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Cheap flights from Montreal to St. Louis from C$ 292

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to St. Louis departing on 9/4. 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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Tue 9/4

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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$ 292

Fastest flight time

2h 35m

Direct flights

Wed, Thu, Fri and Sat

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Montreal in the past 72 hours is C$ 292. The best round-trip flight deal from Montreal to St. Louis found on momondo in the last 72 hours is C$ 552.
The fastest flight from Montreal to St. Louis takes 2h 35m
Direct flights go from Montreal to St. Louis on Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is Air Canada.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

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 July.

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

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

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

In the evening. Montreal to St. Louis flights are approximately 26% more expensive in the afternoon than in the evening

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

Air Canada. Air Canada, American Airlines, and Delta 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

How far in advance should you book Montreal to St. Louis flights?

15 days before. The cheapest time to buy a flight from Montreal to St. Louis is approximately 15 days to departure

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

No. A direct flight is the cheapest option for a flight between Montreal to St. Louis.

If you are looking to fly from Montreal to St. Louis, you are most likely going to fly from Montreal Pierre Elliott Trudeau Intl Airport to Lambert-St Louis Airport, the most popular airports on that route. The cheapest route from Montreal to St. Louis is YUL — STL with an average price of C$ 552 RT during the month of March.

Montreal Pierre Elliott Trudeau Intl Airport (YUL) to Lambert-St Louis Airport (STL)C$ 552
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Easily compare round-trip flights from Montreal to St. Louis

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Montreal to St. Louis by changing tabs
Delta
23 Apr.
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
5h 51m
1 stop
STL10:51 a.m.Lambert-St Louis
24 Apr.
STL12:59 p.m.Lambert-St Louis
7h 23m
1 stop
YUL9:22 p.m.Montreal Pierre Elliott Trudeau Intl
Air Canada
1 May
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
2h 35m
STL9:05 p.m.Lambert-St Louis
7 May
STL11:00 a.m.Lambert-St Louis
2h 23m
YUL2:23 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
24 Apr.
YUL2:30 p.m.Montreal Pierre Elliott Trudeau Intl
9h 12m
1 stop
STL10:42 p.m.Lambert-St Louis
1 May
STL5:15 a.m.Lambert-St Louis
10h 19m
2 stops
YUL4:34 p.m.Montreal Pierre Elliott Trudeau Intl
United Airlines
27 Apr.
YUL6:15 a.m.Montreal Pierre Elliott Trudeau Intl
5h 02m
1 stop
STL10:17 a.m.Lambert-St Louis
5 May
STL11:00 a.m.Lambert-St Louis
2h 23m
YUL2:23 p.m.Montreal Pierre Elliott Trudeau Intl
WestJet
29 Apr.
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
5h 56m
1 stop
STL11:56 a.m.Lambert-St Louis
5 May
STL6:30 a.m.Lambert-St Louis
4h 40m
1 stop
YUL12:10 p.m.Montreal Pierre Elliott Trudeau Intl
Multiple Airlines
30 Apr.
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
7h 59m
1 stop
STL1:44 p.m.Lambert-St Louis
7 May
STL10:34 a.m.Lambert-St Louis
12h 59m
2 stops
YUL12:33 a.m.Montreal Pierre Elliott Trudeau Intl

Find the cheapest one-way flights from Montreal to St. Louis

If you're looking for one-way flights from Montreal to St. Louis, view some of our deals below provided by Air Canada and Delta
Multiple Airlines
9 Apr.
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
7h 55m
1 stop
STL1:40 p.m.Lambert-St Louis
Air Canada
30 Apr.
YUL2:10 p.m.Montreal Pierre Elliott Trudeau Intl
6h 51m
1 stop
STL8:01 p.m.Lambert-St Louis
Delta
19 Apr.
YUL5:17 p.m.Montreal Pierre Elliott Trudeau Intl
5h 06m
1 stop
STL9:23 p.m.Lambert-St Louis

Search last-minute flights to St. Louis from Montreal

Find and compare round-trip flight prices for your last-minute flight from Montreal to St. Louis
Delta
4 Apr.
YUL5:10 p.m.Montreal Pierre Elliott Trudeau Intl
5h 48m
1 stop
STL9:58 p.m.Lambert-St Louis
9 Apr.
STL6:00 a.m.Lambert-St Louis
8h 06m
1 stop
YUL3:06 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,126
Find similar

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$ 260Free CancellationRating
7.4
11,481 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 420Free CancellationRating
7.0
6,743 reviews
Search Air Canada flights
DeltaPriceFrom C$ 430Free CancellationRating
8.0
11,402 reviews
Search Delta flights
American AirlinesPriceFrom C$ 499Free CancellationRating
7.3
15,181 reviews
Search American Airlines flights
WestJetPriceFrom C$ 676Free CancellationRating
7.5
3,035 reviews
Search WestJet flights
WestJet EncorePriceFrom C$ 858Free CancellationRating
8.0
63 reviews
Search WestJet Encore flights

Air Canada flights from Montreal to St. Louis

Our best Air Canada deals on Montreal to St. Louis flight tickets
Air Canada
1 May
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
2h 35m
STL9:05 p.m.Lambert-St Louis
7 May
STL11:00 a.m.Lambert-St Louis
2h 23m
YUL2:23 p.m.Montreal Pierre Elliott Trudeau Intl
Air Canada
24 Apr.
YUL10:10 a.m.Montreal Pierre Elliott Trudeau Intl
6h 51m
1 stop
STL4:01 p.m.Lambert-St Louis
1 May
STL10:10 a.m.Lambert-St Louis
6h 08m
1 stop
YUL5:18 p.m.Montreal Pierre Elliott Trudeau Intl
Air Canada
27 Apr.
YUL6:15 a.m.Montreal Pierre Elliott Trudeau Intl
5h 02m
1 stop
STL10:17 a.m.Lambert-St Louis
9 May
STL10:10 a.m.Lambert-St Louis
5h 38m
1 stop
YUL4:48 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
24 Apr.
YUL2:30 p.m.Montreal Pierre Elliott Trudeau Intl
9h 12m
1 stop
STL10:42 p.m.Lambert-St Louis
1 May
STL5:15 a.m.Lambert-St Louis
10h 19m
2 stops
YUL4:34 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
20 Apr.
YUL2:30 p.m.Montreal Pierre Elliott Trudeau Intl
9h 12m
1 stop
STL10:42 p.m.Lambert-St Louis
22 Apr.
STL6:05 a.m.Lambert-St Louis
9h 29m
2 stops
YUL4:34 p.m.Montreal Pierre Elliott Trudeau Intl
American Airlines
24 Apr.
YUL10:35 a.m.Montreal Pierre Elliott Trudeau Intl
8h 27m
2 stops
STL6:02 p.m.Lambert-St Louis
1 May
STL7:10 a.m.Lambert-St Louis
8h 24m
2 stops
YUL4:34 p.m.Montreal Pierre Elliott Trudeau Intl

  • 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 2h 35m, 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.


Alternative routes for Montreal to St. Louis

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Montreal to Kansas City Flights
Fastest flight time5h 53m
Cheapest priceC$ 492
Montreal to Cape Girardeau Flights
Fastest flight time28h 00m
Cheapest priceC$ 978
Québec City to St. Louis Flights
Fastest flight time16h 47m
Cheapest priceC$ 736

Similar Montreal to St. Louis flights

Flexible with your destination? Broaden your search and find flights similar to your Montreal to St. Louis route

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.


An easier way to manage your St. Louis trip

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1 adult
Tue 2/4
Tue 9/4
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