| Lombard to Oak Harbor (Washington) | 1,729.99 mi (2,784.14 km) |
| Lombard to Oak Hills (Oregon) | 1,743.78 mi (2,806.34 km) |
| Lombard to Oak Lawn (Illinois) | 17.49 mi (28.15 km) |
| Lombard to Oak Park (California) | 1,745.10 mi (2,808.47 km) |
| Lombard to Oak Park (Illinois) | 11.65 mi (18.75 km) |
| Lombard to Oak Park (Michigan) | 250.82 mi (403.65 km) |
| Lombard to Oak Ridge (Florida) | 997.32 mi (1,605.03 km) |
| Lombard to Oak Ridge (New Jersey) | 701.74 mi (1,129.35 km) |
| Lombard to Oak Ridge (Tennessee) | 454.61 mi (731.63 km) |
| Lombard to Oakdale (California) | 1,754.38 mi (2,823.40 km) |
| Lombard to Oakdale (Minnesota) | 328.41 mi (528.52 km) |
| Lombard to Oakland (California) | 1,824.13 mi (2,935.66 km) |
| Lombard to Oakland (New Jersey) | 714.94 mi (1,150.59 km) |
| Lombard to Oakland Park (Florida) | 1,172.92 mi (1,887.64 km) |
| Lombard to Oakleaf Plantation (Florida) | 878.81 mi (1,414.31 km) |
