| McKeesport to Orangevale (California) | 2,188.28 mi (3,521.70 km) |
| McKeesport to Orchards (Washington) | 2,161.60 mi (3,478.77 km) |
| McKeesport to Orcutt (California) | 2,233.23 mi (3,594.04 km) |
| McKeesport to Oregon (Ohio) | 207.85 mi (334.50 km) |
| McKeesport to Oregon (Wisconsin) | 523.88 mi (843.10 km) |
| McKeesport to Oregon City (Oregon) | 2,167.08 mi (3,487.57 km) |
| McKeesport to Orem (Utah) | 1,668.94 mi (2,685.89 km) |
| McKeesport to Orinda (California) | 2,254.34 mi (3,628.01 km) |
| McKeesport to Orland Park (Illinois) | 427.13 mi (687.40 km) |
| McKeesport to Orlando (Florida) | 824.13 mi (1,326.30 km) |
| McKeesport to Ormond Beach (Florida) | 766.32 mi (1,233.27 km) |
| McKeesport to Oro Valley (Arizona) | 1,805.45 mi (2,905.59 km) |
| McKeesport to Oroville (California) | 2,190.72 mi (3,525.62 km) |
| McKeesport to Oshkosh (Wisconsin) | 513.32 mi (826.11 km) |
| McKeesport to Oskaloosa (Iowa) | 671.72 mi (1,081.03 km) |
