| Oak Lawn to Oswego (Illinois) | 30.22 mi (48.64 km) |
| Oak Lawn to Oswego (New York) | 584.41 mi (940.52 km) |
| Oak Lawn to Otsego (Minnesota) | 382.88 mi (616.18 km) |
| Oak Lawn to Ottawa (Illinois) | 60.78 mi (97.82 km) |
| Oak Lawn to Ottawa (Kansas) | 450.99 mi (725.80 km) |
| Oak Lawn to Ottumwa (Iowa) | 246.62 mi (396.90 km) |
| Oak Lawn to Overland (Missouri) | 250.01 mi (402.35 km) |
| Oak Lawn to Overland Park (Kansas) | 414.14 mi (666.49 km) |
| Oak Lawn to Overlea (Maryland) | 611.36 mi (983.90 km) |
| Oak Lawn to Oviedo (Florida) | 974.51 mi (1,568.32 km) |
| Oak Lawn to Owasso (Oklahoma) | 572.86 mi (921.92 km) |
| Oak Lawn to Owatonna (Minnesota) | 322.17 mi (518.48 km) |
| Oak Lawn to Owensboro (Kentucky) | 275.44 mi (443.27 km) |
| Oak Lawn to Owings Mills (Maryland) | 596.48 mi (959.94 km) |
| Oak Lawn to Owosso (Michigan) | 202.94 mi (326.60 km) |
