| Pittsburgh to Oststeinbek | 4,050.81 mi (6,519.15 km) |
| Pittsburgh to Ottendorf-Okrilla | 4,264.68 mi (6,863.34 km) |
| Pittsburgh to Ottersberg | 4,027.16 mi (6,481.09 km) |
| Pittsburgh to Ottobrunn | 4,290.55 mi (6,904.98 km) |
| Pittsburgh to Ottweiler | 4,067.63 mi (6,546.22 km) |
| Pittsburgh to Overath | 4,023.25 mi (6,474.79 km) |
| Pittsburgh to Oyten | 4,023.45 mi (6,475.12 km) |
| Pittsburgh to Paderborn | 4,055.32 mi (6,526.41 km) |
| Pittsburgh to Papenburg | 3,962.90 mi (6,377.67 km) |
| Pittsburgh to Parchim | 4,115.66 mi (6,623.52 km) |
| Pittsburgh to Pasewalk | 4,191.04 mi (6,744.82 km) |
| Pittsburgh to Passau | 4,343.32 mi (6,989.89 km) |
| Pittsburgh to Pattensen | 4,076.29 mi (6,560.16 km) |
| Pittsburgh to Pegnitz | 4,227.12 mi (6,802.89 km) |
| Pittsburgh to Peine | 4,092.08 mi (6,585.57 km) |
