| Upper Arlington to Olivares | 4,014.42 mi (6,460.59 km) |
| Upper Arlington to Olivenza | 3,927.58 mi (6,320.83 km) |
| Upper Arlington to Olot | 4,255.34 mi (6,848.31 km) |
| Upper Arlington to Onate | 4,007.96 mi (6,450.19 km) |
| Upper Arlington to Onda | 4,206.67 mi (6,769.98 km) |
| Upper Arlington to Onteniente | 4,229.91 mi (6,807.37 km) |
| Upper Arlington to Orihuela | 4,239.52 mi (6,822.85 km) |
| Upper Arlington to Osuna | 4,071.09 mi (6,551.78 km) |
| Upper Arlington to Ourense | 3,780.29 mi (6,083.79 km) |
| Upper Arlington to Oviedo | 3,842.98 mi (6,184.67 km) |
| Upper Arlington to Paiporta | 4,217.83 mi (6,787.95 km) |
| Upper Arlington to Pajara | 3,926.06 mi (6,318.38 km) |
| Upper Arlington to Palafolls | 4,284.69 mi (6,895.55 km) |
| Upper Arlington to Palafrugell | 4,294.44 mi (6,911.24 km) |
| Upper Arlington to Palamos | 4,295.41 mi (6,912.80 km) |
