| Ulus to Olivares | 2,070.40 mi (3,331.98 km) |
| Ulus to Olivenza | 2,090.24 mi (3,363.91 km) |
| Ulus to Olot | 1,543.43 mi (2,483.91 km) |
| Ulus to Onate | 1,781.02 mi (2,866.28 km) |
| Ulus to Onda | 1,714.90 mi (2,759.86 km) |
| Ulus to Onteniente | 1,753.93 mi (2,822.68 km) |
| Ulus to Orihuela | 1,786.92 mi (2,875.77 km) |
| Ulus to Osuna | 2,020.71 mi (3,252.02 km) |
| Ulus to Ourense | 2,061.73 mi (3,318.04 km) |
| Ulus to Oviedo | 1,947.73 mi (3,134.57 km) |
| Ulus to Paiporta | 1,732.46 mi (2,788.12 km) |
| Ulus to Pajara | 2,762.25 mi (4,445.41 km) |
| Ulus to Palafolls | 1,535.87 mi (2,471.74 km) |
| Ulus to Palafrugell | 1,512.09 mi (2,433.47 km) |
| Ulus to Palamos | 1,514.61 mi (2,437.54 km) |
