| Elkton to Oswego (Illinois) | 671.02 mi (1,079.90 km) |
| Elkton to Oswego (New York) | 267.98 mi (431.27 km) |
| Elkton to Otsego (Minnesota) | 985.55 mi (1,586.10 km) |
| Elkton to Ottawa (Illinois) | 693.38 mi (1,115.88 km) |
| Elkton to Ottawa (Kansas) | 1,042.75 mi (1,678.14 km) |
| Elkton to Ottumwa (Iowa) | 878.54 mi (1,413.87 km) |
| Elkton to Overland (Missouri) | 781.16 mi (1,257.15 km) |
| Elkton to Overland Park (Kansas) | 1,008.85 mi (1,623.59 km) |
| Elkton to Overlea (Maryland) | 40.75 mi (65.58 km) |
| Elkton to Oviedo (Florida) | 815.93 mi (1,313.11 km) |
| Elkton to Owasso (Oklahoma) | 1,111.63 mi (1,789.00 km) |
| Elkton to Owatonna (Minnesota) | 945.94 mi (1,522.34 km) |
| Elkton to Owensboro (Kentucky) | 622.08 mi (1,001.13 km) |
| Elkton to Owings Mills (Maryland) | 53.46 mi (86.03 km) |
| Elkton to Owosso (Michigan) | 492.53 mi (792.64 km) |
