$180+ Cheap flights from St. Louis (STL) to Pierre Elliott Trudeau Intl (YUL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YUL
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Pierre Elliott Trudeau Intl 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Pierre Elliott Trudeau Intl
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Best
Last-minute
One-way
Cheapest flights from St. Louis to Pierre Elliott Trudeau IntlExplore the most affordable flight options available from St. Louis to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from St. Louis to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/23. 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 12/88:24 pm -
1 stop14h 04m
Tue 12/1512:08 pm -
1 stop8h 50m
Deal found 10/23![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 10/21. 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 12/55:23 pm -
1 stop17h 05m
Sat 12/1212:08 pm -
1 stop8h 49m
Deal found 10/21![American Airlines logo]()
$458
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/105:29 pm -
1 stop16h 56m
Mon 11/161:04 pm -
2 stops11h 55m
Deal found 10/22![American Airlines logo]()
$468
This American Airlines deal was found by Cheapflights users on 10/20. 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 11/105:29 pm -
1 stop16h 56m
Thu 11/1212:10 pm -
1 stop12h 49m
Deal found 10/20![American Airlines logo]()
$495
This American Airlines deal was found by Cheapflights users on 10/24. 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 11/278:12 pm -
1 stop14h 14m
Tue 12/112:10 pm -
1 stop12h 51m
Deal found 10/24![American Airlines logo]()
$508
This Mytrip deal was found by Cheapflights users on 10/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:04 pm -
3 stops27h 01m
Mon 11/239:45 am -
3 stops23h 09m
Deal found 10/25![Multiple Airlines logo]()
$514
Best flights from St. Louis to Pierre Elliott Trudeau IntlDiscover carefully curated flight deals from St. Louis to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from St. Louis to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/23. 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 12/88:24 pm -
1 stop14h 04m
Tue 12/1512:08 pm -
1 stop8h 50m
Deal found 10/23![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 10/20. 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 12/166:05 pm -
2 stops13h 43m
Tue 1/59:28 am -
1 stop12h 23m
Deal found 10/20![Delta logo]()
$562
This Mytrip deal was found by Cheapflights users on 10/20. 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 11/102:00 pm -
3 stops31h 10m
Thu 11/126:45 am -
3 stops30h 48m
Deal found 10/20![Multiple Airlines logo]()
$648
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/265:00 am -
1 stop8h 00m
Mon 11/301:10 pm -
1 stop5h 59m
Deal found 10/24![United Airlines logo]()
$830
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/105:29 pm -
1 stop16h 56m
Mon 11/161:04 pm -
2 stops11h 55m
Deal found 10/22![American Airlines logo]()
$468
This American Airlines deal was found by Cheapflights users on 10/23. 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 2/58:15 pm -
1 stop14h 15m
Sun 2/712:10 pm -
1 stop12h 47m
Deal found 10/23![American Airlines logo]()
$468
This American Airlines deal was found by Cheapflights users on 10/20. 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 11/105:29 pm -
1 stop16h 56m
Thu 11/1212:10 pm -
1 stop12h 49m
Deal found 10/20![American Airlines logo]()
$495
This Mytrip deal was found by Cheapflights users on 10/23. 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.
Wed 11/256:35 pm -
3 stops23h 37m
Sun 11/295:25 pm -
3 stops25h 15m
Deal found 10/23![Multiple Airlines logo]()
$743
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/166:20 pm -
2 stops23h 52m
Tue 1/56:15 pm -
1 stop6h 24m
Deal found 10/22![Multiple Airlines logo]()
$802
This American Airlines deal was found by Cheapflights users on 10/20. 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 4/57:50 pm -
1 stop14h 54m
Tue 4/1312:30 pm -
1 stop12h 16m
Deal found 10/20![American Airlines logo]()
$765
Last-minute flights from St. Louis to Pierre Elliott Trudeau IntlDiscover last-minute flight deals from St. Louis to Pierre Elliott Trudeau Intl. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Pierre Elliott Trudeau Intl. Data last updated October 25, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/105:29 pm -
1 stop16h 56m
Mon 11/161:04 pm -
2 stops11h 55m
Deal found 10/22![American Airlines logo]()
$468
This American Airlines deal was found by Cheapflights users on 10/20. 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 11/105:29 pm -
1 stop16h 56m
Thu 11/1212:10 pm -
1 stop12h 49m
Deal found 10/20![American Airlines logo]()
$495
This Mytrip deal was found by Cheapflights users on 10/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:04 pm -
3 stops27h 01m
Mon 11/239:45 am -
3 stops23h 09m
Deal found 10/25![Multiple Airlines logo]()
$514
This American Airlines deal was found by Cheapflights users on 10/24. 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 11/278:12 pm -
1 stop14h 14m
Tue 12/112:10 pm -
1 stop12h 51m
Deal found 10/24![American Airlines logo]()
$508
One-way flights from St. Louis to Pierre Elliott Trudeau IntlSearch for one-way flight options from St. Louis to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from St. Louis to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/23. 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 11/138:15 pm -
1 stop14h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![American Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 12/212:05 pm -
3 stops26h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/137:59 pm -
3 stops46h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/249:50 am -
3 stops11h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$204
This American Airlines deal was found by Cheapflights users on 10/22. 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 12/68:24 pm -
1 stop14h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![American Airlines logo]()
$210
This American Airlines deal was found by Cheapflights users on 10/24. 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 12/18:12 pm -
1 stop14h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![American Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/16:13 pm -
3 stops44h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/62:00 pm -
3 stops31h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$262
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/248:05 am -
1 stop8h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$264
This Delta deal was found by Cheapflights users on 10/23. 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 12/26:32 am -
2 stops11h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Delta logo]()
$288
This Delta deal was found by Cheapflights users on 10/22. 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 12/66:05 pm -
2 stops13h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Delta logo]()
$293
Find flight deals from St. Louis to Pierre Elliott Trudeau Intl
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Pierre Elliott Trudeau Intl (YUL). 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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $396 (American Airlines) |
One-way from | $180 (American Airlines) |
Popular in | October |
Cheapest in | August |
Average price | $869 |
Good round-trip deal | $807 or less |
Good one-way deal | $514 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Wed 12/2
12:05 pm-4:00 pm
3 stops26h 55m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$199
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Sun 12/6
8:24 pm-11:28 am
1 stop14h 04m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$210
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Tue 12/1
8:12 pm-11:28 am
1 stop14h 16m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$225
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Tue 12/1
6:13 pm-4:00 pm
3 stops44h 47m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$239
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Sun 12/6
2:00 pm-10:11 pm
3 stops31h 11m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$262
Quickest round-trip
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Thu 12/24
8:05 am-5:07 pm
1 stop8h 02m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$264
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Sun 12/6
6:05 pm-8:48 am
2 stops13h 43m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$293
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Fri 11/13
1:28 pm-10:17 pm
2 stops31h 49m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$301
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Thu 12/24
9:15 am-9:32 pm
2 stops11h 17m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$303
St. LouisMontreal
STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl
STLYUL
Lambert-St Louis
Tue 12/8
8:24 pm-11:28 am
1 stop14h 04m
Montreal Pierre Elliott Trudeau Intl
Tue 12/15
12:08 pm-7:58 pm
1 stop8h 50m
$419
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Pierre Elliott Trudeau Intl
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 Pierre Elliott Trudeau Intl in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Montreal Pierre Elliott Trudeau Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl
Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from St. Louis with our price prediction graph.
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 Pierre Elliott Trudeau Intl Airport
What is the cheapest time of day to fly from STL to YUL?
Find hourly flight availability from St. Louis 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 October 25, 2026.
When flying from St. Louis 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.
How much does it cost to fly round-trip from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?
Airfare is below average for this route at the moment.
St. Louis to Montreal Pierre Elliott Trudeau Intl Airport flights typically cost between $530 and $864 in February.The cheapest round-trip price found within the last 5 days was $396 on American Airlines (Feb 3-Feb 6).
Reviews of airlines servicing Pierre Elliott Trudeau Intl
Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl. Reviews last updated October 25, 2026.
Get a feel of what it's like to fly with United Airlines and Air Canada from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Entertainment
7.1
Overall
7.3
Comfort
7.3
Food
6.7
Boarding
7.7
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Crew
8.1
Entertainment
7.1
Overall
7.3
Comfort
7.3
Food
6.7
Boarding
7.7
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Crew
8.1
Entertainment
7.1
Overall
7.3
Comfort
7.3
Food
6.7
Boarding
7.7
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Related info for your journey
Find useful and relevant information for your journey from St. Louis 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.
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 locationsCornwall
Longueuil
Laval
Dorval
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St. Louis and Pierre Elliott Trudeau Intl flights
Browse other St. Louis and Pierre Elliott Trudeau Intl flight options. Last updated on October 25, 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 October 25, 2026.
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Top 3 airlines flying from St. Louis to Pierre Elliott Trudeau Intl
Discover the top 3 airlines that operate flights from St. Louis 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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$257 | Average$665 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$288 | Average$704 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$743 | FlexibilityNo cancel fee | On-time69% |