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Cheap flights from Quebec to St. Louis from C$ 239

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — STL
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Quebec to St. Louis

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

Round-trip from

C$ 384

One-way from

C$ 278
11/3-18/3
  • 11/3-18/3
  • 2 total stops
  • 34h 09m total
  • Quebec to St. Louis
Search Deals
23/2
  • 23/2
  • 3 total stops
  • 56h 57m total
  • Quebec to St. Louis
Search Deals

Find flight deals from Quebec to St. Louis

Cheapest flights from Quebec to St. Louis
Explore the most affordable flight options available from Quebec to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2025.

Tue 11/36:30 a.m.YUL - STL
1 stop11h 12mMultiple Airlines
Tue 18/35:38 p.m.STL - YUL
1 stop22h 57mMultiple Airlines
Deal found 20/1C$ 384
Thu 20/211:20 a.m.YUL - STL
1 stop10h 42mDelta
Thu 27/210:20 a.m.STL - YUL
1 stop9h 43mDelta
Deal found 21/1C$ 573
Tue 4/34:20 p.m.YOW - STL
3 stops44h 10mMultiple Airlines
Tue 11/35:38 p.m.STL - YOW
2 stops22h 32mMultiple Airlines
Deal found 21/1C$ 655
Thu 20/27:14 a.m.YUL - STL
1 stop11h 18mAmerican Airlines
Sat 22/26:00 a.m.STL - YUL
2 stops9h 55mAmerican Airlines
Deal found 21/1C$ 698
Mon 10/310:30 a.m.YQB - STL
1 stop5h 36mUnited Airlines
Sun 16/33:50 p.m.STL - YQB
1 stop6h 06mUnited Airlines
Deal found 20/1C$ 702
Sun 13/46:05 a.m.YUL - STL
1 stop5h 24mKLM
Wed 16/46:00 a.m.STL - YUL
1 stop14h 26mKLM
Deal found 21/1C$ 712
Thu 20/21:30 p.m.YUL - STL
2 stops9h 47mWestJet
Thu 27/26:06 a.m.STL - YUL
1 stop9h 13mWestJet
Deal found 21/1C$ 750
Sun 13/46:15 a.m.YUL - STL
1 stop7h 05mUnited Airlines
Wed 16/41:12 p.m.STL - YUL
2 stops17h 36mUnited Airlines
Deal found 21/1C$ 790
Mon 7/710:30 a.m.YUL - STL
1 stop5h 51mAir Canada
Sun 13/71:30 p.m.STL - YUL
Nonstop2h 30mAir Canada
Deal found 21/1C$ 859
Wed 9/46:05 a.m.YOW - STL
2 stops9h 37mUnited Airlines
Wed 16/49:39 a.m.STL - YOW
2 stops13h 14mUnited Airlines
Deal found 21/1C$ 865
Fri 7/39:35 p.m.YOW - STL
2 stops14h 24mWestJet
Mon 17/311:19 a.m.STL - YOW
2 stops36h 25mWestJet
Deal found 21/1C$ 1,009
Mon 10/32:15 p.m.YQB - STL
3 stops27h 27mMultiple Airlines
Sun 16/35:38 p.m.STL - YQB
3 stops42h 52mMultiple Airlines
Deal found 20/1C$ 1,058

Find flights from Quebec to St. Louis within your budget

Customize your flight search to find flights from Quebec to St. Louis 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 629,999 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 11/3

6:30 a.m.-4:42 p.m.

1 stop11h 12m

Lambert-St Louis

Tue 18/3

5:38 p.m.-5:35 p.m.

1 stop22h 57m

C$ 384

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 20/2

11:20 a.m.-9:02 p.m.

1 stop10h 42m

Lambert-St Louis

Thu 27/2

10:20 a.m.-9:03 p.m.

1 stop9h 43m

C$ 573

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 4/3

4:20 p.m.-11:30 a.m.

3 stops44h 10m

Lambert-St Louis

Tue 11/3

5:38 p.m.-5:10 p.m.

2 stops22h 32m

C$ 655

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Mon 10/3

10:30 a.m.-3:06 p.m.

1 stop5h 36m

Lambert-St Louis

Sun 16/3

3:50 p.m.-10:56 p.m.

1 stop6h 06m

C$ 702

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 20/2

1:30 p.m.-10:17 p.m.

2 stops9h 47m

Lambert-St Louis

Thu 27/2

6:06 a.m.-4:19 p.m.

1 stop9h 13m

C$ 750

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 23/2

8:35 a.m.-3:40 p.m.

2 stops8h 05m

Lambert-St Louis

Thu 27/2

6:30 a.m.-3:58 p.m.

2 stops8h 28m

C$ 784

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 29/5

6:10 p.m.-8:01 p.m.

Nonstop2h 51m

Lambert-St Louis

Mon 2/6

8:10 a.m.-1:55 p.m.

1 stop4h 45m

C$ 845

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 9/4

6:05 a.m.-2:42 p.m.

2 stops9h 37m

Lambert-St Louis

Wed 16/4

9:39 a.m.-11:53 p.m.

2 stops13h 14m

C$ 865

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 7/3

10:05 a.m.-3:06 p.m.

1 stop6h 01m

Lambert-St Louis

Mon 17/3

3:50 p.m.-11:47 p.m.

1 stop6h 57m

C$ 875

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 7/3

9:35 p.m.-10:59 a.m.

2 stops14h 24m

Lambert-St Louis

Mon 17/3

11:19 a.m.-12:44 a.m.

2 stops36h 25m

C$ 1,009

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/1

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

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

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

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

Currently, January is the cheapest month in which you can book a flight from Quebec to St. Louis (average of C$ 365). Flying from Quebec to St. Louis in September is currently the most expensive (average of C$ 491). 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 QC to STL?

Find hourly flight availability from Quebec to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 January 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Quebec to St. Louis as you normally would.

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 21 January 2025.
See what other customers who have flown with United Airlines, Air Canada and WestJet from Quebec to St. Louis have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

    Located just 20.4 km from the city centre, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Quebec.

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

    C$ 282 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and Delta, with prices starting from C$ 295 and C$ 400, respectively.

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

    Most travellers choose Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis, Ottawa - Lambert-St Louis or Québec City - Lambert-St Louis when deciding on the best route from Quebec to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Quebec to St. Louis 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 Quebec to St. Louis?

    Currently, January is the cheapest month in which you can book a flight from Quebec to St. Louis (average of C$ 365). Flying from Quebec to St. Louis in September is currently the most expensive (average of C$ 491). 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

Travelling to a place near Quebec?

Book flights to Quebec if you plan to visit one of these locations
St. Peters
Chesterfield

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Alternative routes for Quebec to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Quebec to St. Louis

Discover the top 3 airlines that operate flights from Quebec to St. Louis. 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 629,999 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 298AverageC$ 829FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 572AverageC$ 767FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 680AverageC$ 929FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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 Quebec to St. Louis?

Cheapflights makes it easy to find Quebec to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Quebec to St. Louis?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Quebec to St. Louis for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Quebec to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Quebec to St. Louis flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Quebec to St. Louis become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Louis from Quebec today and book when prices fit your budget.

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