| Niagara Falls to Imst | 4,128.56 mi (6,644.28 km) |
| Niagara Falls to Innsbruck | 4,153.42 mi (6,684.28 km) |
| Niagara Falls to Judenburg | 4,284.90 mi (6,895.88 km) |
| Niagara Falls to Kapfenberg | 4,298.75 mi (6,918.17 km) |
| Niagara Falls to Klagenfurt | 4,292.57 mi (6,908.23 km) |
| Niagara Falls to Klosterneuburg | 4,303.88 mi (6,926.43 km) |
| Niagara Falls to Knittelfeld | 4,289.79 mi (6,903.75 km) |
| Niagara Falls to Koflach | 4,305.76 mi (6,929.45 km) |
| Niagara Falls to Korneuburg | 4,302.88 mi (6,924.82 km) |
| Niagara Falls to Krems an der Donau | 4,273.01 mi (6,876.75 km) |
| Niagara Falls to Kufstein | 4,172.05 mi (6,714.26 km) |
| Niagara Falls to Laakirchen | 4,221.29 mi (6,793.52 km) |
| Niagara Falls to Lauterach | 4,079.89 mi (6,565.95 km) |
| Niagara Falls to Leibnitz | 4,334.51 mi (6,975.71 km) |
| Niagara Falls to Leoben | 4,293.61 mi (6,909.90 km) |
