| Johnston to Perth | 3,904.10 mi (6,283.05 km) |
| Johnston to Peterborough | 4,143.17 mi (6,667.79 km) |
| Johnston to Peterhead | 3,925.15 mi (6,316.91 km) |
| Johnston to Peterlee | 4,029.25 mi (6,484.46 km) |
| Johnston to Petersfield | 4,172.62 mi (6,715.18 km) |
| Johnston to Pinner | 4,171.98 mi (6,714.16 km) |
| Johnston to Pitsea | 4,205.65 mi (6,768.34 km) |
| Johnston to Plumstead | 4,193.31 mi (6,748.47 km) |
| Johnston to Plymouth | 4,073.23 mi (6,555.22 km) |
| Johnston to Plympton | 4,076.23 mi (6,560.06 km) |
| Johnston to Plymstock | 4,075.72 mi (6,559.24 km) |
| Johnston to Polegate | 4,223.14 mi (6,796.48 km) |
| Johnston to Ponders End | 4,182.72 mi (6,731.44 km) |
| Johnston to Pont-y-pwl | 4,069.87 mi (6,549.82 km) |
| Johnston to Pontardulais | 4,032.22 mi (6,489.24 km) |
