| Elkhorn to Oswego (Illinois) | 69.02 mi (111.08 km) |
| Elkhorn to Oswego (New York) | 609.50 mi (980.90 km) |
| Elkhorn to Otsego (Minnesota) | 309.76 mi (498.52 km) |
| Elkhorn to Ottawa (Illinois) | 92.11 mi (148.24 km) |
| Elkhorn to Ottawa (Kansas) | 450.87 mi (725.60 km) |
| Elkhorn to Ottumwa (Iowa) | 230.02 mi (370.19 km) |
| Elkhorn to Overland (Missouri) | 290.88 mi (468.13 km) |
| Elkhorn to Overland Park (Kansas) | 414.38 mi (666.88 km) |
| Elkhorn to Overlea (Maryland) | 666.26 mi (1,072.24 km) |
| Elkhorn to Oviedo (Florida) | 1,051.41 mi (1,692.08 km) |
| Elkhorn to Owasso (Oklahoma) | 587.59 mi (945.63 km) |
| Elkhorn to Owatonna (Minnesota) | 255.25 mi (410.78 km) |
| Elkhorn to Owensboro (Kentucky) | 347.67 mi (559.52 km) |
| Elkhorn to Owings Mills (Maryland) | 651.57 mi (1,048.60 km) |
| Elkhorn to Owosso (Michigan) | 222.11 mi (357.45 km) |
