| Thornbury to Perth | 332.75 mi (535.51 km) |
| Thornbury to Peterborough | 117.50 mi (189.10 km) |
| Thornbury to Peterhead | 408.70 mi (657.75 km) |
| Thornbury to Peterlee | 223.23 mi (359.25 km) |
| Thornbury to Petersfield | 80.33 mi (129.27 km) |
| Thornbury to Pinner | 91.65 mi (147.50 km) |
| Thornbury to Pitsea | 130.04 mi (209.28 km) |
| Thornbury to Plumstead | 112.64 mi (181.28 km) |
| Thornbury to Plymouth | 110.74 mi (178.21 km) |
| Thornbury to Plympton | 107.46 mi (172.94 km) |
| Thornbury to Plymstock | 110.10 mi (177.19 km) |
| Thornbury to Polegate | 131.62 mi (211.82 km) |
| Thornbury to Ponders End | 106.35 mi (171.15 km) |
| Thornbury to Pont-y-pwl | 23.05 mi (37.09 km) |
| Thornbury to Pontardulais | 65.31 mi (105.10 km) |
