| Houston to San Maurizio Canavese | 5,361.10 mi (8,627.86 km) |
| Houston to San Mauro Pascoli | 5,601.81 mi (9,015.24 km) |
| Houston to San Mauro Torinese | 5,370.21 mi (8,642.52 km) |
| Houston to San Michele al Tagliamento | 5,562.34 mi (8,951.73 km) |
| Houston to San Miniato | 5,551.80 mi (8,934.75 km) |
| Houston to San Pancrazio Salentino | 5,974.63 mi (9,615.24 km) |
| Houston to San Pietro in Casale | 5,537.16 mi (8,911.19 km) |
| Houston to San Pietro Vernotico | 5,980.96 mi (9,625.42 km) |
| Houston to San Prisco | 5,797.05 mi (9,329.45 km) |
| Houston to San Remo | 5,415.90 mi (8,716.04 km) |
| Houston to San Salvo | 5,778.11 mi (9,298.96 km) |
| Houston to San Sebastiano al Vesuvio | 5,810.47 mi (9,351.05 km) |
| Houston to San Severino Marche | 5,666.74 mi (9,119.73 km) |
| Houston to San Severo | 5,819.30 mi (9,365.25 km) |
| Houston to San Valentino Torio | 5,822.29 mi (9,370.07 km) |
