| Red Oak to Ukiah (California) | 1,542.93 mi (2,483.10 km) |
| Red Oak to Union (Missouri) | 522.72 mi (841.23 km) |
| Red Oak to Union City (California) | 1,464.66 mi (2,357.14 km) |
| Red Oak to Union City (Georgia) | 711.31 mi (1,144.74 km) |
| Red Oak to Union City (New Jersey) | 1,378.78 mi (2,218.93 km) |
| Red Oak to Union City (Tennessee) | 516.59 mi (831.37 km) |
| Red Oak to Union Hill-Novelty Hill (Washington) | 1,682.81 mi (2,708.22 km) |
| Red Oak to Union Park (Florida) | 963.83 mi (1,551.14 km) |
| Red Oak to Uniondale (New York) | 1,399.71 mi (2,252.62 km) |
| Red Oak to Universal City (Texas) | 224.02 mi (360.53 km) |
| Red Oak to University (Florida) | 908.68 mi (1,462.38 km) |
| Red Oak to University City (Missouri) | 558.04 mi (898.07 km) |
| Red Oak to University Heights (Ohio) | 1,042.64 mi (1,677.97 km) |
| Red Oak to University of California-Santa Barbara (California) | 1,333.24 mi (2,145.63 km) |
| Red Oak to University Park (Texas) | 22.76 mi (36.63 km) |
