| Anacortes to Silver Firs (Washington) | 48.46 mi (77.99 km) |
| Anacortes to Silver Spring (Maryland) | 2,331.08 mi (3,751.52 km) |
| Anacortes to Silver Springs Shores (Florida) | 2,521.76 mi (4,058.38 km) |
| Anacortes to Silverdale (Washington) | 56.81 mi (91.43 km) |
| Anacortes to Silverton (Oregon) | 240.88 mi (387.66 km) |
| Anacortes to Simi Valley (California) | 1,002.64 mi (1,613.60 km) |
| Anacortes to Simpsonville (South Carolina) | 2,258.83 mi (3,635.23 km) |
| Anacortes to Sioux City (Iowa) | 1,328.94 mi (2,138.72 km) |
| Anacortes to Sioux Falls (South Dakota) | 1,281.97 mi (2,063.14 km) |
| Anacortes to Skokie (Illinois) | 1,737.80 mi (2,796.72 km) |
| Anacortes to Sleepy Hollow (New York) | 2,402.13 mi (3,865.85 km) |
| Anacortes to Slidell (Louisiana) | 2,131.77 mi (3,430.76 km) |
| Anacortes to Smithfield (North Carolina) | 2,403.94 mi (3,868.76 km) |
| Anacortes to Smithfield (Utah) | 697.58 mi (1,122.64 km) |
| Anacortes to Smithville (Missouri) | 1,519.45 mi (2,445.32 km) |
