| Darby to Oak Harbor (Washington) | 2,380.04 mi (3,830.31 km) |
| Darby to Oak Hills (Oregon) | 2,409.79 mi (3,878.18 km) |
| Darby to Oak Lawn (Illinois) | 664.20 mi (1,068.93 km) |
| Darby to Oak Park (California) | 2,407.43 mi (3,874.39 km) |
| Darby to Oak Park (Illinois) | 667.58 mi (1,074.36 km) |
| Darby to Oak Park (Michigan) | 447.56 mi (720.27 km) |
| Darby to Oak Ridge (Florida) | 865.11 mi (1,392.27 km) |
| Darby to Oak Ridge (New Jersey) | 86.65 mi (139.44 km) |
| Darby to Oak Ridge (Tennessee) | 562.62 mi (905.45 km) |
| Darby to Oakdale (California) | 2,431.01 mi (3,912.33 km) |
| Darby to Oakdale (Minnesota) | 965.49 mi (1,553.81 km) |
| Darby to Oakland (California) | 2,501.45 mi (4,025.69 km) |
| Darby to Oakland (New Jersey) | 93.59 mi (150.62 km) |
| Darby to Oakland Park (Florida) | 990.46 mi (1,593.99 km) |
| Darby to Oakleaf Plantation (Florida) | 769.00 mi (1,237.59 km) |
