| Pittsburgh to Mombris | 4,124.15 mi (6,637.18 km) |
| Pittsburgh to Monchengladbach | 3,981.87 mi (6,408.19 km) |
| Pittsburgh to Monschau | 3,994.36 mi (6,428.30 km) |
| Pittsburgh to Montabaur | 4,059.79 mi (6,533.60 km) |
| Pittsburgh to Moosburg | 4,287.05 mi (6,899.35 km) |
| Pittsburgh to Morbach | 4,051.41 mi (6,520.11 km) |
| Pittsburgh to Morfelden-Walldorf | 4,103.46 mi (6,603.88 km) |
| Pittsburgh to Morlenbach | 4,122.52 mi (6,634.55 km) |
| Pittsburgh to Morsbach | 4,042.05 mi (6,505.05 km) |
| Pittsburgh to Mosbach | 4,146.81 mi (6,673.64 km) |
| Pittsburgh to Mosigkau | 4,182.78 mi (6,731.54 km) |
| Pittsburgh to Mossingen | 4,174.68 mi (6,718.49 km) |
| Pittsburgh to Much | 4,028.17 mi (6,482.72 km) |
| Pittsburgh to Mucheln | 4,184.46 mi (6,734.24 km) |
| Pittsburgh to Muhlacker | 4,147.89 mi (6,675.38 km) |
