| Merthyr Tudful to San Maurizio Canavese | 675.10 mi (1,086.46 km) |
| Merthyr Tudful to San Mauro Pascoli | 898.97 mi (1,446.75 km) |
| Merthyr Tudful to San Mauro Torinese | 684.89 mi (1,102.22 km) |
| Merthyr Tudful to San Michele al Tagliamento | 849.92 mi (1,367.82 km) |
| Merthyr Tudful to San Miniato | 862.00 mi (1,387.25 km) |
| Merthyr Tudful to San Pancrazio Salentino | 1,274.94 mi (2,051.81 km) |
| Merthyr Tudful to San Pietro in Casale | 833.90 mi (1,342.03 km) |
| Merthyr Tudful to San Pietro Vernotico | 1,279.78 mi (2,059.61 km) |
| Merthyr Tudful to San Prisco | 1,112.89 mi (1,791.02 km) |
| Merthyr Tudful to San Remo | 752.03 mi (1,210.28 km) |
| Merthyr Tudful to San Salvo | 1,081.22 mi (1,740.06 km) |
| Merthyr Tudful to San Sebastiano al Vesuvio | 1,128.58 mi (1,816.27 km) |
| Merthyr Tudful to San Severino Marche | 967.61 mi (1,557.21 km) |
| Merthyr Tudful to San Severo | 1,121.96 mi (1,805.62 km) |
| Merthyr Tudful to San Valentino Torio | 1,139.06 mi (1,833.13 km) |
