| Ashtabula to Smyrna (Delaware) | 325.65 mi (524.09 km) |
| Ashtabula to Smyrna (Georgia) | 589.73 mi (949.08 km) |
| Ashtabula to Smyrna (Tennessee) | 511.24 mi (822.76 km) |
| Ashtabula to Snellville (Georgia) | 581.22 mi (935.38 km) |
| Ashtabula to Snoqualmie (Washington) | 2,028.35 mi (3,264.32 km) |
| Ashtabula to Snyder (Texas) | 1,269.46 mi (2,043.00 km) |
| Ashtabula to Socastee (South Carolina) | 574.44 mi (924.48 km) |
| Ashtabula to Socorro (Texas) | 1,568.83 mi (2,524.79 km) |
| Ashtabula to Soddy-Daisy (Tennessee) | 514.89 mi (828.63 km) |
| Ashtabula to Solana Beach (California) | 2,074.75 mi (3,338.99 km) |
| Ashtabula to Soledad (California) | 2,183.57 mi (3,514.12 km) |
| Ashtabula to Solon (Ohio) | 47.57 mi (76.55 km) |
| Ashtabula to Somers Point (New Jersey) | 369.86 mi (595.23 km) |
| Ashtabula to Somerset (Kentucky) | 388.73 mi (625.61 km) |
| Ashtabula to Somerset (New Jersey) | 340.77 mi (548.41 km) |
