| Sliven to Superior (Colorado) | 5,973.85 mi (9,613.99 km) |
| Sliven to Superior (Wisconsin) | 5,204.16 mi (8,375.28 km) |
| Sliven to Surprise (Arizona) | 6,552.05 mi (10,544.50 km) |
| Sliven to Susanville (California) | 6,335.19 mi (10,195.50 km) |
| Sliven to Sussex (Wisconsin) | 5,256.55 mi (8,459.60 km) |
| Sliven to Suwanee (Georgia) | 5,553.06 mi (8,936.79 km) |
| Sliven to Swansea (Illinois) | 5,551.74 mi (8,934.66 km) |
| Sliven to Sweetwater (Florida) | 5,803.91 mi (9,340.48 km) |
| Sliven to Sweetwater (Texas) | 6,246.36 mi (10,052.54 km) |
| Sliven to Sycamore (Illinois) | 5,329.84 mi (8,577.55 km) |
| Sliven to Sylacauga (Alabama) | 5,683.86 mi (9,147.29 km) |
| Sliven to Sylvania (Ohio) | 5,164.84 mi (8,312.01 km) |
| Sliven to Syosset (New York) | 4,810.92 mi (7,742.43 km) |
| Sliven to Syracuse (New York) | 4,817.08 mi (7,752.34 km) |
| Sliven to Syracuse (Utah) | 6,094.93 mi (9,808.83 km) |
