| Niagara Falls to Plombieres | 3,819.87 mi (6,147.48 km) |
| Niagara Falls to Pont-a-Celles | 3,764.99 mi (6,059.16 km) |
| Niagara Falls to Poperinge | 3,690.39 mi (5,939.11 km) |
| Niagara Falls to Profondeville | 3,789.23 mi (6,098.18 km) |
| Niagara Falls to Putte | 3,758.84 mi (6,049.26 km) |
| Niagara Falls to Puurs | 3,744.33 mi (6,025.92 km) |
| Niagara Falls to Quaregnon | 3,748.11 mi (6,032.00 km) |
| Niagara Falls to Raeren | 3,827.93 mi (6,160.46 km) |
| Niagara Falls to Ranst | 3,750.95 mi (6,036.57 km) |
| Niagara Falls to Ravels | 3,763.14 mi (6,056.18 km) |
| Niagara Falls to Retie | 3,768.83 mi (6,065.34 km) |
| Niagara Falls to Riemst | 3,803.97 mi (6,121.90 km) |
| Niagara Falls to Rijkevorsel | 3,754.67 mi (6,042.55 km) |
| Niagara Falls to Rixensart | 3,765.36 mi (6,059.76 km) |
| Niagara Falls to Rochefort | 3,809.52 mi (6,130.83 km) |
