| Duffel to Romeoville (Illinois) | 4,165.71 mi (6,704.07 km) |
| Duffel to Romulus (Michigan) | 3,959.33 mi (6,371.92 km) |
| Duffel to Ronkonkoma (New York) | 3,619.74 mi (5,825.41 km) |
| Duffel to Roosevelt (New York) | 3,643.75 mi (5,864.06 km) |
| Duffel to Rosamond (California) | 5,557.02 mi (8,943.16 km) |
| Duffel to Rosaryville (Maryland) | 3,860.60 mi (6,213.04 km) |
| Duffel to Roscoe (Illinois) | 4,161.45 mi (6,697.21 km) |
| Duffel to Rose Hill (Virginia) | 3,871.07 mi (6,229.88 km) |
| Duffel to Roseburg (Oregon) | 5,209.60 mi (8,384.04 km) |
| Duffel to Rosedale (California) | 5,556.26 mi (8,941.94 km) |
| Duffel to Rosedale (Maryland) | 3,822.29 mi (6,151.38 km) |
| Duffel to Roselle (Illinois) | 4,148.55 mi (6,676.44 km) |
| Duffel to Roselle (New Jersey) | 3,672.26 mi (5,909.94 km) |
| Duffel to Roselle Park (New Jersey) | 3,671.98 mi (5,909.48 km) |
| Duffel to Rosemead (California) | 5,599.45 mi (9,011.45 km) |
