| Montrose to Silver Firs (Washington) | 4,425.86 mi (7,122.74 km) |
| Montrose to Silver Spring (Maryland) | 3,470.70 mi (5,585.55 km) |
| Montrose to Silver Springs Shores (Florida) | 4,174.43 mi (6,718.10 km) |
| Montrose to Silverdale (Washington) | 4,450.51 mi (7,162.40 km) |
| Montrose to Silverton (Oregon) | 4,610.03 mi (7,419.13 km) |
| Montrose to Simi Valley (California) | 5,137.04 mi (8,267.26 km) |
| Montrose to Simpsonville (South Carolina) | 3,883.68 mi (6,250.19 km) |
| Montrose to Sioux City (Iowa) | 3,974.36 mi (6,396.12 km) |
| Montrose to Sioux Falls (South Dakota) | 3,930.86 mi (6,326.11 km) |
| Montrose to Skokie (Illinois) | 3,703.97 mi (5,960.97 km) |
| Montrose to Sleepy Hollow (New York) | 3,251.01 mi (5,231.99 km) |
| Montrose to Slidell (Louisiana) | 4,398.11 mi (7,078.07 km) |
| Montrose to Smithfield (North Carolina) | 3,697.90 mi (5,951.19 km) |
| Montrose to Smithfield (Utah) | 4,493.98 mi (7,232.36 km) |
| Montrose to Smithville (Missouri) | 4,077.29 mi (6,561.76 km) |
