| Niagara Falls to Poyo | 3,457.60 mi (5,564.47 km) |
| Niagara Falls to Pozoblanco | 3,767.08 mi (6,062.53 km) |
| Niagara Falls to Premia de Mar | 3,985.39 mi (6,413.87 km) |
| Niagara Falls to Priego de Cordoba | 3,831.89 mi (6,166.83 km) |
| Niagara Falls to Puente-Genil | 3,806.25 mi (6,125.57 km) |
| Niagara Falls to Puenteareas | 3,473.41 mi (5,589.91 km) |
| Niagara Falls to Puerto de la Cruz | 3,560.78 mi (5,730.52 km) |
| Niagara Falls to Puerto del Rosario | 3,692.17 mi (5,941.98 km) |
| Niagara Falls to Puerto Real | 3,769.27 mi (6,066.05 km) |
| Niagara Falls to Puertollano | 3,790.77 mi (6,100.65 km) |
| Niagara Falls to Puigcerda | 3,932.88 mi (6,329.36 km) |
| Niagara Falls to Pulpi | 3,946.74 mi (6,351.67 km) |
| Niagara Falls to Puzol | 3,933.21 mi (6,329.89 km) |
| Niagara Falls to Quintanar de la Orden | 3,808.74 mi (6,129.58 km) |
| Niagara Falls to Rafelbunol | 3,932.59 mi (6,328.89 km) |
