| Harborne to Olivares | 1,059.03 mi (1,704.35 km) |
| Harborne to Olivenza | 983.13 mi (1,582.20 km) |
| Harborne to Olot | 739.57 mi (1,190.23 km) |
| Harborne to Onate | 651.68 mi (1,048.78 km) |
| Harborne to Onda | 867.18 mi (1,395.60 km) |
| Harborne to Onteniente | 944.47 mi (1,519.97 km) |
| Harborne to Orihuela | 994.35 mi (1,600.25 km) |
| Harborne to Osuna | 1,063.06 mi (1,710.82 km) |
| Harborne to Ourense | 751.53 mi (1,209.48 km) |
| Harborne to Oviedo | 653.86 mi (1,052.29 km) |
| Harborne to Paiporta | 903.39 mi (1,453.86 km) |
| Harborne to Pajara | 1,778.67 mi (2,862.49 km) |
| Harborne to Palafolls | 777.28 mi (1,250.91 km) |
| Harborne to Palafrugell | 766.48 mi (1,233.53 km) |
| Harborne to Palamos | 770.73 mi (1,240.37 km) |
