The flight distance from Niagara Falls International Airport (IAG) in Niagara Falls, United States to St Louis Lambert International Airport (STL) in St Louis, United States is 1,074 kilometers (667 miles / 580 nautical miles). The estimated flight time for this route is approximately 2h, flying west southwest at a heading of 247°.

This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 1-hour time difference between the two cities.

Time zone information: When it's 14:46 in Niagara Falls, it's 13:46 in St Louis.

The return flight from St Louis (STL) to Niagara Falls (IAG) follows a heading of 60° (east northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Niagara Falls International Airport (IAG) and St Louis Lambert International Airport (STL) detail pages, or use our flight duration calculator to compare other routes.