| Pittsburgh to Miranda de Ebro | 3,840.49 mi (6,180.67 km) |
| Pittsburgh to Mislata | 4,059.01 mi (6,532.35 km) |
| Pittsburgh to Moana | 3,582.99 mi (5,766.26 km) |
| Pittsburgh to Moguer | 3,824.51 mi (6,154.95 km) |
| Pittsburgh to Molina de Segura | 4,069.21 mi (6,548.75 km) |
| Pittsburgh to Molins de Rey | 4,106.21 mi (6,608.31 km) |
| Pittsburgh to Mollerusa | 4,048.16 mi (6,514.88 km) |
| Pittsburgh to Mollet | 4,110.98 mi (6,615.98 km) |
| Pittsburgh to Moncada | 4,111.58 mi (6,616.95 km) |
| Pittsburgh to Moncada | 4,057.59 mi (6,530.06 km) |
| Pittsburgh to Monforte de Lemos | 3,634.09 mi (5,848.50 km) |
| Pittsburgh to Monforte del Cid | 4,081.07 mi (6,567.85 km) |
| Pittsburgh to Mongat | 4,116.37 mi (6,624.66 km) |
| Pittsburgh to Monovar | 4,074.03 mi (6,556.52 km) |
| Pittsburgh to Monserrat | 4,054.17 mi (6,524.55 km) |
