| Seal Beach to Reading (Pennsylvania) | 2,345.53 mi (3,774.76 km) |
| Seal Beach to Red Bank (New Jersey) | 2,443.28 mi (3,932.08 km) |
| Seal Beach to Red Bank (Tennessee) | 1,861.71 mi (2,996.14 km) |
| Seal Beach to Red Bluff (California) | 499.56 mi (803.96 km) |
| Seal Beach to Red Hill (South Carolina) | 2,229.72 mi (3,588.39 km) |
| Seal Beach to Red Oak (Texas) | 1,232.21 mi (1,983.05 km) |
| Seal Beach to Red Wing (Minnesota) | 1,546.58 mi (2,488.98 km) |
| Seal Beach to Redan (Georgia) | 1,939.02 mi (3,120.55 km) |
| Seal Beach to Redding (California) | 526.75 mi (847.72 km) |
| Seal Beach to Redland (Maryland) | 2,285.26 mi (3,677.77 km) |
| Seal Beach to Redlands (California) | 55.55 mi (89.40 km) |
| Seal Beach to Redmond (Oregon) | 744.76 mi (1,198.57 km) |
| Seal Beach to Redmond (Washington) | 984.61 mi (1,584.58 km) |
| Seal Beach to Redondo Beach (California) | 18.92 mi (30.45 km) |
| Seal Beach to Redwood City (California) | 348.48 mi (560.82 km) |
