| Cities | Distance |
|---|---|
| Trets to Olivenza | 741.79 mi (1,193.80 km) |
| Trets to Olot | 184.07 mi (296.23 km) |
| Trets to Onate | 408.67 mi (657.69 km) |
| Trets to Onda | 389.89 mi (627.47 km) |
| Trets to Onteniente | 457.28 mi (735.93 km) |
| Trets to Orihuela | 507.29 mi (816.41 km) |
| Trets to Osuna | 711.03 mi (1,144.29 km) |
| Trets to Ourense | 689.37 mi (1,109.43 km) |
| Trets to Oviedo | 578.40 mi (930.84 km) |
| Trets to Paiporta | 420.60 mi (676.89 km) |
| Trets to Pajara | 1,513.88 mi (2,436.35 km) |
| Trets to Palafolls | 193.37 mi (311.20 km) |
| Trets to Palafrugell | 166.08 mi (267.27 km) |
| Trets to Palamos | 170.64 mi (274.62 km) |
| Trets to Palencia | 527.61 mi (849.10 km) |