| Sliven to Ridgeland (Mississippi) | 5,874.32 mi (9,453.81 km) |
| Sliven to Ridgewood (New Jersey) | 4,828.21 mi (7,770.25 km) |
| Sliven to Rifle (Colorado) | 6,071.99 mi (9,771.92 km) |
| Sliven to Rincon (Georgia) | 5,523.47 mi (8,889.17 km) |
| Sliven to Ringwood (New Jersey) | 4,829.22 mi (7,771.88 km) |
| Sliven to Río Grande (Puerto Rico) | 5,472.46 mi (8,807.07 km) |
| Sliven to Rio Grande City (Texas) | 6,527.31 mi (10,504.70 km) |
| Sliven to Rio Linda (California) | 6,462.61 mi (10,400.57 km) |
| Sliven to Rio Rancho (New Mexico) | 6,289.02 mi (10,121.20 km) |
| Sliven to Rio Rico (Arizona) | 6,641.34 mi (10,688.21 km) |
| Sliven to Ripon (California) | 6,516.00 mi (10,486.49 km) |
| Sliven to River Edge (New Jersey) | 4,827.67 mi (7,769.38 km) |
| Sliven to River Falls (Wisconsin) | 5,316.20 mi (8,555.59 km) |
| Sliven to River Forest (Illinois) | 5,304.48 mi (8,536.74 km) |
| Sliven to River Grove (Illinois) | 5,303.67 mi (8,535.43 km) |
