| Saint-Gilles to Olivenza | 690.87 mi (1,111.84 km) |
| Saint-Gilles to Olot | 142.58 mi (229.46 km) |
| Saint-Gilles to Onate | 346.79 mi (558.10 km) |
| Saint-Gilles to Onda | 352.50 mi (567.29 km) |
| Saint-Gilles to Onteniente | 425.32 mi (684.49 km) |
| Saint-Gilles to Orihuela | 477.48 mi (768.44 km) |
| Saint-Gilles to Osuna | 669.53 mi (1,077.50 km) |
| Saint-Gilles to Ourense | 627.46 mi (1,009.80 km) |
| Saint-Gilles to Oviedo | 515.00 mi (828.81 km) |
| Saint-Gilles to Paiporta | 385.99 mi (621.19 km) |
| Saint-Gilles to Pajara | 1,474.55 mi (2,373.07 km) |
| Saint-Gilles to Palafolls | 162.93 mi (262.20 km) |
| Saint-Gilles to Palafrugell | 137.57 mi (221.40 km) |
| Saint-Gilles to Palamos | 142.77 mi (229.77 km) |
| Saint-Gilles to Palencia | 468.13 mi (753.38 km) |
