| Norridge to Olivares | 4,182.94 mi (6,731.79 km) |
| Norridge to Olivenza | 4,092.73 mi (6,586.62 km) |
| Norridge to Olot | 4,388.31 mi (7,062.31 km) |
| Norridge to Onate | 4,146.34 mi (6,672.89 km) |
| Norridge to Onda | 4,353.98 mi (7,007.06 km) |
| Norridge to Onteniente | 4,382.44 mi (7,052.85 km) |
| Norridge to Orihuela | 4,395.61 mi (7,074.04 km) |
| Norridge to Osuna | 4,238.38 mi (6,821.01 km) |
| Norridge to Ourense | 3,931.16 mi (6,326.58 km) |
| Norridge to Oviedo | 3,985.84 mi (6,414.59 km) |
| Norridge to Paiporta | 4,367.59 mi (7,028.96 km) |
| Norridge to Pajara | 4,141.35 mi (6,664.86 km) |
| Norridge to Palafolls | 4,419.28 mi (7,112.14 km) |
| Norridge to Palafrugell | 4,427.21 mi (7,124.91 km) |
| Norridge to Palamos | 4,428.54 mi (7,127.05 km) |
