| Seymour to Smyrna (Delaware) | 551.42 mi (887.42 km) |
| Seymour to Smyrna (Georgia) | 359.49 mi (578.55 km) |
| Seymour to Smyrna (Tennessee) | 208.75 mi (335.95 km) |
| Seymour to Snellville (Georgia) | 367.08 mi (590.76 km) |
| Seymour to Snoqualmie (Washington) | 1,884.82 mi (3,033.33 km) |
| Seymour to Snyder (Texas) | 943.57 mi (1,518.53 km) |
| Seymour to Socastee (South Carolina) | 527.81 mi (849.43 km) |
| Seymour to Socorro (Texas) | 1,251.16 mi (2,013.55 km) |
| Seymour to Soddy-Daisy (Tennessee) | 258.03 mi (415.26 km) |
| Seymour to Solana Beach (California) | 1,792.04 mi (2,884.02 km) |
| Seymour to Soledad (California) | 1,933.69 mi (3,111.98 km) |
| Seymour to Solon (Ohio) | 289.12 mi (465.29 km) |
| Seymour to Somers Point (New Jersey) | 604.94 mi (973.56 km) |
| Seymour to Somerset (Kentucky) | 146.44 mi (235.68 km) |
| Seymour to Somerset (New Jersey) | 614.33 mi (988.67 km) |
