The flight distance from St Louis Lambert International Airport (STL) in St Louis, United States to Alert Airport (YLT) in Alert, Canada is 4,976 kilometers (3,092 miles / 2,687 nautical miles). The estimated flight time for this route is approximately 7h, flying north at a heading of 5°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

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 12:15 in St Louis, it's 13:15 in Alert.

The return flight from Alert (YLT) to St Louis (STL) follows a heading of 211° (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 Alert Airport (YLT) detail pages, or use our flight duration calculator to compare other routes.