| McKeesport to Odessa (Texas) | 1,380.11 mi (2,221.08 km) |
| McKeesport to Ogden (Utah) | 1,672.10 mi (2,690.99 km) |
| McKeesport to Oildale (California) | 2,145.90 mi (3,453.50 km) |
| McKeesport to Ojus (Florida) | 994.11 mi (1,599.86 km) |
| McKeesport to Okemos (Michigan) | 287.25 mi (462.28 km) |
| McKeesport to Oklahoma City (Oklahoma) | 1,018.32 mi (1,638.83 km) |
| McKeesport to Okmulgee (Oklahoma) | 937.24 mi (1,508.34 km) |
| McKeesport to Olathe (Kansas) | 802.50 mi (1,291.50 km) |
| McKeesport to Old Jamestown (Missouri) | 565.16 mi (909.54 km) |
| McKeesport to Oldsmar (Florida) | 864.32 mi (1,390.99 km) |
| McKeesport to Olean (New York) | 140.85 mi (226.68 km) |
| McKeesport to Olive Branch (Mississippi) | 660.87 mi (1,063.57 km) |
| McKeesport to Olivehurst (California) | 2,198.14 mi (3,537.56 km) |
| McKeesport to Olney (Maryland) | 168.85 mi (271.74 km) |
| McKeesport to Olympia (Washington) | 2,171.34 mi (3,494.44 km) |
