| Lockport to Olivares | 4,203.67 mi (6,765.16 km) |
| Lockport to Olivenza | 4,113.72 mi (6,620.40 km) |
| Lockport to Olot | 4,411.60 mi (7,099.78 km) |
| Lockport to Onate | 4,169.25 mi (6,709.76 km) |
| Lockport to Onda | 4,376.33 mi (7,043.03 km) |
| Lockport to Onteniente | 4,404.43 mi (7,088.24 km) |
| Lockport to Orihuela | 4,417.34 mi (7,109.02 km) |
| Lockport to Osuna | 4,259.22 mi (6,854.56 km) |
| Lockport to Ourense | 3,953.19 mi (6,362.05 km) |
| Lockport to Oviedo | 4,008.44 mi (6,450.95 km) |
| Lockport to Paiporta | 4,389.78 mi (7,064.66 km) |
| Lockport to Pajara | 4,157.39 mi (6,690.67 km) |
| Lockport to Palafolls | 4,442.47 mi (7,149.46 km) |
| Lockport to Palafrugell | 4,450.52 mi (7,162.42 km) |
| Lockport to Palamos | 4,451.83 mi (7,164.52 km) |
