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Cheap flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport from $125

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 Pierre Elliott Trudeau Intl Airport departing on 2/27. 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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Find the cheapest flights from St. Louis to Montreal

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Montreal that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Montreal.

Cheap last minute flights

Planning a quick getaway from St. Louis to Montreal? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Montreal, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Montreal

Find recent round-trip train or bus tickets from St. Louis to Montreal.

All round-trip flight deals from St. Louis to Montreal

The cheapest plane tickets from St. Louis to Montreal found on KAYAK recently.
5:15 pm - 6:15 pmSTL-YUL
24h 00m3 stops
6:50 am - 11:30 amYUL-STL
29h 40m3 stops
Fri, Feb 14 - Sun, Feb 16
6:06 am - 4:19 pmSTL-YUL
9h 13m1 stop
6:00 am - 2:49 pmYUL-STL
9h 49m1 stop
$479Delta
Find Deal
Wed, Mar 5 - Wed, Mar 12
4:58 pm - 10:05 amSTL-YUL
16h 07m1 stop
5:35 pm - 11:34 amYUL-STL
18h 59m1 stop
$521American Airlines
Find Deal
Wed, Feb 19 - Wed, Feb 26
7:20 am - 4:50 pmSTL-YUL
8h 30m1 stop
7:14 am - 2:26 pmYUL-STL
8h 12m1 stop
$570American Airlines
Find Deal
Wed, Feb 12 - Sat, Feb 15
5:50 pm - 11:22 pmSTL-YUL
4h 32m1 stop
6:00 am - 12:28 pmYUL-STL
7h 28m1 stop
$613WestJet
Find Deal
Fri, Feb 14 - Sun, Feb 16
6:50 am - 11:58 amSTL-YUL
4h 08m1 stop
6:05 am - 11:03 pmYUL-STL
17h 58m1 stop
$650WestJet
Find Deal
Wed, Mar 19 - Sat, Mar 22
6:30 am - 5:19 pmSTL-YUL
9h 49m1 stop
8:50 am - 5:11 pmYUL-STL
9h 21m2 stops
$738Air Canada
Find Deal
Mon, Mar 24 - Sat, Mar 29
3:50 pm - 11:48 pmSTL-YUL
6h 58m1 stop
8:50 am - 3:40 pmYUL-STL
7h 50m2 stops
$740Air Canada
Find Deal
Fri, Feb 14 - Mon, Feb 17
8:00 am - 5:17 pmSTL-YUL
8h 17m2 stops
7:00 am - 2:31 pmYUL-STL
8h 31m2 stops
$748United Airlines
Find Deal
Mon, Mar 24 - Sat, Mar 29
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
6:10 pm - 8:01 pmYUL-STL
2h 51mnonstop
$779United Airlines
Find Deal
Sun, Jun 1 - Mon, Jun 9
4:00 pm - 3:10 pmSTL-YUL
22h 10m1 stop
Thu, Feb 27
5:20 pm - 2:40 pmSTL-YUL
20h 20m1 stop
Wed, Feb 26
5:20 pm - 2:40 pmSTL-YUL
20h 20m1 stop
Wed, Feb 26
5:20 pm - 2:40 pmSTL-YUL
20h 20m1 stop
Wed, Feb 26
5:45 am - 4:55 pmSTL-YUL
10h 10m2 stops
$259American Airlines
Find Deal
Thu, Feb 27
5:33 pm - 6:45 amSTL-YUL
12h 12m2 stops
$344United Airlines
Find Deal
Sat, Mar 8
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
$364United Airlines
Find Deal
Fri, Jun 13
2:18 pm - 11:09 pmSTL-YUL
7h 51m1 stop
$368Delta
Find Deal
Fri, Jun 13
6:00 am - 3:25 pmSTL-YUL
8h 25m1 stop
$380American Airlines
Find Deal
Sat, Mar 8
6:30 am - 4:27 pmSTL-YUL
32h 57m2 stops
$437WestJet
Find Deal
Fri, Jun 13
5:05 pm - 2:10 pmSTL-YUL
20h 05m1 stop
6:45 am - 11:31 pmYUL-STL
17h 46m1 stop
Thu, Jan 23 - Thu, Jan 30
4:28 pm - 2:10 pmSTL-YUL
20h 42m2 stops
6:30 am - 2:43 pmYUL-STL
9h 13m1 stop
Thu, Jan 23 - Thu, Jan 30
4:28 pm - 2:10 pmSTL-YUL
20h 42m2 stops
3:55 pm - 8:10 pmYUL-STL
29h 15m3 stops
Thu, Jan 23 - Thu, Jan 30
1:00 pm - 6:00 pmSTL-YUL
28h 00m3 stops
6:30 am - 2:43 pmYUL-STL
9h 13m1 stop
Thu, Jan 23 - Thu, Jan 30
1:00 pm - 7:25 pmSTL-YUL
29h 25m3 stops
3:55 pm - 8:10 pmYUL-STL
29h 15m3 stops
Thu, Jan 23 - Thu, Jan 30
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
6:10 pm - 8:01 pmYUL-STL
2h 51mnonstop
$779United Airlines
Find Deal
Sun, Jun 1 - Mon, Jun 9
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
6:10 pm - 8:01 pmYUL-STL
2h 51mnonstop
$851United Airlines
Find Deal
Fri, Jun 13 - Tue, Jun 17
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
6:10 pm - 8:01 pmYUL-STL
2h 51mnonstop
$893Air Canada
Find Deal
Sun, Jun 1 - Sun, Jun 8
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
6:10 pm - 8:00 pmYUL-STL
2h 50mnonstop
$1,056Air Canada
Find Deal
Sun, Jun 15 - Sat, Jun 21
1:30 pm - 5:00 pmSTL-YUL
2h 30mnonstop
6:10 pm - 8:00 pmYUL-STL
2h 50mnonstop
$1,170Air Canada
Find Deal
Tue, Jun 3 - Wed, Jun 18

Air Canada flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

Our best Air Canada deals on St. Louis to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
Air Canada
Mar 24
STL6:30 amLambert-St Louis
9h 49m
1 stop
YUL5:19 pmMontreal Pierre Elliott Trudeau Intl
Mar 29
YUL8:50 amMontreal Pierre Elliott Trudeau Intl
9h 21m
2 stops
STL5:11 pmLambert-St Louis
Air Canada
Feb 14
STL3:50 pmLambert-St Louis
6h 58m
1 stop
YUL11:48 pmMontreal Pierre Elliott Trudeau Intl
Feb 17
YUL8:50 amMontreal Pierre Elliott Trudeau Intl
7h 50m
2 stops
STL3:40 pmLambert-St Louis
Air Canada
Mar 19
STL3:30 pmLambert-St Louis
8h 18m
2 stops
YUL12:48 amMontreal Pierre Elliott Trudeau Intl
Mar 22
YUL8:50 amMontreal Pierre Elliott Trudeau Intl
7h 41m
2 stops
STL3:31 pmLambert-St Louis

United Airlines flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

Our best United Airlines deals on St. Louis to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
United Airlines
Mar 24
STL8:00 amLambert-St Louis
8h 17m
2 stops
YUL5:17 pmMontreal Pierre Elliott Trudeau Intl
Mar 29
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
8h 31m
2 stops
STL2:31 pmLambert-St Louis
United Airlines
Jun 1
STL1:30 pmLambert-St Louis
2h 30m
YUL5:00 pmMontreal Pierre Elliott Trudeau Intl
Jun 9
YUL6:10 pmMontreal Pierre Elliott Trudeau Intl
2h 51m
STL8:01 pmLambert-St Louis
United Airlines
Jun 1
STL8:10 amLambert-St Louis
8h 49m
1 stop
YUL5:59 pmMontreal Pierre Elliott Trudeau Intl
Jun 6
YUL6:10 pmMontreal Pierre Elliott Trudeau Intl
2h 51m
STL8:01 pmLambert-St Louis

See travel insights to Montreal from

How to get the cheapest flight ticket from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

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 cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport?

The month of March is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from St. Louis averaging around $492.

What is the cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

The cheapest day to depart from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport is on a Tuesday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Tuesday will often find tickets for as low as $1,093. Flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport on a Saturday will generally be more expensive and average around $1,372. 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 Pierre Elliott Trudeau Intl Airport?

In the evening is the cheapest time of day to fly from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as $282. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $606.

What is the cheapest Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl flight route?

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

What cabin class options are available on Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl flights?

There are 3 cabin classes available to choose from on Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport

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

Cheap St. Louis to Montreal Pierre Elliott Trudeau Intl Airport (STL to YUL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

Best Price Found

$125

Fastest flight time

2h 30m

Direct flights

Mon, Wed and Sat
The best one-way flight to Montreal Pierre Elliott Trudeau Intl Airport from St. Louis in the past 72 hours is $125. The best round-trip flight deal from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport found on momondo in the last 72 hours is $465.
The fastest flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport takes 2h 30m
Direct flights go from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport on Monday, Wednesday and Saturday. Airlines offering direct flights are: United Airlines and Air Canada.

  • How far is Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl by plane?

    There are 963.7 mi between Lambert-St Louis and Montreal Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Montreal Pierre Elliott Trudeau Intl Airport are updated daily.

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

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

    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 Pierre Elliott Trudeau Intl Airport.

  • What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?

    The required travel and health documents for your Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport. 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 Pierre Elliott Trudeau Intl Airport?

  • What is the most popular airline from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?


Best airlines flying from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

Compare and see reviews for airlines that fly from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $261Free CancellationRating
7.4
8,975 reviews
Search United Airlines flights
Air CanadaPriceFrom $267Free CancellationRating
7.0
8,635 reviews
Search Air Canada flights
American AirlinesPriceFrom $330Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $383Free CancellationRating
8.0
8,514 reviews
Search Delta flights

Traveling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
Laval
Longueuil
Dorval
Brossard
Cornwall
Saint-Sauveur
Trois-Rivières
Sherbrooke
Saint-Jean-sur-Richelieu
Drummondville
Magog
Bromont
Boucherville
Montebello
Sutton
North Hatley

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Montreal. momondo saves you time and could save you money on your trip.

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 offers price alerts on flights to Montreal from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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