| Delaware to University Place (Washington) | 2,004.51 mi (3,225.94 km) |
| Delaware to Upland (California) | 1,937.53 mi (3,118.15 km) |
| Delaware to Upper Arlington (Ohio) | 17.82 mi (28.68 km) |
| Delaware to Upper Grand Lagoon (Florida) | 714.87 mi (1,150.47 km) |
| Delaware to Upper Montclair (New Jersey) | 467.15 mi (751.81 km) |
| Delaware to Urbana (Illinois) | 270.61 mi (435.50 km) |
| Delaware to Urbana (Maryland) | 311.29 mi (500.97 km) |
| Delaware to Urbana (Ohio) | 37.90 mi (61.00 km) |
| Delaware to Urbandale (Iowa) | 566.04 mi (910.95 km) |
| Delaware to Utica (New York) | 448.84 mi (722.34 km) |
| Delaware to Uvalde (Texas) | 1,214.63 mi (1,954.76 km) |
| Delaware to Vacaville (California) | 2,066.41 mi (3,325.57 km) |
| Delaware to Vadnais Heights (Minnesota) | 604.97 mi (973.61 km) |
| Delaware to Vail (Arizona) | 1,635.02 mi (2,631.31 km) |
| Delaware to Valdosta (Georgia) | 651.99 mi (1,049.28 km) |
