| Castel Gandolfo to River Ridge (Louisiana) | 5,467.65 mi (8,799.32 km) |
| Castel Gandolfo to Riverbank (California) | 6,216.43 mi (10,004.38 km) |
| Castel Gandolfo to Riverdale (Georgia) | 5,046.65 mi (8,121.80 km) |
| Castel Gandolfo to Riverdale (Illinois) | 4,832.94 mi (7,777.87 km) |
| Castel Gandolfo to Riverside (California) | 6,323.43 mi (10,176.58 km) |
| Castel Gandolfo to Riverside (Ohio) | 4,767.14 mi (7,671.97 km) |
| Castel Gandolfo to Riverton (Utah) | 5,780.51 mi (9,302.84 km) |
| Castel Gandolfo to Riverton (Wyoming) | 5,529.76 mi (8,899.29 km) |
| Castel Gandolfo to Riverview (Florida) | 5,202.60 mi (8,372.77 km) |
| Castel Gandolfo to Riverview (Michigan) | 4,629.41 mi (7,450.31 km) |
| Castel Gandolfo to Riviera Beach (Florida) | 5,142.92 mi (8,276.73 km) |
| Castel Gandolfo to Riviera Beach (Maryland) | 4,464.04 mi (7,184.18 km) |
| Castel Gandolfo to Roanoke (Virginia) | 4,691.29 mi (7,549.89 km) |
| Castel Gandolfo to Roanoke Rapids (North Carolina) | 4,622.10 mi (7,438.55 km) |
| Castel Gandolfo to Robbinsdale (Minnesota) | 4,904.59 mi (7,893.17 km) |
