| Troina to Olivenza | 1,176.64 mi (1,893.62 km) |
| Troina to Olot | 708.68 mi (1,140.51 km) |
| Troina to Onate | 963.75 mi (1,551.00 km) |
| Troina to Onda | 812.60 mi (1,307.75 km) |
| Troina to Onteniente | 826.70 mi (1,330.45 km) |
| Troina to Orihuela | 846.50 mi (1,362.30 km) |
| Troina to Osuna | 1,078.42 mi (1,735.54 km) |
| Troina to Ourense | 1,224.84 mi (1,971.19 km) |
| Troina to Oviedo | 1,136.53 mi (1,829.08 km) |
| Troina to Paiporta | 817.84 mi (1,316.18 km) |
| Troina to Pajara | 1,776.16 mi (2,858.45 km) |
| Troina to Palafolls | 683.77 mi (1,100.42 km) |
| Troina to Palafrugell | 669.80 mi (1,077.94 km) |
| Troina to Palamos | 669.65 mi (1,077.70 km) |
| Troina to Palencia | 1,052.95 mi (1,694.57 km) |
