| Harker Heights to Red Bank (New Jersey) | 1,464.16 mi (2,356.35 km) |
| Harker Heights to Red Bank (Tennessee) | 767.09 mi (1,234.51 km) |
| Harker Heights to Red Bluff (California) | 1,511.68 mi (2,432.82 km) |
| Harker Heights to Red Hill (South Carolina) | 1,101.37 mi (1,772.48 km) |
| Harker Heights to Red Oak (Texas) | 113.01 mi (181.87 km) |
| Harker Heights to Red Wing (Minnesota) | 973.60 mi (1,566.86 km) |
| Harker Heights to Redan (Georgia) | 807.29 mi (1,299.21 km) |
| Harker Heights to Redding (California) | 1,526.04 mi (2,455.92 km) |
| Harker Heights to Redland (Maryland) | 1,282.16 mi (2,063.44 km) |
| Harker Heights to Redlands (California) | 1,153.98 mi (1,857.15 km) |
| Harker Heights to Redmond (Oregon) | 1,568.57 mi (2,524.37 km) |
| Harker Heights to Redmond (Washington) | 1,726.39 mi (2,778.35 km) |
| Harker Heights to Redondo Beach (California) | 1,221.91 mi (1,966.47 km) |
| Harker Heights to Redwood City (California) | 1,467.32 mi (2,361.43 km) |
| Harker Heights to Reedley (California) | 1,305.30 mi (2,100.67 km) |
