| Boise to Yonkers (New York) | 2,150.06 mi (3,460.18 km) |
| Boise to Yorba Linda (California) | 676.08 mi (1,088.05 km) |
| Boise to York (Pennsylvania) | 2,031.15 mi (3,268.82 km) |
| Boise to Yorktown (Indiana) | 1,588.25 mi (2,556.04 km) |
| Boise to Yorkville (Illinois) | 1,411.98 mi (2,272.36 km) |
| Boise to Youngstown (Ohio) | 1,811.30 mi (2,915.01 km) |
| Boise to Youngsville (Louisiana) | 1,622.90 mi (2,611.80 km) |
| Boise to Ypsilanti (Michigan) | 1,641.97 mi (2,642.49 km) |
| Boise to Yuba City (California) | 416.69 mi (670.59 km) |
| Boise to Yucaipa (California) | 662.44 mi (1,066.10 km) |
| Boise to Yucca Valley (California) | 654.88 mi (1,053.93 km) |
| Boise to Yukon (Oklahoma) | 1,127.40 mi (1,814.38 km) |
| Boise to Yulee (Florida) | 2,089.46 mi (3,362.66 km) |
| Boise to Yuma (Arizona) | 765.53 mi (1,232.00 km) |
| Boise to Zachary (Louisiana) | 1,634.69 mi (2,630.79 km) |
