| Galveston to Oak Harbor (Washington) | 1,971.60 mi (3,172.98 km) |
| Galveston to Oak Hills (Oregon) | 1,886.72 mi (3,036.39 km) |
| Galveston to Oak Lawn (Illinois) | 949.44 mi (1,527.98 km) |
| Galveston to Oak Park (California) | 1,440.47 mi (2,318.21 km) |
| Galveston to Oak Park (Illinois) | 959.25 mi (1,543.76 km) |
| Galveston to Oak Park (Michigan) | 1,121.78 mi (1,805.33 km) |
| Galveston to Oak Ridge (Florida) | 816.67 mi (1,314.30 km) |
| Galveston to Oak Ridge (New Jersey) | 1,405.10 mi (2,261.29 km) |
| Galveston to Oak Ridge (Tennessee) | 771.02 mi (1,240.83 km) |
| Galveston to Oakdale (California) | 1,600.24 mi (2,575.33 km) |
| Galveston to Oakdale (Minnesota) | 1,092.56 mi (1,758.30 km) |
| Galveston to Oakland (California) | 1,673.52 mi (2,693.28 km) |
| Galveston to Oakland (New Jersey) | 1,416.78 mi (2,280.09 km) |
| Galveston to Oakland Park (Florida) | 925.42 mi (1,489.32 km) |
| Galveston to Oakleaf Plantation (Florida) | 785.75 mi (1,264.54 km) |
