| Comacchio to University Place (Washington) | 5,516.24 mi (8,877.53 km) |
| Comacchio to Upland (California) | 6,149.09 mi (9,896.00 km) |
| Comacchio to Upper Arlington (Ohio) | 4,578.28 mi (7,368.03 km) |
| Comacchio to Upper Grand Lagoon (Florida) | 5,141.14 mi (8,273.86 km) |
| Comacchio to Upper Montclair (New Jersey) | 4,173.29 mi (6,716.26 km) |
| Comacchio to Urbana (Illinois) | 4,780.77 mi (7,693.91 km) |
| Comacchio to Urbana (Maryland) | 4,369.13 mi (7,031.43 km) |
| Comacchio to Urbana (Ohio) | 4,602.61 mi (7,407.18 km) |
| Comacchio to Urbandale (Iowa) | 4,923.67 mi (7,923.88 km) |
| Comacchio to Utica (New York) | 4,127.12 mi (6,641.96 km) |
| Comacchio to Uvalde (Texas) | 5,776.84 mi (9,296.92 km) |
| Comacchio to Vacaville (California) | 6,027.18 mi (9,699.82 km) |
| Comacchio to Vadnais Heights (Minnesota) | 4,736.17 mi (7,622.13 km) |
| Comacchio to Vail (Arizona) | 6,036.91 mi (9,715.47 km) |
| Comacchio to Valdosta (Georgia) | 5,001.35 mi (8,048.90 km) |
