Distance From Thetford Mines Airport to St Louis Lambert International Airport

The distance from Thetford Mines Airport () to St Louis Lambert International Airport (STL) is 1095 miles or 1761 kilometers or 951 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Thetford Mines ( Canada ) to St Louis ( United States )?

A one-way nonstop (direct) flight between Thetford Mines and St Louis takes around 2 hours 30 minutes.

Estimated flight time from Thetford Mines Airport, Thetford Mines, Canada to St Louis Lambert International Airport, St Louis, United States is 2 hours 30 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - STL

Kilometers		1761 km
Statute Miles		1095 miles
Nautical Miles		951 nm
Avg. Time of Flight		2 hours 30 minutes

Thetford Mines Airport to St Louis Lambert International Airport Flight Route Map - to STL Flight Path

Location of Thetford Mines Airport & St Louis Lambert International Airport is given below.
Click the map to view Thetford Mines to St Louis nonstop flight path and travel direction.

Click to see flight route on Google Map between Thetford Mines, Canada and St Louis, United States. .

Nonstop flight route between Thetford Mines, Canada and St Louis, United States.

Time Difference Between the Airports • - STL

Time difference between Thetford Mines (Canada) and St Louis (United States) is 1 Hours.
St Louis time is 1 Hours behind Thetford Mines.

Location	Local Time
Thetford Mines (Canada)	2026-08-02, 15:25:19 ADT
St Louis (United States)	2026-08-02, 14:25:19 EDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Thetford Mines Airport ( / CSM3) Thetford Mines, Canada

Destination

St Louis Lambert International Airport (STL / KSTL) St Louis, United States