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$192+ Cheap flights from St. Louis (STL) to Quebec

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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YUL
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap flight deals from St. Louis to Quebec

Keep the following information in mind while searching for St. Louis to Quebec flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$223
(Mytrip)

One-way from

$192
(Delta)

Popular in

June

Cheapest in

November

Average price

$752

Good round-trip deal

$979 or less

Good one-way deal

$432 or less
Provider with most accurate pricing for Lambert-St Louis-Montreal (YMQ) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Montreal (YMQ) flights.
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From Lambert-St Louis to Quebec
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One-way flight from Lambert-St Louis to Quebec
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Highest demand for flights based on searches. 3% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Quebec.
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Price to beat on a one-way flight from Lambert-St Louis to Quebec.
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Find flight deals from St. Louis to Quebec

Cheapest flights from St. Louis to Quebec
Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This Mytrip deal was found by Cheapflights users on 2/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/36:47 pmSTL - YUL
1 stop19h 08mMultiple Airlines
Mon 4/73:55 pmYUL - STL
1 stop26h 57mMultiple Airlines
Deal found 2/21$223
This Mytrip deal was found by Cheapflights users on 2/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/86:47 pmSTL - YQB
2 stops23h 34mMultiple Airlines
Tue 4/156:00 amYQB - STL
2 stops12h 16mMultiple Airlines
Deal found 2/22$398
This Flightnetwork deal was found by Cheapflights users on 2/22. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/810:40 amSTL - YQB
2 stops7h 41mAir Canada
Tue 4/1510:30 amYQB - STL
1 stop5h 19mAir Canada
Deal found 2/22$415
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Mon 4/76:38 pmSTL - YOW
2 stops12h 42mMultiple Airlines
Mon 4/149:25 amYOW - STL
1 stop15h 21mMultiple Airlines
Deal found 2/21$438
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Mon 4/76:00 pmSTL - YUL
1 stop16h 44mAmerican Airlines
Mon 4/1412:30 pmYUL - STL
1 stop12h 03mAmerican Airlines
Deal found 2/21$476
This Delta deal was found by Cheapflights users on 2/20. 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.
Thu 4/241:41 pmSTL - YUL
1 stop8h 47mDelta
Wed 4/306:00 amYUL - STL
1 stop9h 46mDelta
Deal found 2/20$524
This United Airlines deal was found by Cheapflights users on 2/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/63:40 pmSTL - YQB
2 stops16h 45mUnited Airlines
Sun 4/1310:30 amYQB - STL
1 stop5h 19mUnited Airlines
Deal found 2/22$533
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Fri 5/25:29 pmSTL - YUL
1 stop15h 59mUnited Airlines
Sun 5/46:40 pmYUL - STL
1 stop22h 07mUnited Airlines
Deal found 2/21$545
This Air Canada deal was found by Cheapflights users on 2/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/231:30 pmSTL - YUL
Nonstop2h 29mAir Canada
Mon 5/261:10 pmYUL - STL
1 stop7h 33mAir Canada
Deal found 2/21$583
This Kiwi.com deal was found by Cheapflights users on 2/21. 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 5/224:00 pmSTL - YUL
2 stops7h 37mWestJet
Tue 5/2712:45 pmYUL - STL
1 stop6h 16mWestJet
Deal found 2/21$653
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Mon 5/197:30 pmSTL - YQB
1 stop17h 00mAmerican Airlines
Mon 5/262:15 pmYQB - STL
1 stop20h 34mAmerican Airlines
Deal found 2/21$760
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Mon 4/79:39 amSTL - YOW
1 stop10h 56mUnited Airlines
Mon 4/146:33 amYOW - STL
1 stop10h 14mUnited Airlines
Deal found 2/21$777

Find flights from St. Louis to Quebec within your budget

Customize your flight search to find flights from St. Louis to Quebec that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.

Fly from

St. Louis

Fly to

Quebec

Route

Depart

Return

Price

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 4/3

6:47 pm-2:55 pm

1 stop19h 08m

Montreal Pierre Elliott Trudeau Intl

Mon 4/7

3:55 pm-5:52 pm

1 stop26h 57m

$223

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Tue 4/8

6:47 pm-7:21 pm

2 stops23h 34m

Québec City

Tue 4/15

6:00 am-5:16 pm

2 stops12h 16m

$398

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Tue 4/8

10:40 am-7:21 pm

2 stops7h 41m

Québec City

Tue 4/15

10:30 am-2:49 pm

1 stop5h 19m

$415

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 4/7

6:38 pm-8:20 am

2 stops12h 42m

Ottawa

Mon 4/14

9:25 am-11:46 pm

1 stop15h 21m

$438

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 4/7

6:00 pm-11:44 am

1 stop16h 44m

Montreal Pierre Elliott Trudeau Intl

Mon 4/14

12:30 pm-11:33 pm

1 stop12h 03m

$476

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 4/24

1:41 pm-11:28 pm

1 stop8h 47m

Montreal Pierre Elliott Trudeau Intl

Wed 4/30

6:00 am-2:46 pm

1 stop9h 46m

$524

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 4/6

3:40 pm-9:25 am

2 stops16h 45m

Québec City

Sun 4/13

10:30 am-2:49 pm

1 stop5h 19m

$533

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 5/2

5:29 pm-10:28 am

1 stop15h 59m

Montreal Pierre Elliott Trudeau Intl

Sun 5/4

6:40 pm-3:47 pm

1 stop22h 07m

$545

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 5/23

1:30 pm-4:59 pm

Nonstop2h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 5/26

1:10 pm-7:43 pm

1 stop7h 33m

$583

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 5/22

4:00 pm-12:37 am

2 stops7h 37m

Montreal Pierre Elliott Trudeau Intl

Tue 5/27

12:45 pm-6:01 pm

1 stop6h 16m

$653

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 19 results
1
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Best time to book a flight from St. Louis to Quebec

Have a flexible travel schedule? Discover the best time to fly to Quebec 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.

Travel insights for flights from St. Louis to Quebec

Get recent, data-driven insights about flights from St. Louis to Quebec including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Quebec?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Quebec (average of $270). Flying from St. Louis to Quebec in July is currently the most expensive (average of $409). 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.

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

Find hourly flight availability from St. Louis to Quebec. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

When flying from St. Louis to Quebec, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Quebec by month

Plan your trip to Quebec by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Quebec ranges from 2.5 - 4.4 inches per month. August is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Quebec when rainfall is around 2.5 in.

Temperature in Quebec by month

Plan your trip to Quebec by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Quebec, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing Quebec

Get insights into the airlines that provide service to Quebec. 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 Quebec. Reviews last updated February 22, 2025.
Read through reviews of airlines operating flights from St. Louis to Quebec, such as Delta, United Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,203 reviews

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,203 reviews
Delta
8.0
Very good
8,203 reviews

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,754 reviews
Delta
8.0
Very good
8,203 reviews

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,203 reviews

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet
7.2
Good
2,800 reviews
Delta
8.0
Very good
8,203 reviews

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada
7.0
Good
8,758 reviews
Delta
8.0
Very good
8,203 reviews

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Quebec. 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 Quebec?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Quebec.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $192. American Airlines flights start at $252 while deals on United Airlines start at $259 one-way.

  • What are the most popular routes from St. Louis to Quebec?

    The most popular flight routes from St. Louis to Quebec are Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl, Lambert-St Louis - Québec City and Lambert-St Louis - Ottawa.

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

    On average you can expect to pay $1,093 for a flight from St. Louis to Quebec. The cheapest flight overall is $364 while the most popular route, (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) is currently priced at $232.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Quebec (average of $270). Flying from St. Louis to Quebec in July is currently the most expensive (average of $409). 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.

See more FAQs

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Alternative routes for St. Louis to Quebec

See prices for flight routes from nearby airports that may be better suited for you.
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St. Louis to Edmonton flights
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Top 4 airlines flying from St. Louis to Quebec

Discover the top 4 airlines that operate flights from St. Louis to Quebec. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$249Average$648FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$259Average$629FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$686FlexibilityNo cancel feeOn-time71%
DeltaCheapest$472Average$660FlexibilityNo cancel feeOn-timeN/A
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