| Sliven to Red Bank (New Jersey) | 4,854.38 mi (7,812.36 km) |
| Sliven to Red Bank (Tennessee) | 5,549.04 mi (8,930.32 km) |
| Sliven to Red Bluff (California) | 6,384.56 mi (10,274.95 km) |
| Sliven to Red Hill (South Carolina) | 5,359.64 mi (8,625.51 km) |
| Sliven to Red Oak (Texas) | 6,116.27 mi (9,843.19 km) |
| Sliven to Red Wing (Minnesota) | 5,330.00 mi (8,577.81 km) |
| Sliven to Redan (Georgia) | 5,572.30 mi (8,967.75 km) |
| Sliven to Redding (California) | 6,361.75 mi (10,238.25 km) |
| Sliven to Redland (Maryland) | 5,033.09 mi (8,099.98 km) |
| Sliven to Redlands (California) | 6,654.85 mi (10,709.95 km) |
| Sliven to Redmond (Oregon) | 6,103.28 mi (9,822.28 km) |
| Sliven to Redmond (Washington) | 5,903.59 mi (9,500.90 km) |
| Sliven to Redondo Beach (California) | 6,696.87 mi (10,777.57 km) |
| Sliven to Redwood City (California) | 6,554.61 mi (10,548.63 km) |
| Sliven to Reedley (California) | 6,550.56 mi (10,542.11 km) |
