| Greenlawn to Oswego (Illinois) | 778.58 mi (1,253.01 km) |
| Greenlawn to Oswego (New York) | 240.34 mi (386.79 km) |
| Greenlawn to Otsego (Minnesota) | 1,063.49 mi (1,711.53 km) |
| Greenlawn to Ottawa (Illinois) | 804.56 mi (1,294.81 km) |
| Greenlawn to Ottawa (Kansas) | 1,170.97 mi (1,884.49 km) |
| Greenlawn to Ottumwa (Iowa) | 992.54 mi (1,597.34 km) |
| Greenlawn to Overland (Missouri) | 913.72 mi (1,470.50 km) |
| Greenlawn to Overland Park (Kansas) | 1,135.99 mi (1,828.19 km) |
| Greenlawn to Overlea (Maryland) | 196.15 mi (315.67 km) |
| Greenlawn to Oviedo (Florida) | 952.05 mi (1,532.17 km) |
| Greenlawn to Owasso (Oklahoma) | 1,250.19 mi (2,011.99 km) |
| Greenlawn to Owatonna (Minnesota) | 1,033.94 mi (1,663.96 km) |
| Greenlawn to Owensboro (Kentucky) | 764.94 mi (1,231.05 km) |
| Greenlawn to Owings Mills (Maryland) | 206.92 mi (333.00 km) |
| Greenlawn to Owosso (Michigan) | 574.48 mi (924.53 km) |
