| Merriam to Piedras Blancas | 4,386.31 mi (7,059.08 km) |
| Merriam to Piera | 4,794.07 mi (7,715.32 km) |
| Merriam to Pilar de la Horadada | 4,825.55 mi (7,765.98 km) |
| Merriam to Pilas | 4,594.30 mi (7,393.82 km) |
| Merriam to Pinos Puente | 4,714.18 mi (7,586.74 km) |
| Merriam to Pinto | 4,604.40 mi (7,410.06 km) |
| Merriam to Pizarra | 4,688.51 mi (7,545.43 km) |
| Merriam to Plasencia | 4,505.01 mi (7,250.12 km) |
| Merriam to Pola de Laviana | 4,415.75 mi (7,106.46 km) |
| Merriam to Pola de Lena | 4,406.53 mi (7,091.63 km) |
| Merriam to Pola de Siero | 4,406.56 mi (7,091.68 km) |
| Merriam to Pollensa | 4,913.62 mi (7,907.70 km) |
| Merriam to Ponferrada | 4,394.23 mi (7,071.82 km) |
| Merriam to Pontevedra | 4,307.41 mi (6,932.11 km) |
| Merriam to Portugalete | 4,522.47 mi (7,278.21 km) |
