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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis from C$ 319

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:04 p.m. - 11:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 55m2 stops Philadelphia Chicago O'Hare Intl
American Airlines Logo
8:15 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
C$ 593American Airlines
Sat, 7 Nov - Mon, 9 Nov
American Airlines Logo
12:10 p.m. - 8:04 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
8h 54m1 stop Chicago O'Hare Intl
American Airlines Logo
7:26 a.m. - 9:26 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
13h 00m2 stops Chicago O'Hare Intl Philadelphia
C$ 648American Airlines
Thu, 19 Nov - Sat, 21 Nov
American Airlines Logo
10:32 a.m. - 8:52 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 20m1 stop New York LaGuardia
American Airlines Logo
5:23 p.m. - 11:44 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
17h 21m1 stop Chicago O'Hare Intl
C$ 655American Airlines
Tue, 13 Oct - Sat, 17 Oct
American Airlines Logo
10:32 a.m. - 8:52 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 20m1 stop New York LaGuardia
American Airlines Logo
5:00 a.m. - 4:52 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
10h 52m1 stop Chicago O'Hare Intl
C$ 655American Airlines
Tue, 20 Oct - Sat, 24 Oct
American Airlines Logo
12:10 p.m. - 11:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 49m1 stop Chicago O'Hare Intl
American Airlines Logo
8:15 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
C$ 660American Airlines
Sat, 7 Nov - Mon, 9 Nov
American Airlines Logo
12:10 p.m. - 11:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 49m1 stop Chicago O'Hare Intl
American Airlines Logo
8:15 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
C$ 673American Airlines
Mon, 2 Nov - Mon, 9 Nov
American Airlines Logo
10:32 a.m. - 8:52 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 20m1 stop New York LaGuardia
American Airlines Logo
5:29 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
16h 56m1 stop Chicago O'Hare Intl
C$ 700American Airlines
Fri, 23 Oct - Tue, 3 Nov
American Airlines Logo
10:32 a.m. - 8:52 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 20m1 stop New York LaGuardia
American Airlines Logo
7:26 a.m. - 9:26 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
13h 00m2 stops Chicago O'Hare Intl Philadelphia
C$ 712American Airlines
Fri, 23 Oct - Tue, 3 Nov
Air Canada Logo
4:55 p.m. - 6:41 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
2h 46mdirect
Air Canada Logo
12:10 p.m. - 3:41 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
2h 31mdirect
C$ 870Air Canada
Thu, 15 Oct - Sun, 18 Oct
Air Canada Logo
8:35 a.m. - 2:00 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
6h 25m2 stops Ottawa Toronto Pearson Intl
Air Canada Logo
12:10 p.m. - 3:41 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
2h 31mdirect
C$ 874Air Canada
Thu, 15 Oct - Sun, 18 Oct

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

Our best Delta deals on Montreal Pierre Elliott Trudeau Intl Airport to St. Louis flight tickets
Delta
19 Oct
YUL7:50 p.m.Montreal Pierre Elliott Trudeau Intl
16h 57m
1 stop
STL11:47 a.m.Lambert-St Louis
23 Oct
STL5:31 p.m.Lambert-St Louis
14h 01m
1 stop
YUL8:32 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 771
Delta
19 Oct
YUL5:10 p.m.Montreal Pierre Elliott Trudeau Intl
4h 41m
1 stop
STL8:51 p.m.Lambert-St Louis
26 Oct
STL5:31 p.m.Lambert-St Louis
14h 01m
1 stop
YUL8:32 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 820
Delta
19 Oct
YUL5:10 p.m.Montreal Pierre Elliott Trudeau Intl
4h 41m
1 stop
STL8:51 p.m.Lambert-St Louis
23 Oct
STL1:02 p.m.Lambert-St Louis
18h 30m
1 stop
YUL8:32 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 857

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

Our best Air Canada deals on Montreal Pierre Elliott Trudeau Intl Airport to St. Louis flight tickets
Air Canada
15 Oct
YUL4:55 p.m.Montreal Pierre Elliott Trudeau Intl
2h 46m
STL6:41 p.m.Lambert-St Louis
18 Oct
STL12:10 p.m.Lambert-St Louis
2h 31m
YUL3:41 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 870
Air Canada
15 Oct
YUL8:35 a.m.Montreal Pierre Elliott Trudeau Intl
6h 25m
2 stops
STL2:00 p.m.Lambert-St Louis
18 Oct
STL12:10 p.m.Lambert-St Louis
2h 31m
YUL3:41 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 874
Air Canada
15 Oct
YUL9:10 a.m.Montreal Pierre Elliott Trudeau Intl
5h 50m
1 stop
STL2:00 p.m.Lambert-St Louis
18 Oct
STL12:10 p.m.Lambert-St Louis
2h 31m
YUL3:41 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 875

momondo Fare Finder

 
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 7/11

1:04 p.m.-11:59 p.m.

2 stops11h 55m

Lambert-St Louis

Mon 9/11

8:15 p.m.-11:25 a.m.

1 stop14h 10m

C$ 593

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 19/11

12:10 p.m.-8:04 p.m.

1 stop8h 54m

Lambert-St Louis

Sat 21/11

7:26 a.m.-9:26 p.m.

2 stops13h 00m

C$ 648

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

10:32 a.m.-8:52 p.m.

1 stop11h 20m

Lambert-St Louis

Sat 17/10

5:23 p.m.-11:44 a.m.

1 stop17h 21m

C$ 655

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 20/10

10:32 a.m.-8:52 p.m.

1 stop11h 20m

Lambert-St Louis

Sat 24/10

5:00 a.m.-4:52 p.m.

1 stop10h 52m

C$ 655

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 7/11

12:10 p.m.-11:59 p.m.

1 stop12h 49m

Lambert-St Louis

Mon 9/11

8:15 p.m.-11:25 a.m.

1 stop14h 10m

C$ 660

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 2/11

12:10 p.m.-11:59 p.m.

1 stop12h 49m

Lambert-St Louis

Mon 9/11

8:15 p.m.-11:25 a.m.

1 stop14h 10m

C$ 673

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

10:32 a.m.-8:52 p.m.

1 stop11h 20m

Lambert-St Louis

Tue 3/11

5:29 p.m.-11:25 a.m.

1 stop16h 56m

C$ 700

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

10:32 a.m.-8:52 p.m.

1 stop11h 20m

Lambert-St Louis

Tue 3/11

7:26 a.m.-9:26 p.m.

2 stops13h 00m

C$ 712
Quickest round-trip

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 15/10

4:55 p.m.-6:41 p.m.

Nonstop2h 46m

Lambert-St Louis

Sun 18/10

12:10 p.m.-3:41 p.m.

Nonstop2h 31m

C$ 870

MontrealSt. Louis

YUL Montreal Pierre Elliott Trudeau Intl - STL Lambert-St Louis

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 15/10

8:35 a.m.-2:00 p.m.

2 stops6h 25m

Lambert-St Louis

Sun 18/10

12:10 p.m.-3:41 p.m.

Nonstop2h 31m

C$ 874

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to St. Louis from

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

Prices are currently low for flights on this route.

Typical prices usually range from C$ 775 to C$ 1,179.
The lowest price recently found on this route was C$ 593.

What is the cheapest month to fly to St. Louis?

The month of August is, on average, the cheapest month to fly to St. Louis from Montreal Pierre Elliott Trudeau Intl Airport, with most prices found around C$ 621. If you don’t want to visit St. Louis in August, then you should wait until November to fly from Montreal Pierre Elliott Trudeau Intl Airport, when ticket prices are also cheap, with an average price of C$ 761.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Friday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 780. The most expensive day to fly to St. Louis is Tuesday, with ticket prices averaging around C$ 1,683.

What is the cheapest time of day to depart on your flight to St. Louis?

The cheapest time of day to fly to St. Louis is in the afternoon when flights can be purchased for as low as C$ 794. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 1,683 on average. Flights to St. Louis from Montreal Pierre Elliott Trudeau Intl Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

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

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

There is only 1 cabin class available to choose from on Montreal Pierre Elliott Trudeau Intl Airport to St. Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to St. Louis flights?

You could potentially save up to 35% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to St. Louis flight.

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis

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

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

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

Best price found

C$ 319

Fastest flight time

2h 46m

Direct flights

Tue, Wed, Fri and Sun

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Montreal Pierre Elliott Trudeau Intl Airport in the past 72 hours is C$ 319. The best round-trip flight deal from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis found on momondo in the last 72 hours is C$ 593.
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis takes 2h 46m
Direct flights go from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis on Tuesday, Wednesday, Friday and Sunday. There are no airlines offering direct flights.
There is 1 airport in St. Louis. From Montreal Pierre Elliott Trudeau Intl Airport there are direct flights to Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis

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

    A flight from Montreal Pierre Elliott Trudeau Intl to Lambert-St Louis will travel around 1551.0 km. By plane, this route typically takes 2h 46m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montreal Pierre Elliott Trudeau Intl Airport to Lambert-St Louis Airport.

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

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

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

Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 566Free CancellationRating
7.1
11,668 reviews
Search Air Canada flights

  • Air Canada Flights From Montreal Pierre Elliott Trudeau Intl Airport to St. Louis

    The lowest priced Air Canada flight from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis from the last 72 hours was C$ 566. Generally, Air Canada has 7 flights on this route every week with an average price of C$ 825. Air Canada is rated 7.1/10 by our users.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles

Why use momondo?

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

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

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

momondo does allow users to show only those flights to St. Louis from Montreal which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Montreal.

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

Price alerts on flights to St. Louis from Montreal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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