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Cheap flights from St. Louis (STL) to Montreal (YMQ) from $196

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 7/21. 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
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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The best prices from Lambert-St Louis to Montreal are usually found in February or January, booked 83 days in advance, depart on a Saturday or Thursday 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 May 30, 2024.

Popular in

August

Cheapest in

February

Round-trip from

$276

One-way from

$275
High demand for flights, 18% 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 43% 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 $392 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.

What is the cheapest time of day to fly from STL to YMQ?

A simple way to save on the total cost of your ticket is to fly from St. Louis to Montreal in the evening. If you’re flexible enough to do this you can expect to save up to 53% on your trip compared to booking a flight at noon.

Cheap United Airlines flights from St. Louis to Montreal

Explore cheap flight options specifically provided by United Airlines 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 2,784,634 searches. Data last updated May 30, 2024.
Consider these cheap United Airlines flights we've found departing from St. Louis to Montreal. Make sure to double check the flight details before booking.
Tue 7/2311:30 amSTL - YUL
Nonstop2h 23mUnited Airlines
Tue 7/235:40 pmYUL - STL
1 stop5h 57mUnited Airlines
Deal found 5/29$539
Sat 9/75:20 pmSTL - YUL
2 stops15h 51mUnited Airlines
Fri 9/135:40 pmYUL - STL
1 stop6h 27mUnited Airlines
Deal found 5/30$542
Sat 9/75:20 pmSTL - YUL
2 stops15h 51mUnited Airlines
Fri 9/136:30 pmYUL - STL
2 stops16h 37mUnited Airlines
Deal found 5/29$551
Thu 7/186:08 amSTL - YUL
1 stop6h 08mUnited Airlines
Sat 7/278:30 amYUL - STL
1 stop7h 06mUnited Airlines
Deal found 5/29$582
Wed 8/146:30 amSTL - YUL
2 stops7h 06mUnited Airlines
Fri 8/166:00 amYUL - STL
2 stops9h 18mUnited Airlines
Deal found 5/29$597
Sun 9/2912:00 pmSTL - YUL
Nonstop2h 23mUnited Airlines
Mon 10/77:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/28$612
Wed 7/36:08 amSTL - YUL
1 stop6h 08mUnited Airlines
Sun 7/76:00 amYUL - STL
1 stop5h 23mUnited Airlines
Deal found 5/30$706
Tue 6/46:08 amSTL - YUL
1 stop6h 08mUnited Airlines
Wed 6/57:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/29$828

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 2,784,634 searches. Data last updated May 30, 2024.
Some of the lowest-priced Air Canada 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.
Sat 9/712:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Sat 9/287:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/29$512
Sat 9/711:10 amSTL - YUL
1 stop5h 10mAir Canada
Thu 9/267:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/29$522
Mon 9/212:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Mon 9/239:10 amYUL - STL
1 stop7h 10mAir Canada
Deal found 5/29$523
Sat 7/2011:30 amSTL - YUL
Nonstop2h 23mAir Canada
Sat 7/278:30 amYUL - STL
1 stop8h 10mAir Canada
Deal found 5/29$527
Mon 7/2210:10 amSTL - YUL
1 stop6h 08mAir Canada
Sat 7/278:30 amYUL - STL
1 stop7h 06mAir Canada
Deal found 5/29$538
Thu 9/54:05 pmSTL - YUL
1 stop8h 41mAir Canada
Sat 9/287:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/29$546
Thu 8/84:05 pmSTL - YUL
1 stop8h 43mAir Canada
Mon 8/123:10 pmYUL - STL
1 stop5h 51mAir Canada
Deal found 5/28$557
Thu 7/1811:30 amSTL - YUL
Nonstop2h 23mAir Canada
Thu 7/2511:10 amYUL - STL
1 stop5h 11mAir Canada
Deal found 5/29$568
Sun 7/2110:10 amSTL - YUL
1 stop6h 08mAir Canada
Mon 7/228:10 amYUL - STL
1 stop8h 11mAir Canada
Deal found 5/29$602

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 2,784,634 searches. Prices were last updated on May 30, 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 6/113:23 pmSTL - YUL
3 stops25h 37mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/30$410
Sat 6/86:22 pmSTL - YUL
2 stops18h 58mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/29$416
Sat 6/811:34 amSTL - YUL
3 stops33h 16mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/29$428
Tue 6/1111:57 amSTL - YUL
2 stops19h 18mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/30$438
Thu 6/2712:15 pmSTL - YUL
3 stops21h 26mMultiple Airlines
Sun 6/3012:45 pmYUL - STL
3 stops23h 45mMultiple Airlines
Deal found 5/30$458
Tue 6/1111:57 amSTL - YUL
2 stops19h 18mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/29$460
Tue 6/113:23 pmSTL - YUL
3 stops25h 37mMultiple Airlines
Tue 6/186:50 amYUL - STL
3 stops39h 16mMultiple Airlines
Deal found 5/30$475
Fri 6/2812:15 pmSTL - YUL
3 stops29h 30mMultiple Airlines
Fri 7/57:00 amYUL - STL
3 stops29h 45mMultiple Airlines
Deal found 5/29$483
Tue 6/117:29 pmSTL - YUL
2 stops14h 59mMultiple Airlines
Sat 6/156:50 amYUL - STL
1 stop11h 38mMultiple Airlines
Deal found 5/29$492

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 2,784,634 searches. Data last updated May 30, 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 6/113:23 pmSTL - YUL
3 stops25h 37mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/30$410
Sat 6/86:22 pmSTL - YUL
2 stops18h 58mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/29$416
Sat 6/811:34 amSTL - YUL
3 stops33h 16mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/29$428
Wed 7/1012:15 pmSTL - YUL
3 stops35h 18mMultiple Airlines
Tue 7/1611:05 amYUL - STL
3 stops25h 25mMultiple Airlines
Deal found 5/30$434
Tue 6/1111:57 amSTL - YUL
2 stops19h 18mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/30$438
Tue 7/2310:11 amSTL - YUL
2 stops13h 22mMultiple Airlines
Sat 7/279:15 amYUL - STL
1 stop12h 35mMultiple Airlines
Deal found 5/29$439
Sat 9/146:24 pmSTL - YUL
3 stops20h 06mMultiple Airlines
Sat 9/216:50 amYUL - STL
1 stop11h 40mMultiple Airlines
Deal found 5/30$442
Sat 9/146:24 pmSTL - YUL
2 stops18h 56mMultiple Airlines
Sat 9/216:50 amYUL - STL
1 stop11h 40mMultiple Airlines
Deal found 5/30$444
Thu 6/2712:15 pmSTL - YUL
3 stops21h 26mMultiple Airlines
Sun 6/3012:45 pmYUL - STL
3 stops23h 45mMultiple Airlines
Deal found 5/30$458

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 2,784,634 searches. Data last updated May 30, 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 9/712:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Sat 9/287:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/29$512
Mon 9/912:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Tue 9/177:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/29$557
Sun 10/1312:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Sat 10/197:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/29$582
Sun 9/2912:00 pmSTL - YUL
Nonstop2h 23mUnited Airlines
Mon 10/77:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/28$612
Thu 8/812:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Mon 8/127:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/28$657
Thu 8/812:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Mon 8/127:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/30$658
Sun 7/2111:30 amSTL - YUL
Nonstop2h 23mAir Canada
Wed 7/247:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/29$696
Wed 9/412:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Wed 9/257:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/29$699
Thu 10/1012:00 pmSTL - YUL
Nonstop2h 23mMultiple Airlines
Mon 10/147:30 pmYUL - STL
Nonstop2h 35mMultiple Airlines
Deal found 5/28$724

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 2,784,634 searches. Data last updated May 30, 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.
Sat 6/86:22 pmSTL - YUL
2 stops18h 58mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/29$416
Sat 6/811:34 amSTL - YUL
3 stops33h 16mMultiple Airlines
Tue 6/116:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/29$428
Fri 6/77:44 pmSTL - YUL
1 stop17h 36mMultiple Airlines
Sun 6/166:45 amYUL - STL
1 stop12h 20mMultiple Airlines
Deal found 5/30$516
Sat 6/86:22 pmSTL - YUL
2 stops18h 58mMultiple Airlines
Tue 6/116:50 amYUL - STL
3 stops33h 00mMultiple Airlines
Deal found 5/29$566
Sat 6/811:34 amSTL - YUL
3 stops33h 16mMultiple Airlines
Tue 6/116:50 amYUL - STL
3 stops33h 00mMultiple Airlines
Deal found 5/29$577
Fri 6/77:45 amSTL - YUL
3 stops29h 35mMultiple Airlines
Sun 6/166:45 amYUL - STL
1 stop12h 20mMultiple Airlines
Deal found 5/30$621
Fri 6/73:07 pmSTL - YUL
2 stops24h 44mMultiple Airlines
Sun 6/166:45 amYUL - STL
1 stop12h 20mMultiple Airlines
Deal found 5/30$623
Fri 6/77:45 amSTL - YUL
3 stops29h 35mMultiple Airlines
Sun 6/167:00 amYUL - STL
2 stops12h 05mMultiple Airlines
Deal found 5/30$645
Tue 6/410:45 amSTL - YUL
1 stop9h 30mDelta
Thu 6/66:10 amYUL - STL
1 stop9h 09mDelta
Deal found 5/29$677

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 2,784,634 searches. Data last updated May 30, 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.
Sun 7/216:19 pmSTL - YUL
1 stop19h 41mMultiple Airlines
Deal found 5/29$196
Tue 7/2310:11 amSTL - YUL
2 stops13h 22mMultiple Airlines
Deal found 5/29$198
Wed 7/1012:15 pmSTL - YUL
3 stops33h 35mMultiple Airlines
Deal found 5/30$202
Wed 7/107:33 pmSTL - YUL
1 stop17h 47mMultiple Airlines
Deal found 5/30$207
Tue 7/2312:59 pmSTL - YUL
1 stop9h 11mDelta
Deal found 5/29$212
Mon 7/227:10 pmSTL - YUL
1 stop12h 57mDelta
Deal found 5/29$227
Sun 7/2111:30 amSTL - YUL
Nonstop2h 23mUnited Airlines
Deal found 5/29$230
Sat 7/207:33 pmSTL - YUL
1 stop17h 47mMultiple Airlines
Deal found 5/29$232
Wed 7/106:10 amSTL - YUL
2 stops9h 30mAmerican Airlines
Deal found 5/30$235

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$410 - $623

Route

Depart

Return

Price

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 6/11

3 stops25h 37m

Montreal Pierre Elliott Trudeau Intl

Tue 6/18

1 stop8h 33m

$410

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Wed 7/10

3 stops35h 18m

Montreal Pierre Elliott Trudeau Intl

Tue 7/16

3 stops25h 25m

$434

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 6/11

2 stops19h 18m

Montreal Pierre Elliott Trudeau Intl

Tue 6/18

1 stop8h 33m

$438

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 9/3

1 stop16h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 9/28

1 stop11h 55m

$483

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Mon 9/9

1 stop8h 32m

Montreal Pierre Elliott Trudeau Intl

Tue 9/17

1 stop8h 50m

$486

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sat 9/7

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Sat 9/28

Nonstop2h 35m

$512

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Fri 6/21

1 stop16h 47m

Montreal Pierre Elliott Trudeau Intl

Thu 6/27

1 stop10h 30m

$530

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 7/23

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Tue 7/23

1 stop5h 57m

$539

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Thu 7/4

1 stop6h 20m

Montreal Pierre Elliott Trudeau Intl

Sun 7/7

1 stop4h 08m

$623

Flights are sorted by cheapest first

Deals found on 5/30

How far ahead should I 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 24, 2024.
The best time to book flights from St. Louis to Montreal is 83 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

What is the cheapest day 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 26, 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

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.
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.

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 30, 2024.
Read through reviews of airlines operating flights from St. Louis to Montreal, such as United Airlines, Air Canada and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

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
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

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.

KLM
7.9
Good
1,520 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

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
7.5
Good
2,869 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

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
10,777 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

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
14,284 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

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 5 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 $410, but on average you can expect to pay $469.

  • 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 $803.

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

    There are currently 20+ 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 $483. Another airline that can offer you cheap pricing is Air Canada. Delta is currently priced 6% 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 Delta, with whom users have recently found tickets for as low as $212. However, be on the lookout for offers from United Airlines 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 reliable airlines from St. Louis to Montreal?

    Consider Air Canada (64%), Jazz (64%) or United Airlines (64%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Montreal.

  • 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 $416 on average our data indicates $777 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 5/30.

  • 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 is the cheapest month to book a flight from St. Louis to Montreal?

    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 $444). 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.

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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 5 airlines flying from St. Louis to Montreal

Discover the top 5 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$237Average$503FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$267Average$562FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$274Average$497FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$383Average$597FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapest$501Average$645FlexibilityNo cancel feeOn-time60%
Search WestJet 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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Hourly flight availability from St. Louis to Montreal

Find hourly flight availability from St. Louis to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 30, 2024.
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
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Fly with Cheapflights

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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