| McKeesport to Oswego (Illinois) | 452.19 mi (727.73 km) |
| McKeesport to Oswego (New York) | 275.15 mi (442.81 km) |
| McKeesport to Otsego (Minnesota) | 775.42 mi (1,247.93 km) |
| McKeesport to Ottawa (Illinois) | 474.42 mi (763.51 km) |
| McKeesport to Ottawa (Kansas) | 830.10 mi (1,335.92 km) |
| McKeesport to Ottumwa (Iowa) | 659.96 mi (1,062.11 km) |
| McKeesport to Overland (Missouri) | 572.00 mi (920.55 km) |
| McKeesport to Overland Park (Kansas) | 795.45 mi (1,280.15 km) |
| McKeesport to Overlea (Maryland) | 188.92 mi (304.03 km) |
| McKeesport to Oviedo (Florida) | 810.86 mi (1,304.95 km) |
| McKeesport to Owasso (Oklahoma) | 909.30 mi (1,463.38 km) |
| McKeesport to Owatonna (Minnesota) | 731.33 mi (1,176.96 km) |
| McKeesport to Owensboro (Kentucky) | 428.99 mi (690.39 km) |
| McKeesport to Owings Mills (Maryland) | 174.15 mi (280.27 km) |
| McKeesport to Owosso (Michigan) | 289.08 mi (465.23 km) |
