| Eupen to Olivenza | 1,044.62 mi (1,681.16 km) |
| Eupen to Olot | 607.65 mi (977.92 km) |
| Eupen to Onate | 658.85 mi (1,060.32 km) |
| Eupen to Onda | 797.56 mi (1,283.55 km) |
| Eupen to Onteniente | 877.88 mi (1,412.81 km) |
| Eupen to Orihuela | 931.99 mi (1,499.89 km) |
| Eupen to Osuna | 1,076.24 mi (1,732.04 km) |
| Eupen to Ourense | 872.51 mi (1,404.16 km) |
| Eupen to Oviedo | 750.60 mi (1,207.97 km) |
| Eupen to Paiporta | 835.07 mi (1,343.92 km) |
| Eupen to Pajara | 1,863.74 mi (2,999.40 km) |
| Eupen to Palafolls | 638.81 mi (1,028.06 km) |
| Eupen to Palafrugell | 617.49 mi (993.75 km) |
| Eupen to Palamos | 622.69 mi (1,002.12 km) |
| Eupen to Palencia | 778.58 mi (1,253.01 km) |
