| Middle River to Pontefract | 3,527.82 mi (5,677.48 km) |
| Middle River to Ponteland | 3,486.06 mi (5,610.27 km) |
| Middle River to Pontneddfechan | 3,473.34 mi (5,589.80 km) |
| Middle River to Pontypridd | 3,486.41 mi (5,610.84 km) |
| Middle River to Poole | 3,560.70 mi (5,730.40 km) |
| Middle River to Port Glasgow | 3,359.86 mi (5,407.18 km) |
| Middle River to Port Talbot | 3,467.82 mi (5,580.91 km) |
| Middle River to Portchester | 3,593.85 mi (5,783.74 km) |
| Middle River to Porthcawl | 3,474.43 mi (5,591.55 km) |
| Middle River to Portishead | 3,512.60 mi (5,652.98 km) |
| Middle River to Portlethen | 3,438.64 mi (5,533.96 km) |
| Middle River to Portsmouth | 3,596.00 mi (5,787.20 km) |
| Middle River to Potters Bar | 3,613.70 mi (5,815.68 km) |
| Middle River to Poulton le Fylde | 3,458.70 mi (5,566.25 km) |
| Middle River to Poynton | 3,502.50 mi (5,636.73 km) |
