| Niagara Falls to Potenza Picena | 4,393.88 mi (7,071.26 km) |
| Niagara Falls to Pozzallo | 4,721.58 mi (7,598.66 km) |
| Niagara Falls to Pozzuoli | 4,518.32 mi (7,271.54 km) |
| Niagara Falls to Prato | 4,270.08 mi (6,872.03 km) |
| Niagara Falls to Preganziol | 4,250.04 mi (6,839.78 km) |
| Niagara Falls to Priolo Gargallo | 4,717.44 mi (7,591.98 km) |
| Niagara Falls to Priverno | 4,452.62 mi (7,165.80 km) |
| Niagara Falls to Pulsano | 4,671.17 mi (7,517.53 km) |
| Niagara Falls to Putignano | 4,641.63 mi (7,469.98 km) |
| Niagara Falls to Qualiano | 4,515.62 mi (7,267.20 km) |
| Niagara Falls to Quarrata | 4,266.69 mi (6,866.57 km) |
| Niagara Falls to Quartu Sant'Elena | 4,370.83 mi (7,034.17 km) |
| Niagara Falls to Quartucciu | 4,370.03 mi (7,032.88 km) |
| Niagara Falls to Quattro Castella | 4,215.29 mi (6,783.85 km) |
| Niagara Falls to Quinto di Treviso | 4,245.45 mi (6,832.38 km) |
