| McKeesport to Opole | 4,435.36 mi (7,138.02 km) |
| McKeesport to Orzesze | 4,485.02 mi (7,217.95 km) |
| McKeesport to Osowa | 4,315.35 mi (6,944.89 km) |
| McKeesport to Ostroda | 4,393.48 mi (7,070.63 km) |
| McKeesport to Ostroleka | 4,472.62 mi (7,197.98 km) |
| McKeesport to Ostrow Mazowiecka | 4,494.49 mi (7,233.18 km) |
| McKeesport to Ostrow Wielkopolski | 4,394.37 mi (7,072.06 km) |
| McKeesport to Ostrowiec Swietokrzyski | 4,550.59 mi (7,323.46 km) |
| McKeesport to Ostrzeszow | 4,407.27 mi (7,092.81 km) |
| McKeesport to Oswiecim | 4,506.68 mi (7,252.81 km) |
| McKeesport to Otwock | 4,499.29 mi (7,240.91 km) |
| McKeesport to Ozarow Mazowiecki | 4,479.06 mi (7,208.35 km) |
| McKeesport to Ozimek | 4,445.39 mi (7,154.16 km) |
| McKeesport to Ozorkow | 4,435.09 mi (7,137.58 km) |
| McKeesport to Pabianice | 4,450.69 mi (7,162.70 km) |
