| Middletown to Mitchell (South Dakota) | 762.82 mi (1,227.65 km) |
| Middletown to Mitchellville (Maryland) | 405.99 mi (653.37 km) |
| Middletown to Moberly (Missouri) | 430.41 mi (692.68 km) |
| Middletown to Mobile (Alabama) | 645.39 mi (1,038.66 km) |
| Middletown to Modesto (California) | 1,969.68 mi (3,169.90 km) |
| Middletown to Mokena (Illinois) | 231.68 mi (372.86 km) |
| Middletown to Moline (Illinois) | 349.62 mi (562.66 km) |
| Middletown to Moncks Corner (South Carolina) | 499.89 mi (804.50 km) |
| Middletown to Monfort Heights (Ohio) | 25.66 mi (41.30 km) |
| Middletown to Monmouth (Oregon) | 2,004.13 mi (3,225.33 km) |
| Middletown to Monroe (Georgia) | 395.77 mi (636.93 km) |
| Middletown to Monroe (Louisiana) | 646.51 mi (1,040.45 km) |
| Middletown to Monroe (Michigan) | 174.40 mi (280.67 km) |
| Middletown to Monroe (North Carolina) | 374.56 mi (602.79 km) |
| Middletown to Monroe (Ohio) | 3.95 mi (6.36 km) |
