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$129+ Cheap flights from Missouri to Montreal (YMQ)

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YMQ
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from Missouri to Montreal

Cheapest flights from Missouri to Montreal
Explore the most affordable flight options available from Missouri to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/6. 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 4/204:59 pm
STL
-
YUL
1 stop30h 31m
Multiple Airlines
Mon 4/278:00 am
YUL
-
STL
2 stops47h 50m
Multiple Airlines
Deal found 3/6$366
This American Airlines deal was found by Cheapflights users on 3/7. 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 5/118:03 pm
STL
-
YUL
1 stop14h 41m
American Airlines
Sat 5/1612:30 pm
YUL
-
STL
1 stop10h 49m
American Airlines
Deal found 3/7$387
This American Airlines deal was found by Cheapflights users on 3/6. 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 4/205:21 pm
STL
-
YUL
1 stop17h 23m
American Airlines
Mon 4/2712:30 pm
YUL
-
STL
1 stop12h 16m
American Airlines
Deal found 3/6$401
This American Airlines deal was found by Cheapflights users on 3/7. 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 4/214:30 pm
STL
-
YUL
1 stop18h 14m
American Airlines
Tue 4/281:03 pm
YUL
-
STL
2 stops11h 43m
American Airlines
Deal found 3/7$411
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
Tue 3/3112:24 pm
MCI
-
YUL
2 stops11h 06m
Multiple Airlines
Mon 4/138:00 am
YUL
-
MCI
1 stop28h 29m
Multiple Airlines
Deal found 3/6$414
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 4/2210:16 am
COU
-
YUL
1 stop24h 28m
American Airlines
Sun 4/2612:30 pm
YUL
-
COU
1 stop22h 16m
American Airlines
Deal found 3/9$429
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 4/224:28 pm
COU
-
YUL
1 stop18h 16m
American Airlines
Sat 4/257:45 am
YUL
-
COU
2 stops14h 45m
American Airlines
Deal found 3/9$439
This flygcity.se deal was found by Cheapflights users on 3/8. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:45 am
STL
-
YUL
1 stop8h 45m
Air Canada
Mon 5/46:30 pm
YUL
-
STL
Nonstop2h 55m
Air Canada
Deal found 3/8$465
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/308:21 am
STL
-
YUL
1 stop8h 09m
United Airlines
Tue 3/319:45 am
YUL
-
STL
1 stop12h 23m
United Airlines
Deal found 3/5$467
This Mytrip deal was found by Cheapflights users on 3/6. 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.
Tue 3/315:45 am
MCI
-
YUL
1 stop17h 45m
Multiple Airlines
Fri 4/104:35 pm
YUL
-
MCI
1 stop8h 18m
Multiple Airlines
Deal found 3/6$478
This American Airlines deal was found by Cheapflights users on 3/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:06 pm
MCI
-
YUL
1 stop16h 38m
American Airlines
Sat 5/912:30 pm
YUL
-
MCI
1 stop12h 46m
American Airlines
Deal found 3/8$487
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
Wed 4/812:24 pm
MCI
-
YUL
2 stops18h 36m
Multiple Airlines
Sun 4/128:00 am
YUL
-
MCI
1 stop28h 29m
Multiple Airlines
Deal found 3/6$488

Find flight deals from Missouri to Montreal

Keep the following information in mind while searching for Missouri to Montreal flight deals. Data was last updated March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$366
(Kiwi.com)

One-way from

$129
(American Airlines)

Popular in

March

Cheapest in

June

Average price

$821

Good round-trip deal

$857 or less

Good one-way deal

$383 or less
Provider with most accurate pricing for Lambert-St Louis-Montreal (YMQ) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Montreal (YMQ) flights.
Search Deals
From Missouri to Montreal (YMQ)
Search Deals
One-way flight from Missouri to Montreal (YMQ)
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Missouri to Montreal (YMQ).
Search Deals
Price to beat on a one-way flight from Missouri to Montreal (YMQ).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Montreal 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 March 11, 2026.
Use the filters below to find and compare flights from Missouri to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColumbiaMontreal

COU - YUL

COUYUL

Columbia Regional

Wed 4/22

10:16 am-11:44 am

1 stop24h 28m

Montreal Pierre Elliott Trudeau Intl

Sat 4/25

12:30 pm-9:30 pm

1 stop10h 00m

$429

ColumbiaMontreal

COU - YUL

COUYUL

Columbia Regional

Wed 4/22

10:16 am-11:44 am

1 stop24h 28m

Montreal Pierre Elliott Trudeau Intl

Sun 4/26

12:30 pm-9:46 am

1 stop22h 16m

$429

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 3/30

6:30 am-5:58 pm

2 stops10h 28m

Montreal Pierre Elliott Trudeau Intl

Tue 3/31

1:20 pm-9:47 pm

1 stop9h 27m

$477

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 4/30

11:21 am-12:45 am

2 stops12h 24m

Montreal Pierre Elliott Trudeau Intl

Sun 5/3

4:35 pm-11:19 pm

1 stop7h 44m

$488

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 4/21

6:30 am-6:56 pm

1 stop11h 26m

Montreal Pierre Elliott Trudeau Intl

Sat 4/25

1:20 pm-9:52 pm

1 stop9h 32m

$501

JoplinMontreal

JLN - YUL

JLNYUL

Joplin

Fri 4/17

8:56 am-10:40 am

1 stop24h 44m

Montreal Pierre Elliott Trudeau Intl

Tue 4/21

5:00 pm-1:12 pm

1 stop21h 12m

$524

JoplinMontreal

JLN - YUL

JLNYUL

Joplin

Thu 4/30

9:06 am-11:33 am

2 stops25h 27m

Montreal Pierre Elliott Trudeau Intl

Sat 5/2

6:30 pm-1:37 pm

1 stop20h 07m

$535

ColumbiaMontreal

COU - YUL

COUYUL

Columbia Regional

Tue 4/28

3:23 pm-4:05 pm

1 stop23h 42m

Montreal Pierre Elliott Trudeau Intl

Sat 5/2

8:40 am-10:03 pm

1 stop14h 23m

$542

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 5/13

7:45 am-9:26 pm

1 stop12h 41m

Montreal Pierre Elliott Trudeau Intl

Sun 5/17

6:10 am-9:13 pm

1 stop16h 03m

$561

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 4/2

6:00 am-2:58 pm

1 stop7h 58m

Montreal Pierre Elliott Trudeau Intl

Sun 4/5

12:59 pm-11:44 pm

2 stops11h 45m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 47 resultsSorted by cheapest first
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Best time to book a flight from Missouri to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal 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

What is the cheapest month to book a flight from Missouri to Montreal?

Currently, June is the cheapest month in which you can book a flight from Missouri to Montreal (average of $220). Flying from Missouri to Montreal in January is currently the most expensive (average of $642). 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.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Montreal. 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?

    A quick flight from Missouri to Montreal can take about 10h 28m. American Airlines provides one of the quickest options available for as low as $477. There are 967 mi between Missouri and Montreal. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Missouri to Montreal?

    Most travelers choose Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl, Kansas City - Montreal Pierre Elliott Trudeau Intl or Columbia Regional - Montreal Pierre Elliott Trudeau Intl when deciding on the best route from Missouri to Montreal.

  • What are the cheapest flights from Missouri to Montreal?

    On average you can expect to pay $771 for a flight from Missouri to Montreal. The cheapest flight overall is $230 while the most popular route, (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) is currently priced at $418.

  • Can I find deals for flights from Missouri to Montreal that include hotel bookings?

    Yes. In addition to deals on Missouri to Montreal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Montreal?

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

  • Can I find deals for business class flights from Missouri to Montreal?

    Yes. Cheapflights offers flight deals from Missouri to Montreal 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?

    Currently, June is the cheapest month in which you can book a flight from Missouri to Montreal (average of $220). Flying from Missouri to Montreal in January is currently the most expensive (average of $642). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Missouri to Montreal

Discover the top 5 airlines that operate flights from Missouri to Montreal. 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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$212Average$609FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$239Average$765FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$318Average$661FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$348Average$548FlexibilityNo cancel feeOn-time71%
WestJetCheapest$505Average$708FlexibilityNo cancel feeOn-time60%

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