| Zephyrhills to Oskaloosa (Iowa) | 1,077.79 mi (1,734.54 km) |
| Zephyrhills to Oswego (Illinois) | 991.36 mi (1,595.44 km) |
| Zephyrhills to Oswego (New York) | 1,097.32 mi (1,765.97 km) |
| Zephyrhills to Otsego (Minnesota) | 1,332.82 mi (2,144.97 km) |
| Zephyrhills to Ottawa (Illinois) | 980.66 mi (1,578.22 km) |
| Zephyrhills to Ottawa (Kansas) | 1,037.90 mi (1,670.34 km) |
| Zephyrhills to Ottumwa (Iowa) | 1,055.78 mi (1,699.11 km) |
| Zephyrhills to Overland (Missouri) | 862.05 mi (1,387.33 km) |
| Zephyrhills to Overland Park (Kansas) | 1,027.37 mi (1,653.40 km) |
| Zephyrhills to Overlea (Maryland) | 833.99 mi (1,342.18 km) |
| Zephyrhills to Oviedo (Florida) | 66.83 mi (107.55 km) |
| Zephyrhills to Owasso (Oklahoma) | 970.62 mi (1,562.06 km) |
| Zephyrhills to Owatonna (Minnesota) | 1,254.04 mi (2,018.18 km) |
| Zephyrhills to Owensboro (Kentucky) | 716.78 mi (1,153.54 km) |
| Zephyrhills to Owings Mills (Maryland) | 831.03 mi (1,337.42 km) |
