| Merthyr Tudful to Wambrechies | 287.48 mi (462.66 km) |
| Merthyr Tudful to Wasquehal | 291.24 mi (468.71 km) |
| Merthyr Tudful to Wattignies | 289.38 mi (465.71 km) |
| Merthyr Tudful to Wattrelos | 294.23 mi (473.53 km) |
| Merthyr Tudful to Wingles | 283.67 mi (456.53 km) |
| Merthyr Tudful to Wittelsheim | 545.48 mi (877.87 km) |
| Merthyr Tudful to Wittenheim | 549.23 mi (883.91 km) |
| Merthyr Tudful to Woippy | 455.48 mi (733.02 km) |
| Merthyr Tudful to Yerres | 332.89 mi (535.74 km) |
| Merthyr Tudful to Yutz | 450.71 mi (725.35 km) |
| Merthyr Tudful to Yvetot | 232.94 mi (374.88 km) |
| Merthyr Tudful to Yzeure | 469.18 mi (755.08 km) |
| Merthyr Tudful to Cayenne | 4,269.59 mi (6,871.25 km) |
| Merthyr Tudful to Iracoubo | 4,270.27 mi (6,872.33 km) |
| Merthyr Tudful to Kourou | 4,268.00 mi (6,868.68 km) |
