| Comacchio to Rockville (Maryland) | 4,371.36 mi (7,035.03 km) |
| Comacchio to Rockville Centre (New York) | 4,156.40 mi (6,689.08 km) |
| Comacchio to Rockwall (Texas) | 5,454.71 mi (8,778.51 km) |
| Comacchio to Rocky Mount (North Carolina) | 4,531.85 mi (7,293.30 km) |
| Comacchio to Rocky Point (New York) | 4,115.57 mi (6,623.37 km) |
| Comacchio to Rocky River (Ohio) | 4,466.10 mi (7,187.50 km) |
| Comacchio to Roessleville (New York) | 4,083.09 mi (6,571.10 km) |
| Comacchio to Rogers (Arkansas) | 5,195.63 mi (8,361.55 km) |
| Comacchio to Rogers (Minnesota) | 4,748.16 mi (7,641.43 km) |
| Comacchio to Rohnert Park (California) | 6,047.87 mi (9,733.11 km) |
| Comacchio to Rolla (Missouri) | 5,022.74 mi (8,083.33 km) |
| Comacchio to Rolling Meadows (Illinois) | 4,684.55 mi (7,539.05 km) |
| Comacchio to Roma (Texas) | 5,890.06 mi (9,479.14 km) |
| Comacchio to Rome (Georgia) | 4,926.03 mi (7,927.68 km) |
| Comacchio to Rome (New York) | 4,132.98 mi (6,651.39 km) |
