| Arad to Olivenza | 1,528.77 mi (2,460.31 km) |
| Arad to Olot | 970.02 mi (1,561.10 km) |
| Arad to Onate | 1,182.68 mi (1,903.33 km) |
| Arad to Onda | 1,165.99 mi (1,876.49 km) |
| Arad to Onteniente | 1,221.46 mi (1,965.75 km) |
| Arad to Orihuela | 1,264.31 mi (2,034.71 km) |
| Arad to Osuna | 1,486.80 mi (2,392.78 km) |
| Arad to Ourense | 1,459.39 mi (2,348.66 km) |
| Arad to Oviedo | 1,339.61 mi (2,155.89 km) |
| Arad to Paiporta | 1,191.29 mi (1,917.19 km) |
| Arad to Pajara | 2,275.82 mi (3,662.57 km) |
| Arad to Palafolls | 972.11 mi (1,564.46 km) |
| Arad to Palafrugell | 945.65 mi (1,521.88 km) |
| Arad to Palamos | 949.29 mi (1,527.74 km) |
| Arad to Palencia | 1,308.05 mi (2,105.10 km) |
