| Merthyr Tudful to Tullinge | 973.28 mi (1,566.35 km) |
| Merthyr Tudful to Tumba | 970.56 mi (1,561.97 km) |
| Merthyr Tudful to Uddevalla | 755.37 mi (1,215.64 km) |
| Merthyr Tudful to Ulricehamn | 785.72 mi (1,264.50 km) |
| Merthyr Tudful to Umea | 1,193.13 mi (1,920.15 km) |
| Merthyr Tudful to Upplands Vasby | 982.43 mi (1,581.07 km) |
| Merthyr Tudful to Uppsala | 983.52 mi (1,582.83 km) |
| Merthyr Tudful to Uppsala | 983.61 mi (1,582.97 km) |
| Merthyr Tudful to Vallentuna | 988.24 mi (1,590.42 km) |
| Merthyr Tudful to Vanersborg | 769.22 mi (1,237.94 km) |
| Merthyr Tudful to Varberg | 726.03 mi (1,168.43 km) |
| Merthyr Tudful to Vasteras | 942.11 mi (1,516.18 km) |
| Merthyr Tudful to Vasterhaninge | 976.56 mi (1,571.62 km) |
| Merthyr Tudful to Vastervik | 894.85 mi (1,440.12 km) |
| Merthyr Tudful to Vaxjo | 811.08 mi (1,305.30 km) |
