| Sliven to Springfield (Missouri) | 5,740.74 mi (9,238.83 km) |
| Sliven to Springfield (Ohio) | 5,254.25 mi (8,455.90 km) |
| Sliven to Springfield (Oregon) | 6,150.87 mi (9,898.87 km) |
| Sliven to Springfield (Tennessee) | 5,540.67 mi (8,916.85 km) |
| Sliven to Springfield (Virginia) | 5,050.80 mi (8,128.47 km) |
| Sliven to Springville (Utah) | 6,138.90 mi (9,879.60 km) |
| Sliven to St. Albans (West Virginia) | 5,253.45 mi (8,454.61 km) |
| Sliven to St. Andrews (South Carolina) | 5,433.10 mi (8,743.74 km) |
| Sliven to St. Ann (Missouri) | 5,557.13 mi (8,943.34 km) |
| Sliven to St. Augustine (Florida) | 5,643.27 mi (9,081.97 km) |
| Sliven to St. Charles (Illinois) | 5,320.63 mi (8,562.73 km) |
| Sliven to St. Charles (Missouri) | 5,558.19 mi (8,945.05 km) |
| Sliven to St. Clair Shores (Michigan) | 5,097.30 mi (8,203.31 km) |
| Sliven to St. Cloud (Florida) | 5,723.07 mi (9,210.39 km) |
| Sliven to St. Cloud (Minnesota) | 5,330.39 mi (8,578.44 km) |
