| Pittsburgh to Oschatz | 4,233.59 mi (6,813.30 km) |
| Pittsburgh to Oschersleben | 4,139.96 mi (6,662.62 km) |
| Pittsburgh to Osnabruck | 4,011.02 mi (6,455.12 km) |
| Pittsburgh to Ostbevern | 4,010.75 mi (6,454.68 km) |
| Pittsburgh to Osterburg | 4,133.93 mi (6,652.91 km) |
| Pittsburgh to Ostercappeln | 4,015.92 mi (6,462.99 km) |
| Pittsburgh to Osterhofen | 4,321.39 mi (6,954.60 km) |
| Pittsburgh to Osterholz-Scharmbeck | 4,010.59 mi (6,454.42 km) |
| Pittsburgh to Osternienburg | 4,175.81 mi (6,720.32 km) |
| Pittsburgh to Osterode | 4,111.85 mi (6,617.39 km) |
| Pittsburgh to Osterwieck | 4,121.61 mi (6,633.10 km) |
| Pittsburgh to Ostfildern | 4,171.46 mi (6,713.31 km) |
| Pittsburgh to Osthofen | 4,102.88 mi (6,602.94 km) |
| Pittsburgh to Ostrhauderfehn | 3,969.52 mi (6,388.33 km) |
| Pittsburgh to Ostringen | 4,133.90 mi (6,652.87 km) |
