| Forest Lake to Olivares | 4,314.21 mi (6,943.05 km) |
| Forest Lake to Olivenza | 4,220.05 mi (6,791.52 km) |
| Forest Lake to Olot | 4,470.18 mi (7,194.07 km) |
| Forest Lake to Onate | 4,237.27 mi (6,819.22 km) |
| Forest Lake to Onda | 4,455.22 mi (7,169.98 km) |
| Forest Lake to Onteniente | 4,490.50 mi (7,226.75 km) |
| Forest Lake to Orihuela | 4,508.38 mi (7,255.54 km) |
| Forest Lake to Osuna | 4,367.57 mi (7,028.93 km) |
| Forest Lake to Ourense | 4,040.46 mi (6,502.48 km) |
| Forest Lake to Oviedo | 4,084.04 mi (6,572.62 km) |
| Forest Lake to Paiporta | 4,472.02 mi (7,197.02 km) |
| Forest Lake to Pajara | 4,339.61 mi (6,983.92 km) |
| Forest Lake to Palafolls | 4,503.05 mi (7,246.96 km) |
| Forest Lake to Palafrugell | 4,508.52 mi (7,255.77 km) |
| Forest Lake to Palamos | 4,510.32 mi (7,258.66 km) |
