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Quebec

$188+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YUL
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$398
(Mytrip)

One-way from

$188
(Air Canada)

Popular in

June

Cheapest in

November

Average price

$566

Good round-trip deal

$999 or less

Good one-way deal

$663 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 ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 1, 2025.

This Mytrip deal was found by Cheapflights users on 3/31. 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 5/69:50 amSTL - YOW
3 stops13h 32mMultiple Airlines
Wed 5/711:20 amYOW - STL
2 stops22h 55mMultiple Airlines
Deal found 3/31$398
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Fri 4/2512:15 pmSTL - YUL
3 stops28h 47mMultiple Airlines
Wed 4/3010:10 amYUL - STL
3 stops32h 05mMultiple Airlines
Deal found 3/31$407
This Air Canada deal was found by Cheapflights users on 3/31. 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.
Sun 6/85:00 amSTL - YQB
1 stop8h 16mAir Canada
Thu 6/125:50 amYQB - STL
2 stops7h 46mAir Canada
Deal found 3/31$443
This Delta deal was found by Cheapflights users on 3/31. 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.
Tue 6/36:00 amSTL - YUL
1 stop14h 09mDelta
Wed 6/116:00 amYUL - STL
1 stop15h 53mDelta
Deal found 3/31$512
This Bravofly deal was found by Cheapflights users on 3/31. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:30 pmSTL - YUL
1 stop4h 51mAir Canada
Wed 5/286:10 pmYUL - STL
Nonstop2h 48mAir Canada
Deal found 3/31$517
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/307:33 amSTL - YUL
1 stop8h 12mAmerican Airlines
Mon 5/265:35 pmYUL - STL
1 stop18h 08mAmerican Airlines
Deal found 3/31$549
This American Airlines deal was found by Cheapflights users on 3/31. 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 7/216:10 amSTL - YQB
1 stop8h 20mAmerican Airlines
Sun 7/271:05 pmYQB - STL
2 stops19h 51mAmerican Airlines
Deal found 3/31$553
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/308:00 amSTL - YUL
1 stop5h 46mUnited Airlines
Mon 5/266:10 pmYUL - STL
Nonstop2h 48mUnited Airlines
Deal found 3/31$591
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 6/25:45 pmSTL - YUL
1 stop4h 31mWestJet
Sun 6/86:45 amYUL - STL
2 stops14h 52mWestJet
Deal found 3/31$667
This United deal was found by Cheapflights users on 3/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/25:00 amSTL - YQB
2 stops10h 00mMultiple Airlines
Wed 7/92:50 pmYQB - STL
1 stop6h 10mMultiple Airlines
Deal found 3/31$770
This Air Canada deal was found by Cheapflights users on 3/31. 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.
Tue 5/61:30 pmSTL - YOW
1 stop5h 47mAir Canada
Wed 5/72:35 pmYOW - STL
1 stop6h 23mAir Canada
Deal found 3/31$809
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 12/93:15 pmSTL - YOW
2 stops7h 28mUnited Airlines
Fri 12/1210:35 amYOW - STL
1 stop4h 43mUnited Airlines
Deal found 3/31$829

Cheapflights Fare Finder

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 April 1, 2025.
Use the filters below to find and compare flights from St. Louis to Quebec that are best for you.

Fly from

St. Louis

Fly to

Quebec

Route

Depart

Return

Price

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 5/6

9:50 am-12:22 am

3 stops13h 32m

Ottawa

Wed 5/7

11:20 am-9:15 am

2 stops22h 55m

$398

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 4/25

12:15 pm-6:02 pm

3 stops28h 47m

Montreal Pierre Elliott Trudeau Intl

Wed 4/30

10:10 am-5:15 pm

3 stops32h 05m

$407

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 6/8

5:00 am-2:16 pm

1 stop8h 16m

Québec City

Thu 6/12

5:50 am-12:36 pm

2 stops7h 46m

$443

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 6/3

6:00 am-9:09 pm

1 stop14h 09m

Montreal Pierre Elliott Trudeau Intl

Wed 6/11

6:00 am-8:53 pm

1 stop15h 53m

$512

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 4/30

3:30 pm-9:21 pm

1 stop4h 51m

Montreal Pierre Elliott Trudeau Intl

Wed 5/28

6:10 pm-7:58 pm

Nonstop2h 48m

$517

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 4/30

7:33 am-4:45 pm

1 stop8h 12m

Montreal Pierre Elliott Trudeau Intl

Mon 5/26

5:35 pm-10:43 am

1 stop18h 08m

$549

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 7/21

6:10 am-3:30 pm

1 stop8h 20m

Québec City

Sun 7/27

1:05 pm-7:56 am

2 stops19h 51m

$553

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 4/30

6:30 am-2:46 pm

1 stop7h 16m

Montreal Pierre Elliott Trudeau Intl

Sat 5/31

6:10 pm-7:58 pm

Nonstop2h 48m

$591

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 6/2

5:45 pm-11:16 pm

1 stop4h 31m

Montreal Pierre Elliott Trudeau Intl

Sun 6/8

6:45 am-8:37 pm

2 stops14h 52m

$667

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 7/2

5:00 am-4:00 pm

2 stops10h 00m

Québec City

Wed 7/9

2:50 pm-8:00 pm

1 stop6h 10m

$770

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 19 results
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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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Quebec

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 April 1, 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 April 1, 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
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
8,615 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
2,789 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
9,013 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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 Air Canada, which is currently one of the cheapest options available, starting at $188. United Airlines flights start at $194 while deals on American Airlines start at $197 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 $2,264 for a flight from St. Louis to Quebec. The cheapest flight overall is $254 while the most popular route, (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) is currently priced at $382.

  • 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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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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$213Average$635FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$246Average$588FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$708FlexibilityNo cancel feeOn-time71%
DeltaCheapest$497Average$660FlexibilityNo cancel feeOn-timeN/A
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