| Prospect Heights to Altus (Oklahoma) | 801.64 mi (1,290.12 km) |
| Prospect Heights to Alum Rock (California) | 1,818.17 mi (2,926.06 km) |
| Prospect Heights to Alvin (Texas) | 969.95 mi (1,560.99 km) |
| Prospect Heights to Amarillo (Texas) | 887.43 mi (1,428.17 km) |
| Prospect Heights to Amelia (Ohio) | 288.06 mi (463.59 km) |
| Prospect Heights to American Canyon (California) | 1,821.03 mi (2,930.67 km) |
| Prospect Heights to American Fork (Utah) | 1,241.72 mi (1,998.36 km) |
| Prospect Heights to Americus (Georgia) | 722.23 mi (1,162.32 km) |
| Prospect Heights to Ames (Iowa) | 292.12 mi (470.11 km) |
| Prospect Heights to Amherst (Ohio) | 297.54 mi (478.84 km) |
| Prospect Heights to Ammon (Idaho) | 1,217.87 mi (1,959.97 km) |
| Prospect Heights to Amsterdam (New York) | 701.08 mi (1,128.28 km) |
| Prospect Heights to Anacortes (Washington) | 1,727.14 mi (2,779.56 km) |
| Prospect Heights to Anaheim (California) | 1,716.84 mi (2,762.99 km) |
| Prospect Heights to Anchorage (Alaska) | 2,801.83 mi (4,509.11 km) |
