| Douarnenez to Silver Firs (Washington) | 4,833.47 mi (7,778.72 km) |
| Douarnenez to Silver Spring (Maryland) | 3,556.76 mi (5,724.05 km) |
| Douarnenez to Silver Springs Shores (Florida) | 4,206.80 mi (6,770.20 km) |
| Douarnenez to Silverdale (Washington) | 4,859.60 mi (7,820.78 km) |
| Douarnenez to Silverton (Oregon) | 5,006.88 mi (8,057.80 km) |
| Douarnenez to Simi Valley (California) | 5,458.29 mi (8,784.27 km) |
| Douarnenez to Simpsonville (South Carolina) | 3,965.84 mi (6,382.40 km) |
| Douarnenez to Sioux City (Iowa) | 4,213.61 mi (6,781.16 km) |
| Douarnenez to Sioux Falls (South Dakota) | 4,180.35 mi (6,727.62 km) |
| Douarnenez to Skokie (Illinois) | 3,887.96 mi (6,257.06 km) |
| Douarnenez to Sleepy Hollow (New York) | 3,337.83 mi (5,371.73 km) |
| Douarnenez to Slidell (Louisiana) | 4,497.77 mi (7,238.47 km) |
| Douarnenez to Smithfield (North Carolina) | 3,759.29 mi (6,049.99 km) |
| Douarnenez to Smithfield (Utah) | 4,816.51 mi (7,751.42 km) |
| Douarnenez to Smithville (Missouri) | 4,280.98 mi (6,889.58 km) |
