| Merthyr Tudful to Surbo | 1,286.94 mi (2,071.14 km) |
| Merthyr Tudful to Susegana | 817.16 mi (1,315.10 km) |
| Merthyr Tudful to Suzzara | 796.57 mi (1,281.95 km) |
| Merthyr Tudful to Taggia | 753.03 mi (1,211.89 km) |
| Merthyr Tudful to Taglio | 850.62 mi (1,368.94 km) |
| Merthyr Tudful to Taormina | 1,318.54 mi (2,121.99 km) |
| Merthyr Tudful to Taranto | 1,250.39 mi (2,012.31 km) |
| Merthyr Tudful to Tarcento | 841.23 mi (1,353.82 km) |
| Merthyr Tudful to Tarquinia | 965.48 mi (1,553.80 km) |
| Merthyr Tudful to Taurianova | 1,316.05 mi (2,117.98 km) |
| Merthyr Tudful to Taurisano | 1,310.23 mi (2,108.61 km) |
| Merthyr Tudful to Tavagnacco | 844.38 mi (1,358.90 km) |
| Merthyr Tudful to Taviano | 1,305.50 mi (2,100.99 km) |
| Merthyr Tudful to Teano | 1,096.78 mi (1,765.10 km) |
| Merthyr Tudful to Tempio Pausania | 954.24 mi (1,535.71 km) |
