| Darby to Rancho Cordova (California) | 2,435.10 mi (3,918.91 km) |
| Darby to Rancho Cucamonga (California) | 2,345.60 mi (3,774.88 km) |
| Darby to Rancho Mirage (California) | 2,294.91 mi (3,693.30 km) |
| Darby to Rancho Palos Verdes (California) | 2,397.58 mi (3,858.53 km) |
| Darby to Rancho San Diego (California) | 2,348.63 mi (3,779.76 km) |
| Darby to Rancho Santa Margarita (California) | 2,360.47 mi (3,798.82 km) |
| Darby to Randallstown (Maryland) | 90.34 mi (145.39 km) |
| Darby to Rantoul (Illinois) | 681.24 mi (1,096.36 km) |
| Darby to Rapid City (South Dakota) | 1,456.67 mi (2,344.28 km) |
| Darby to Ravenna (Ohio) | 325.46 mi (523.77 km) |
| Darby to Raymondville (Texas) | 1,591.59 mi (2,561.41 km) |
| Darby to Raymore (Missouri) | 1,026.44 mi (1,651.89 km) |
| Darby to Raytown (Missouri) | 1,024.44 mi (1,648.67 km) |
| Darby to Reading (Ohio) | 490.65 mi (789.62 km) |
| Darby to Reading (Pennsylvania) | 45.55 mi (73.31 km) |
