| Boise to University Place (Washington) | 395.00 mi (635.70 km) |
| Boise to Upland (California) | 659.66 mi (1,061.62 km) |
| Boise to Upper Arlington (Ohio) | 1,713.79 mi (2,758.08 km) |
| Boise to Upper Grand Lagoon (Florida) | 1,908.09 mi (3,070.78 km) |
| Boise to Upper Montclair (New Jersey) | 2,135.98 mi (3,437.53 km) |
| Boise to Urbana (Illinois) | 1,455.54 mi (2,342.47 km) |
| Boise to Urbana (Maryland) | 2,016.33 mi (3,244.97 km) |
| Boise to Urbana (Ohio) | 1,677.80 mi (2,700.15 km) |
| Boise to Urbandale (Iowa) | 1,145.88 mi (1,844.12 km) |
| Boise to Utica (New York) | 2,039.30 mi (3,281.94 km) |
| Boise to Uvalde (Texas) | 1,345.83 mi (2,165.90 km) |
| Boise to Vacaville (California) | 469.54 mi (755.65 km) |
| Boise to Vadnais Heights (Minnesota) | 1,144.97 mi (1,842.66 km) |
| Boise to Vail (Arizona) | 854.68 mi (1,375.48 km) |
| Boise to Valdosta (Georgia) | 1,997.94 mi (3,215.37 km) |
