| Srem to Olivenza | 1,480.24 mi (2,382.21 km) |
| Srem to Olot | 963.36 mi (1,550.38 km) |
| Srem to Onate | 1,095.50 mi (1,763.03 km) |
| Srem to Onda | 1,172.83 mi (1,887.48 km) |
| Srem to Onteniente | 1,246.32 mi (2,005.76 km) |
| Srem to Orihuela | 1,298.17 mi (2,089.20 km) |
| Srem to Osuna | 1,483.68 mi (2,387.75 km) |
| Srem to Ourense | 1,338.26 mi (2,153.73 km) |
| Srem to Oviedo | 1,214.20 mi (1,954.06 km) |
| Srem to Paiporta | 1,206.92 mi (1,942.35 km) |
| Srem to Pajara | 2,287.87 mi (3,681.98 km) |
| Srem to Palafolls | 982.50 mi (1,581.19 km) |
| Srem to Palafrugell | 955.91 mi (1,538.38 km) |
| Srem to Palamos | 960.89 mi (1,546.40 km) |
| Srem to Palencia | 1,222.65 mi (1,967.67 km) |
