |
| Oskaloosa to Ourense | 4,168.47 mi (6,708.50 km) |
| Oskaloosa to Oviedo | 4,220.11 mi (6,791.61 km) |
| Oskaloosa to Paiporta | 4,603.96 mi (7,409.36 km) |
| Oskaloosa to Pajara | 4,393.91 mi (7,071.32 km) |
| Oskaloosa to Palafolls | 4,649.62 mi (7,482.85 km) |
| Oskaloosa to Palafrugell | 4,656.79 mi (7,494.38 km) |
| Oskaloosa to Palamos | 4,658.27 mi (7,496.76 km) |
