| Niagara Falls to Nowy Dwor Mazowiecki | 4,298.18 mi (6,917.26 km) |
| Niagara Falls to Nowy Sacz | 4,411.95 mi (7,100.35 km) |
| Niagara Falls to Nowy Targ | 4,393.90 mi (7,071.31 km) |
| Niagara Falls to Nowy Tomysl | 4,142.81 mi (6,667.21 km) |
| Niagara Falls to Nysa | 4,256.52 mi (6,850.20 km) |
| Niagara Falls to Oborniki | 4,154.41 mi (6,685.87 km) |
| Niagara Falls to Oborniki Slaskie | 4,208.88 mi (6,773.54 km) |
| Niagara Falls to Olawa | 4,237.31 mi (6,819.29 km) |
| Niagara Falls to Olecko | 4,293.44 mi (6,909.62 km) |
| Niagara Falls to Olesnica | 4,229.96 mi (6,807.46 km) |
| Niagara Falls to Olesno | 4,279.68 mi (6,887.48 km) |
| Niagara Falls to Olkusz | 4,344.51 mi (6,991.81 km) |
| Niagara Falls to Olsztyn | 4,236.60 mi (6,818.16 km) |
| Niagara Falls to Opalenica | 4,153.09 mi (6,683.74 km) |
| Niagara Falls to Opoczno | 4,325.82 mi (6,961.74 km) |
