Map of flight path and driving directions from St Louis to Montreal.
Shortest flight path between St. Louis Lambert International Airport (STL) and Montreal Saint-Hubert Longueuil Airport (YHU).
How far is Montreal from St Louis?
There are several ways to calculate distances between St Louis and Montreal. Here are two common 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 earth.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).
Time difference and current local times
The time difference between St Louis and Montreal is 1 hour. Montreal is 1 hour ahead of St Louis.
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 150 kg (330 pounds).
Frequent Flyer Miles Calculator
St Louis (STL) → Montreal (YHU).