| Mangalia to Olivenza | 1,872.14 mi (3,012.93 km) |
| Mangalia to Olot | 1,317.90 mi (2,120.96 km) |
| Mangalia to Onate | 1,547.38 mi (2,490.28 km) |
| Mangalia to Onda | 1,499.54 mi (2,413.28 km) |
| Mangalia to Onteniente | 1,544.92 mi (2,486.31 km) |
| Mangalia to Orihuela | 1,581.81 mi (2,545.68 km) |
| Mangalia to Osuna | 1,812.91 mi (2,917.60 km) |
| Mangalia to Ourense | 1,827.31 mi (2,940.77 km) |
| Mangalia to Oviedo | 1,710.68 mi (2,753.07 km) |
| Mangalia to Paiporta | 1,520.08 mi (2,446.33 km) |
| Mangalia to Pajara | 2,576.48 mi (4,146.45 km) |
| Mangalia to Palafolls | 1,313.76 mi (2,114.29 km) |
| Mangalia to Palafrugell | 1,288.83 mi (2,074.17 km) |
| Mangalia to Palamos | 1,291.77 mi (2,078.91 km) |
| Mangalia to Palencia | 1,669.08 mi (2,686.12 km) |
