| Ponca City to Oskaloosa (Iowa) | 395.03 mi (635.74 km) |
| Ponca City to Oswego (Illinois) | 579.10 mi (931.98 km) |
| Ponca City to Oswego (New York) | 1,178.37 mi (1,896.40 km) |
| Ponca City to Otsego (Minnesota) | 616.84 mi (992.71 km) |
| Ponca City to Ottawa (Illinois) | 545.52 mi (877.93 km) |
| Ponca City to Ottawa (Kansas) | 162.90 mi (262.17 km) |
| Ponca City to Ottumwa (Iowa) | 388.01 mi (624.44 km) |
| Ponca City to Overland (Missouri) | 390.60 mi (628.60 km) |
| Ponca City to Overland Park (Kansas) | 198.06 mi (318.75 km) |
| Ponca City to Overlea (Maryland) | 1,130.46 mi (1,819.30 km) |
| Ponca City to Oviedo (Florida) | 1,076.35 mi (1,732.21 km) |
| Ponca City to Owasso (Oklahoma) | 74.98 mi (120.68 km) |
| Ponca City to Owatonna (Minnesota) | 547.45 mi (881.03 km) |
| Ponca City to Owensboro (Kentucky) | 551.70 mi (887.88 km) |
| Ponca City to Owings Mills (Maryland) | 1,116.03 mi (1,796.07 km) |
