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Cheap flights from Quebec to St. Louis from C$ 248

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 24/4. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — STL
6 Apr — 13 Apr1
1 adult

Cheap flight deals from Quebec to St. Louis

Keep the following information in mind while searching for Quebec to St. Louis flight deals. Data was last updated 1 April 2025.

Round-trip from

C$ 592

One-way from

C$ 248

Popular in

December

Cheapest in

July

Average price

C$ 688
1/5-7/5
  • 1/5-7/5
  • 2 total stops
  • 37h 56m total
  • Quebec to St. Louis
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24/4
  • 24/4
  • 1 total stop
  • 11h 45m total
  • Quebec to St. Louis
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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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 1 April 2025.

Thu 1/56:45 a.m.YUL - STL
1 stop18h 21mMultiple Airlines
Wed 7/55:45 p.m.STL - YUL
1 stop19h 35mMultiple Airlines
Deal found 31/3C$ 592
Tue 15/49:20 a.m.YOW - STL
1 stop8h 55mMultiple Airlines
Thu 8/510:10 a.m.STL - YOW
2 stops13h 12mMultiple Airlines
Deal found 1/4C$ 596
Thu 1/56:10 p.m.YUL - STL
Nonstop2h 48mAir Canada
Thu 8/51:30 p.m.STL - YUL
Nonstop2h 30mAir Canada
Deal found 31/3C$ 642
Wed 7/55:05 p.m.YUL - STL
1 stop4h 44mDelta
Wed 14/52:15 p.m.STL - YUL
1 stop8h 01mDelta
Deal found 1/4C$ 655
Thu 1/56:10 p.m.YUL - STL
Nonstop2h 48mUnited Airlines
Thu 8/58:25 a.m.STL - YUL
1 stop7h 50mUnited Airlines
Deal found 31/3C$ 658
Fri 16/55:20 a.m.YQB - STL
2 stops16h 41mUnited Airlines
Fri 23/57:30 a.m.STL - YQB
1 stop13h 35mUnited Airlines
Deal found 31/3C$ 727
Fri 16/55:20 a.m.YQB - STL
1 stop15h 23mAir Canada
Fri 23/57:30 a.m.STL - YQB
1 stop13h 35mAir Canada
Deal found 31/3C$ 737
Tue 15/710:30 a.m.YUL - STL
1 stop11h 35mAmerican Airlines
Wed 30/76:03 a.m.STL - YUL
1 stop9h 42mAmerican Airlines
Deal found 31/3C$ 752
Sun 28/96:15 p.m.YUL - STL
1 stop6h 24mWestJet
Mon 6/103:30 p.m.STL - YUL
1 stop6h 54mWestJet
Deal found 1/4C$ 790
Thu 8/56:05 a.m.YOW - STL
2 stops10h 42mUnited Airlines
Sun 11/56:30 a.m.STL - YOW
2 stops6h 57mUnited Airlines
Deal found 31/3C$ 874
Wed 7/52:35 p.m.YOW - STL
1 stop6h 23mAir Canada
Mon 12/51:30 p.m.STL - YOW
1 stop5h 47mAir Canada
Deal found 31/3C$ 885
Fri 9/512:20 p.m.YOW - STL
2 stops12h 06mDelta
Mon 12/53:40 p.m.STL - YOW
2 stops7h 42mDelta
Deal found 31/3C$ 895

Cheapflights Fare Finder

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

Fly from

Quebec

Fly to

St. Louis

Route

Depart

Return

Price

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 1/5

6:45 a.m.-12:06 a.m.

1 stop18h 21m

Lambert-St Louis

Wed 7/5

5:45 p.m.-2:20 p.m.

1 stop19h 35m

C$ 592

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 15/4

9:20 a.m.-5:15 p.m.

1 stop8h 55m

Lambert-St Louis

Thu 8/5

10:10 a.m.-12:22 a.m.

2 stops13h 12m

C$ 596

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 1/5

6:10 p.m.-7:58 p.m.

Nonstop2h 48m

Lambert-St Louis

Thu 8/5

1:30 p.m.-5:00 p.m.

Nonstop2h 30m

C$ 642

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 7/5

5:05 p.m.-8:49 p.m.

1 stop4h 44m

Lambert-St Louis

Wed 14/5

2:15 p.m.-11:16 p.m.

1 stop8h 01m

C$ 655

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 1/5

6:10 p.m.-7:58 p.m.

Nonstop2h 48m

Lambert-St Louis

Thu 8/5

8:25 a.m.-5:15 p.m.

1 stop7h 50m

C$ 658

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 16/5

5:20 a.m.-9:01 p.m.

2 stops16h 41m

Lambert-St Louis

Fri 23/5

7:30 a.m.-10:05 p.m.

1 stop13h 35m

C$ 727

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 16/5

5:20 a.m.-7:43 p.m.

1 stop15h 23m

Lambert-St Louis

Fri 23/5

7:30 a.m.-10:05 p.m.

1 stop13h 35m

C$ 737

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 15/7

10:30 a.m.-9:05 p.m.

1 stop11h 35m

Lambert-St Louis

Wed 30/7

6:03 a.m.-4:45 p.m.

1 stop9h 42m

C$ 752

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 28/9

6:15 p.m.-11:39 p.m.

1 stop6h 24m

Lambert-St Louis

Mon 6/10

3:30 p.m.-11:24 p.m.

1 stop6h 54m

C$ 790

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 8/5

6:05 a.m.-3:47 p.m.

2 stops10h 42m

Lambert-St Louis

Sun 11/5

6:30 a.m.-2:27 p.m.

2 stops6h 57m

C$ 874

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/3

Showing 1-10 of 24 results
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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.

Cheapflights Insights

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

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 1 April 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 1 April 2025.
See what other customers who have flown with Delta, United Airlines and American Airlines 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
7,898 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,898 reviews
Delta
8.0
Very good
7,898 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,615 reviews
Delta
8.0
Very good
7,898 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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
7,898 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,789 reviews
Delta
8.0
Very good
7,898 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,022 reviews
Delta
8.0
Very good
7,898 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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$ 366 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from C$ 369 and C$ 373, 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 1 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 537AverageC$ 696FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 616AverageC$ 777FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 701AverageC$ 1,028FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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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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