| Allen Park to Olivares | 3,959.08 mi (6,371.52 km) |
| Allen Park to Olivenza | 3,870.02 mi (6,228.20 km) |
| Allen Park to Olot | 4,178.92 mi (6,725.32 km) |
| Allen Park to Onate | 3,934.39 mi (6,331.78 km) |
| Allen Park to Onda | 4,138.35 mi (6,660.02 km) |
| Allen Park to Onteniente | 4,164.69 mi (6,702.42 km) |
| Allen Park to Orihuela | 4,176.46 mi (6,721.37 km) |
| Allen Park to Osuna | 4,014.98 mi (6,461.48 km) |
| Allen Park to Ourense | 3,713.81 mi (5,976.80 km) |
| Allen Park to Oviedo | 3,771.85 mi (6,070.20 km) |
| Allen Park to Paiporta | 4,150.96 mi (6,680.32 km) |
| Allen Park to Pajara | 3,905.46 mi (6,285.24 km) |
| Allen Park to Palafolls | 4,209.17 mi (6,774.01 km) |
| Allen Park to Palafrugell | 4,217.93 mi (6,788.10 km) |
| Allen Park to Palamos | 4,219.10 mi (6,789.98 km) |
