| Harpenden to Totana | 972.11 mi (1,564.46 km) |
| Harpenden to Trujillo | 893.58 mi (1,438.07 km) |
| Harpenden to Tudela | 676.38 mi (1,088.52 km) |
| Harpenden to Tudela de Duero | 734.56 mi (1,182.16 km) |
| Harpenden to Tuineje | 1,771.13 mi (2,850.36 km) |
| Harpenden to Ubeda | 965.04 mi (1,553.08 km) |
| Harpenden to Ubrique | 1,075.00 mi (1,730.05 km) |
| Harpenden to Umbrete | 1,037.57 mi (1,669.81 km) |
| Harpenden to Utebo | 698.73 mi (1,124.50 km) |
| Harpenden to Utiel | 847.40 mi (1,363.76 km) |
| Harpenden to Utrera | 1,045.02 mi (1,681.80 km) |
| Harpenden to Valdemorillo | 801.52 mi (1,289.92 km) |
| Harpenden to Valdemoro | 818.77 mi (1,317.68 km) |
| Harpenden to Valdepenas | 913.60 mi (1,470.29 km) |
| Harpenden to Valencia | 853.13 mi (1,372.98 km) |
