Pierre Elliott Trudeau Intl

$139+ Cheap flights from Missouri to Pierre Elliott Trudeau Intl (YUL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YUL
Oct 11 — Oct 181
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Cheap flight deals from Missouri to Pierre Elliott Trudeau Intl

Keep the following information in mind while searching for Missouri to Pierre Elliott Trudeau Intl flight deals. Data was last updated September 11, 2025.

Round-trip from

$377
(American Airlines)

One-way from

$139
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$527

Good round-trip deal

$674 or less

Good one-way deal

$408 or less
From Missouri to Montreal Pierre Elliott Trudeau Intl
One-way flight from Missouri to Montreal Pierre Elliott Trudeau Intl
Highest demand for flights based on searches. 8% potential increase in price ($44 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Missouri to Montreal Pierre Elliott Trudeau Intl.
Price to beat on a one-way flight from Missouri to Montreal Pierre Elliott Trudeau Intl.

Find flight deals from Missouri to Pierre Elliott Trudeau Intl

Cheapest flights from Missouri to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Missouri to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:34 pmSTL - YUL
1 stop18h 06mAmerican Airlines
Sat 11/112:30 pmYUL - STL
1 stop10h 38mAmerican Airlines
Deal found 9/10$377
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/151:44 pmMCI - YUL
1 stop9h 46mMultiple Airlines
Wed 11/196:45 amYUL - MCI
2 stops18h 55mMultiple Airlines
Deal found 9/8$382
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:07 pmSTL - YUL
2 stops26h 36mMultiple Airlines
Sun 11/164:35 pmYUL - STL
1 stop18h 05mMultiple Airlines
Deal found 9/9$401
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:43 pmMCI - YUL
1 stop18h 28mAmerican Airlines
Wed 11/57:30 amYUL - MCI
2 stops14h 53mAmerican Airlines
Deal found 9/9$403
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/59:45 amSTL - YUL
2 stops11h 25mMultiple Airlines
Mon 12/84:35 pmYUL - STL
1 stop31h 11mMultiple Airlines
Deal found 9/10$409
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:25 pmSTL - YUL
1 stop17h 21mAmerican Airlines
Tue 10/712:30 pmYUL - STL
1 stop8h 56mAmerican Airlines
Deal found 9/10$411
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:41 amSTL - YUL
2 stops13h 01mAmerican Airlines
Tue 12/97:30 amYUL - STL
2 stops13h 54mAmerican Airlines
Deal found 9/10$426
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/178:05 pmSTL - YUL
1 stop14h 35mAmerican Airlines
Mon 10/205:24 pmYUL - STL
1 stop15h 45mAmerican Airlines
Deal found 9/10$428
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:32 pmSTL - YUL
1 stop15h 48mMultiple Airlines
Sat 10/117:20 pmYUL - STL
2 stops16h 17mMultiple Airlines
Deal found 9/8$429
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2610:57 amSTL - YUL
2 stops28h 58mMultiple Airlines
Sun 11/24:35 pmYUL - STL
1 stop18h 05mMultiple Airlines
Deal found 9/11$436
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 amSTL - YUL
1 stop9h 39mAmerican Airlines
Wed 10/297:50 amYUL - STL
2 stops11h 30mAmerican Airlines
Deal found 9/10$437
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/265:15 amMCI - YUL
1 stop18h 15mMultiple Airlines
Sun 11/24:35 pmYUL - MCI
2 stops24h 41mMultiple Airlines
Deal found 9/11$466

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Pierre Elliott Trudeau Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Missouri to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Missouri

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 10/25

4:34 pm-11:40 am

1 stop18h 06m

Montreal Pierre Elliott Trudeau Intl

Sat 11/1

12:30 pm-10:08 pm

1 stop10h 38m

$377

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sat 11/15

1:44 pm-12:30 am

1 stop9h 46m

Montreal Pierre Elliott Trudeau Intl

Wed 11/19

6:45 am-12:40 am

2 stops18h 55m

$382

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sun 11/2

7:43 pm-3:11 pm

1 stop18h 28m

Montreal Pierre Elliott Trudeau Intl

Wed 11/5

7:30 am-9:23 pm

2 stops14h 53m

$403

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 12/5

9:45 am-10:10 pm

2 stops11h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 12/8

4:35 pm-10:46 pm

1 stop31h 11m

$409

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 10/17

8:05 pm-11:40 am

1 stop14h 35m

Montreal Pierre Elliott Trudeau Intl

Mon 10/20

5:24 pm-8:09 am

1 stop15h 45m

$428

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 10/3

9:32 pm-2:20 pm

1 stop15h 48m

Montreal Pierre Elliott Trudeau Intl

Sat 10/11

7:20 pm-10:37 am

2 stops16h 17m

$429

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 11/6

7:58 pm-3:11 pm

1 stop18h 13m

Montreal Pierre Elliott Trudeau Intl

Sun 11/9

3:52 pm-8:09 am

1 stop17h 17m

$444

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sun 10/26

5:15 am-12:30 am

1 stop18h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 11/2

4:35 pm-4:16 pm

2 stops24h 41m

$466

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 10/4

7:10 am-7:25 pm

2 stops11h 15m

Montreal Pierre Elliott Trudeau Intl

Tue 10/7

9:28 am-8:23 pm

2 stops11h 55m

$469

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 11/10

2:12 pm-12:30 am

1 stop9h 18m

Montreal Pierre Elliott Trudeau Intl

Sun 11/16

4:35 pm-9:40 am

1 stop18h 05m

$475

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 45 results
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Best time to book a flight from Missouri to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Montreal Pierre Elliott Trudeau Intl Airport

What is the cheapest month to book a flight from Missouri to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Missouri to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Missouri to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to YUL?

Find hourly flight availability from Missouri to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Missouri to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Missouri to Montreal Pierre Elliott Trudeau Intl Airport

Explore weekly flight availability from Missouri to Pierre Elliott Trudeau Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from USMO to YUL are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Related info for your journey

Find useful and relevant information for your journey from Missouri to Pierre Elliott Trudeau Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Missouri to Montreal Pierre Elliott Trudeau Intl Airport?

    Departing from Missouri to Montreal Pierre Elliott Trudeau Intl Airport will take you 18h 06m. Missouri and Montreal Pierre Elliott Trudeau Intl Airport are separated by a distance of 967 mi.

  • What are the most popular routes from Missouri to Montreal Pierre Elliott Trudeau Intl Airport?

  • What are the most reliable airlines from Missouri to Montreal Pierre Elliott Trudeau Intl Airport?

    Before booking your flight to Montreal Pierre Elliott Trudeau Intl Airport from Missouri, check out the most reliable airlines to get you to your destination on time: Air Canada (74%), Jazz (74%), United Airlines( 74%).

  • What are the cheapest flights from Missouri to Montreal Pierre Elliott Trudeau Intl Airport?

    On average you can expect to pay $2,138 for a flight from Missouri to Montreal Pierre Elliott Trudeau Intl Airport. The cheapest flight overall is $297 while the most popular route, (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) is currently priced at $401.

  • Can I find deals for flights from Missouri to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on Missouri to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Pierre Elliott Trudeau Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Pierre Elliott Trudeau Intl.

  • Can I find deals for business class flights from Missouri to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from Missouri to Pierre Elliott Trudeau Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Missouri to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Missouri to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Laval
Longueuil
Brossard
Sherbrooke
Dorval

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Alternative routes for Missouri to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Missouri to Pierre Elliott Trudeau Intl

Discover the top 5 airlines that operate flights from Missouri to Pierre Elliott Trudeau Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$141Average$600FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$187Average$547FlexibilityNo cancel feeOn-time67%
DeltaCheapest$255Average$521FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$348Average$499FlexibilityNo cancel feeOn-time71%
WestJetCheapest$416Average$599FlexibilityNo cancel feeOn-time60%

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