| Obidos to Silver Firs (Washington) | 5,145.78 mi (8,281.33 km) |
| Obidos to Silver Spring (Maryland) | 3,542.99 mi (5,701.90 km) |
| Obidos to Silver Springs Shores (Florida) | 4,110.53 mi (6,615.26 km) |
| Obidos to Silverdale (Washington) | 5,173.23 mi (8,325.51 km) |
| Obidos to Silverton (Oregon) | 5,302.21 mi (8,533.09 km) |
| Obidos to Simi Valley (California) | 5,651.14 mi (9,094.63 km) |
| Obidos to Simpsonville (South Carolina) | 3,931.81 mi (6,327.63 km) |
| Obidos to Sioux City (Iowa) | 4,344.25 mi (6,991.40 km) |
| Obidos to Sioux Falls (South Dakota) | 4,323.54 mi (6,958.07 km) |
| Obidos to Skokie (Illinois) | 3,968.08 mi (6,386.00 km) |
| Obidos to Sleepy Hollow (New York) | 3,334.59 mi (5,366.50 km) |
| Obidos to Slidell (Louisiana) | 4,464.88 mi (7,185.53 km) |
| Obidos to Smithfield (North Carolina) | 3,710.57 mi (5,971.59 km) |
| Obidos to Smithfield (Utah) | 5,026.15 mi (8,088.80 km) |
| Obidos to Smithville (Missouri) | 4,369.69 mi (7,032.34 km) |
