| Longford to Portage (Michigan) | 3,498.66 mi (5,630.55 km) |
| Longford to Portage (Wisconsin) | 3,583.06 mi (5,766.38 km) |
| Longford to Portales (New Mexico) | 4,565.63 mi (7,347.67 km) |
| Longford to Porterville (California) | 5,006.40 mi (8,057.02 km) |
| Longford to Portland (Maine) | 2,833.91 mi (4,560.74 km) |
| Longford to Portland (Oregon) | 4,583.95 mi (7,377.15 km) |
| Longford to Portland (Tennessee) | 3,800.62 mi (6,116.51 km) |
| Longford to Portland (Texas) | 4,668.94 mi (7,513.93 km) |
| Longford to Portsmouth (New Hampshire) | 2,880.24 mi (4,635.30 km) |
| Longford to Portsmouth (Ohio) | 3,556.08 mi (5,722.96 km) |
| Longford to Portsmouth (Virginia) | 3,382.90 mi (5,444.26 km) |
| Longford to Post Falls (Idaho) | 4,299.30 mi (6,919.06 km) |
| Longford to Potomac (Maryland) | 3,315.59 mi (5,335.93 km) |
| Longford to Potomac Park (California) | 5,043.69 mi (8,117.03 km) |
| Longford to Pottstown (Pennsylvania) | 3,197.25 mi (5,145.48 km) |
