| Mountain Ash to Storm Lake (Iowa) | 4,067.28 mi (6,545.65 km) |
| Mountain Ash to Storrs (Connecticut) | 3,205.95 mi (5,159.48 km) |
| Mountain Ash to Stoughton (Wisconsin) | 3,830.75 mi (6,164.99 km) |
| Mountain Ash to Stow (Ohio) | 3,605.50 mi (5,802.50 km) |
| Mountain Ash to Streamwood (Illinois) | 3,832.05 mi (6,167.08 km) |
| Mountain Ash to Streator (Illinois) | 3,898.44 mi (6,273.93 km) |
| Mountain Ash to Streetsboro (Ohio) | 3,599.17 mi (5,792.30 km) |
| Mountain Ash to Strongsville (Ohio) | 3,615.30 mi (5,818.26 km) |
| Mountain Ash to Stuart (Florida) | 4,218.81 mi (6,789.52 km) |
| Mountain Ash to Stuarts Draft (Virginia) | 3,649.87 mi (5,873.90 km) |
| Mountain Ash to Sturgis (Michigan) | 3,735.11 mi (6,011.09 km) |
| Mountain Ash to Suamico (Wisconsin) | 3,710.00 mi (5,970.68 km) |
| Mountain Ash to Sudley (Virginia) | 3,552.03 mi (5,716.44 km) |
| Mountain Ash to Suffern (New York) | 3,312.84 mi (5,331.50 km) |
| Mountain Ash to Suffolk (Virginia) | 3,611.11 mi (5,811.51 km) |
