| Glasgow to Olivares | 1,277.45 mi (2,055.85 km) |
| Glasgow to Olivenza | 1,193.94 mi (1,921.47 km) |
| Glasgow to Olot | 992.07 mi (1,596.59 km) |
| Glasgow to Onate | 890.05 mi (1,432.40 km) |
| Glasgow to Onda | 1,113.43 mi (1,791.88 km) |
| Glasgow to Onteniente | 1,189.15 mi (1,913.75 km) |
| Glasgow to Orihuela | 1,237.65 mi (1,991.80 km) |
| Glasgow to Osuna | 1,287.67 mi (2,072.30 km) |
| Glasgow to Ourense | 948.32 mi (1,526.18 km) |
| Glasgow to Oviedo | 866.63 mi (1,394.70 km) |
| Glasgow to Paiporta | 1,148.91 mi (1,849.00 km) |
| Glasgow to Pajara | 1,962.31 mi (3,158.04 km) |
| Glasgow to Palafolls | 1,029.82 mi (1,657.33 km) |
| Glasgow to Palafrugell | 1,019.18 mi (1,640.21 km) |
| Glasgow to Palamos | 1,023.42 mi (1,647.04 km) |
