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YMX to STL: distance & flight time
Montreal (Montreal International (Mirabel) Airport) → St. Louis (St Louis Lambert International Airport)
961 mi
1,546 km · 835 nm
2h 33m
estimated nonstop flight time
-1h
time difference · heading southwest
See live YMX→STL fares Phone-only fares on this route — call free
Flight time details
961 miles nonstop takes roughly 2h 33m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- YMX — Montreal International (Mirabel) Airport · Montreal, Canada
- STL — St Louis Lambert International Airport · St. Louis, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near YMX
- YUL · Montreal / Pierre Elliott Trudeau International Airport20 mi away
- YHU · Montréal / Saint-Hubert Airport32 mi away
- YJN · St Jean Airport45 mi away
- YCC · Cornwall Regional Airport48 mi away
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Frequently asked questions
How far is YMX from STL?
The flight distance from Montreal (YMX) to St. Louis (STL) is 961 miles (1,546 km, 835 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YMX to STL?
A nonstop flight takes about 2h 33m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Montreal and St. Louis?
St. Louis is 1 hour behind Montreal.
What is the cheapest way to fly from YMX to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YMX–STL that never appear on search engines, with no booking fees.