| South Houston to Sacile | 5,534.66 mi (8,907.18 km) |
| South Houston to Sala Consilina | 5,879.77 mi (9,462.58 km) |
| South Houston to Salemi | 5,857.78 mi (9,427.18 km) |
| South Houston to Salerno | 5,832.53 mi (9,386.55 km) |
| South Houston to Salo | 5,468.01 mi (8,799.91 km) |
| South Houston to Salsomaggiore Terme | 5,473.38 mi (8,808.56 km) |
| South Houston to Saluzzo | 5,374.21 mi (8,648.96 km) |
| South Houston to Salzano | 5,535.32 mi (8,908.23 km) |
| South Houston to Samarate | 5,394.96 mi (8,682.34 km) |
| South Houston to San Benedetto del Tronto | 5,706.54 mi (9,183.80 km) |
| South Houston to San Biagio di Callalta | 5,540.35 mi (8,916.34 km) |
| South Houston to San Bonifacio | 5,506.15 mi (8,861.29 km) |
| South Houston to San Casciano in Val di Pesa | 5,566.33 mi (8,958.14 km) |
| South Houston to San Cataldo | 5,924.24 mi (9,534.14 km) |
| South Houston to San Cesareo | 5,704.22 mi (9,180.05 km) |
