| River Forest to Mattoon (Illinois) | 169.44 mi (272.69 km) |
| River Forest to Mauldin (South Carolina) | 574.92 mi (925.25 km) |
| River Forest to Maumee (Ohio) | 215.44 mi (346.71 km) |
| River Forest to Maumelle (Arkansas) | 546.00 mi (878.70 km) |
| River Forest to Mayagüez (Puerto Rico) | 2,039.99 mi (3,283.05 km) |
| River Forest to Mayfield Heights (Ohio) | 329.33 mi (530.01 km) |
| River Forest to Mays Chapel (Maryland) | 608.98 mi (980.06 km) |
| River Forest to Maywood (California) | 1,731.98 mi (2,787.35 km) |
| River Forest to Maywood (Illinois) | 1.65 mi (2.66 km) |
| River Forest to McAlester (Oklahoma) | 645.40 mi (1,038.67 km) |
| River Forest to McAllen (Texas) | 1,234.03 mi (1,985.99 km) |
| River Forest to McCalla (Alabama) | 595.26 mi (957.98 km) |
| River Forest to McComb (Mississippi) | 750.36 mi (1,207.59 km) |
| River Forest to McDonough (Georgia) | 617.54 mi (993.83 km) |
| River Forest to McFarland (California) | 1,735.38 mi (2,792.82 km) |
