The flight distance from St Louis Lambert International Airport (STL) in St Louis, United States to Fort Mackay / Firebag (YFI) in Suncor Energy Site, Canada is 2,546 kilometers (1,582 miles / 1,375 nautical miles). The estimated flight time for this route is approximately 4h, flying north northwest at a heading of 331°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

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 09:12 in St Louis, it's 08:12 in Suncor Energy Site.

There is a significant elevation difference of 1,145 feet between the two airports. Fort Mackay / Firebag sits higher than St Louis Lambert International Airport.

The return flight from Suncor Energy Site (YFI) to St Louis (STL) follows a heading of 135° (southeast). 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 Fort Mackay / Firebag (YFI) detail pages, or use our flight duration calculator to compare other routes.