| Louvain-la-Neuve to Silver Firs (Washington) | 4,930.02 mi (7,934.11 km) |
| Louvain-la-Neuve to Silver Spring (Maryland) | 3,868.14 mi (6,225.17 km) |
| Louvain-la-Neuve to Silver Springs Shores (Florida) | 4,546.10 mi (7,316.24 km) |
| Louvain-la-Neuve to Silverdale (Washington) | 4,954.77 mi (7,973.93 km) |
| Louvain-la-Neuve to Silverton (Oregon) | 5,113.49 mi (8,229.37 km) |
| Louvain-la-Neuve to Simi Valley (California) | 5,629.15 mi (9,059.24 km) |
| Louvain-la-Neuve to Simpsonville (South Carolina) | 4,280.92 mi (6,889.48 km) |
| Louvain-la-Neuve to Sioux City (Iowa) | 4,440.25 mi (7,145.89 km) |
| Louvain-la-Neuve to Sioux Falls (South Dakota) | 4,400.13 mi (7,081.33 km) |
| Louvain-la-Neuve to Skokie (Illinois) | 4,147.82 mi (6,675.26 km) |
| Louvain-la-Neuve to Sleepy Hollow (New York) | 3,647.76 mi (5,870.50 km) |
| Louvain-la-Neuve to Slidell (Louisiana) | 4,806.10 mi (7,734.67 km) |
| Louvain-la-Neuve to Smithfield (North Carolina) | 4,083.49 mi (6,571.75 km) |
| Louvain-la-Neuve to Smithfield (Utah) | 4,985.36 mi (8,023.16 km) |
| Louvain-la-Neuve to Smithville (Missouri) | 4,530.35 mi (7,290.90 km) |
