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Flights Montreal — St. Louis

Montreal
YMQ
Saint Louis
STL

Cheap flights Montreal — St. Louis

Below you can see the best deals on flights Montreal — St. Louis for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 29 July, from AED 1,028.

Top 10 cheap flights Montreal — St. Louis

Direct flights Montreal — St. Louis

Direct flight options for Montreal — St. Louis with no stopovers on upcoming dates. A direct flight is faster and more convenient — especially when travelling with luggage or children.

The fastest direct flight is operated by Air Canada — travel time is 2 h 47 min.

Top 10 direct flights Montreal — St. Louis

About the Montreal — St. Louis flight

On this page, you can find and book flights from Montreal to St. Louis. The distance between the cities is approximately 1,570 km, and the flight frequency reaches 6 flights per week. Before your trip, we recommend exploring options for how to get to the airport in Montreal and ways to reach your final destination from St. Louis airport.

The main carrier on this route is Air Canada (AC). Ticket prices fluctuate based on demand, so to find the best deals, use the low-price calendar and the price trend chart on this page.

Flight schedule Montreal — St. Louis

The table shows direct flights Montreal → St. Louis on the selected date. The flight takes approximately 2 h 47 min. Regular flights are operated by Air Canada. Departures from Montreal-Pierre Elliott Trudeau International Airport and St. Hubert Airport airports, arrivals at Lambert-St. Louis International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
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Flight ticket prices by day: Montreal — St. Louis

Below is a calendar of the lowest flight ticket prices for Montreal — St. Louis by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 948 in F, and the most expensive are around AED 1,028 in y. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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When to fly

Peak temperatures in St. Louis occur in July, with an average daytime temperature of around 31.4°C. January is considered the coolest period, when temperatures drop to -3.1°C and the number of sunny days is at its lowest.

According to current data, the most affordable tickets are available for September, priced AED 948. During the height of the summer season in July, flight costs increase and start AED 1,028.

The optimal time for a trip is September, when the heat subsides to a comfortable 27.8°C and flight prices reach their minimum. We recommend avoiding travel in May due to the highest rainfall levels of the year.

Temperature · St. Louis

Dry and wet days · St. Louis

Wind speed and direction · St. Louis

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How to get the best deal on a Montreal — St. Louis ticket

  • To secure the best fares from Air Canada, try to book your tickets 4–6 weeks before departure, as prices increase significantly closer to the date.
  • Use the low-price calendar on this page to compare departure costs for different days of the week — flights on Tuesdays and Wednesdays are often cheaper than on weekends.
  • Pay attention to AC baggage rules: basic fares may only include carry-on luggage, and adding a suitcase during the booking process is usually cheaper than at the airport.
  • Monitor the price trend chart to catch the moment when the cost drops below AED 962, which is a good indicator for this route.

Airlines

Regular flights between the cities are provided by Air Canada, which operates around 6 flights per week. This is the main carrier offering the most consistent schedule on this route. You can find detailed information on departure times, aircraft types, and connection options in the interactive list below: simply select an airline card to view the detailed schedule.

  • Air CanadaAC
    6x/week
    WebsiteFleet: 20346M pax/year
    • Direct flight YUL → STL6x/week
      Duration
      2h 47m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the Montreal — St. Louis route

Flights Montreal — St. Louis depart from Montreal-Pierre Elliott Trudeau International Airport and St. Hubert Airport and arrive at Lambert-St. Louis International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Montreal

YMQ
Canada
About the cityHow to get thereWeatherAll about the country Canada
Arrival

St. Louis

STL
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

Interesting articles about St. Louis

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Frequently asked questions about the Montreal — St. Louis flight

How long is the flight from Montreal to St. Louis?

A flight on this 1,570 km route takes an average of 2 to 2.5 hours of actual flying time. The total duration depends on connections and weather conditions.

Which airlines fly from Montreal to St. Louis?

On this route, the key carrier is Air Canada (AC), providing regular service between the cities.

How much is the cheapest flight?

Airfares are dynamic and depend on the season. To find the current minimum for your dates, we recommend using the low-price calendar on this page.

Which airport does the flight arrive at?

Flights from Montreal arrive at St. Louis Lambert International Airport (STL).

When is the best time to buy a ticket?

It is most practical to book your flight in advance, ideally 1–2 months before your trip. It is also worth tracking prices for nearby dates, as the difference in cost can be significant.

Where else you can fly from Montreal

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TorontoNew York CityChicagoOttawaQuebec CityWashington, D.C.HalifaxCalgaryVancouverParisDetroitBostonEdmontonSt. John'sFrederictonAtlantaPhiladelphiaMiamiMinneapolisMonctonLondonWinnipegOrlandoCancunFort LauderdalePunta CanaNashvilleSan FranciscoRomeCharlottetownLos AngelesCasablancaFrankfurt am MainLas VegasRaleighSan DiegoDallasLisbonSidneyAlgiers

Where else you can fly from St. Louis

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ChicagoDallasNew York CityAtlantaSeattleMinneapolisTorontoDenverHoustonCharlotteWashington, D.C.DetroitBostonPortlandOrlandoPhoenixPhiladelphiaMiamiSalt Lake CityLos AngelesLas VegasCancunFort LauderdaleJonesboroSan FranciscoLondonTampaFrankfurt am MainPunta CanaQuincy
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