| Hernando to Oswego (Illinois) | 480.57 mi (773.41 km) |
| Hernando to Oswego (New York) | 933.74 mi (1,502.72 km) |
| Hernando to Otsego (Minnesota) | 744.60 mi (1,198.31 km) |
| Hernando to Ottawa (Illinois) | 453.92 mi (730.52 km) |
| Hernando to Ottawa (Kansas) | 390.18 mi (627.93 km) |
| Hernando to Ottumwa (Iowa) | 446.25 mi (718.18 km) |
| Hernando to Overland (Missouri) | 266.59 mi (429.04 km) |
| Hernando to Overland Park (Kansas) | 380.87 mi (612.95 km) |
| Hernando to Overlea (Maryland) | 804.28 mi (1,294.36 km) |
| Hernando to Oviedo (Florida) | 670.76 mi (1,079.49 km) |
| Hernando to Owasso (Oklahoma) | 342.80 mi (551.69 km) |
| Hernando to Owatonna (Minnesota) | 661.31 mi (1,064.28 km) |
| Hernando to Owensboro (Kentucky) | 256.84 mi (413.34 km) |
| Hernando to Owings Mills (Maryland) | 791.51 mi (1,273.82 km) |
| Hernando to Owosso (Michigan) | 643.40 mi (1,035.46 km) |
