| Prospect Heights to Mankato (Minnesota) | 336.73 mi (541.92 km) |
| Prospect Heights to Manor (Texas) | 970.58 mi (1,561.99 km) |
| Prospect Heights to Manorville (New York) | 787.12 mi (1,266.75 km) |
| Prospect Heights to Mansfield (Ohio) | 294.50 mi (473.96 km) |
| Prospect Heights to Mansfield (Texas) | 829.05 mi (1,334.23 km) |
| Prospect Heights to Manteca (California) | 1,777.26 mi (2,860.22 km) |
| Prospect Heights to Manville (New Jersey) | 699.69 mi (1,126.04 km) |
| Prospect Heights to Maple Grove (Minnesota) | 346.01 mi (556.85 km) |
| Prospect Heights to Maple Heights (Ohio) | 331.44 mi (533.39 km) |
| Prospect Heights to Maple Valley (Washington) | 1,698.77 mi (2,733.91 km) |
| Prospect Heights to Mapleton (Utah) | 1,234.65 mi (1,986.98 km) |
| Prospect Heights to Maplewood (Minnesota) | 323.61 mi (520.79 km) |
| Prospect Heights to Marana (Arizona) | 1,434.81 mi (2,309.10 km) |
| Prospect Heights to Marco Island (Florida) | 1,171.97 mi (1,886.10 km) |
| Prospect Heights to Margate (Florida) | 1,179.76 mi (1,898.64 km) |
