| Prospect Heights to Merriam (Kansas) | 414.05 mi (666.35 km) |
| Prospect Heights to Merrick (New York) | 751.00 mi (1,208.61 km) |
| Prospect Heights to Merrifield (Virginia) | 603.64 mi (971.46 km) |
| Prospect Heights to Merrillville (Indiana) | 53.66 mi (86.36 km) |
| Prospect Heights to Merritt Island (Florida) | 1,036.10 mi (1,667.44 km) |
| Prospect Heights to Mesa (Arizona) | 1,425.64 mi (2,294.35 km) |
| Prospect Heights to Mesquite (Nevada) | 1,438.99 mi (2,315.83 km) |
| Prospect Heights to Mesquite (Texas) | 800.61 mi (1,288.46 km) |
| Prospect Heights to Metairie (Louisiana) | 845.77 mi (1,361.13 km) |
| Prospect Heights to Methuen Town (Massachusetts) | 853.45 mi (1,373.50 km) |
| Prospect Heights to Metuchen (New Jersey) | 711.26 mi (1,144.65 km) |
| Prospect Heights to Mexico (Missouri) | 289.90 mi (466.55 km) |
| Prospect Heights to Miami (Florida) | 1,209.91 mi (1,947.16 km) |
| Prospect Heights to Miami (Oklahoma) | 516.35 mi (830.99 km) |
| Prospect Heights to Miami Beach (Florida) | 1,209.21 mi (1,946.04 km) |
