The flight distance from St Louis Lambert International Airport (STL) in St Louis, United States to Boulder Municipal Airport (WBU) in Boulder, United States is 1,283 kilometers (797 miles / 693 nautical miles). The estimated flight time for this route is approximately 3h, flying west at a heading of 281°.

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 13:10 in St Louis, it's 12:10 in Boulder.

There is a significant elevation difference of 4,671 feet between the two airports. Boulder Municipal Airport sits higher than St Louis Lambert International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Boulder (WBU) to St Louis (STL) follows a heading of 92° (east). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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