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$174+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YUL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from St. Louis to Quebec

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Quebec (CAQC). 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 January 21, 2025.

Round-trip from

$428
(United Airlines)

One-way from

$174
(Kiwi.com)

Good round-trip deal

$1,131 or less

Good one-way deal

$701 or less
From Lambert-St Louis to Quebec
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One-way flight from Lambert-St Louis to Quebec
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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 January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/21. 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.
Thu 2/203:50 pmSTL - YQB
1 stop6h 06mUnited Airlines
Thu 2/2710:30 amYQB - STL
1 stop5h 36mUnited Airlines
Deal found 1/21$428
This Air Canada deal was found by Cheapflights users on 1/21. 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.
Sat 2/83:50 pmSTL - YQB
1 stop6h 06mAir Canada
Sun 2/166:45 amYQB - STL
2 stops9h 21mAir Canada
Deal found 1/21$433
This Mytrip deal was found by Cheapflights users on 1/21. 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 2/274:00 pmSTL - YOW
2 stops22h 12mMultiple Airlines
Wed 3/58:15 pmYOW - STL
2 stops21h 27mMultiple Airlines
Deal found 1/21$442
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/145:15 pmSTL - YUL
3 stops24h 00mMultiple Airlines
Sun 2/166:50 amYUL - STL
3 stops29h 40mMultiple Airlines
Deal found 1/20$465
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/56:06 amSTL - YUL
1 stop9h 13mDelta
Wed 3/126:00 amYUL - STL
1 stop9h 49mDelta
Deal found 1/21$479
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Wed 2/194:58 pmSTL - YUL
1 stop16h 07mAmerican Airlines
Wed 2/265:35 pmYUL - STL
1 stop18h 59mAmerican Airlines
Deal found 1/21$521
This Priceline deal was found by Cheapflights users on 1/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/145:50 pmSTL - YUL
1 stop4h 32mWestJet
Sun 2/166:00 amYUL - STL
1 stop7h 28mWestJet
Deal found 1/20$613
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Thu 2/277:00 amSTL - YOW
1 stop8h 16mUnited Airlines
Wed 3/55:50 pmYOW - STL
1 stop18h 32mUnited Airlines
Deal found 1/21$614
This Flysmarter deal was found by Cheapflights users on 1/21. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/277:00 amSTL - YOW
1 stop8h 16mAir Canada
Wed 3/57:30 pmYOW - STL
2 stops16h 52mAir Canada
Deal found 1/21$625
This Air Canada deal was found by Cheapflights users on 1/21. 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.
Wed 3/193:50 pmSTL - YUL
1 stop6h 58mAir Canada
Sat 3/228:50 amYUL - STL
2 stops7h 41mAir Canada
Deal found 1/21$740
This United deal was found by Cheapflights users on 1/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:05 pmSTL - YQB
1 stop4h 55mMultiple Airlines
Sun 10/1211:20 amYQB - STL
1 stop4h 56mMultiple Airlines
Deal found 1/20$757
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/176:15 pmSTL - YQB
2 stops17h 17mAmerican Airlines
Tue 7/292:30 pmYQB - STL
2 stops18h 43mAmerican Airlines
Deal found 1/20$774

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 2/20

3:50 pm-10:56 pm

1 stop6h 06m

Québec City

Thu 2/27

10:30 am-3:06 pm

1 stop5h 36m

$428

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 2/8

3:50 pm-10:56 pm

1 stop6h 06m

Québec City

Sun 2/16

6:45 am-3:06 pm

2 stops9h 21m

$433

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 2/27

4:00 pm-3:12 pm

2 stops22h 12m

Ottawa

Wed 3/5

8:15 pm-4:42 pm

2 stops21h 27m

$442

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 2/14

5:15 pm-6:15 pm

3 stops24h 00m

Montreal Pierre Elliott Trudeau Intl

Sun 2/16

6:50 am-11:30 am

3 stops29h 40m

$465

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 3/5

6:06 am-4:19 pm

1 stop9h 13m

Montreal Pierre Elliott Trudeau Intl

Wed 3/12

6:00 am-2:49 pm

1 stop9h 49m

$479

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 2/19

4:58 pm-10:05 am

1 stop16h 07m

Montreal Pierre Elliott Trudeau Intl

Wed 2/26

5:35 pm-11:34 am

1 stop18h 59m

$521

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 2/14

5:50 pm-11:22 pm

1 stop4h 32m

Montreal Pierre Elliott Trudeau Intl

Sun 2/16

6:00 am-12:28 pm

1 stop7h 28m

$613

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 2/27

7:00 am-4:16 pm

1 stop8h 16m

Ottawa

Wed 3/5

5:50 pm-11:22 am

1 stop18h 32m

$614

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 2/27

7:00 am-4:16 pm

1 stop8h 16m

Ottawa

Wed 3/5

7:30 pm-11:22 am

2 stops16h 52m

$625

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 3/19

3:50 pm-11:48 pm

1 stop6h 58m

Montreal Pierre Elliott Trudeau Intl

Sat 3/22

8:50 am-3:31 pm

2 stops7h 41m

$740

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 23 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.

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 January 21, 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 January 21, 2025.
Read through reviews of airlines operating flights from St. Louis to Quebec, such as Air Canada, United Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

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
8,521 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

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

WestJet
7.2
Good
2,829 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

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

Air Canada
7.0
Good
8,635 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.9

Comfort

8.0

Reviews

1 / 10

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 United Airlines, which is currently one of the cheapest options available, starting at $229. American Airlines flights start at $293 while deals on Air Canada start at $353 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 $1,433 for a flight from St. Louis to Quebec. The cheapest flight overall is $383 while the most popular route, (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) is currently priced at $465.

  • 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$249Average$646FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$261Average$639FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$677FlexibilityNo cancel feeOn-time71%
DeltaCheapest$383Average$574FlexibilityNo cancel feeOn-timeN/A
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