| Boise to Rancho Cordova (California) | 434.58 mi (699.39 km) |
| Boise to Rancho Cucamonga (California) | 658.62 mi (1,059.95 km) |
| Boise to Rancho Mirage (California) | 679.75 mi (1,093.96 km) |
| Boise to Rancho Palos Verdes (California) | 689.82 mi (1,110.16 km) |
| Boise to Rancho San Diego (California) | 749.77 mi (1,206.63 km) |
| Boise to Rancho Santa Margarita (California) | 692.69 mi (1,114.78 km) |
| Boise to Randallstown (Maryland) | 2,042.10 mi (3,286.45 km) |
| Boise to Rantoul (Illinois) | 1,453.44 mi (2,339.09 km) |
| Boise to Rapid City (South Dakota) | 648.56 mi (1,043.76 km) |
| Boise to Ravenna (Ohio) | 1,780.43 mi (2,865.32 km) |
| Boise to Raymondville (Texas) | 1,570.51 mi (2,527.48 km) |
| Boise to Raymore (Missouri) | 1,175.49 mi (1,891.77 km) |
| Boise to Raytown (Missouri) | 1,170.02 mi (1,882.96 km) |
| Boise to Reading (Ohio) | 1,664.63 mi (2,678.96 km) |
| Boise to Reading (Pennsylvania) | 2,062.24 mi (3,318.86 km) |
