| Westerlo to Smyrna (Delaware) | 3,804.02 mi (6,121.98 km) |
| Westerlo to Smyrna (Georgia) | 4,420.51 mi (7,114.12 km) |
| Westerlo to Smyrna (Tennessee) | 4,396.33 mi (7,075.20 km) |
| Westerlo to Snellville (Georgia) | 4,400.26 mi (7,081.54 km) |
| Westerlo to Snoqualmie (Washington) | 4,928.57 mi (7,931.77 km) |
| Westerlo to Snyder (Texas) | 5,110.07 mi (8,223.86 km) |
| Westerlo to Socastee (South Carolina) | 4,205.35 mi (6,767.86 km) |
| Westerlo to Socorro (Texas) | 5,360.85 mi (8,627.45 km) |
| Westerlo to Soddy-Daisy (Tennessee) | 4,378.03 mi (7,045.75 km) |
| Westerlo to Solana Beach (California) | 5,649.80 mi (9,092.47 km) |
| Westerlo to Soledad (California) | 5,569.00 mi (8,962.44 km) |
| Westerlo to Solon (Ohio) | 3,939.67 mi (6,340.29 km) |
| Westerlo to Somers Point (New Jersey) | 3,762.41 mi (6,055.01 km) |
| Westerlo to Somerset (Kentucky) | 4,266.67 mi (6,866.54 km) |
| Westerlo to Somerset (New Jersey) | 3,704.92 mi (5,962.50 km) |
