| Pittsburgh to Merriam (Kansas) | 787.23 mi (1,266.93 km) |
| Pittsburgh to Merrick (New York) | 337.46 mi (543.09 km) |
| Pittsburgh to Merrifield (Virginia) | 181.26 mi (291.72 km) |
| Pittsburgh to Merrillville (Indiana) | 389.64 mi (627.06 km) |
| Pittsburgh to Merritt Island (Florida) | 838.74 mi (1,349.82 km) |
| Pittsburgh to Mesa (Arizona) | 1,808.70 mi (2,910.82 km) |
| Pittsburgh to Mesquite (Nevada) | 1,849.22 mi (2,976.04 km) |
| Pittsburgh to Mesquite (Texas) | 1,060.63 mi (1,706.92 km) |
| Pittsburgh to Metairie (Louisiana) | 921.70 mi (1,483.34 km) |
| Pittsburgh to Methuen Town (Massachusetts) | 480.71 mi (773.63 km) |
| Pittsburgh to Metuchen (New Jersey) | 295.00 mi (474.76 km) |
| Pittsburgh to Mexico (Missouri) | 637.05 mi (1,025.23 km) |
| Pittsburgh to Miami (Florida) | 1,012.70 mi (1,629.78 km) |
| Pittsburgh to Miami (Oklahoma) | 839.00 mi (1,350.25 km) |
| Pittsburgh to Miami Beach (Florida) | 1,010.37 mi (1,626.03 km) |
