| Darlington to Olivares | 1,202.00 mi (1,934.43 km) |
| Darlington to Olivenza | 1,124.89 mi (1,810.33 km) |
| Darlington to Olot | 872.52 mi (1,404.19 km) |
| Darlington to Onate | 795.10 mi (1,279.58 km) |
| Darlington to Onda | 1,008.08 mi (1,622.35 km) |
| Darlington to Onteniente | 1,086.00 mi (1,747.74 km) |
| Darlington to Orihuela | 1,136.35 mi (1,828.77 km) |
| Darlington to Osuna | 1,206.61 mi (1,941.86 km) |
| Darlington to Ourense | 889.71 mi (1,431.84 km) |
| Darlington to Oviedo | 795.39 mi (1,280.06 km) |
| Darlington to Paiporta | 1,044.59 mi (1,681.10 km) |
| Darlington to Pajara | 1,915.21 mi (3,082.23 km) |
| Darlington to Palafolls | 909.87 mi (1,464.30 km) |
| Darlington to Palafrugell | 897.36 mi (1,444.16 km) |
| Darlington to Palamos | 901.83 mi (1,451.35 km) |
