| Boise to Robertsville (New Jersey) | 2,143.10 mi (3,448.99 km) |
| Boise to Robinson (Texas) | 1,336.49 mi (2,150.87 km) |
| Boise to Robstown (Texas) | 1,502.20 mi (2,417.56 km) |
| Boise to Rochester (Michigan) | 1,659.34 mi (2,670.45 km) |
| Boise to Rochester (Minnesota) | 1,180.61 mi (1,900.00 km) |
| Boise to Rochester (New Hampshire) | 2,241.21 mi (3,606.88 km) |
| Boise to Rochester (New York) | 1,921.54 mi (3,092.42 km) |
| Boise to Rochester Hills (Michigan) | 1,657.90 mi (2,668.13 km) |
| Boise to Rock Hill (South Carolina) | 1,959.20 mi (3,153.03 km) |
| Boise to Rock Island (Illinois) | 1,308.81 mi (2,106.33 km) |
| Boise to Rock Springs (Wyoming) | 382.37 mi (615.36 km) |
| Boise to Rockford (Illinois) | 1,371.33 mi (2,206.94 km) |
| Boise to Rockledge (Florida) | 2,224.88 mi (3,580.60 km) |
| Boise to Rocklin (California) | 421.39 mi (678.16 km) |
| Boise to Rockport (Texas) | 1,512.55 mi (2,434.22 km) |
