The flight distance from St Louis Lambert International Airport (STL) in St Louis, United States to Marathon Airport (YSP) in Marathon, Canada is 1,159 kilometers (720 miles / 626 nautical miles). The estimated flight time for this route is approximately 2h, flying north northeast at a heading of 15°.

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 an international route connecting United States with Canada. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 16:35 in St Louis, it's 17:35 in Marathon.

The return flight from Marathon (YSP) to St Louis (STL) follows a heading of 198° (south southwest). 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 Marathon Airport (YSP) detail pages, or use our flight duration calculator to compare other routes.