| Pittsburgh to Maricopa (Arizona) | 1,834.11 mi (2,951.71 km) |
| Pittsburgh to Marietta (Georgia) | 513.62 mi (826.59 km) |
| Pittsburgh to Marietta (Ohio) | 104.84 mi (168.72 km) |
| Pittsburgh to Marina (California) | 2,252.81 mi (3,625.54 km) |
| Pittsburgh to Marinette (Wisconsin) | 503.57 mi (810.42 km) |
| Pittsburgh to Marion (Arkansas) | 664.59 mi (1,069.56 km) |
| Pittsburgh to Marion (Illinois) | 515.57 mi (829.73 km) |
| Pittsburgh to Marion (Indiana) | 298.71 mi (480.72 km) |
| Pittsburgh to Marion (Iowa) | 612.72 mi (986.07 km) |
| Pittsburgh to Marion (Ohio) | 165.61 mi (266.53 km) |
| Pittsburgh to Marion Oaks (Florida) | 800.23 mi (1,287.85 km) |
| Pittsburgh to Markham (Illinois) | 409.90 mi (659.66 km) |
| Pittsburgh to Marlborough (Massachusetts) | 456.18 mi (734.15 km) |
| Pittsburgh to Marlton (New Jersey) | 269.00 mi (432.92 km) |
| Pittsburgh to Marquette (Michigan) | 562.21 mi (904.80 km) |
