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

C$ 352 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 United Airlines and Delta, with prices starting from C$ 368 and C$ 389, 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.

What are the cheapest flights from Quebec to St. Louis?

On average you can expect to pay C$ 636 for a flight from Quebec to St. Louis. The cheapest flight overall is C$ 609 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis) is currently priced at C$ 453.

What are the most popular airlines that fly from Quebec to St. Louis?

Consider Air Canada, United Airlines or WestJet when booking your flight. These represent the most popular airlines when flying from Quebec to St. Louis.

What is the cheapest month to fly from Quebec to St. Louis?

Flights from Quebec to St. Louis lean towards being more expensive in December. Prices are generally better when you fly from Quebec to St. Louis in July, with the cheapest ticket starting at C$ 490.

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.

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.

C$ 227+ Flights from Quebec to St. Louis

Cheap flight deals from Quebec to St. Louis

Round-trip from	C$ 428
One-way from	C$ 227
Popular in	December
Cheapest in	July
Average price	C$ 777
Good round-trip deal	C$ 636 or less

5/4-15/4
2 total stops
46h 41m total
Quebec to St. Louis

Search Deals

11/3
2 total stops
10h 57m total
Quebec to St. Louis

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (C$ 77 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Price to beat on a round-trip flight from Quebec to Lambert-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 20 February 2025.

Sat 5/43:55 p.m.YUL - STL

1 stop26h 57mMultiple Airlines

Tue 15/46:11 p.m.STL - YUL

1 stop19h 44mMultiple Airlines

Deal found 20/2C$ 428

Thu 20/39:15 a.m.YUL - STL

1 stop6h 51mAir Canada

Mon 24/33:50 p.m.STL - YUL

1 stop6h 58mAir Canada

Deal found 20/2C$ 584

Fri 14/34:50 p.m.YUL - STL

1 stop5h 50mDelta

Mon 17/36:35 p.m.STL - YUL

1 stop14h 52mDelta

Deal found 20/2C$ 629

Sat 5/412:30 p.m.YUL - STL

1 stop10h 42mAmerican Airlines

Tue 15/46:00 p.m.STL - YUL

1 stop16h 44mAmerican Airlines

Deal found 19/2C$ 632

Sat 5/46:00 a.m.YUL - STL

2 stops10h 47mUnited Airlines

Tue 15/46:30 a.m.STL - YUL

2 stops10h 20mUnited Airlines

Deal found 19/2C$ 653

Thu 20/31:30 p.m.YUL - STL

2 stops10h 56mWestJet

Mon 24/33:36 p.m.STL - YUL

1 stop17h 51mWestJet

Deal found 20/2C$ 716

Fri 21/311:25 a.m.YOW - STL

1 stop5h 06mAir Canada

Mon 24/311:05 a.m.STL - YOW

1 stop5h 01mAir Canada

Deal found 19/2C$ 724

Sat 5/44:20 p.m.YOW - STL

1 stop26h 32mMultiple Airlines

Sat 12/412:15 p.m.STL - YOW

3 stops30h 57mMultiple Airlines

Deal found 19/2C$ 777

Tue 13/56:05 a.m.YOW - STL

2 stops10h 42mUnited Airlines

Sat 17/53:43 p.m.STL - YOW

1 stop4h 52mUnited Airlines

Deal found 19/2C$ 862

Best flights from Quebec to St. Louis
Discover carefully curated flight deals from Quebec to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 February 2025.

Sat 5/43:55 p.m.YUL - STL

1 stop26h 57mMultiple Airlines

Tue 15/46:11 p.m.STL - YUL

1 stop19h 44mMultiple Airlines

Deal found 20/2C$ 428

Thu 20/39:15 a.m.YUL - STL

1 stop6h 51mAir Canada

Mon 24/33:50 p.m.STL - YUL

1 stop6h 58mAir Canada

Deal found 20/2C$ 584

Fri 14/34:50 p.m.YUL - STL

1 stop5h 50mDelta

Mon 17/36:35 p.m.STL - YUL

1 stop14h 52mDelta

Deal found 20/2C$ 629

Sat 5/412:30 p.m.YUL - STL

1 stop10h 42mAmerican Airlines

Tue 15/46:00 p.m.STL - YUL

1 stop16h 44mAmerican Airlines

Deal found 19/2C$ 632

Sat 5/46:00 a.m.YUL - STL

2 stops10h 47mUnited Airlines

Tue 15/46:30 a.m.STL - YUL

2 stops10h 20mUnited Airlines

Deal found 19/2C$ 653

Thu 20/31:30 p.m.YUL - STL

2 stops10h 56mWestJet

Mon 24/33:36 p.m.STL - YUL

1 stop17h 51mWestJet

Deal found 20/2C$ 716

Fri 21/311:25 a.m.YOW - STL

1 stop5h 06mAir Canada

Mon 24/311:05 a.m.STL - YOW

1 stop5h 01mAir Canada

Deal found 19/2C$ 724

Sat 5/44:20 p.m.YOW - STL

1 stop26h 32mMultiple Airlines

Sat 12/412:15 p.m.STL - YOW

3 stops30h 57mMultiple Airlines

Deal found 19/2C$ 777

Tue 13/56:05 a.m.YOW - STL

2 stops10h 42mUnited Airlines

Sat 17/53:43 p.m.STL - YOW

1 stop4h 52mUnited Airlines

Deal found 19/2C$ 862

Last-minute flights from Quebec to St. Louis
Discover last-minute flight deals from Quebec to St. Louis. Data last updated 20 February 2025 and is based on user searches.

Sun 2/35:15 p.m.YUL - STL

1 stop20h 13mWestJet

Fri 7/36:06 a.m.STL - YUL

1 stop13h 57mWestJet

Deal found 20/2C$ 1,004

Sun 2/39:15 a.m.YUL - STL

1 stop6h 51mAir Canada

Fri 7/37:00 a.m.STL - YUL

1 stop9h 08mAir Canada

Deal found 20/2C$ 1,053

Sun 2/32:20 p.m.YUL - STL

1 stop6h 13mAmerican Airlines

Fri 7/37:05 a.m.STL - YUL

2 stops8h 45mAmerican Airlines

Deal found 20/2C$ 1,134

Sun 2/310:50 a.m.YUL - STL

2 stops7h 55mAmerican Airlines

Fri 7/37:05 a.m.STL - YUL

2 stops8h 45mAmerican Airlines

Deal found 20/2C$ 1,134

Fri 14/34:50 p.m.YUL - STL

1 stop5h 50mDelta

Mon 17/36:35 p.m.STL - YUL

1 stop14h 52mDelta

Deal found 20/2C$ 629

Fri 14/36:30 p.m.YUL - STL

2 stops17h 32mUnited Airlines

Mon 17/310:03 a.m.STL - YUL

2 stops10h 39mUnited Airlines

Deal found 19/2C$ 935

Thu 20/39:15 a.m.YUL - STL

1 stop6h 51mAir Canada

Mon 24/33:50 p.m.STL - YUL

1 stop6h 58mAir Canada

Deal found 20/2C$ 584

Thu 20/36:05 a.m.YUL - STL

1 stop5h 29mMultiple Airlines

Thu 27/36:47 p.m.STL - YUL

1 stop19h 08mMultiple Airlines

Deal found 18/2C$ 589

Thu 20/31:30 p.m.YUL - STL

2 stops10h 56mWestJet

Mon 24/33:36 p.m.STL - YUL

1 stop17h 51mWestJet

Deal found 20/2C$ 716

Fri 21/311:25 a.m.YOW - STL

1 stop5h 06mAir Canada

Mon 24/311:05 a.m.STL - YOW

1 stop5h 01mAir Canada

Deal found 19/2C$ 724

Fri 21/36:00 a.m.YOW - STL

1 stop6h 22mUnited Airlines

Mon 24/310:03 a.m.STL - YOW

2 stops12h 51mUnited Airlines

Deal found 19/2C$ 864

One-way flights from Quebec to St. Louis
Search for one-way flight options from Quebec to St. Louis. Find affordable one-way fares based on user searches. Data last updated 20 February 2025.

Tue 11/36:45 a.m.YUL - STL

2 stops10h 57mMultiple Airlines

Deal found 18/2C$ 227

Wed 14/54:25 p.m.YOW - STL

1 stop8h 41mMultiple Airlines

Deal found 19/2C$ 321

Thu 1/56:10 p.m.YUL - STL

Nonstop2h 51mAir Canada

Deal found 20/2C$ 352

Sat 5/46:00 a.m.YUL - STL

2 stops9h 45mUnited Airlines

Deal found 19/2C$ 368

Sat 15/37:14 a.m.YUL - STL

1 stop9h 10mDelta

Deal found 20/2C$ 389

Sun 23/36:00 p.m.YUL - STL

1 stop6h 31mWestJet

Deal found 19/2C$ 457

Tue 11/310:54 a.m.YUL - STL

1 stop10h 00mAmerican Airlines

Deal found 18/2C$ 526

Find flights from Quebec to St. Louis within your budget

Fly from

Fly to

Route

Depart

Return

Price

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 5/4

3:55 p.m.-5:52 p.m.

1 stop26h 57m

Lambert-St Louis

Tue 15/4

6:11 p.m.-2:55 p.m.

1 stop19h 44m

C$ 428

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 20/3

9:15 a.m.-3:06 p.m.

1 stop6h 51m

Lambert-St Louis

Mon 24/3

3:50 p.m.-11:48 p.m.

1 stop6h 58m

C$ 584

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 14/3

4:50 p.m.-9:40 p.m.

1 stop5h 50m

Lambert-St Louis

Mon 17/3

6:35 p.m.-10:27 a.m.

1 stop14h 52m

C$ 629

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 5/4

12:30 p.m.-10:12 p.m.

1 stop10h 42m

Lambert-St Louis

Tue 15/4

6:00 p.m.-11:44 a.m.

1 stop16h 44m

C$ 632

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sat 5/4

6:00 a.m.-3:47 p.m.

2 stops10h 47m

Lambert-St Louis

Tue 15/4

6:30 a.m.-5:50 p.m.

2 stops10h 20m

C$ 653

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 20/3

1:30 p.m.-11:26 p.m.

2 stops10h 56m

Lambert-St Louis

Mon 24/3

3:36 p.m.-10:27 a.m.

1 stop17h 51m

C$ 716

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 21/3

11:25 a.m.-3:31 p.m.

1 stop5h 06m

Lambert-St Louis

Mon 24/3

11:05 a.m.-5:06 p.m.

1 stop5h 01m

C$ 724

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 5/4

4:20 p.m.-5:52 p.m.

1 stop26h 32m

Lambert-St Louis

Sat 12/4

12:15 p.m.-8:12 p.m.

3 stops30h 57m

C$ 777

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 13/5

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

2 stops10h 42m

Lambert-St Louis

Sat 17/5

3:43 p.m.-9:35 p.m.

1 stop4h 52m

C$ 862

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 11/3

6:45 a.m.-4:42 p.m.

2 stops10h 57m

C$ 227

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/2

Showing 1-10 of 16 results

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?

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

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

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

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

8,220 reviews

Check prices

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

8,220 reviews

Delta

8.0

Very good

8,220 reviews

Check prices

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

8,766 reviews

Delta

8.0

Very good

8,220 reviews

Check prices

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

8,220 reviews

Check prices

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

2,801 reviews

Delta

8.0

Very good

8,220 reviews

Check prices

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

8,748 reviews

Delta

8.0

Very good

8,220 reviews

Check prices

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

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$ 352 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 United Airlines and Delta, with prices starting from C$ 368 and C$ 389, 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.
What are the cheapest flights from Quebec to St. Louis?
On average you can expect to pay C$ 636 for a flight from Quebec to St. Louis. The cheapest flight overall is C$ 609 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis) is currently priced at C$ 453.
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

St. Peters

Chesterfield

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Quebec to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 556	AverageC$ 755	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 609	AverageC$ 769	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 694	AverageC$ 1,049	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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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Cheap flights from Quebec to St. Louis from C$ 227

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.

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 20 February 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Quebec to St. Louis

Cheapest flights from Quebec to St. LouisExplore 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 20 February 2025.

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 20 February 2025.

Find flights from Quebec to St. Louis within your budget

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.

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?

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 20 February 2025.

Rainfall in St. Louis by month

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

Temperature in St. Louis by month

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

Reviews of airlines servicing St. Louis

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.

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?

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

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

What are the cheapest flights from Quebec to St. Louis?

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

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

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

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

Travelling to a place near Quebec?

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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.

Top 3 airlines flying from Quebec to St. Louis

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How does Cheapflights help users find flights from Quebec to St. Louis?

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

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

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

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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 20 February 2025.