| Belgrade to Olivenza | 1,474.40 mi (2,372.82 km) |
| Belgrade to Olot | 916.91 mi (1,475.62 km) |
| Belgrade to Onate | 1,141.27 mi (1,836.69 km) |
| Belgrade to Onda | 1,105.94 mi (1,779.83 km) |
| Belgrade to Onteniente | 1,157.09 mi (1,862.15 km) |
| Belgrade to Orihuela | 1,197.66 mi (1,927.45 km) |
| Belgrade to Osuna | 1,424.26 mi (2,292.12 km) |
| Belgrade to Ourense | 1,420.73 mi (2,286.45 km) |
| Belgrade to Oviedo | 1,303.58 mi (2,097.92 km) |
| Belgrade to Paiporta | 1,129.12 mi (1,817.15 km) |
| Belgrade to Pajara | 2,205.30 mi (3,549.09 km) |
| Belgrade to Palafolls | 915.49 mi (1,473.34 km) |
| Belgrade to Palafrugell | 889.77 mi (1,431.95 km) |
| Belgrade to Palamos | 893.04 mi (1,437.22 km) |
| Belgrade to Palencia | 1,264.04 mi (2,034.28 km) |
