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Cheap flights from Montreal to St. Louis from C$ 465

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to St. Louis departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Montreal to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Montreal to St. Louis 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 Montreal to St. Louis.

Cheap last-minute flights

Planning a quick getaway from Montreal to St. Louis? 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 St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Montreal to St. Louis

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

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
3:55 p.m. - 3:21 p.m.YUL-STL
24h 26m1 stop
8:34 p.m. - 4:35 p.m.STL-YUL
19h 01m1 stop
C$ 465
Find Deal
Mon, 9 Dec - Mon, 16 Dec
6:45 a.m. - 11:27 p.m.YUL-STL
17h 42m1 stop
8:34 p.m. - 4:35 p.m.STL-YUL
19h 01m1 stop
C$ 538
Find Deal
Thu, 9 Jan - Mon, 13 Jan
5:35 p.m. - 7:55 p.m.YUL-STL
27h 20m3 stops
12:00 p.m. - 4:35 p.m.STL-YUL
27h 35m3 stops
C$ 692
Find Deal
Thu, 9 Jan - Mon, 13 Jan
5:15 p.m. - 12:32 p.m.YUL-STL
20h 17m1 stop
6:05 a.m. - 9:06 p.m.STL-YUL
14h 01m1 stop
C$ 706Delta
Find Deal
Thu, 9 Jan - Mon, 13 Jan
7:30 a.m. - 12:50 p.m.YUL-STL
6h 20m1 stop
7:18 a.m. - 4:50 p.m.STL-YUL
8h 32m2 stops
C$ 739American Airlines
Find Deal
Thu, 9 Jan - Mon, 13 Jan
7:14 a.m. - 11:59 p.m.YUL-STL
17h 45m1 stop
11:00 a.m. - 10:57 p.m.STL-YUL
10h 57m2 stops
C$ 753American Airlines
Find Deal
Mon, 9 Dec - Mon, 16 Dec
8:25 a.m. - 9:45 p.m.YUL-STL
14h 20m2 stops
5:00 a.m. - 10:32 a.m.STL-YUL
4h 32m1 stop
C$ 874United Airlines
Find Deal
Tue, 24 Dec - Thu, 2 Jan
6:00 a.m. - 10:40 a.m.YUL-STL
5h 40m1 stop
5:17 p.m. - 12:40 a.m.STL-YUL
30h 23m2 stops
C$ 883WestJet
Find Deal
Mon, 16 Dec - Mon, 23 Dec
8:25 a.m. - 9:45 p.m.YUL-STL
14h 20m2 stops
5:00 a.m. - 5:50 p.m.STL-YUL
11h 50m2 stops
C$ 914United Airlines
Find Deal
Tue, 24 Dec - Thu, 2 Jan
7:10 a.m. - 4:59 p.m.YUL-STL
10h 49m1 stop
5:55 p.m. - 11:09 p.m.STL-YUL
4h 14m1 stop
C$ 1,180WestJet
Find Deal
Fri, 20 Dec - Fri, 27 Dec
8:15 a.m. - 3:06 p.m.YUL-STL
7h 51m1 stop
C$ 555Air Canada
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Sat, 21 Dec
3:55 p.m. - 4:26 p.m.YUL-STL
25h 31m1 stop
C$ 573
Find Deal
Sat, 30 Nov
8:50 p.m. - 4:26 p.m.YUL-STL
44h 36m3 stops
C$ 574
Find Deal
Sun, 1 Dec
6:45 a.m. - 4:29 p.m.YUL-STL
10h 44m2 stops
C$ 674WestJet
Find Deal
Sat, 30 Nov
6:45 a.m. - 9:55 p.m.YUL-STL
40h 10m2 stops
C$ 689WestJet
Find Deal
Sun, 1 Dec
6:15 p.m. - 10:47 a.m.YUL-STL
17h 32m2 stops
C$ 696United Airlines
Find Deal
Sat, 21 Dec
7:00 a.m. - 4:25 p.m.YUL-STL
34h 25m3 stops
C$ 741
Find Deal
Sat, 30 Nov
6:09 p.m. - 11:41 p.m.YUL-STL
6h 32m1 stop
C$ 748WestJet
Find Deal
Sun, 1 Dec

Delta flights from Montreal to St. Louis

Our best Delta deals on Montreal to St. Louis flight tickets
Delta
9 Jan
YUL5:15 p.m.Montreal Pierre Elliott Trudeau Intl
20h 17m
1 stop
STL12:32 p.m.Lambert-St Louis
13 Jan
STL6:05 a.m.Lambert-St Louis
14h 01m
1 stop
YUL9:06 p.m.Montreal Pierre Elliott Trudeau Intl
Delta
28 Nov
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
7h 55m
1 stop
STL1:55 p.m.Lambert-St Louis
1 Dec
STL6:30 a.m.Lambert-St Louis
4h 30m
1 stop
YUL12:00 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,112
Find similar

American Airlines flights from Montreal to St. Louis

Our best American Airlines deals on Montreal to St. Louis flight tickets
American Airlines
9 Jan
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
6h 20m
1 stop
STL12:50 p.m.Lambert-St Louis
13 Jan
STL7:18 a.m.Lambert-St Louis
8h 32m
2 stops
YUL4:50 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
9 Dec
YUL7:14 a.m.Montreal Pierre Elliott Trudeau Intl
17h 45m
1 stop
STL11:59 p.m.Lambert-St Louis
16 Dec
STL11:00 a.m.Lambert-St Louis
10h 57m
2 stops
YUL10:57 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
9 Dec
YUL10:59 a.m.Montreal Pierre Elliott Trudeau Intl
12h 06m
2 stops
STL10:05 p.m.Lambert-St Louis
16 Dec
STL11:00 a.m.Lambert-St Louis
10h 57m
2 stops
YUL10:57 p.m.Montreal Pierre Elliott Trudeau Intl

See travel insights to St. Louis from

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

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 from Montreal to St. Louis?

January. The cheapest time of year to fly to St. Louis from Montreal is January. The most expensive is September.

What is the cheapest day to depart Montreal for St. Louis?

Thursday. The cheapest day of the week is typically Thursday. The most expensive is typically Monday

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

In the morning. Montreal to St. Louis flights are approximately 8% more expensive at noon than in the morning

What is the cheapest Montreal to St. Louis flight route?

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

Can stopping save me money on Montreal to St. Louis flights?

You could potentially save up to 17% on your flight if you consider stops on a Montreal to St. Louis flight.

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


When to book flights from Montreal to St. Louis

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

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

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

Best price found

C$ 555

Fastest flight time

5h 40m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Montreal in the past 72 hours is C$ 555. The best round-trip flight deal from Montreal to St. Louis found on momondo in the last 72 hours is C$ 465.
The fastest flight from Montreal to St. Louis takes 5h 40m
There are no direct flights from Montreal to St. Louis. Popular non-direct route for this connection is Montreal Pierre Elliott Trudeau Intl Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

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

    The straight-line distance from Montreal to Lambert-St Louis is 1566.0 km. Flights usually cover this in 5h 40m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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


Best airlines flying from Montreal to St. Louis

Compare and see reviews for airlines that fly from Montreal to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom C$ 290Free CancellationRating
7.4
9,173 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 468Free CancellationRating
7.0
8,238 reviews
Search Air Canada flights
WestJetPriceFrom C$ 616Free CancellationRating
7.3
2,810 reviews
Search WestJet flights

Why use momondo?

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

It is quick and easy to find Montreal to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

Yes. All flights to St. Louis from Montreal on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Montreal to St. Louis 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 Montreal to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Montreal and alert you when they change.


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