| Sedro-Woolley to Southern Pines (North Carolina) | 2,351.08 mi (3,783.69 km) |
| Sedro-Woolley to Southfield (Michigan) | 1,911.09 mi (3,075.60 km) |
| Sedro-Woolley to Southgate (Michigan) | 1,921.94 mi (3,093.07 km) |
| Sedro-Woolley to Southlake (Texas) | 1,683.34 mi (2,709.08 km) |
| Sedro-Woolley to Spanaway (Washington) | 98.05 mi (157.80 km) |
| Sedro-Woolley to Spanish Fork (Utah) | 780.30 mi (1,255.77 km) |
| Sedro-Woolley to Spanish Lake (Missouri) | 1,720.31 mi (2,768.58 km) |
| Sedro-Woolley to Spanish Springs (Nevada) | 624.76 mi (1,005.46 km) |
| Sedro-Woolley to Sparks (Nevada) | 629.95 mi (1,013.80 km) |
| Sedro-Woolley to Spartanburg (South Carolina) | 2,247.14 mi (3,616.42 km) |
| Sedro-Woolley to Spearfish (South Dakota) | 916.24 mi (1,474.54 km) |
| Sedro-Woolley to Speedway (Indiana) | 1,862.80 mi (2,997.89 km) |
| Sedro-Woolley to Spencer (Iowa) | 1,347.37 mi (2,168.38 km) |
| Sedro-Woolley to Spokane (Washington) | 229.00 mi (368.53 km) |
| Sedro-Woolley to Spokane Valley (Washington) | 237.94 mi (382.93 km) |
