| Herndon to Mitchell (South Dakota) | 1,116.85 mi (1,797.40 km) |
| Herndon to Mitchellville (Maryland) | 30.83 mi (49.62 km) |
| Herndon to Moberly (Missouri) | 805.54 mi (1,296.40 km) |
| Herndon to Mobile (Alabama) | 834.65 mi (1,343.23 km) |
| Herndon to Modesto (California) | 2,343.84 mi (3,772.05 km) |
| Herndon to Mokena (Illinois) | 580.45 mi (934.14 km) |
| Herndon to Moline (Illinois) | 712.02 mi (1,145.88 km) |
| Herndon to Moncks Corner (South Carolina) | 426.44 mi (686.28 km) |
| Herndon to Monfort Heights (Ohio) | 387.48 mi (623.59 km) |
| Herndon to Monmouth (Oregon) | 2,359.82 mi (3,797.77 km) |
| Herndon to Monroe (Georgia) | 501.33 mi (806.81 km) |
| Herndon to Monroe (Louisiana) | 935.03 mi (1,504.79 km) |
| Herndon to Monroe (Michigan) | 375.23 mi (603.87 km) |
| Herndon to Monroe (North Carolina) | 325.00 mi (523.04 km) |
| Herndon to Monroe (Ohio) | 375.04 mi (603.57 km) |
