| Comacchio to Ridgeland (Mississippi) | 5,222.17 mi (8,404.27 km) |
| Comacchio to Ridgewood (New Jersey) | 4,164.01 mi (6,701.32 km) |
| Comacchio to Rifle (Colorado) | 5,525.94 mi (8,893.14 km) |
| Comacchio to Rincon (Georgia) | 4,845.14 mi (7,797.49 km) |
| Comacchio to Ringwood (New Jersey) | 4,165.95 mi (6,704.45 km) |
| Comacchio to Río Grande (Puerto Rico) | 4,753.00 mi (7,649.21 km) |
| Comacchio to Rio Grande City (Texas) | 5,884.31 mi (9,469.88 km) |
| Comacchio to Rio Linda (California) | 5,993.11 mi (9,644.98 km) |
| Comacchio to Rio Rancho (New Mexico) | 5,717.87 mi (9,202.03 km) |
| Comacchio to Rio Rico (Arizona) | 6,076.41 mi (9,779.04 km) |
| Comacchio to Ripon (California) | 6,040.35 mi (9,721.01 km) |
| Comacchio to River Edge (New Jersey) | 4,163.05 mi (6,699.79 km) |
| Comacchio to River Falls (Wisconsin) | 4,729.08 mi (7,610.72 km) |
| Comacchio to River Forest (Illinois) | 4,684.69 mi (7,539.28 km) |
| Comacchio to River Grove (Illinois) | 4,684.08 mi (7,538.30 km) |
