| Darby to Roy (Utah) | 1,918.94 mi (3,088.24 km) |
| Darby to Royal Kunia (Hawaii) | 4,911.94 mi (7,905.00 km) |
| Darby to Royal Oak (Michigan) | 447.26 mi (719.80 km) |
| Darby to Royal Palm Beach (Florida) | 956.68 mi (1,539.63 km) |
| Darby to Royse City (Texas) | 1,260.91 mi (2,029.23 km) |
| Darby to Ruskin (Florida) | 937.87 mi (1,509.36 km) |
| Darby to Russellville (Alabama) | 780.38 mi (1,255.89 km) |
| Darby to Russellville (Arkansas) | 1,027.81 mi (1,654.10 km) |
| Darby to Ruston (Louisiana) | 1,092.03 mi (1,757.46 km) |
| Darby to Rutherford (New Jersey) | 86.94 mi (139.92 km) |
| Darby to Rutland (Vermont) | 280.64 mi (451.65 km) |
| Darby to Sabana Grande (Puerto Rico) | 1,588.07 mi (2,555.75 km) |
| Darby to Sachse (Texas) | 1,274.39 mi (2,050.93 km) |
| Darby to Saco (Maine) | 351.61 mi (565.86 km) |
| Darby to Sacramento (California) | 2,446.36 mi (3,937.04 km) |
