| Prospect Heights to Portage (Indiana) | 52.54 mi (84.56 km) |
| Prospect Heights to Portage (Michigan) | 119.84 mi (192.87 km) |
| Prospect Heights to Portage (Wisconsin) | 126.69 mi (203.88 km) |
| Prospect Heights to Portales (New Mexico) | 999.17 mi (1,608.00 km) |
| Prospect Heights to Porterville (California) | 1,709.45 mi (2,751.09 km) |
| Prospect Heights to Portland (Maine) | 898.59 mi (1,446.14 km) |
| Prospect Heights to Portland (Oregon) | 1,733.43 mi (2,789.68 km) |
| Prospect Heights to Portland (Tennessee) | 388.12 mi (624.61 km) |
| Prospect Heights to Portland (Texas) | 1,115.00 mi (1,794.42 km) |
| Prospect Heights to Portsmouth (New Hampshire) | 873.17 mi (1,405.22 km) |
| Prospect Heights to Portsmouth (Ohio) | 349.52 mi (562.49 km) |
| Prospect Heights to Portsmouth (Virginia) | 715.22 mi (1,151.04 km) |
| Prospect Heights to Post Falls (Idaho) | 1,462.10 mi (2,353.03 km) |
| Prospect Heights to Potomac (Maryland) | 601.93 mi (968.72 km) |
| Prospect Heights to Potomac Park (California) | 1,725.90 mi (2,777.57 km) |
