| Pittsburg to Opole | 5,842.43 mi (9,402.49 km) |
| Pittsburg to Orzesze | 5,891.42 mi (9,481.32 km) |
| Pittsburg to Osowa | 5,630.31 mi (9,061.11 km) |
| Pittsburg to Ostroda | 5,704.13 mi (9,179.91 km) |
| Pittsburg to Ostroleka | 5,774.22 mi (9,292.71 km) |
| Pittsburg to Ostrow Mazowiecka | 5,797.01 mi (9,329.38 km) |
| Pittsburg to Ostrow Wielkopolski | 5,781.50 mi (9,304.42 km) |
| Pittsburg to Ostrowiec Swietokrzyski | 5,900.81 mi (9,496.44 km) |
| Pittsburg to Ostrzeszow | 5,797.88 mi (9,330.79 km) |
| Pittsburg to Oswiecim | 5,908.54 mi (9,508.88 km) |
| Pittsburg to Otwock | 5,826.08 mi (9,376.17 km) |
| Pittsburg to Ozarow Mazowiecki | 5,810.57 mi (9,351.20 km) |
| Pittsburg to Ozimek | 5,848.29 mi (9,411.91 km) |
| Pittsburg to Ozorkow | 5,794.20 mi (9,324.86 km) |
| Pittsburg to Pabianice | 5,815.31 mi (9,358.84 km) |
