| Merthyr Tudful to Zottegem | 315.78 mi (508.19 km) |
| Merthyr Tudful to Zulte | 299.43 mi (481.89 km) |
| Merthyr Tudful to Zwevegem | 297.22 mi (478.33 km) |
| Merthyr Tudful to Zwijndrecht | 333.65 mi (536.96 km) |
| Merthyr Tudful to Asenovgrad | 1,480.80 mi (2,383.12 km) |
| Merthyr Tudful to Aytos | 1,552.44 mi (2,498.42 km) |
| Merthyr Tudful to Balchik | 1,563.09 mi (2,515.55 km) |
| Merthyr Tudful to Bankya | 1,381.55 mi (2,223.38 km) |
| Merthyr Tudful to Bansko | 1,431.83 mi (2,304.30 km) |
| Merthyr Tudful to Berkovitsa | 1,359.48 mi (2,187.87 km) |
| Merthyr Tudful to Blagoevgrad | 1,408.27 mi (2,266.39 km) |
| Merthyr Tudful to Botevgrad | 1,400.39 mi (2,253.70 km) |
| Merthyr Tudful to Burgas | 1,569.38 mi (2,525.68 km) |
| Merthyr Tudful to Byala Slatina | 1,384.21 mi (2,227.67 km) |
| Merthyr Tudful to Chirpan | 1,492.18 mi (2,401.43 km) |
