| Niagara Falls to Piedras Blancas | 3,544.90 mi (5,704.97 km) |
| Niagara Falls to Piera | 3,957.19 mi (6,368.49 km) |
| Niagara Falls to Pilar de la Horadada | 3,974.59 mi (6,396.49 km) |
| Niagara Falls to Pilas | 3,736.85 mi (6,013.88 km) |
| Niagara Falls to Pinos Puente | 3,858.81 mi (6,210.15 km) |
| Niagara Falls to Pinto | 3,755.82 mi (6,044.41 km) |
| Niagara Falls to Pizarra | 3,831.47 mi (6,166.16 km) |
| Niagara Falls to Plasencia | 3,653.16 mi (5,879.19 km) |
| Niagara Falls to Pola de Laviana | 3,573.79 mi (5,751.47 km) |
| Niagara Falls to Pola de Lena | 3,563.95 mi (5,735.63 km) |
| Niagara Falls to Pola de Siero | 3,564.99 mi (5,737.30 km) |
| Niagara Falls to Pollensa | 4,073.42 mi (6,555.54 km) |
| Niagara Falls to Ponferrada | 3,548.70 mi (5,711.07 km) |
| Niagara Falls to Pontevedra | 3,459.13 mi (5,566.93 km) |
| Niagara Falls to Portugalete | 3,684.41 mi (5,929.48 km) |
