| Middelburg to Olivenza | 1,025.76 mi (1,650.80 km) |
| Middelburg to Olot | 645.98 mi (1,039.60 km) |
| Middelburg to Onate | 649.26 mi (1,044.88 km) |
| Middelburg to Onda | 818.53 mi (1,317.30 km) |
| Middelburg to Onteniente | 899.40 mi (1,447.45 km) |
| Middelburg to Orihuela | 952.99 mi (1,533.69 km) |
| Middelburg to Osuna | 1,073.85 mi (1,728.19 km) |
| Middelburg to Ourense | 831.32 mi (1,337.89 km) |
| Middelburg to Oviedo | 714.25 mi (1,149.48 km) |
| Middelburg to Paiporta | 856.38 mi (1,378.20 km) |
| Middelburg to Pajara | 1,843.70 mi (2,967.14 km) |
| Middelburg to Palafolls | 680.47 mi (1,095.12 km) |
| Middelburg to Palafrugell | 662.44 mi (1,066.09 km) |
| Middelburg to Palamos | 667.44 mi (1,074.14 km) |
| Middelburg to Palencia | 759.29 mi (1,221.96 km) |
