| Idaho Falls to Mauldin (South Carolina) | 1,692.14 mi (2,723.24 km) |
| Idaho Falls to Maumee (Ohio) | 1,443.70 mi (2,323.41 km) |
| Idaho Falls to Maumelle (Arkansas) | 1,204.87 mi (1,939.05 km) |
| Idaho Falls to Mayagüez (Puerto Rico) | 3,131.07 mi (5,038.97 km) |
| Idaho Falls to Mayfield Heights (Ohio) | 1,555.00 mi (2,502.52 km) |
| Idaho Falls to Mays Chapel (Maryland) | 1,839.33 mi (2,960.11 km) |
| Idaho Falls to Maywood (California) | 734.74 mi (1,182.44 km) |
| Idaho Falls to Maywood (Illinois) | 1,229.39 mi (1,978.52 km) |
| Idaho Falls to McAlester (Oklahoma) | 1,049.64 mi (1,689.23 km) |
| Idaho Falls to McAllen (Texas) | 1,421.74 mi (2,288.08 km) |
| Idaho Falls to McCalla (Alabama) | 1,517.75 mi (2,442.58 km) |
| Idaho Falls to McComb (Mississippi) | 1,448.10 mi (2,330.50 km) |
| Idaho Falls to McDonough (Georgia) | 1,650.27 mi (2,655.85 km) |
| Idaho Falls to McFarland (California) | 661.47 mi (1,064.54 km) |
| Idaho Falls to McHenry (Illinois) | 1,200.01 mi (1,931.23 km) |
