| Mels to Olivares | 1,034.51 mi (1,664.88 km) |
| Mels to Olivenza | 1,013.36 mi (1,630.84 km) |
| Mels to Olot | 478.39 mi (769.89 km) |
| Mels to Onate | 640.02 mi (1,030.01 km) |
| Mels to Onda | 688.30 mi (1,107.71 km) |
| Mels to Onteniente | 760.50 mi (1,223.90 km) |
| Mels to Orihuela | 812.01 mi (1,306.80 km) |
| Mels to Osuna | 1,003.55 mi (1,615.06 km) |
| Mels to Ourense | 906.71 mi (1,459.20 km) |
| Mels to Oviedo | 783.94 mi (1,261.63 km) |
| Mels to Paiporta | 721.66 mi (1,161.40 km) |
| Mels to Pajara | 1,808.90 mi (2,911.15 km) |
| Mels to Palafolls | 496.26 mi (798.65 km) |
| Mels to Palafrugell | 469.56 mi (755.68 km) |
| Mels to Palamos | 474.52 mi (763.66 km) |
