| Rancho Santa Margarita to Oak Grove (South Carolina) | 2,081.70 mi (3,350.17 km) |
| Rancho Santa Margarita to Oak Harbor (Washington) | 1,046.12 mi (1,683.57 km) |
| Rancho Santa Margarita to Oak Hills (Oregon) | 868.37 mi (1,397.50 km) |
| Rancho Santa Margarita to Oak Lawn (Illinois) | 1,714.89 mi (2,759.84 km) |
| Rancho Santa Margarita to Oak Park (California) | 77.12 mi (124.11 km) |
| Rancho Santa Margarita to Oak Park (Illinois) | 1,714.96 mi (2,759.95 km) |
| Rancho Santa Margarita to Oak Park (Michigan) | 1,954.12 mi (3,144.86 km) |
| Rancho Santa Margarita to Oak Ridge (Florida) | 2,160.03 mi (3,476.23 km) |
| Rancho Santa Margarita to Oak Ridge (New Jersey) | 2,397.29 mi (3,858.07 km) |
| Rancho Santa Margarita to Oak Ridge (Tennessee) | 1,887.35 mi (3,037.40 km) |
| Rancho Santa Margarita to Oakdale (California) | 338.53 mi (544.81 km) |
| Rancho Santa Margarita to Oakdale (Minnesota) | 1,523.83 mi (2,452.36 km) |
| Rancho Santa Margarita to Oakland (California) | 386.77 mi (622.44 km) |
| Rancho Santa Margarita to Oakland (New Jersey) | 2,410.65 mi (3,879.56 km) |
| Rancho Santa Margarita to Oakland Park (Florida) | 2,288.07 mi (3,682.29 km) |
