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$197+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YUL
May 5 — May 121
Mon 5/5
Mon 5/12
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 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$429
(Kiwi.com)

One-way from

$197
(American Airlines)

Popular in

February

Cheapest in

November

Average price

$578

Good round-trip deal

$888 or less

Good one-way deal

$487 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. 12% potential increase in price ($88 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 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 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Tue 5/275:45 pmSTL - YOW
1 stop22h 21mMultiple Airlines
Tue 6/37:00 amYOW - STL
2 stops17h 37mMultiple Airlines
Deal found 4/29$429
This Air Canada deal was found by Cheapflights users on 4/28. 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 6/81:30 pmSTL - YQB
1 stop5h 06mAir Canada
Thu 6/123:18 pmYQB - STL
1 stop8h 27mAir Canada
Deal found 4/28$438
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Fri 6/208:05 pmSTL - YQB
2 stops15h 20mAmerican Airlines
Wed 6/254:10 pmYQB - STL
1 stop8h 44mAmerican Airlines
Deal found 4/27$452
This Delta deal was found by Cheapflights users on 4/28. 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 5/296:45 pmSTL - YUL
1 stop25h 24mDelta
Mon 6/26:05 amYUL - STL
1 stop15h 43mDelta
Deal found 4/28$452
This Mytrip deal was found by Cheapflights users on 4/27. 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 6/126:12 pmSTL - YUL
3 stops29h 25mMultiple Airlines
Sun 6/156:45 amYUL - STL
2 stops28h 48mMultiple Airlines
Deal found 4/27$474
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/295:00 amSTL - YUL
1 stop4h 40mAir Canada
Mon 6/26:10 pmYUL - STL
Nonstop2h 48mAir Canada
Deal found 4/28$506
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 5/136:00 pmSTL - YUL
1 stop14h 50mAmerican Airlines
Tue 5/2010:44 amYUL - STL
1 stop9h 31mAmerican Airlines
Deal found 4/28$552
This United Airlines deal was found by Cheapflights users on 4/28. 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 8/158:15 amSTL - YUL
1 stop26h 25mUnited Airlines
Mon 8/184:40 pmYUL - STL
2 stops18h 22mUnited Airlines
Deal found 4/28$634
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/137:30 amSTL - YQB
1 stop7h 25mUnited Airlines
Fri 6/205:20 amYQB - STL
2 stops11h 10mUnited Airlines
Deal found 4/29$664
This Mytrip deal was found by Cheapflights users on 4/27. 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 6/206:12 pmSTL - YQB
2 stops27h 13mMultiple Airlines
Wed 6/254:35 pmYQB - STL
3 stops25h 29mMultiple Airlines
Deal found 4/27$717
This Justfly.com deal was found by Cheapflights users on 4/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/135:45 pmSTL - YUL
1 stop4h 23mWestJet
Sun 10/196:00 amYUL - STL
1 stop4h 35mWestJet
Deal found 4/28$721
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Thu 7/31:30 pmSTL - YOW
1 stop5h 45mAir Canada
Mon 7/72:25 pmYOW - STL
1 stop6h 35mAir Canada
Deal found 4/28$810

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 30, 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 5/27

5:45 pm-5:06 pm

1 stop22h 21m

Ottawa

Tue 6/3

7:00 am-11:37 pm

2 stops17h 37m

$429

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 6/8

1:30 pm-7:36 pm

1 stop5h 06m

Québec City

Thu 6/12

3:18 pm-10:45 pm

1 stop8h 27m

$438

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 6/20

8:05 pm-12:25 pm

2 stops15h 20m

Québec City

Wed 6/25

4:10 pm-11:54 pm

1 stop8h 44m

$452

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 5/29

6:45 pm-9:09 pm

1 stop25h 24m

Montreal Pierre Elliott Trudeau Intl

Mon 6/2

6:05 am-8:48 pm

1 stop15h 43m

$452

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 6/12

6:12 pm-12:37 am

3 stops29h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 6/15

6:45 am-10:33 am

2 stops28h 48m

$474

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 5/29

5:00 am-10:40 am

1 stop4h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 6/2

6:10 pm-7:58 pm

Nonstop2h 48m

$506

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 5/13

6:00 pm-9:50 am

1 stop14h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 5/20

10:44 am-7:15 pm

1 stop9h 31m

$552

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 8/15

8:15 am-11:40 am

1 stop26h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 8/18

4:40 pm-10:02 am

2 stops18h 22m

$634

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 6/13

7:30 am-3:55 pm

1 stop7h 25m

Québec City

Fri 6/20

5:20 am-3:30 pm

2 stops11h 10m

$664

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 6/20

6:12 pm-10:25 pm

2 stops27h 13m

Québec City

Wed 6/25

4:35 pm-5:04 pm

3 stops25h 29m

$717

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 24 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 30, 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 30, 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
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

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
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

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
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

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
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

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
2,823 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

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
9,242 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

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 American Airlines, which is currently one of the cheapest options available, starting at $197. Air Canada flights start at $204 while deals on Delta start at $244 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 $1,466 for a flight from St. Louis to Quebec. The cheapest flight overall is $199 while the most popular route, (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) is currently priced at $375.

  • 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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Springfield to Toronto Island flights
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Top 5 airlines flying from St. Louis to Quebec

Discover the top 5 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$213Average$644FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$246Average$625FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$708FlexibilityNo cancel feeOn-time71%
DeltaCheapest$472Average$660FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$577Average$645FlexibilityNo cancel feeOn-time60%

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