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Flights from St. Louis to Montreal

Cheap flight deals from St. Louis to Montreal

Find flight deals from St. Louis to Montreal for the next 3 months. Book one way flights from AED 1,064 or round trip flights from AED 1,121.

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Deals on upcoming one-way flights from St. Louis to Montreal

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Flight Info | St. Louis to Montreal

The distance between St. Louis and Montreal is about 1,567.27 km. It takes around 2 hours 29 minutes on average to fly from St. Louis to Montreal. The most popular month to Montreal is March. The off-season for travel is April.

Cheapest one-way flight priceAED 435
Cheapest return ticket priceAED 1,121
Off-season for travelApril
Peak season for travelMarch
Flight distance1,567.27 km
Average flight time2 hours 29 minutes

When is the cheapest time to fly from St. Louis to Montreal?

The cheapest time for St. Louis to Montreal flights: Oct 19 to Oct 26 — one way flight prices from AED 431.

Cheapest flights
From price
Search
  • 2128

  • Oct

    285
  • 512
  • 1219
  • 1926

  • Nov

    262
  • 29
  • 916
  • 1623
  • 2330

  • Dec

    307
  • 714
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from St. Louis to Montreal (STL-YMQ)?

    Based on Trip.com data, American Airlines offers one-way fares as low as AED 435 on Cheapest nonstop routes (e.g. STL to YUL on Sat, Oct 25), while American Airlines offers Cheapest nonstop round-trips from AED 1,121 departing on Sat, Oct 18 and returning on Sat, Oct 25.
  • It takes about 2 hours 29 minutes to fly from St. Louis (STL) to Montreal (YMQ).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from St. Louis to Montreal is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from St. Louis to Montreal, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Oct 25, with one-way flights priced at just AED 435.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Canada.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Montreal travel is around March.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from St. Louis to Montreal is April, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from St. Louis to Montreal on September 25, 2025 with American Airlines, with prices starting at AED 1,304.
  • The time difference between Montreal and St. Louis is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

How to find a cheap flight from St. Louis to Montreal

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Montreal. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest St. Louis to Montreal ticket.
Tap "Date" on flight search bar to scan through the calender for St. Louis to Montreal airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Thu, Sep 25 at AED 1064 for one-way flights.
2
Compare cheap St. Louis to Montreal flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from St. Louis to Montreal. The cheapest airline operating is Air Canada.
3
Set up a Price Alert
By setting up a Price Alert for your St. Louis to Montreal route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap St. Louis to Montreal flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from St. Louis to Montreal to get exclusive deals for you.

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