| Alzey to Olivenza | 1,069.26 mi (1,720.81 km) |
| Alzey to Olot | 587.92 mi (946.16 km) |
| Alzey to Onate | 682.21 mi (1,097.92 km) |
| Alzey to Onda | 789.68 mi (1,270.86 km) |
| Alzey to Onteniente | 868.00 mi (1,396.92 km) |
| Alzey to Orihuela | 921.76 mi (1,483.42 km) |
| Alzey to Osuna | 1,085.75 mi (1,747.35 km) |
| Alzey to Ourense | 918.65 mi (1,478.43 km) |
| Alzey to Oviedo | 794.69 mi (1,278.93 km) |
| Alzey to Paiporta | 826.16 mi (1,329.57 km) |
| Alzey to Pajara | 1,884.07 mi (3,032.12 km) |
| Alzey to Palafolls | 614.75 mi (989.35 km) |
| Alzey to Palafrugell | 590.77 mi (950.76 km) |
| Alzey to Palamos | 596.02 mi (959.20 km) |
| Alzey to Palencia | 807.58 mi (1,299.68 km) |
