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Cheap flights from St. Louis (STL) to Montreal (YMQ) from $168

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 5/30. 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
May 12 — May 191
From?
To?
Sun 5/12
Sun 5/19
1 adult, Economy
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The best prices from Lambert-St Louis to Montreal are usually found in February or January, booked 52 days in advance, depart on a Saturday or Friday and return on a Thursday

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 May 7, 2024.

Popular in

August

Cheapest in

February

Round-trip from

$276

One-way from

$182
High demand for flights, 20% potential price rise
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Best time to find cheap flights, 36% 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 53 days early can save you up to 191% on average compared to booking a flight this week. If booking 53 days before your flight isn’t an option for you, users have found flights from St. Louis to Montreal for as little as $387 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 $756 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 February, with the cheapest ticket starting at $219.

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 16% on your trip compared to booking a flight in the morning.

Cheap Delta flights from St. Louis to Montreal

Explore cheap flight options specifically provided by Delta 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 2,749,864 searches. Data last updated May 7, 2024.
Consider these cheap Delta flights we've found departing from St. Louis to Montreal. Make sure to double check the flight details before booking.
Wed 6/191:10 pmSTL - YUL
1 stop8h 55mDelta
Wed 6/2610:00 amYUL - STL
1 stop9h 11mDelta
Deal found 5/7$447
Tue 6/410:45 amSTL - YUL
1 stop9h 30mDelta
Tue 6/1110:00 amYUL - STL
1 stop9h 11mDelta
Deal found 5/6$457
Wed 6/196:55 pmSTL - YUL
1 stop13h 15mDelta
Thu 6/277:05 amYUL - STL
1 stop5h 56mDelta
Deal found 5/6$460
Thu 6/205:25 pmSTL - YUL
1 stop5h 30mDelta
Sun 6/237:30 amYUL - STL
1 stop8h 03mDelta
Deal found 5/6$474
Sat 6/154:02 pmSTL - YUL
1 stop6h 52mDelta
Tue 6/1810:00 amYUL - STL
2 stops11h 37mDelta
Deal found 5/7$510
Wed 6/191:10 pmSTL - YUL
1 stop8h 55mDelta
Wed 6/267:00 amYUL - STL
2 stops11h 20mDelta
Deal found 5/7$517
Tue 9/35:30 pmSTL - YUL
1 stop4h 32mDelta
Thu 9/511:15 amYUL - STL
2 stops11h 02mDelta
Deal found 5/7$520
Wed 5/156:00 amSTL - YUL
1 stop8h 14mDelta
Thu 5/306:10 amYUL - STL
1 stop9h 09mDelta
Deal found 5/6$630

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 2,749,864 searches. Data last updated May 7, 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.
Wed 6/197:15 amSTL - YUL
1 stop9h 27mWestJet
Wed 6/267:05 amYUL - STL
1 stop5h 56mWestJet
Deal found 5/7$488
Mon 5/203:27 pmSTL - YUL
1 stop20h 02mWestJet
Thu 5/235:15 pmYUL - STL
1 stop5h 19mWestJet
Deal found 5/6$532
Sat 6/225:25 pmSTL - YUL
1 stop5h 30mWestJet
Mon 6/247:05 amYUL - STL
1 stop5h 56mWestJet
Deal found 5/6$539
Tue 8/1311:51 amSTL - YUL
2 stops31h 24mWestJet
Fri 8/1612:45 pmYUL - STL
1 stop23h 02mWestJet
Deal found 5/6$544
Wed 6/196:00 amSTL - YUL
2 stops30h 20mWestJet
Wed 6/267:00 amYUL - STL
1 stop6h 19mWestJet
Deal found 5/7$573
Mon 5/136:00 amSTL - YUL
1 stop10h 36mWestJet
Thu 5/161:05 pmYUL - STL
1 stop9h 29mWestJet
Deal found 5/6$803

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

Find cheap flight options from St. Louis to Montreal specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,749,864 searches. Prices were last updated on May 7, 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 6/410:34 amSTL - YUL
3 stops26h 11mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/6$347
Tue 6/410:34 amSTL - YUL
2 stops12h 59mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/6$375
Thu 5/306:19 pmSTL - YUL
2 stops19h 01mMultiple Airlines
Wed 6/52:30 pmYUL - STL
3 stops27h 58mMultiple Airlines
Deal found 5/6$411
Tue 6/410:34 amSTL - YUL
3 stops26h 11mMultiple Airlines
Tue 6/116:50 amYUL - STL
3 stops31h 15mMultiple Airlines
Deal found 5/6$419
Tue 6/410:34 amSTL - YUL
3 stops26h 11mMultiple Airlines
Tue 6/114:40 pmYUL - STL
2 stops21h 25mMultiple Airlines
Deal found 5/6$420
Sat 6/299:50 amSTL - YUL
Nonstop2h 23mAir Canada
Mon 7/14:05 pmYUL - STL
1 stop4h 56mAir Canada
Deal found 5/5$429
Sat 6/296:30 amSTL - YUL
1 stop11h 23mAir Canada
Mon 7/14:05 pmYUL - STL
1 stop4h 56mAir Canada
Deal found 5/5$432
Wed 6/191:10 pmSTL - YUL
1 stop8h 55mDelta
Tue 6/257:00 amYUL - STL
1 stop12h 11mDelta
Deal found 5/6$447
Sat 6/296:05 amSTL - YUL
1 stop10h 37mWestJet
Mon 7/16:47 pmYUL - STL
1 stop15h 22mWestJet
Deal found 5/7$449

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 2,749,864 searches. Data last updated May 7, 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 6/410:34 amSTL - YUL
3 stops26h 11mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/6$347
Tue 6/410:34 amSTL - YUL
2 stops12h 59mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/6$375
Thu 5/306:19 pmSTL - YUL
2 stops19h 01mMultiple Airlines
Wed 6/52:30 pmYUL - STL
3 stops27h 58mMultiple Airlines
Deal found 5/6$411
Tue 6/410:34 amSTL - YUL
3 stops26h 11mMultiple Airlines
Tue 6/116:50 amYUL - STL
3 stops31h 15mMultiple Airlines
Deal found 5/6$419
Tue 6/410:34 amSTL - YUL
3 stops26h 11mMultiple Airlines
Tue 6/114:40 pmYUL - STL
2 stops21h 25mMultiple Airlines
Deal found 5/6$420
Sat 6/299:50 amSTL - YUL
Nonstop2h 23mAir Canada
Mon 7/14:05 pmYUL - STL
1 stop4h 56mAir Canada
Deal found 5/5$429
Sat 6/296:30 amSTL - YUL
1 stop11h 23mAir Canada
Mon 7/14:05 pmYUL - STL
1 stop4h 56mAir Canada
Deal found 5/5$432
Wed 6/191:10 pmSTL - YUL
1 stop8h 55mDelta
Wed 6/2610:00 amYUL - STL
1 stop9h 11mDelta
Deal found 5/7$447
Sat 6/296:05 amSTL - YUL
1 stop10h 37mWestJet
Mon 7/16:47 pmYUL - STL
1 stop15h 22mWestJet
Deal found 5/7$449

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 2,749,864 searches. Data last updated May 7, 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.
Sat 8/1712:00 pmSTL - YUL
Nonstop2h 23mUnited Airlines
Sun 8/257:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/6$450
Sat 8/1012:00 pmSTL - YUL
Nonstop2h 23mLufthansa
Sat 8/177:30 pmYUL - STL
Nonstop2h 35mLufthansa
Deal found 5/6$467
Sat 6/299:50 amSTL - YUL
Nonstop2h 23mAir Canada
Mon 7/17:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/5$503
Mon 9/212:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Wed 9/47:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/7$526
Mon 5/2011:00 amSTL - YUL
Nonstop2h 23mAir Canada
Thu 5/237:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/6$536
Mon 8/512:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Mon 8/127:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/6$582
Thu 8/2912:00 pmSTL - YUL
Nonstop2h 23mUnited Airlines
Thu 9/57:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/6$584
Wed 6/269:50 amSTL - YUL
Nonstop2h 23mUnited Airlines
Thu 7/47:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/6$602
Wed 9/2512:00 pmSTL - YUL
Nonstop2h 23mUnited Airlines
Thu 10/37:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/5$612

St. Louis to Montreal flights leaving soon

Find last-minute flight options from St. Louis to Montreal for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 7, 2024.
Users seeking a last-minute flight from St. Louis to Montreal should consider booking one of these fares. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 5/167:44 pmSTL - YUL
1 stop17h 36mMultiple Airlines
Sun 5/197:00 amYUL - STL
2 stops12h 40mMultiple Airlines
Deal found 5/7$500
Thu 5/167:44 pmSTL - YUL
1 stop17h 36mMultiple Airlines
Sun 5/196:45 amYUL - STL
1 stop12h 55mMultiple Airlines
Deal found 5/7$509
Mon 5/137:30 amSTL - YUL
3 stops29h 30mMultiple Airlines
Thu 5/167:00 amYUL - STL
2 stops12h 40mMultiple Airlines
Deal found 5/6$513
Thu 5/167:30 pmSTL - YUL
2 stops17h 30mMultiple Airlines
Sun 5/197:00 amYUL - STL
2 stops12h 40mMultiple Airlines
Deal found 5/7$539
Thu 5/167:30 pmSTL - YUL
3 stops28h 03mMultiple Airlines
Sun 5/197:00 amYUL - STL
2 stops12h 40mMultiple Airlines
Deal found 5/7$553
Mon 5/137:30 amSTL - YUL
3 stops29h 30mMultiple Airlines
Thu 5/162:45 pmYUL - STL
3 stops25h 45mMultiple Airlines
Deal found 5/6$597
Wed 5/156:00 amSTL - YUL
1 stop8h 14mDelta
Thu 5/306:10 amYUL - STL
1 stop9h 09mDelta
Deal found 5/6$630
Wed 5/158:27 amSTL - YUL
1 stop10h 00mUnited Airlines
Thu 5/307:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/6$632
Wed 5/158:05 amSTL - YUL
2 stops9h 59mUnited Airlines
Thu 5/306:15 amYUL - STL
1 stop6h 58mUnited Airlines
Deal found 5/6$657

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 2,749,864 searches. Data last updated May 7, 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.
Thu 5/307:44 pmSTL - YUL
1 stop17h 36mMultiple Airlines
Deal found 5/6$168
Thu 5/306:19 pmSTL - YUL
2 stops19h 01mMultiple Airlines
Deal found 5/6$176
Tue 5/2810:34 amSTL - YUL
2 stops12h 59mMultiple Airlines
Deal found 5/7$181
Sun 6/305:45 pmSTL - YUL
1 stop15h 56mSun Country Air
Deal found 5/6$182
Sat 5/2511:39 amSTL - YUL
3 stops26h 51mMultiple Airlines
Deal found 5/6$194
Fri 6/219:50 amSTL - YUL
Nonstop2h 23mAir Canada
Deal found 5/6$198
Tue 5/282:00 pmSTL - YUL
1 stop7h 39mAmerican Airlines
Deal found 5/7$206
Fri 7/511:25 amSTL - YUL
1 stop6h 28mAir Canada
Deal found 5/6$208
Mon 6/2411:00 amSTL - YUL
1 stop6h 18mAir Canada
Deal found 5/5$209

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 2,749,864 searches. Data last updated May 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$347 - $508

Route

Depart

Return

Price

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 6/4

3 stops26h 11m

Montreal Pierre Elliott Trudeau Intl

Tue 6/11

1 stop8h 33m

$347

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 6/4

2 stops12h 59m

Montreal Pierre Elliott Trudeau Intl

Tue 6/11

1 stop8h 33m

$375

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sat 6/29

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Mon 7/1

1 stop4h 56m

$429

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sat 6/29

1 stop11h 23m

Montreal Pierre Elliott Trudeau Intl

Mon 7/1

1 stop4h 56m

$432

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Wed 6/19

1 stop8h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 6/26

1 stop9h 11m

$447

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sat 8/17

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Sun 8/25

Nonstop2h 35m

$450

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sat 8/10

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Sat 8/17

Nonstop2h 35m

$467

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Wed 6/19

1 stop9h 27m

Montreal Pierre Elliott Trudeau Intl

Wed 6/26

1 stop5h 56m

$488

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sat 7/20

2 stops8h 31m

Montreal Pierre Elliott Trudeau Intl

Thu 7/25

1 stop17h 00m

$508

Flights are sorted by cheapest first

Deals found on 5/6

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 May 3, 2024.
The best time to book flights from St. Louis to Montreal is 52 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 May 5, 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 $191 while a round-trip flight costs $438. Price data was last updated on May 5, 2024.

Currently, February is the cheapest month in which you can book a flight from St. Louis to Montreal (average of $246). Flying from St. Louis to Montreal in July is currently the most expensive (average of $457). 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

$246

March

$313

April

$312

May

$345

June

$417

July

$457

August

$441

September

$389

October

$336

November

$299

December

$275

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 May 7, 2024.
Read through reviews of airlines operating flights from St. Louis to Montreal, such as Delta, 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
10,810 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,810 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

WestJet
7.6
Good
2,948 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
11,073 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,686 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Sun Country Air
7.3
Good
641 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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 $400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Montreal for under $400. The cheapest flight booked recently is on Multiple Airlines for just $347, but on average you can expect to pay $441.

  • Are there nonstop flights from St. Louis to Montreal for under $500 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Montreal under $500. A good price for a nonstop flight from St. Louis to Montreal is less than $626.

  • Are there last-minute flights available from St. Louis to Montreal for under $500?

    There are currently 17+ open flights from St. Louis to Montreal within the next 7 days for less than $500.

  • 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 $429. Other airlines that can offer you cheap pricing are Delta, from $447, and United Airlines, from $450. Air Canada is currently priced 16% 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 Sun Country Air, with whom users have recently found tickets for as low as $182. However, be on the lookout for offers from Air Canada 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 $274. While the most popular route (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) can be booked for $347 on average our data indicates $1,839 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 5/7.

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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.

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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 2,749,864 searches. Data last updated May 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$237Average$503FlexibilityNo cancel feeOn-time69%
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Air CanadaCheapest$258Average$606FlexibilityNo cancel feeOn-time67%
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American AirlinesCheapest$274Average$502FlexibilityNo cancel feeOn-time71%
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DeltaCheapest$383Average$599FlexibilityNo cancel feeOn-timeN/A
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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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Fly with Cheapflights

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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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