| Houston to Somersworth (New Hampshire) | 1,638.37 mi (2,636.71 km) |
| Houston to Somerton (Arizona) | 1,156.13 mi (1,860.60 km) |
| Houston to Somerville (Massachusetts) | 1,602.63 mi (2,579.19 km) |
| Houston to Somerville (New Jersey) | 1,384.57 mi (2,228.26 km) |
| Houston to Sonoma (California) | 1,650.15 mi (2,655.66 km) |
| Houston to Soquel (California) | 1,604.93 mi (2,582.88 km) |
| Houston to South Bend (Indiana) | 966.42 mi (1,555.30 km) |
| Houston to South Bradenton (Florida) | 792.66 mi (1,275.67 km) |
| Houston to South Burlington (Vermont) | 1,578.17 mi (2,539.81 km) |
| Houston to South Charleston (West Virginia) | 978.97 mi (1,575.50 km) |
| Houston to South Daytona (Florida) | 865.64 mi (1,393.11 km) |
| Houston to South El Monte (California) | 1,358.15 mi (2,185.73 km) |
| Houston to South Elgin (Illinois) | 930.77 mi (1,497.93 km) |
| Houston to South Euclid (Ohio) | 1,121.23 mi (1,804.44 km) |
| Houston to South Farmingdale (New York) | 1,444.00 mi (2,323.90 km) |
