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$178+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Missouri

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — STL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Pierre Elliott Trudeau Intl to Missouri

Keep the following information in mind while searching for Pierre Elliott Trudeau Intl to Missouri flight deals. Data was last updated July 30, 2025.

Round-trip from

$326
(American Airlines)

One-way from

$178
(Kiwi.com)

Popular in

November

Cheapest in

October

Average price

$572

Good one-way deal

$279 or less
From Montreal Pierre Elliott Trudeau Intl to Missouri
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One-way flight from Montreal Pierre Elliott Trudeau Intl to Missouri
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Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to Missouri.
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Find flight deals from Pierre Elliott Trudeau Intl to Missouri

Cheapest flights from Pierre Elliott Trudeau Intl to Missouri
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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 9/1312:31 pmYUL - STL
1 stop10h 22mAmerican Airlines
Sat 9/202:01 pmSTL - YUL
1 stop20h 45mAmerican Airlines
Deal found 7/30$326
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/306:45 amYUL - MCI
1 stop17h 08mMultiple Airlines
Mon 9/111:44 amMCI - YUL
2 stops32h 33mMultiple Airlines
Deal found 7/29$356
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 8/2612:30 pmYUL - MCI
1 stop9h 18mAmerican Airlines
Wed 8/275:39 amMCI - YUL
1 stop10h 03mAmerican Airlines
Deal found 7/27$407
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:00 amYUL - STL
1 stop27h 06mDelta
Tue 9/166:40 amSTL - YUL
1 stop4h 20mDelta
Deal found 7/29$408
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:10 pmYUL - STL
Nonstop2h 47mAir Canada
Tue 9/169:15 amSTL - YUL
1 stop6h 05mAir Canada
Deal found 7/29$427
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:00 pmYUL - STL
2 stops20h 44mUnited Airlines
Tue 9/165:30 pmSTL - YUL
1 stop17h 27mUnited Airlines
Deal found 7/29$445
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:00 amYUL - STL
3 stops10h 35mMultiple Airlines
Fri 9/191:00 pmSTL - YUL
3 stops25h 20mMultiple Airlines
Deal found 7/29$481
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:15 amYUL - MCI
1 stop10h 41mUnited Airlines
Wed 9/37:30 amMCI - YUL
1 stop12h 59mUnited Airlines
Deal found 7/30$529
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/262:20 pmYUL - MCI
2 stops8h 22mAir Canada
Wed 8/277:30 amMCI - YUL
2 stops7h 51mAir Canada
Deal found 7/27$642
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:59 pmYUL - MCI
1 stop15h 34mWestJet
Wed 8/65:45 amMCI - YUL
1 stop17h 10mWestJet
Deal found 7/28$741
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:00 amYUL - MCI
1 stop4h 43mDelta
Wed 7/305:24 pmMCI - YUL
1 stop5h 31mDelta
Deal found 7/27$798

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Missouri 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 July 30, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Missouri that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Missouri

Route

Depart

Return

Price

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 9/13

12:31 pm-9:53 pm

1 stop10h 22m

Lambert-St Louis

Sat 9/20

2:01 pm-11:46 am

1 stop20h 45m

$326

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Sat 8/30

6:45 am-10:53 pm

1 stop17h 08m

Kansas City

Mon 9/1

11:44 am-9:17 pm

2 stops32h 33m

$356

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Tue 8/26

12:30 pm-8:48 pm

1 stop9h 18m

Kansas City

Wed 8/27

5:39 am-4:42 pm

1 stop10h 03m

$407

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 9/8

6:00 am-8:06 am

1 stop27h 06m

Lambert-St Louis

Tue 9/16

6:40 am-12:00 pm

1 stop4h 20m

$408

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 9/8

6:10 pm-7:57 pm

Nonstop2h 47m

Lambert-St Louis

Tue 9/16

9:15 am-4:20 pm

1 stop6h 05m

$427

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 9/8

8:00 pm-3:44 pm

2 stops20h 44m

Lambert-St Louis

Tue 9/16

5:30 pm-11:57 am

1 stop17h 27m

$445

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 9/12

7:00 am-4:35 pm

3 stops10h 35m

Lambert-St Louis

Fri 9/19

1:00 pm-3:20 pm

3 stops25h 20m

$481

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Wed 8/27

6:15 am-3:56 pm

1 stop10h 41m

Kansas City

Wed 9/3

7:30 am-9:29 pm

1 stop12h 59m

$529

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Tue 8/26

2:20 pm-9:42 pm

2 stops8h 22m

Kansas City

Wed 8/27

7:30 am-4:21 pm

2 stops7h 51m

$642

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Fri 12/19

6:45 am-10:21 pm

2 stops16h 36m

Kansas City

Sat 12/27

3:47 pm-11:37 pm

1 stop6h 50m

$766

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 22 results
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Best time to book a flight from Pierre Elliott Trudeau Intl to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Missouri

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

Currently, August is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Missouri (average of $311). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Missouri in March is currently the most expensive (average of $356). 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 YUL to MO?

Find hourly flight availability from Pierre Elliott Trudeau Intl to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal Pierre Elliott Trudeau Intl Airport to Missouri as you normally would.

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

Explore weekly flight availability from Pierre Elliott Trudeau Intl to Missouri. 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 July 30, 2025.

The most flights from YUL to USMO 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).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated July 30, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Missouri have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
WestJet
7.2
Good
2,975 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air Canada
7.1
Good
9,837 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to Missouri one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $193. However, be on the lookout for offers from Iberia and Delta, as they are both options that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Missouri for a low price.

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

    The top 3 most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to Missouri are Jazz (67%), Air Canada (63%) and United Airlines (62%).

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

    Looking at all options, your cheapest flight can be booked for $241. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis) can be booked for $384 on average our data indicates $332 when flying from Montreal Pierre Elliott Trudeau Intl Airport to Missouri.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Missouri 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 Montreal Pierre Elliott Trudeau Intl Airport to Missouri?

    Currently, August is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Missouri (average of $311). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Missouri in March is currently the most expensive (average of $356). 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.

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Alternative routes for Pierre Elliott Trudeau Intl to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Pierre Elliott Trudeau Intl to Missouri

Discover the top 2 airlines that operate flights from Pierre Elliott Trudeau Intl to Missouri. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$433Average$542FlexibilityNo cancel feeOn-time67%
DeltaCheapest$452Average$511FlexibilityNo cancel feeOn-timeN/A

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