| Opatija to Silver Firs (Washington) | 5,479.48 mi (8,818.37 km) |
| Opatija to Silver Spring (Maryland) | 4,436.75 mi (7,140.25 km) |
| Opatija to Silver Springs Shores (Florida) | 5,101.24 mi (8,209.66 km) |
| Opatija to Silverdale (Washington) | 5,503.49 mi (8,857.01 km) |
| Opatija to Silverton (Oregon) | 5,666.65 mi (9,119.58 km) |
| Opatija to Simi Valley (California) | 6,203.12 mi (9,982.96 km) |
| Opatija to Simpsonville (South Carolina) | 4,848.42 mi (7,802.78 km) |
| Opatija to Sioux City (Iowa) | 5,023.33 mi (8,084.26 km) |
| Opatija to Sioux Falls (South Dakota) | 4,982.94 mi (8,019.27 km) |
| Opatija to Skokie (Illinois) | 4,729.44 mi (7,611.30 km) |
| Opatija to Sleepy Hollow (New York) | 4,216.69 mi (6,786.10 km) |
| Opatija to Slidell (Louisiana) | 5,376.77 mi (8,653.08 km) |
| Opatija to Smithfield (North Carolina) | 4,646.64 mi (7,478.05 km) |
| Opatija to Smithfield (Utah) | 5,559.93 mi (8,947.84 km) |
| Opatija to Smithville (Missouri) | 5,113.07 mi (8,228.69 km) |
