| Drogheda to Red Bank (New Jersey) | 3,187.85 mi (5,130.35 km) |
| Drogheda to Red Bank (Tennessee) | 3,882.18 mi (6,247.77 km) |
| Drogheda to Red Bluff (California) | 4,918.18 mi (7,915.04 km) |
| Drogheda to Red Hill (South Carolina) | 3,696.70 mi (5,949.27 km) |
| Drogheda to Red Oak (Texas) | 4,460.60 mi (7,178.65 km) |
| Drogheda to Red Wing (Minnesota) | 3,703.64 mi (5,960.43 km) |
| Drogheda to Redan (Georgia) | 3,905.32 mi (6,285.01 km) |
| Drogheda to Redding (California) | 4,899.20 mi (7,884.51 km) |
| Drogheda to Redland (Maryland) | 3,366.13 mi (5,417.26 km) |
| Drogheda to Redlands (California) | 5,106.95 mi (8,218.84 km) |
| Drogheda to Redmond (Oregon) | 4,655.48 mi (7,492.28 km) |
| Drogheda to Redmond (Washington) | 4,490.38 mi (7,226.56 km) |
| Drogheda to Redondo Beach (California) | 5,157.44 mi (8,300.11 km) |
| Drogheda to Redwood City (California) | 5,070.72 mi (8,160.53 km) |
| Drogheda to Reedley (California) | 5,036.12 mi (8,104.85 km) |
