| Santo Tirso to Olivenza | 196.68 mi (316.53 km) |
| Santo Tirso to Olot | 567.31 mi (913.00 km) |
| Santo Tirso to Onate | 331.17 mi (532.97 km) |
| Santo Tirso to Onda | 440.14 mi (708.33 km) |
| Santo Tirso to Onteniente | 450.07 mi (724.31 km) |
| Santo Tirso to Orihuela | 458.14 mi (737.30 km) |
| Santo Tirso to Osuna | 335.59 mi (540.08 km) |
| Santo Tirso to Ourense | 75.95 mi (122.23 km) |
| Santo Tirso to Oviedo | 193.71 mi (311.75 km) |
| Santo Tirso to Paiporta | 443.40 mi (713.58 km) |
| Santo Tirso to Pajara | 951.66 mi (1,531.55 km) |
| Santo Tirso to Palafolls | 580.51 mi (934.25 km) |
| Santo Tirso to Palafrugell | 601.54 mi (968.09 km) |
| Santo Tirso to Palamos | 599.80 mi (965.29 km) |
| Santo Tirso to Palencia | 208.39 mi (335.37 km) |
