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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis from $257

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 pm - 11:59 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 55m2 stops Philadelphia Chicago O'Hare Intl
American Airlines Logo
8:15 pm - 11:25 amSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
$422American Airlines
Sat, Nov 7 - Mon, Nov 9
American Airlines Logo
5:34 pm - 10:51 amYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
18h 17m1 stop Chicago O'Hare Intl
American Airlines Logo
8:15 pm - 11:25 amSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
$434American Airlines
Fri, Oct 30 - Mon, Nov 2
American Airlines Logo
10:32 am - 8:52 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 20m1 stop New York LaGuardia
American Airlines Logo
5:00 am - 4:52 pmSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
10h 52m1 stop Chicago O'Hare Intl
$466American Airlines
Tue, Oct 20 - Sat, Oct 24
American Airlines Logo
10:32 am - 8:52 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 20m1 stop New York LaGuardia
American Airlines Logo
5:23 pm - 11:44 amSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
17h 21m1 stop Chicago O'Hare Intl
$466American Airlines
Tue, Oct 13 - Sat, Oct 17
American Airlines Logo
12:10 pm - 11:59 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 49m1 stop Chicago O'Hare Intl
American Airlines Logo
8:15 pm - 11:25 amSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
$470American Airlines
Sat, Nov 7 - Mon, Nov 9
American Airlines Logo
10:32 am - 8:52 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 20m1 stop New York LaGuardia
American Airlines Logo
5:29 pm - 11:25 amSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
16h 56m1 stop Chicago O'Hare Intl
$512American Airlines
Fri, Oct 23 - Tue, Nov 3
United Airlines Logo
6:30 pm - 12:13 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
18h 43m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 am - 7:45 pmSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
12h 45m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
$518United Airlines
Tue, Oct 13 - Sat, Oct 17
United Airlines Logo
9:45 am - 9:21 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 36m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 am - 8:12 pmSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
13h 12m2 stops Chicago O'Hare Intl Newark
$518United Airlines
Tue, Oct 20 - Sat, Oct 24
Air Canada Logo
10:10 am - 3:26 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
6h 16m1 stop Toronto Pearson Intl
Air Canada Logo
4:05 pm - 11:25 pmSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
6h 20m1 stop Toronto Pearson Intl
$629Air Canada
Fri, Nov 6 - Fri, Nov 13
Air Canada Logo
8:35 am - 2:00 pmYUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
6h 25m2 stops Ottawa Toronto Pearson Intl
Air Canada Logo
8:55 am - 4:21 pmSTL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
6h 26m1 stop Toronto Pearson Intl
$635Air Canada
Thu, Oct 15 - Sun, Oct 18

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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
Oct 15
YUL8:35 amMontreal Pierre Elliott Trudeau Intl
6h 25m
2 stops
STL2:00 pmLambert-St Louis
Oct 18
STL8:55 amLambert-St Louis
6h 26m
1 stop
YUL4:21 pmMontreal Pierre Elliott Trudeau Intl
$635
Air Canada
Oct 15
YUL4:55 pmMontreal Pierre Elliott Trudeau Intl
2h 46m
STL6:41 pmLambert-St Louis
Oct 18
STL12:10 pmLambert-St Louis
2h 31m
YUL3:41 pmMontreal Pierre Elliott Trudeau Intl
$637
Air Canada
Oct 15
YUL4:55 pmMontreal Pierre Elliott Trudeau Intl
2h 46m
STL6:41 pmLambert-St Louis
Oct 18
STL12:10 pmLambert-St Louis
2h 31m
YUL3:41 pmMontreal Pierre Elliott Trudeau Intl
$639

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
Nov 11
YUL9:40 amMontreal Pierre Elliott Trudeau Intl
15h 16m
2 stops
STL11:56 pmLambert-St Louis
Nov 15
STL7:00 amLambert-St Louis
5h 40m
1 stop
YUL1:40 pmMontreal Pierre Elliott Trudeau Intl
$598
Delta
Oct 30
YUL7:50 pmMontreal Pierre Elliott Trudeau Intl
16h 57m
1 stop
STL11:47 amLambert-St Louis
Nov 1
STL2:25 pmLambert-St Louis
8h 29m
1 stop
YUL11:54 pmMontreal Pierre Elliott Trudeau Intl
$609
Delta
Oct 19
YUL7:50 pmMontreal Pierre Elliott Trudeau Intl
13h 39m
1 stop
STL8:29 amLambert-St Louis
Oct 23
STL5:35 pmLambert-St Louis
5h 19m
1 stop
YUL11:54 pmMontreal Pierre Elliott Trudeau Intl
$629

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.

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Price

Cheapest round-trip

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 11/7

1:04 pm-11:59 pm

2 stops11h 55m

Lambert-St Louis

Mon 11/9

8:15 pm-11:25 am

1 stop14h 10m

$422

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 10/30

5:34 pm-10:51 am

1 stop18h 17m

Lambert-St Louis

Mon 11/2

8:15 pm-11:25 am

1 stop14h 10m

$434

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 10/20

10:32 am-8:52 pm

1 stop11h 20m

Lambert-St Louis

Sat 10/24

5:00 am-4:52 pm

1 stop10h 52m

$466

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 10/13

10:32 am-8:52 pm

1 stop11h 20m

Lambert-St Louis

Sat 10/17

5:23 pm-11:44 am

1 stop17h 21m

$466

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 11/7

12:10 pm-11:59 pm

1 stop12h 49m

Lambert-St Louis

Mon 11/9

8:15 pm-11:25 am

1 stop14h 10m

$470

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 10/23

10:32 am-8:52 pm

1 stop11h 20m

Lambert-St Louis

Tue 11/3

5:29 pm-11:25 am

1 stop16h 56m

$512

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 10/13

6:30 pm-12:13 pm

1 stop18h 43m

Lambert-St Louis

Sat 10/17

6:00 am-7:45 pm

2 stops12h 45m

$518

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 10/20

9:45 am-9:21 pm

1 stop12h 36m

Lambert-St Louis

Sat 10/24

6:00 am-8:12 pm

2 stops13h 12m

$518
Quickest round-trip

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 11/6

10:10 am-3:26 pm

1 stop6h 16m

Lambert-St Louis

Fri 11/13

4:05 pm-11:25 pm

1 stop6h 20m

$629

MontrealSt. Louis

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

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

8:35 am-2:00 pm

2 stops6h 25m

Lambert-St Louis

Sun 10/18

8:55 am-4:21 pm

1 stop6h 26m

$635

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $547 to $762.
The lowest price recently found on this route was $422.

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

In general, August is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $442. The month of November is another great option to travel to St. Louis, with average flight prices from Montreal Pierre Elliott Trudeau Intl Airport averaging around $542.

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

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $538. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $690. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

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 8% 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

$257

Fastest flight time

2h 46m

Direct flights

Mon, Tue, Wed, Fri, Sat 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 $257. 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 $422.
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 Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Air Canada.
There is 1 airport in St. Louis. From Montreal Pierre Elliott Trudeau Intl Airport there are direct flights to Lambert-St Louis (STL).
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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 963.7 mi. Flights usually cover this in 2h 46m, depending on flying conditions and air traffic around both airports.

  • 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 refreshed on a daily basis.

  • 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 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 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 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 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 $478Free CancellationRating
7.1
11,696 reviews
Search Air Canada flights

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

    Air Canada flight deals from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis start from $478 round-trip. Over the 7 Air Canada flights for this route in a normal week, average airfare is usually $567 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Maryland Heights
St. Peters
Alton
Collinsville
Florissant
Hermann
Clayton
O'Fallon
Farmington
Festus
Fenton
Edwardsville
Wentzville
Eureka
Litchfield
Grafton
Waterloo

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Montreal.

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?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Montreal to St. Louis.

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

Yes momondo offers price alerts on flights to St. Louis from Montreal. 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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