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Cheap flights from St. Louis (STL) to Montreal (YMQ) from $256

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 7/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — YMQ
Apr 25 — May 21
From?
To?
Thu 4/25
Thu 5/2
1 adult, Economy
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The best prices from Lambert-St Louis to Montreal are usually found in January or September, booked 19 days in advance, depart on a Saturday or Friday and return on a Friday

Cheap 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 April 20, 2024.

Popular in

August

Cheapest in

January

Round-trip from

$276

One-way from

$266
High demand for flights, 13% potential price rise
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Best time to find cheap flights, 10% potential price drop
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From Lambert-St Louis to Montreal (YMQ)
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One-way flight from Lambert-St Louis to Montreal (YMQ)
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What is the cheapest day to fly round-trip from St. Louis to Montreal?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 51% on the overall cost on flights from St. Louis to Montreal.

How far in advance should I book a flight from St. Louis to Montreal?

Users have found that booking a flight from St. Louis to Montreal at least 20 days early can save you up to 167% on average compared to booking a flight this week. If booking 20 days before your flight isn’t an option for you, users have found flights from St. Louis to Montreal for as little as $579 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $808 for flights departing within the next 3 days.

What is the cheapest month to fly from St. Louis to Montreal?

Flights from St. Louis to Montreal lean towards being more expensive in August. Prices are generally better when you fly from St. Louis to Montreal in January, with the cheapest ticket starting at $310.

When is the cheapest time to fly from St. Louis to Montreal (STL - YMQ)?

A simple way to save on the total cost of your ticket is to fly from St. Louis to Montreal at noon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the morning.

Cheap Air Canada flights from St. Louis to Montreal

Explore cheap flight options specifically provided by Air Canada for the route between St. Louis and Montreal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,138,949 searches. Data last updated April 20, 2024.
Consider these cheap Air Canada flights we've found departing from St. Louis to Montreal. Make sure to double check the flight details before booking.
Wed 5/811:00 amSTL - YUL
Nonstop2h 23mAir Canada
Sat 5/117:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/17$532
Fri 5/1011:00 amSTL - YUL
Nonstop2h 23mAir Canada
Fri 5/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/19$536
Wed 5/811:10 amSTL - YUL
1 stop5h 10mAir Canada
Sat 5/117:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/17$542
Sat 5/118:47 amSTL - YUL
1 stop7h 22mAir Canada
Fri 5/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/19$545
Fri 5/1011:00 amSTL - YUL
Nonstop2h 23mAir Canada
Wed 5/2211:10 amYUL - STL
1 stop5h 11mAir Canada
Deal found 4/19$546
Sat 5/118:47 amSTL - YUL
1 stop7h 22mAir Canada
Fri 5/2411:10 amYUL - STL
1 stop5h 11mAir Canada
Deal found 4/19$556
Wed 7/2412:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Tue 7/307:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$563
Wed 5/154:05 pmSTL - YUL
1 stop7h 43mAir Canada
Thu 5/307:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$569
Wed 7/2410:10 amSTL - YUL
1 stop7h 08mAir Canada
Tue 7/307:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$573

Cheap WestJet flights from St. Louis to Montreal

Explore cheap flight options specifically provided by WestJet for the route between St. Louis and Montreal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,138,949 searches. Data last updated April 20, 2024.
Some of the lowest-priced WestJet flights we've found at this time heading from St. Louis to Montreal. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sun 5/126:00 amSTL - YUL
1 stop5h 29mWestJet
Thu 5/2310:00 amYUL - STL
1 stop5h 19mWestJet
Deal found 4/19$559
Wed 5/2912:00 pmSTL - YUL
1 stop10h 08mWestJet
Sun 6/27:10 amYUL - STL
1 stop15h 24mWestJet
Deal found 4/19$586
Sat 7/276:15 amSTL - YUL
1 stop16h 00mWestJet
Mon 7/297:30 amYUL - STL
1 stop15h 06mWestJet
Deal found 4/18$599
Mon 5/136:30 amSTL - YUL
1 stop15h 38mWestJet
Fri 5/241:05 pmYUL - STL
1 stop9h 29mWestJet
Deal found 4/19$625
Wed 10/96:45 amSTL - YUL
1 stop8h 25mWestJet
Sat 10/127:00 amYUL - STL
1 stop7h 08mWestJet
Deal found 4/18$643
Sat 5/41:01 pmSTL - YUL
1 stop9h 53mWestJet
Wed 5/86:46 pmYUL - STL
1 stop5h 54mWestJet
Deal found 4/18$657

Cheap St. Louis to Montreal flights in April & May 2024

Find cheap flight options from St. Louis to Montreal specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,138,949 searches. Prices were last updated on April 20, 2024.
These are some of the best deals we've found on flights to Montreal in 2024 at this time. Check back regularly for other flight deals.
Tue 5/2810:34 amSTL - YUL
2 stops12h 59mMultiple Airlines
Sun 6/26:50 amYUL - STL
1 stop11h 39mMultiple Airlines
Deal found 4/19$456
Thu 5/93:55 pmSTL - YUL
3 stops20h 50mMultiple Airlines
Tue 5/216:35 pmYUL - STL
3 stops18h 30mMultiple Airlines
Deal found 4/19$477
Thu 5/93:55 pmSTL - YUL
3 stops20h 50mMultiple Airlines
Thu 5/2312:50 pmYUL - STL
3 stops19h 15mMultiple Airlines
Deal found 4/19$501
Fri 5/103:27 pmSTL - YUL
1 stop7h 32mDelta
Wed 5/226:10 amYUL - STL
1 stop9h 00mDelta
Deal found 4/19$527
Wed 5/811:00 amSTL - YUL
Nonstop2h 23mAir Canada
Sat 5/117:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/17$532
Fri 5/1011:00 amSTL - YUL
Nonstop2h 23mAir Canada
Fri 5/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/19$536
Wed 5/811:10 amSTL - YUL
1 stop5h 10mAir Canada
Sat 5/117:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/17$542
Sun 5/126:00 amSTL - YUL
1 stop5h 29mMultiple Airlines
Mon 5/201:05 pmYUL - STL
1 stop8h 21mMultiple Airlines
Deal found 4/19$544
Sat 5/118:47 amSTL - YUL
1 stop7h 22mAir Canada
Fri 5/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/19$545

St. Louis to Montreal 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Montreal in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,138,949 searches. Data last updated April 20, 2024.
These are some of the best deals we've found on flights to Montreal in 2024 at this time. Check back regularly for other flight deals.
Tue 5/2810:34 amSTL - YUL
2 stops12h 59mMultiple Airlines
Sun 6/26:50 amYUL - STL
1 stop11h 39mMultiple Airlines
Deal found 4/19$456
Thu 5/93:55 pmSTL - YUL
3 stops20h 50mMultiple Airlines
Tue 5/216:35 pmYUL - STL
3 stops18h 30mMultiple Airlines
Deal found 4/19$477
Thu 5/93:55 pmSTL - YUL
3 stops20h 50mMultiple Airlines
Thu 5/2312:50 pmYUL - STL
3 stops19h 15mMultiple Airlines
Deal found 4/19$501
Fri 5/103:27 pmSTL - YUL
1 stop7h 32mDelta
Wed 5/226:10 amYUL - STL
1 stop9h 00mDelta
Deal found 4/19$527
Wed 5/811:00 amSTL - YUL
Nonstop2h 23mAir Canada
Sat 5/117:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/17$532
Fri 5/1011:00 amSTL - YUL
Nonstop2h 23mAir Canada
Fri 5/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/19$536
Wed 5/811:10 amSTL - YUL
1 stop5h 10mAir Canada
Sat 5/117:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/17$542
Sun 5/126:00 amSTL - YUL
1 stop5h 29mMultiple Airlines
Mon 5/201:05 pmYUL - STL
1 stop8h 21mMultiple Airlines
Deal found 4/19$544
Sat 5/118:47 amSTL - YUL
1 stop7h 22mAir Canada
Fri 5/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/19$545

Non-stop flights to Montreal from St. Louis

Discover non-stop flight options from St. Louis to Montreal. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,138,949 searches. Data last updated April 20, 2024.
Consider booking one of these non-stop flights heading from St. Louis to Montreal. Users can also choose from other St. Louis to Montreal flights by using the search form above.
Wed 5/811:00 amSTL - YUL
Nonstop2h 23mAir Canada
Sat 5/117:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/17$532
Fri 5/1011:00 amSTL - YUL
Nonstop2h 23mAir Canada
Fri 5/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/19$536
Wed 7/2412:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Tue 7/307:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$563
Fri 7/2612:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Fri 8/27:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$581
Wed 5/811:00 amSTL - YUL
Nonstop2h 23mAir Canada
Sat 5/117:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$605
Thu 5/911:00 amSTL - YUL
Nonstop2h 23mAir Canada
Fri 5/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/19$609
Sat 10/512:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Tue 10/87:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$649
Thu 7/1112:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Wed 7/177:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$678
Fri 10/412:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Tue 10/87:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 4/18$680

One-way flights to Montreal from St. Louis

Search for one-way flight options from St. Louis to Montreal. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,138,949 searches. Data last updated April 20, 2024.
Take a look at some of the best available options we've come across on one-way flights from St. Louis to Montreal. Users needing a return flight from St. Louis to Montreal should utilize the search form above.
Sat 7/1312:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Deal found 4/19$256
Fri 7/54:00 pmSTL - YUL
1 stop6h 10mDelta
Deal found 4/18$266
Sat 4/276:24 pmSTL - YUL
1 stop23h 36mMultiple Airlines
Deal found 4/19$272
Fri 7/512:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Deal found 4/18$275
Sat 4/2711:39 amSTL - YUL
2 stops30h 21mMultiple Airlines
Deal found 4/19$285
Fri 7/56:00 amSTL - YUL
2 stops9h 40mAmerican Airlines
Deal found 4/18$289
Sat 7/135:46 pmSTL - YUL
2 stops15h 09mAmerican Airlines
Deal found 4/19$302
Tue 4/302:35 pmSTL - YUL
3 stops20h 40mMultiple Airlines
Deal found 4/17$324
Sat 4/2711:39 amSTL - YUL
3 stops30h 21mMultiple Airlines
Deal found 4/19$338

Find flights from St. Louis to Montreal within your budget

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 3,138,949 searches. Data last updated April 20, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$456 - $617

Route

Depart

Return

Price

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 5/28

2 stops12h 59m

Montreal Pierre Elliott Trudeau Intl

Sun 6/2

1 stop11h 39m

$456

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Thu 5/9

3 stops20h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 5/21

3 stops18h 30m

$477

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Thu 5/9

3 stops20h 50m

Montreal Pierre Elliott Trudeau Intl

Thu 5/23

3 stops19h 15m

$501

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Fri 5/10

1 stop7h 32m

Montreal Pierre Elliott Trudeau Intl

Wed 5/22

1 stop9h 00m

$527

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Wed 5/8

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Sat 5/11

Nonstop2h 35m

$532

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Fri 5/10

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Fri 5/24

Nonstop2h 35m

$536

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sun 5/12

1 stop5h 29m

Montreal Pierre Elliott Trudeau Intl

Thu 5/23

1 stop5h 19m

$559

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Fri 5/10

1 stop5h 46m

Montreal Pierre Elliott Trudeau Intl

Fri 5/24

1 stop5h 58m

$560

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 7/30

1 stop7h 22m

Montreal Pierre Elliott Trudeau Intl

Tue 7/30

1 stop16h 16m

$617

Flights are sorted by cheapest first

Deals found on 4/19

When is the best time to book a flight from St. Louis to Montreal?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Montreal. Price data was last updated on January 28, 2024.
The best time to book flights from St. Louis to Montreal is 19 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from St. Louis to Montreal?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Montreal. Price data was last updated on April 14, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Montreal flight should consider departing on Saturday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Montreal by month

Plan your trip from St. Louis to Montreal by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Montreal is currently $290 while a round-trip flight costs $529. Price data was last updated on April 14, 2024.

Currently, February is the cheapest month in which you can book a flight from St. Louis to Montreal (average of $245). Flying from St. Louis to Montreal in July is currently the most expensive (average of $452). 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.

January

$267

February

$245

March

$313

April

$305

May

$324

June

$425

July

$452

August

$438

September

$383

October

$336

November

$299

December

$274

Temperature and rainfall in Montreal by month

Plan your trip to Montreal by taking into account the average temperature and rainfall totals by month.

YMQ

Temperature

15.8 - 71.6 °F

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 April 20, 2024.
Read through reviews of airlines operating flights from St. Louis to Montreal, such as Air Canada, WestJet and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
11,094 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
11,094 reviews
Delta
8.1
Very good
11,094 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

WestJet
7.5
Good
3,004 reviews
Delta
8.1
Very good
11,094 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

United Airlines
7.4
Good
11,325 reviews
Delta
8.1
Very good
11,094 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

American Airlines
7.3
Good
14,955 reviews
Delta
8.1
Very good
11,094 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Air Canada
7.0
Good
6,844 reviews
Delta
8.1
Very good
11,094 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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.

  • What airport do you fly from for flights from St. Louis to Montreal?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Montreal. On average, Lambert-St Louis has 0 outbound flights to Montreal per day from 4 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • Can I find flights from St. Louis to Montreal for under $500 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Montreal for under $500. The cheapest flight booked recently is on Multiple Airlines for just $456, but on average you can expect to pay $540.

  • Are there nonstop flights from St. Louis to Montreal for under $600 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Montreal under $600. A good price for a nonstop flight from St. Louis to Montreal is less than $833.

  • What are the cheapest airlines flying from St. Louis to Montreal round-trip?

    Cheapflights users have booked flights from St. Louis to Montreal round-trip from $527. Other airlines that can offer you cheap pricing are Air Canada, from $532, and WestJet, from $559. Delta is currently priced 9% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from St. Louis to Montreal one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $256. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from St. Louis to Montreal for a low price.

  • What are the most popular airlines that fly from St. Louis to Montreal?

    Before booking your flight from St. Louis to Montreal check out the most popular airlines for this route: American Airlines, Air Canada or Delta.

  • What are the cheapest flights from St. Louis to Montreal?

    Looking at all options, your cheapest flight can be booked for $313. While the most popular route (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) can be booked for $487 on average our data indicates $1,026 when flying from St. Louis to Montreal.

  • What does STL to YUL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Montreal Pierre Elliott Trudeau Intl Airport flight would often be abbreviated as a STL to YUL flight. Montreal St Hubert Airport (YHU) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from St. Louis to Montreal that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Montreal flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Montreal with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Montreal flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Montreal that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Montreal?

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

  • Can I find deals for business class flights from St. Louis to Montreal?

    Yes. Cheapflights offers flight deals from St. Louis 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.

  • Can I find deals for flights from St. Louis to Montreal that allow pets onboard?

    Many airlines flying from St. Louis to Montreal offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Montreal?

    Yes, you can often find last-minute deals on St. Louis to Montreal flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Montreal flight deals updated?

    The St. Louis to Montreal flight deals you see on this page were last updated on 4/19.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Montreal
See prices for flight routes from nearby airports that may be better suited for you.

St. Louis to Pierre Elliott Trudeau Intl flights
Kansas City to Québec City flights
St. Louis to Québec City flights
Springfield to Pierre Elliott Trudeau Intl flights

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 3,138,949 searches. Data last updated April 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$237Average$503FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$248Average$595FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$274Average$497FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$383Average$599FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from St. Louis to Montreal by cabin class

Find flights from St. Louis to Montreal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Prem Econ Class
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Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Montreal?

Cheapflights helps you search for flights from St. Louis to Montreal via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Montreal?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Montreal from St. Louis.

Can Cheapflights find flights from St. Louis to Montreal with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Montreal, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Montreal become cheaper?

Yes, Cheapflights offers price alerts on St. Louis to Montreal flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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