| Alfter to Olivenza | 1,079.35 mi (1,737.04 km) |
| Alfter to Olot | 628.62 mi (1,011.67 km) |
| Alfter to Onate | 692.67 mi (1,114.74 km) |
| Alfter to Onda | 822.92 mi (1,324.36 km) |
| Alfter to Onteniente | 902.77 mi (1,452.87 km) |
| Alfter to Orihuela | 956.85 mi (1,539.91 km) |
| Alfter to Osuna | 1,107.12 mi (1,781.73 km) |
| Alfter to Ourense | 911.64 mi (1,467.15 km) |
| Alfter to Oviedo | 789.20 mi (1,270.10 km) |
| Alfter to Paiporta | 860.18 mi (1,384.33 km) |
| Alfter to Pajara | 1,897.88 mi (3,054.35 km) |
| Alfter to Palafolls | 658.41 mi (1,059.61 km) |
| Alfter to Palafrugell | 636.08 mi (1,023.68 km) |
| Alfter to Palamos | 641.32 mi (1,032.11 km) |
| Alfter to Palencia | 814.00 mi (1,310.00 km) |
