$128+ Cheap flights from St. Louis (STL) 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YMQ
Mar 31 — Apr 71
1 adult, Economy
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Find cheap flights from St. Louis to Montreal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Montreal
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Best
Last-minute
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Cheapest flights from St. Louis to MontrealExplore the most affordable flight options available from St. Louis to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 1, 2026.
Explore the most affordable flight options available from St. Louis to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 1, 2026.
This American Airlines deal was found by Cheapflights users on 2/27. 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.
Thu 3/266:00 am
STL
- YUL
1 stop8h 05m
American Airlines
Mon 3/303:45 pm
YUL
- STL
1 stop18h 44m
American Airlines
Deal found 2/27![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 2/27. 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.
Wed 3/2510:33 am
STL
- YUL
2 stops11h 11m
American Airlines
Tue 3/313:45 pm
YUL
- STL
1 stop8h 59m
American Airlines
Deal found 2/27![American Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:59 pm
STL
- YUL
1 stop30h 31m
Multiple Airlines
Tue 4/216:45 am
YUL
- STL
2 stops25h 05m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$390
This American Airlines deal was found by Cheapflights users on 2/26. 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 4/96:29 am
STL
- YUL
1 stop7h 58m
American Airlines
Mon 4/1312:30 pm
YUL
- STL
1 stop10h 47m
American Airlines
Deal found 2/26![American Airlines logo]()
$435
This American Airlines deal was found by Cheapflights users on 2/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:03 pm
STL
- YUL
1 stop14h 41m
American Airlines
Tue 4/2112:30 pm
YUL
- STL
1 stop10h 49m
American Airlines
Deal found 2/28![American Airlines logo]()
$455
This American Airlines deal was found by Cheapflights users on 2/27. 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.
Wed 3/257:05 am
STL
- YUL
1 stop5h 40m
American Airlines
Mon 3/303:45 pm
YUL
- STL
1 stop18h 44m
American Airlines
Deal found 2/27![American Airlines logo]()
$462
This American Airlines deal was found by Cheapflights users on 2/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:21 pm
STL
- YUL
1 stop17h 23m
American Airlines
Mon 5/412:30 pm
YUL
- STL
1 stop10h 47m
American Airlines
Deal found 2/28![American Airlines logo]()
$477
This Delta deal was found by Cheapflights users on 2/25. 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 7/285:00 pm
STL
- YUL
1 stop14h 43m
Delta
Tue 8/47:45 pm
YUL
- STL
1 stop13h 59m
Delta
Deal found 2/25![Delta logo]()
$485
Best flights from St. Louis to MontrealDiscover carefully curated flight deals from St. Louis to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 1, 2026.
Discover carefully curated flight deals from St. Louis to Montreal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 1, 2026.
This Delta deal was found by Cheapflights users on 2/25. 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 7/275:00 pm
STL
- YUL
1 stop14h 43m
Delta
Tue 8/47:45 pm
YUL
- STL
1 stop13h 59m
Delta
Deal found 2/25![Delta logo]()
$504
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Sat 6/66:00 am
STL
- YUL
1 stop6h 09m
United Airlines
Wed 7/19:45 am
YUL
- STL
1 stop7h 01m
United Airlines
Deal found 2/25![United Airlines logo]()
$540
This Delta deal was found by Cheapflights users on 2/25. 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 7/285:00 pm
STL
- YUL
1 stop14h 43m
Delta
Wed 8/57:45 pm
YUL
- STL
1 stop13h 59m
Delta
Deal found 2/25![Delta logo]()
$504
This United Airlines deal was found by Cheapflights users on 2/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:00 am
STL
- YUL
1 stop6h 09m
United Airlines
Sun 6/149:45 am
YUL
- STL
1 stop7h 01m
United Airlines
Deal found 2/28![United Airlines logo]()
$556
This Delta deal was found by Cheapflights users on 2/25. 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 8/35:00 pm
STL
- YUL
1 stop14h 43m
Delta
Mon 11/236:00 am
YUL
- STL
1 stop4h 36m
Delta
Deal found 2/25![Delta logo]()
$539
This United Airlines deal was found by Cheapflights users on 2/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:00 am
STL
- YUL
1 stop10h 30m
United Airlines
Mon 7/279:45 am
YUL
- STL
1 stop12h 31m
United Airlines
Deal found 2/27![United Airlines logo]()
$556
This Delta deal was found by Cheapflights users on 2/25. 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.
Wed 7/293:42 pm
STL
- YUL
1 stop7h 14m
Delta
Thu 8/67:45 pm
YUL
- STL
1 stop13h 59m
Delta
Deal found 2/25![Delta logo]()
$539
This United Airlines deal was found by Cheapflights users on 2/25. 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 8/36:01 am
STL
- YUL
1 stop6h 08m
United Airlines
Mon 11/237:00 am
YUL
- STL
2 stops9h 38m
United Airlines
Deal found 2/25![United Airlines logo]()
$565
This Delta deal was found by Cheapflights users on 2/25. 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.
Sat 8/15:45 pm
STL
- YUL
1 stop4h 25m
Delta
Wed 8/57:45 pm
YUL
- STL
1 stop13h 59m
Delta
Deal found 2/25![Delta logo]()
$539
This Delta deal was found by Cheapflights users on 2/25. 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.
Thu 7/235:30 pm
STL
- YUL
1 stop5h 26m
Delta
Mon 7/277:00 am
YUL
- STL
1 stop9h 58m
Delta
Deal found 2/25![Delta logo]()
$556
Last-minute flights from St. Louis to MontrealDiscover last-minute flight deals from St. Louis to Montreal. Data last updated March 1, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Montreal. Data last updated March 1, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 2/25. 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.
Sun 3/157:03 am
STL
- YUL
1 stop9h 28m
Delta
Wed 3/1812:50 pm
YUL
- STL
1 stop8h 52m
Delta
Deal found 2/25![Delta logo]()
$596
This American Airlines deal was found by Cheapflights users on 2/25. 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 3/157:05 am
STL
- YUL
1 stop14h 39m
American Airlines
Wed 3/1812:59 pm
YUL
- STL
2 stops11h 45m
American Airlines
Deal found 2/25![American Airlines logo]()
$662
This American Airlines deal was found by Cheapflights users on 2/27. 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.
Wed 3/2510:33 am
STL
- YUL
2 stops11h 11m
American Airlines
Tue 3/313:45 pm
YUL
- STL
1 stop8h 59m
American Airlines
Deal found 2/27![American Airlines logo]()
$378
This American Airlines deal was found by Cheapflights users on 2/27. 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.
Wed 3/257:05 am
STL
- YUL
1 stop5h 40m
American Airlines
Mon 3/303:45 pm
YUL
- STL
1 stop18h 44m
American Airlines
Deal found 2/27![American Airlines logo]()
$462
This American Airlines deal was found by Cheapflights users on 2/27. 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.
Thu 3/266:00 am
STL
- YUL
1 stop8h 05m
American Airlines
Mon 3/303:45 pm
YUL
- STL
1 stop18h 44m
American Airlines
Deal found 2/27![American Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2611:21 am
STL
- YUL
2 stops36h 09m
Multiple Airlines
Mon 3/306:45 pm
YUL
- STL
1 stop6h 13m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 2/25. 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.
Fri 3/275:25 pm
STL
- YUL
1 stop5h 15m
Delta
Sat 4/47:00 am
YUL
- STL
1 stop6h 07m
Delta
Deal found 2/25![Delta logo]()
$556
This Delta deal was found by Cheapflights users on 2/27. 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.
Sun 3/296:00 am
STL
- YUL
2 stops11h 35m
Delta
Sat 4/47:00 am
YUL
- STL
1 stop8h 24m
Delta
Deal found 2/27![Delta logo]()
$609
One-way flights from St. Louis to MontrealSearch for one-way flight options from St. Louis to Montreal. Find affordable one-way fares based on user searches. Data last updated March 1, 2026.
Search for one-way flight options from St. Louis to Montreal. Find affordable one-way fares based on user searches. Data last updated March 1, 2026.
This American Airlines deal was found by Cheapflights users on 2/26. 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 5/18:03 pm
STL
- YUL
1 stop14h 41m
American Airlines
Deal found 2/26![American Airlines logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2312:16 pm
STL
- YUL
3 stops25h 54m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:59 pm
STL
- YUL
1 stop30h 31m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:29 pm
STL
- YUL
2 stops29h 01m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:50 am
STL
- YUL
3 stops13h 48m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 2/26. 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.
Thu 4/3011:21 am
STL
- YUL
2 stops25h 52m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 5/18:23 pm
STL
- YUL
3 stops40h 50m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$225
Find flight deals from St. Louis to Montreal
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Montreal (YMQ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $369 (American Airlines) |
One-way from | $128 (American Airlines) |
Popular in | October |
Cheapest in | June |
Average price | $710 |
Good round-trip deal | $801 or less |
Good one-way deal | $299 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 1, 2026.
Use the filters below to find and compare flights from St. Louis to Montreal that are best for you.
Fly from
Fly to
Route
Depart
Return
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Mon 7/27
5:00 pm-8:43 am
1 stop14h 43m
Montreal Pierre Elliott Trudeau Intl
Tue 8/4
7:45 pm-8:44 am
1 stop13h 59m
$504
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Tue 7/28
5:00 pm-8:43 am
1 stop14h 43m
Montreal Pierre Elliott Trudeau Intl
Wed 8/5
7:45 pm-8:44 am
1 stop13h 59m
$504
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Mon 8/3
5:00 pm-8:43 am
1 stop14h 43m
Montreal Pierre Elliott Trudeau Intl
Mon 11/23
6:00 am-9:36 am
1 stop4h 36m
$539
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Wed 7/29
3:42 pm-11:56 pm
1 stop7h 14m
Montreal Pierre Elliott Trudeau Intl
Thu 8/6
7:45 pm-8:44 am
1 stop13h 59m
$539
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Sat 8/1
5:45 pm-11:10 pm
1 stop4h 25m
Montreal Pierre Elliott Trudeau Intl
Wed 8/5
7:45 pm-8:44 am
1 stop13h 59m
$539
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Sat 6/6
6:00 am-1:09 pm
1 stop6h 09m
Montreal Pierre Elliott Trudeau Intl
Wed 7/1
9:45 am-3:46 pm
1 stop7h 01m
$540
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Thu 6/11
6:00 am-1:09 pm
1 stop6h 09m
Montreal Pierre Elliott Trudeau Intl
Sun 6/14
9:45 am-3:46 pm
1 stop7h 01m
$556
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Thu 7/23
6:00 am-5:30 pm
1 stop10h 30m
Montreal Pierre Elliott Trudeau Intl
Mon 7/27
9:45 am-9:16 pm
1 stop12h 31m
$556
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Thu 7/23
5:30 pm-11:56 pm
1 stop5h 26m
Montreal Pierre Elliott Trudeau Intl
Mon 7/27
7:00 am-3:58 pm
1 stop9h 58m
$556
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Mon 8/3
6:01 am-1:09 pm
1 stop6h 08m
Montreal Pierre Elliott Trudeau Intl
Mon 11/23
7:00 am-3:38 pm
2 stops9h 38m
$565
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Montreal
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Montreal in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Montreal flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Montreal flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Montreal flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Montreal flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Montreal flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Montreal
Have a flexible travel schedule? Discover the best time to fly to Montreal from St. Louis with our price prediction graph.
STL-YMQ
STL-YUL
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 St. Louis to Montreal
STL-YMQ
STL-YUL
What is the cheapest month to book a flight from St. Louis to Montreal?
Currently, July is the cheapest month in which you can book a flight from St. Louis to Montreal (average of $220). Flying from St. Louis to Montreal in February is currently the most expensive (average of $1,289). 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.
How much does it cost to fly round-trip from St. Louis to Montreal?
Reviews of airlines servicing Montreal
Get insights into the airlines that provide service to Montreal. 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 Montreal. Reviews last updated March 1, 2026.
Read through reviews of airlines operating flights from St. Louis to Montreal, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Other flights to Montreal
Explore flights to Montreal departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 1, 2026.
St. Louis and Montreal flights
Browse other St. Louis and Montreal flight options. Last updated on March 1, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on March 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from St. Louis to Montreal
Discover the top 4 airlines that operate flights from St. Louis 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 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$212 | Average$634 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$239 | Average$765 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$318 | Average$667 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$348 | Average$650 | FlexibilityNo cancel fee | On-time71% |