| Smolyan to Superior (Colorado) | 5,986.87 mi (9,634.94 km) |
| Smolyan to Superior (Wisconsin) | 5,210.72 mi (8,385.84 km) |
| Smolyan to Surprise (Arizona) | 6,568.25 mi (10,570.58 km) |
| Smolyan to Susanville (California) | 6,368.47 mi (10,249.06 km) |
| Smolyan to Sussex (Wisconsin) | 5,254.09 mi (8,455.64 km) |
| Smolyan to Suwanee (Georgia) | 5,533.17 mi (8,904.78 km) |
| Smolyan to Swansea (Illinois) | 5,544.86 mi (8,923.59 km) |
| Smolyan to Sweetwater (Florida) | 5,768.30 mi (9,283.19 km) |
| Smolyan to Sweetwater (Texas) | 6,244.68 mi (10,049.85 km) |
| Smolyan to Sycamore (Illinois) | 5,326.27 mi (8,571.80 km) |
| Smolyan to Sylacauga (Alabama) | 5,665.32 mi (9,117.45 km) |
| Smolyan to Sylvania (Ohio) | 5,155.56 mi (8,297.07 km) |
| Smolyan to Syosset (New York) | 4,789.93 mi (7,708.65 km) |
| Smolyan to Syracuse (New York) | 4,802.25 mi (7,728.47 km) |
| Smolyan to Syracuse (Utah) | 6,117.80 mi (9,845.65 km) |
