| Monthey to Silver Firs (Washington) | 5,246.38 mi (8,443.23 km) |
| Monthey to Silver Spring (Maryland) | 4,094.80 mi (6,589.94 km) |
| Monthey to Silver Springs Shores (Florida) | 4,750.48 mi (7,645.16 km) |
| Monthey to Silverdale (Washington) | 5,271.39 mi (8,483.48 km) |
| Monthey to Silverton (Oregon) | 5,428.18 mi (8,735.82 km) |
| Monthey to Simi Valley (California) | 5,928.19 mi (9,540.50 km) |
| Monthey to Simpsonville (South Carolina) | 4,505.15 mi (7,250.34 km) |
| Monthey to Sioux City (Iowa) | 4,716.54 mi (7,590.54 km) |
| Monthey to Sioux Falls (South Dakota) | 4,679.38 mi (7,530.74 km) |
| Monthey to Skokie (Illinois) | 4,407.30 mi (7,092.87 km) |
| Monthey to Sleepy Hollow (New York) | 3,875.27 mi (6,236.65 km) |
| Monthey to Slidell (Louisiana) | 5,035.73 mi (8,104.22 km) |
| Monthey to Smithfield (North Carolina) | 4,300.49 mi (6,920.97 km) |
| Monthey to Smithfield (Utah) | 5,284.27 mi (8,504.22 km) |
| Monthey to Smithville (Missouri) | 4,795.86 mi (7,718.19 km) |
