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How far is St Louis, MO, from Montreal?

The distance between Montreal (Montreal Saint-Hubert Longueuil Airport) and St Louis (St. Louis Lambert International Airport) is 986 miles / 1586 kilometers / 856 nautical miles.

The driving distance from Montreal (YHU) to St Louis (STL) is 1094 miles / 1761 kilometers, and travel time by car is about 21 hours 46 minutes.

Montreal Saint-Hubert Longueuil Airport – St. Louis Lambert International Airport

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986
Miles
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1586
Kilometers
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856
Nautical miles

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Distance from Montreal to St Louis

There are several ways to calculate the distance from Montreal to St Louis. Here are two standard methods:

Vincenty's formula (applied above)
  • 985.517 miles
  • 1586.036 kilometers
  • 856.391 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 983.753 miles
  • 1583.197 kilometers
  • 854.858 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Montreal to St Louis?

The estimated flight time from Montreal Saint-Hubert Longueuil Airport to St. Louis Lambert International Airport is 2 hours and 21 minutes.

Flight carbon footprint between Montreal Saint-Hubert Longueuil Airport (YHU) and St. Louis Lambert International Airport (STL)

On average, flying from Montreal to St Louis generates about 150 kg of CO2 per passenger, and 150 kilograms equals 330 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Montreal to St Louis

See the map of the shortest flight path between Montreal Saint-Hubert Longueuil Airport (YHU) and St. Louis Lambert International Airport (STL).

Airport information

Origin Montreal Saint-Hubert Longueuil Airport
City: Montreal
Country: Canada Flag of Canada
IATA Code: YHU
ICAO Code: CYHU
Coordinates: 45°31′3″N, 73°25′0″W
Destination St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W