| Prospect Heights to Mendota (California) | 1,759.66 mi (2,831.90 km) |
| Prospect Heights to Mendota Heights (Minnesota) | 324.11 mi (521.60 km) |
| Prospect Heights to Menifee (California) | 1,687.77 mi (2,716.21 km) |
| Prospect Heights to Menlo Park (California) | 1,833.33 mi (2,950.45 km) |
| Prospect Heights to Menomonee Falls (Wisconsin) | 72.87 mi (117.28 km) |
| Prospect Heights to Menomonie (Wisconsin) | 277.18 mi (446.08 km) |
| Prospect Heights to Mentor (Ohio) | 340.07 mi (547.29 km) |
| Prospect Heights to Mequon (Wisconsin) | 78.22 mi (125.88 km) |
| Prospect Heights to Merced (California) | 1,750.76 mi (2,817.58 km) |
| Prospect Heights to Mercedes (Texas) | 1,239.15 mi (1,994.22 km) |
| Prospect Heights to Mercer Island (Washington) | 1,707.85 mi (2,748.52 km) |
| Prospect Heights to Mercerville (New Jersey) | 699.60 mi (1,125.90 km) |
| Prospect Heights to Meriden (Connecticut) | 779.13 mi (1,253.89 km) |
| Prospect Heights to Meridian (Idaho) | 1,438.69 mi (2,315.35 km) |
| Prospect Heights to Meridian (Mississippi) | 672.84 mi (1,082.83 km) |
