| Merthyr Tudful to San Giovanni Lupatoto | 789.85 mi (1,271.15 km) |
| Merthyr Tudful to San Giovanni Rotondo | 1,134.77 mi (1,826.24 km) |
| Merthyr Tudful to San Giovanni Valdarno | 892.00 mi (1,435.54 km) |
| Merthyr Tudful to San Giuliano Milanese | 724.37 mi (1,165.76 km) |
| Merthyr Tudful to San Giuliano Terme | 843.78 mi (1,357.94 km) |
| Merthyr Tudful to San Giuseppe Iato | 1,244.63 mi (2,003.04 km) |
| Merthyr Tudful to San Giuseppe Vesuviano | 1,133.26 mi (1,823.81 km) |
| Merthyr Tudful to San Giustino | 916.10 mi (1,474.33 km) |
| Merthyr Tudful to San Gregorio di Catania | 1,328.73 mi (2,138.39 km) |
| Merthyr Tudful to San Lazzaro di Savena | 844.50 mi (1,359.10 km) |
| Merthyr Tudful to San Marco in Lamis | 1,130.58 mi (1,819.49 km) |
| Merthyr Tudful to San Martino Buon Albergo | 790.93 mi (1,272.87 km) |
| Merthyr Tudful to San Martino di Lupari | 809.88 mi (1,303.37 km) |
| Merthyr Tudful to San Marzano di San Giuseppe | 1,260.93 mi (2,029.27 km) |
| Merthyr Tudful to San Marzano sul Sarno | 1,139.85 mi (1,834.41 km) |
