| Duffel to Red Bank (New Jersey) | 3,677.93 mi (5,919.06 km) |
| Duffel to Red Bank (Tennessee) | 4,373.68 mi (7,038.76 km) |
| Duffel to Red Bluff (California) | 5,360.95 mi (8,627.62 km) |
| Duffel to Red Hill (South Carolina) | 4,184.26 mi (6,733.92 km) |
| Duffel to Red Oak (Texas) | 4,951.41 mi (7,968.53 km) |
| Duffel to Red Wing (Minnesota) | 4,187.40 mi (6,738.96 km) |
| Duffel to Redan (Georgia) | 4,395.95 mi (7,074.61 km) |
| Duffel to Redding (California) | 5,340.84 mi (8,595.25 km) |
| Duffel to Redland (Maryland) | 3,856.75 mi (6,206.85 km) |
| Duffel to Redlands (California) | 5,572.40 mi (8,967.90 km) |
| Duffel to Redmond (Oregon) | 5,091.87 mi (8,194.57 km) |
| Duffel to Redmond (Washington) | 4,915.95 mi (7,911.45 km) |
| Duffel to Redondo Beach (California) | 5,620.80 mi (9,045.80 km) |
| Duffel to Redwood City (California) | 5,518.92 mi (8,881.84 km) |
| Duffel to Reedley (California) | 5,492.48 mi (8,839.30 km) |
