| Gateway to Olivares | 4,376.90 mi (7,043.95 km) |
| Gateway to Olivenza | 4,305.88 mi (6,929.64 km) |
| Gateway to Olot | 4,730.63 mi (7,613.22 km) |
| Gateway to Onate | 4,474.53 mi (7,201.06 km) |
| Gateway to Onda | 4,637.00 mi (7,462.53 km) |
| Gateway to Onteniente | 4,641.65 mi (7,470.01 km) |
| Gateway to Orihuela | 4,638.56 mi (7,465.04 km) |
| Gateway to Osuna | 4,435.93 mi (7,138.93 km) |
| Gateway to Ourense | 4,214.40 mi (6,782.41 km) |
| Gateway to Oviedo | 4,301.09 mi (6,921.93 km) |
| Gateway to Paiporta | 4,639.51 mi (7,466.56 km) |
| Gateway to Pajara | 4,091.33 mi (6,584.36 km) |
| Gateway to Palafolls | 4,753.92 mi (7,650.69 km) |
| Gateway to Palafrugell | 4,769.08 mi (7,675.09 km) |
| Gateway to Palamos | 4,768.88 mi (7,674.78 km) |
