| Northampton to Portage (Michigan) | 3,803.31 mi (6,120.84 km) |
| Northampton to Portage (Wisconsin) | 3,885.96 mi (6,253.85 km) |
| Northampton to Portales (New Mexico) | 4,867.40 mi (7,833.33 km) |
| Northampton to Porterville (California) | 5,292.16 mi (8,516.91 km) |
| Northampton to Portland (Maine) | 3,138.13 mi (5,050.32 km) |
| Northampton to Portland (Oregon) | 4,851.87 mi (7,808.34 km) |
| Northampton to Portland (Tennessee) | 4,105.77 mi (6,607.60 km) |
| Northampton to Portland (Texas) | 4,974.13 mi (8,005.09 km) |
| Northampton to Portsmouth (New Hampshire) | 3,184.29 mi (5,124.61 km) |
| Northampton to Portsmouth (Ohio) | 3,861.17 mi (6,213.96 km) |
| Northampton to Portsmouth (Virginia) | 3,685.35 mi (5,930.99 km) |
| Northampton to Post Falls (Idaho) | 4,572.25 mi (7,358.32 km) |
| Northampton to Potomac (Maryland) | 3,619.60 mi (5,825.18 km) |
| Northampton to Potomac Park (California) | 5,330.30 mi (8,578.29 km) |
| Northampton to Pottstown (Pennsylvania) | 3,501.35 mi (5,634.88 km) |
