| Thornton Heath to Perth | 370.64 mi (596.49 km) |
| Thornton Heath to Peterborough | 80.75 mi (129.95 km) |
| Thornton Heath to Peterhead | 427.38 mi (687.79 km) |
| Thornton Heath to Peterlee | 237.60 mi (382.38 km) |
| Thornton Heath to Petersfield | 45.14 mi (72.64 km) |
| Thornton Heath to Pinner | 17.99 mi (28.96 km) |
| Thornton Heath to Pitsea | 28.82 mi (46.39 km) |
| Thornton Heath to Plumstead | 10.57 mi (17.00 km) |
| Thornton Heath to Plymouth | 189.61 mi (305.15 km) |
| Thornton Heath to Plympton | 185.53 mi (298.58 km) |
| Thornton Heath to Plymstock | 187.91 mi (302.42 km) |
| Thornton Heath to Polegate | 42.81 mi (68.89 km) |
| Thornton Heath to Ponders End | 17.20 mi (27.67 km) |
| Thornton Heath to Pont-y-pwl | 127.70 mi (205.51 km) |
| Thornton Heath to Pontardulais | 170.22 mi (273.94 km) |
