| Isperih to Portage (Michigan) | 5,177.24 mi (8,331.97 km) |
| Isperih to Portage (Wisconsin) | 5,242.41 mi (8,436.84 km) |
| Isperih to Portales (New Mexico) | 6,209.17 mi (9,992.70 km) |
| Isperih to Porterville (California) | 6,522.60 mi (10,497.11 km) |
| Isperih to Portland (Maine) | 4,534.66 mi (7,297.83 km) |
| Isperih to Portland (Oregon) | 5,992.22 mi (9,643.54 km) |
| Isperih to Portland (Tennessee) | 5,494.27 mi (8,842.17 km) |
| Isperih to Portland (Texas) | 6,358.46 mi (10,232.95 km) |
| Isperih to Portsmouth (New Hampshire) | 4,581.33 mi (7,372.93 km) |
| Isperih to Portsmouth (Ohio) | 5,251.24 mi (8,451.06 km) |
| Isperih to Portsmouth (Virginia) | 5,084.68 mi (8,183.01 km) |
| Isperih to Post Falls (Idaho) | 5,745.79 mi (9,246.96 km) |
| Isperih to Potomac (Maryland) | 5,016.64 mi (8,073.49 km) |
| Isperih to Potomac Park (California) | 6,565.24 mi (10,565.73 km) |
| Isperih to Pottstown (Pennsylvania) | 4,898.15 mi (7,882.81 km) |
