| Oklahoma City to Oswego (Illinois) | 655.16 mi (1,054.38 km) |
| Oklahoma City to Oswego (New York) | 1,244.56 mi (2,002.92 km) |
| Oklahoma City to Otsego (Minnesota) | 707.12 mi (1,137.99 km) |
| Oklahoma City to Ottawa (Illinois) | 621.28 mi (999.85 km) |
| Oklahoma City to Ottawa (Kansas) | 249.44 mi (401.43 km) |
| Oklahoma City to Ottumwa (Iowa) | 472.65 mi (760.66 km) |
| Oklahoma City to Overland (Missouri) | 452.42 mi (728.10 km) |
| Oklahoma City to Overland Park (Kansas) | 282.86 mi (455.22 km) |
| Oklahoma City to Overlea (Maryland) | 1,180.31 mi (1,899.52 km) |
| Oklahoma City to Oviedo (Florida) | 1,063.56 mi (1,711.64 km) |
| Oklahoma City to Owasso (Oklahoma) | 109.92 mi (176.91 km) |
| Oklahoma City to Owatonna (Minnesota) | 637.51 mi (1,025.97 km) |
| Oklahoma City to Owensboro (Kentucky) | 597.53 mi (961.63 km) |
| Oklahoma City to Owings Mills (Maryland) | 1,166.18 mi (1,876.78 km) |
| Oklahoma City to Owosso (Michigan) | 881.45 mi (1,418.55 km) |
