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Cheap flights from Montreal to St. Louis from C$ 480

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 2/12. 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. - 4:26 p.m.YUL-STL
25h 31m1 stop
8:34 p.m. - 4:35 p.m.STL-YUL
19h 01m1 stop
C$ 480
Find Deal
Mon, 2 Dec - Mon, 9 Dec
3:55 p.m. - 4:26 p.m.YUL-STL
25h 31m1 stop
8:34 p.m. - 4:35 p.m.STL-YUL
19h 01m1 stop
C$ 598
Find Deal
Mon, 2 Dec - Fri, 6 Dec
7:30 a.m. - 12:11 p.m.YUL-STL
5h 41m1 stop
6:30 a.m. - 12:20 p.m.STL-YUL
4h 50m1 stop
C$ 731American Airlines
Find Deal
Wed, 25 Dec - Tue, 31 Dec
7:13 a.m. - 7:00 p.m.YUL-STL
12h 47m1 stop
5:03 a.m. - 1:35 p.m.STL-YUL
7h 32m1 stop
C$ 743American Airlines
Find Deal
Tue, 24 Dec - Thu, 2 Jan
7:55 a.m. - 3:34 p.m.YUL-STL
8h 39m2 stops
6:30 a.m. - 3:58 p.m.STL-YUL
8h 28m2 stops
C$ 766United Airlines
Find Deal
Thu, 5 Dec - Thu, 9 Jan
1:25 p.m. - 9:45 p.m.YUL-STL
9h 20m2 stops
5:00 a.m. - 10:32 a.m.STL-YUL
4h 32m1 stop
C$ 785United Airlines
Find Deal
Wed, 25 Dec - Mon, 30 Dec
6:00 a.m. - 12:26 p.m.YUL-STL
7h 26m1 stop
5:00 a.m. - 10:32 a.m.STL-YUL
4h 32m1 stop
C$ 823Air Canada
Find Deal
Fri, 27 Dec - Tue, 31 Dec
6:45 a.m. - 11:57 a.m.YUL-STL
30h 12m2 stops
11:25 a.m. - 11:58 a.m.STL-YUL
23h 33m1 stop
C$ 827WestJet
Find Deal
Mon, 2 Dec - Fri, 6 Dec
6:45 a.m. - 11:41 p.m.YUL-STL
17h 56m2 stops
3:40 p.m. - 12:40 a.m.STL-YUL
32h 00m2 stops
C$ 881WestJet
Find Deal
Mon, 2 Dec - Mon, 9 Dec
8:15 a.m. - 3:06 p.m.YUL-STL
7h 51m1 stop
5:00 a.m. - 10:32 a.m.STL-YUL
4h 32m1 stop
C$ 904Air Canada
Find Deal
Sat, 21 Dec - Sun, 29 Dec
YUL-STL
2h 48mdirect
Air Canada
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YUL-STL
2h 48mdirect
United Airlines
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6:45 a.m. - 7:56 a.m.YUL-STL
26h 11m1 stop
5:29 p.m. - 2:55 p.m.STL-YUL
20h 26m1 stop
C$ 754
Find Deal
Thu, 7 Nov - Thu, 14 Nov
10:00 a.m. - 7:10 p.m.YUL-STL
10h 10m2 stops
6:00 a.m. - 4:59 p.m.STL-YUL
9h 59m1 stop
C$ 1,245Delta
Find Deal
Thu, 7 Nov - Thu, 14 Nov
6:45 a.m. - 4:10 p.m.YUL-STL
10h 25m2 stops
10:14 a.m. - 12:40 a.m.STL-YUL
13h 26m2 stops
C$ 1,410WestJet
Find Deal
Thu, 7 Nov - Thu, 14 Nov

United Airlines flights from Montreal to St. Louis

Our best United Airlines deals on Montreal to St. Louis flight tickets
United Airlines
5 Dec
YUL7:55 a.m.Montreal Pierre Elliott Trudeau Intl
8h 39m
2 stops
STL3:34 p.m.Lambert-St Louis
9 Jan
STL6:30 a.m.Lambert-St Louis
8h 28m
2 stops
YUL3:58 p.m.Montreal Pierre Elliott Trudeau Intl
United Airlines
25 Dec
YUL1:25 p.m.Montreal Pierre Elliott Trudeau Intl
9h 20m
2 stops
STL9:45 p.m.Lambert-St Louis
30 Dec
STL5:00 a.m.Lambert-St Louis
4h 32m
1 stop
YUL10:32 a.m.Montreal Pierre Elliott Trudeau Intl
United Airlines
24 Dec
YUL8:25 a.m.Montreal Pierre Elliott Trudeau Intl
14h 20m
2 stops
STL9:45 p.m.Lambert-St Louis
2 Jan
STL10:35 a.m.Lambert-St Louis
7h 12m
1 stop
YUL6:47 p.m.Montreal Pierre Elliott Trudeau Intl

American Airlines flights from Montreal to St. Louis

Our best American Airlines deals on Montreal to St. Louis flight tickets
American Airlines
25 Dec
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
5h 41m
1 stop
STL12:11 p.m.Lambert-St Louis
31 Dec
STL6:30 a.m.Lambert-St Louis
4h 50m
1 stop
YUL12:20 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
24 Dec
YUL7:13 a.m.Montreal Pierre Elliott Trudeau Intl
12h 47m
1 stop
STL7:00 p.m.Lambert-St Louis
2 Jan
STL5:03 a.m.Lambert-St Louis
7h 32m
1 stop
YUL1:35 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
25 Dec
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
5h 41m
1 stop
STL12:11 p.m.Lambert-St Louis
31 Dec
STL5:45 a.m.Lambert-St Louis
16h 05m
2 stops
YUL10:50 p.m.Montreal Pierre Elliott Trudeau Intl

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

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 14% more expensive in the afternoon than in the morning

What is the cheapest airline that flies to St. Louis from Montreal?

Delta. Delta, Air Canada, and United Airlines are the most popular carriers operating from Montreal to St. Louis

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

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$ 480

Fastest flight time

5h 41m

Direct flights

None

Airports in St. Louis

1 airport
The best flight deal from Montreal to St. Louis found on momondo in the last 72 hours is C$ 480
The fastest flight from Montreal to St. Louis takes 5h 41m
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 41m, 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$ 289Free CancellationRating
7.4
9,226 reviews
Search United Airlines flights
DeltaPriceFrom C$ 439Free CancellationRating
8.0
8,829 reviews
Search Delta flights
Air CanadaPriceFrom C$ 467Free CancellationRating
7.0
8,123 reviews
Search Air Canada flights
WestJetPriceFrom C$ 659Free CancellationRating
7.3
2,803 reviews
Search WestJet flights
WestJet EncorePriceFrom C$ 881Free CancellationRating
8.6
10 reviews
Search WestJet Encore 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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