| Port Glasgow to Muro del Alcoy | 1,201.29 mi (1,933.29 km) |
| Port Glasgow to Naron | 869.20 mi (1,398.84 km) |
| Port Glasgow to Navalcarnero | 1,081.70 mi (1,740.83 km) |
| Port Glasgow to Navalmoral de la Mata | 1,108.64 mi (1,784.18 km) |
| Port Glasgow to Nerja | 1,326.24 mi (2,134.38 km) |
| Port Glasgow to Nigran | 970.56 mi (1,561.97 km) |
| Port Glasgow to Nijar | 1,315.65 mi (2,117.34 km) |
| Port Glasgow to Novelda | 1,225.95 mi (1,972.98 km) |
| Port Glasgow to Noya | 927.57 mi (1,492.79 km) |
| Port Glasgow to Nules | 1,130.25 mi (1,818.96 km) |
| Port Glasgow to Ocana | 1,105.25 mi (1,778.73 km) |
| Port Glasgow to Ogijares | 1,301.14 mi (2,093.99 km) |
| Port Glasgow to Oleiros | 885.30 mi (1,424.76 km) |
| Port Glasgow to Olesa de Montserrat | 1,037.33 mi (1,669.42 km) |
| Port Glasgow to Oliva | 1,194.19 mi (1,921.87 km) |
