| Boise to Joliet (Illinois) | 1,429.46 mi (2,300.49 km) |
| Boise to Jonesboro (Arkansas) | 1,453.31 mi (2,338.87 km) |
| Boise to Joplin (Missouri) | 1,225.45 mi (1,972.17 km) |
| Boise to Joppatowne (Maryland) | 2,063.40 mi (3,320.73 km) |
| Boise to Juana Díaz (Puerto Rico) | 3,371.19 mi (5,425.40 km) |
| Boise to Junction City (Kansas) | 1,051.35 mi (1,691.99 km) |
| Boise to Juneau (Alaska) | 1,280.33 mi (2,060.49 km) |
| Boise to Jupiter (Florida) | 2,315.09 mi (3,725.78 km) |
| Boise to Jupiter Farms (Florida) | 2,309.94 mi (3,717.49 km) |
| Boise to Jurupa Valley (California) | 666.59 mi (1,072.77 km) |
| Boise to Justice (Illinois) | 1,441.08 mi (2,319.19 km) |
| Boise to Kahului (Hawaii) | 2,786.77 mi (4,484.87 km) |
| Boise to Kailua (Hawaii) | 2,822.17 mi (4,541.84 km) |
| Boise to Kalamazoo (Michigan) | 1,543.89 mi (2,484.66 km) |
| Boise to Kalispell (Montana) | 331.69 mi (533.81 km) |
