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Cheap flights from St. Louis to Montreal from $155

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Montreal departing on 4/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Montreal

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Montreal.
 Logo
6:00 am - 12:37 amSTL-YUL
17h 37m3 stops
 Logo
6:45 am - 3:22 pmYUL-STL
33h 37m3 stops
Sun, Jun 29 - Thu, Jul 3
 Logo
6:10 pm - 10:15 pmSTL-YUL
27h 05m3 stops
 Logo
6:45 am - 6:41 pmYUL-STL
36h 56m3 stops
Thu, May 1 - Thu, May 8
Delta Logo
10:42 am - 4:42 pmSTL-YUL
5h 00m1 stop
Delta Logo
6:05 am - 3:08 pmYUL-STL
10h 03m1 stop
$544Delta
Find Deal
Wed, Apr 30 - Wed, May 28
Delta Logo
6:40 pm - 10:30 amSTL-YUL
14h 50m1 stop
Delta Logo
6:00 am - 5:54 pmYUL-STL
12h 54m1 stop
$545Delta
Find Deal
Tue, Sep 16 - Wed, Sep 24
American Airlines Logo
5:00 am - 11:44 amSTL-YUL
5h 44m1 stop
American Airlines Logo
12:30 pm - 11:51 pmYUL-STL
12h 21m1 stop
$570American Airlines
Find Deal
Sun, May 18 - Sun, May 25
Air Canada Logo
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
Air Canada Logo
6:10 pm - 7:58 pmYUL-STL
2h 48mnonstop
$581Air Canada
Find Deal
Sun, Jun 15 - Sat, Jun 21
American Airlines Logo
5:45 am - 4:45 pmSTL-YUL
10h 00m2 stops
American Airlines Logo
10:44 am - 7:15 pmYUL-STL
9h 31m1 stop
$588American Airlines
Find Deal
Wed, Apr 30 - Wed, May 28
Air Canada Logo
11:20 am - 5:26 pmSTL-YUL
5h 06m1 stop
Air Canada Logo
6:10 pm - 7:58 pmYUL-STL
2h 48mnonstop
$591Air Canada
Find Deal
Sun, Jun 15 - Sat, Jun 21
United Airlines Logo
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
United Airlines Logo
6:10 pm - 7:58 pmYUL-STL
2h 48mnonstop
$603United Airlines
Find Deal
Thu, May 1 - Thu, May 8
United Airlines Logo
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
United Airlines Logo
6:10 pm - 7:58 pmYUL-STL
2h 48mnonstop
$650United Airlines
Find Deal
Sun, May 18 - Sat, Jun 28

Delta flights from St. Louis to Montreal

Our best Delta deals on St. Louis to Montreal flight tickets
Delta
Apr 30
STL10:42 amLambert-St Louis
5h 00m
1 stop
YUL4:42 pmMontreal Pierre Elliott Trudeau Intl
May 28
YUL6:05 amMontreal Pierre Elliott Trudeau Intl
10h 03m
1 stop
STL3:08 pmLambert-St Louis
Delta
Sep 16
STL6:40 pmLambert-St Louis
14h 50m
1 stop
YUL10:30 amMontreal Pierre Elliott Trudeau Intl
Sep 24
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
12h 54m
1 stop
STL5:54 pmLambert-St Louis
Delta
Sep 15
STL6:00 amLambert-St Louis
14h 26m
1 stop
YUL9:26 pmMontreal Pierre Elliott Trudeau Intl
Sep 24
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
12h 54m
1 stop
STL5:54 pmLambert-St Louis

American Airlines flights from St. Louis to Montreal

Our best American Airlines deals on St. Louis to Montreal flight tickets
American Airlines
May 18
STL5:00 amLambert-St Louis
5h 44m
1 stop
YUL11:44 amMontreal Pierre Elliott Trudeau Intl
May 25
YUL12:30 pmMontreal Pierre Elliott Trudeau Intl
12h 21m
1 stop
STL11:51 pmLambert-St Louis
American Airlines
Apr 30
STL5:45 amLambert-St Louis
10h 00m
2 stops
YUL4:45 pmMontreal Pierre Elliott Trudeau Intl
May 28
YUL10:44 amMontreal Pierre Elliott Trudeau Intl
9h 31m
1 stop
STL7:15 pmLambert-St Louis
American Airlines
May 18
STL1:59 pmLambert-St Louis
7h 45m
1 stop
YUL10:44 pmMontreal Pierre Elliott Trudeau Intl
Jun 28
YUL2:35 pmMontreal Pierre Elliott Trudeau Intl
10h 24m
1 stop
STL11:59 pmLambert-St Louis

See travel insights to Montreal from

How to get the cheapest flight ticket from St. Louis to Montreal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Montreal?

What is the cheapest month to fly to Montreal?

The cheapest month to fly to Montreal from St. Louis is in November. Flight prices, which tend to average around $471, are often lower during this time because this is during the off-season. If you are unable to visit Montreal during the month of November, then departing from St. Louis during the month August is also very affordable. Most momondo users find prices during this month for around $538.

What is the cheapest day to depart on your flight to Montreal?

The cheapest day to depart from St. Louis to Montreal is on a Tuesday when prices can be found for as low as $1,052. Flights from St. Louis to Montreal on a Saturday will generally be more expensive and average around $1,274. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Montreal?

Our most recent data shows that the best time of day to fly to Montreal is in the evening. Flights from St. Louis to Montreal during this time can be as low as $266. At noon is when there is more demand to fly to Montreal, so prices are often more expensive at around $1,216 per ticket.

What is the cheapest Lambert-St Louis to Montreal flight route?

Fly from Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl for the best Lambert-St Louis - Montreal flight prices

What cabin class options are available on Lambert-St Louis to Montreal flights?

There are 4 cabin classes available to choose from on Lambert-St Louis to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

When to book flights from St. Louis to Montreal

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Montreal according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Montreal (STL to YMQ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Montreal

Best Price Found

$155

Fastest flight time

2h 30m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sun

Airports in Montreal

1 airport
The best one-way flight to Montreal from St. Louis in the past 72 hours is $155. The best round-trip flight deal from St. Louis to Montreal found on momondo in the last 72 hours is $443.
The fastest flight from St. Louis to Montreal takes 2h 30m
Direct flights go from St. Louis to Montreal on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. Airlines offering direct flights are: United Airlines and Air Canada.
There is 1 airport near Montreal: Montreal Pierre Elliott Trudeau Intl (YUL)

  • How far is Lambert-St Louis to Montreal by plane?

    The distance between Lambert-St Louis and Montreal is about 973.0 mi. A reasonable flight in good conditions will take 2h 30m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Montreal?

    Prices for flights from Lambert-St Louis Airport to Montreal are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Montreal?

  • How old do you have to be to fly from Lambert-St Louis Airport to Montreal?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Montreal.

  • What documentation or ID do you need to fly to Montreal?

    The required travel and health documents for your Montreal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Montreal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from St. Louis to Montreal?

  • What is the most popular airline from St. Louis to Montreal?


Best airlines flying from St. Louis to Montreal

Compare and see reviews for airlines that fly from St. Louis to Montreal with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $246Free CancellationRating
7.4
8,619 reviews
Search United Airlines flights
Air CanadaPriceFrom $259Free CancellationRating
7.0
9,035 reviews
Search Air Canada flights
American AirlinesPriceFrom $330Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $497Free CancellationRating
8.0
7,897 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Montreal?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Montreal for you.

Can I find flights from St. Louis to Montreal with flexible booking policies on momondo?

All flight searches from St. Louis to Montreal on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Montreal?

Once all potential St. Louis to Montreal flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Montreal right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Montreal flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Wed 4/9
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Find better results for your trip to Canada

Fly into one of these airports located in Montreal

Airports listed have a maximum distance of 9.4 mi from Montreal