| Niagara Falls to Dabrowa Gornicza | 4,329.34 mi (6,967.41 km) |
| Niagara Falls to Dabrowa Tarnowska | 4,399.77 mi (7,080.74 km) |
| Niagara Falls to Darlowo | 4,074.52 mi (6,557.31 km) |
| Niagara Falls to Debica | 4,419.98 mi (7,113.27 km) |
| Niagara Falls to Deblin | 4,372.80 mi (7,037.34 km) |
| Niagara Falls to Debno | 4,076.51 mi (6,560.50 km) |
| Niagara Falls to Dobre Miasto | 4,225.56 mi (6,800.38 km) |
| Niagara Falls to Drawsko Pomorskie | 4,086.00 mi (6,575.79 km) |
| Niagara Falls to Drezdenko | 4,112.96 mi (6,619.17 km) |
| Niagara Falls to Dzialdowo | 4,248.12 mi (6,836.69 km) |
| Niagara Falls to Dzierzoniow | 4,221.78 mi (6,794.30 km) |
| Niagara Falls to Elblag | 4,185.24 mi (6,735.49 km) |
| Niagara Falls to Elk | 4,297.50 mi (6,916.16 km) |
| Niagara Falls to Garwolin | 4,351.26 mi (7,002.68 km) |
| Niagara Falls to Gdansk | 4,152.96 mi (6,683.55 km) |
