| Castelnaudary to Olivenza | 569.88 mi (917.14 km) |
| Castelnaudary to Olot | 83.05 mi (133.65 km) |
| Castelnaudary to Onate | 221.07 mi (355.78 km) |
| Castelnaudary to Onda | 258.56 mi (416.12 km) |
| Castelnaudary to Onteniente | 338.03 mi (544.00 km) |
| Castelnaudary to Orihuela | 392.09 mi (631.02 km) |
| Castelnaudary to Osuna | 560.83 mi (902.57 km) |
| Castelnaudary to Ourense | 501.77 mi (807.53 km) |
| Castelnaudary to Oviedo | 391.78 mi (630.51 km) |
| Castelnaudary to Paiporta | 295.56 mi (475.66 km) |
| Castelnaudary to Pajara | 1,365.49 mi (2,197.54 km) |
| Castelnaudary to Palafolls | 120.94 mi (194.63 km) |
| Castelnaudary to Palafrugell | 114.65 mi (184.52 km) |
| Castelnaudary to Palamos | 117.99 mi (189.88 km) |
| Castelnaudary to Palencia | 341.52 mi (549.63 km) |
