What is the cheapest airline that flies from Quebec to Lambert-St Louis?

United Airlines, American Airlines, and Air Canada are the most popular carriers operating from Quebec to Lambert-St Louis

How long does it take to fly to St. Louis?

Flight times vary depending on what airport in Quebec you fly out of and what airport in St. Louis you fly into. For example, flying from Montreal to St. Louis takes 2h 47m on average. On the other hand, flying from Québec City to St. Louis takes 11h 46m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

Which airlines fly to St. Louis?

Air Canada, WestJet and United Airlines are the top three most popular airlines that fly to St. Louis from Quebec according to our data. Air Canada is the first choice among our users, with 55% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

How many flights depart from Quebec to St. Louis on average per day?

As of September 2025, 2 flights take off from Quebec and land in St. Louis each day. The most common flight departure time for this route is 6:00p.m., with 100% of daily flights taking off in the evening.

How many flights depart from Quebec to St. Louis on average per week?

14 flights are operational weekly from Quebec to St. Louis as of September 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

When did momondo last update prices for flights from Quebec to Lambert-St Louis Airport?

Prices for flights from Quebec to Lambert-St Louis Airport are updated daily.

How many operators does momondo search for flights from Quebec to Lambert-St Louis Airport?

The number of operators available for flights from Quebec to Lambert-St Louis Airport is 3 as of September 2025.

How old do you have to be to fly from Quebec to Lambert-St Louis Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Quebec to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 248 Cheap Flights from Quebec to St. Louis in 2025/26

1 adult

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Find the cheapest flights from Quebec to St. Louis

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

3:49 p.m. - 11:56 p.m.YUL-STL

9h 07m1 stop

5:15 a.m. - 3:10 p.m.STL-YUL

8h 55m1 stop

C$ 483American Airlines

Find Deal

Tue, 2 Dec - Mon, 8 Dec

12:30 p.m. - 11:54 p.m.YUL-STL

12h 24m1 stop

6:00 a.m. - 4:39 p.m.STL-YUL

9h 39m1 stop

C$ 484American Airlines

Find Deal

Thu, 23 Oct - Thu, 30 Oct

10:20 a.m. - 3:29 p.m.YOW-STL

6h 09m1 stop

6:43 p.m. - 10:26 a.m.STL-YOW

14h 43m1 stop

C$ 490Air Canada

Find Deal

Sun, 9 Nov - Sun, 16 Nov

6:00 a.m. - 10:41 a.m.YOW-STL

5h 41m1 stop

6:43 p.m. - 2:30 p.m.STL-YOW

18h 47m2 stops

C$ 494United Airlines

Find Deal

Sun, 9 Nov - Sun, 16 Nov

5:00 a.m. - 3:46 p.m.YOW-STL

11h 46m2 stops

6:30 a.m. - 2:30 p.m.STL-YOW

7h 00m2 stops

C$ 502United Airlines

Find Deal

Sun, 9 Nov - Sun, 16 Nov

6:35 p.m. - 10:16 a.m.YUL-STL

16h 41m2 stops

10:57 a.m. - 3:10 p.m.STL-YUL

27h 13m1 stop

C$ 567Multiple Airlines

Find Deal

Thu, 23 Oct - Thu, 30 Oct

6:45 a.m. - 11:01 a.m.YUL-STL

29h 16m1 stop

4:56 p.m. - 12:30 a.m.STL-YUL

54h 34m2 stops

C$ 584Multiple Airlines

Find Deal

Wed, 5 Nov - Fri, 7 Nov

7:30 p.m. - 8:13 a.m.YUL-STL

13h 43m1 stop

9:35 a.m. - 6:40 p.m.STL-YUL

8h 05m1 stop

C$ 628Delta

Find Deal

Wed, 5 Nov - Wed, 12 Nov

7:30 p.m. - 8:13 a.m.YUL-STL

13h 43m1 stop

9:35 a.m. - 6:40 p.m.STL-YUL

8h 05m1 stop

C$ 630Delta

Find Deal

Wed, 5 Nov - Wed, 12 Nov

8:50 a.m. - 3:29 p.m.YUL-STL

7h 39m2 stops

4:05 p.m. - 11:40 a.m.STL-YUL

18h 35m2 stops

C$ 825Air Canada

Find Deal

Wed, 5 Nov - Fri, 7 Nov

Air Canada flights from Quebec to St. Louis

Our best Air Canada deals on Quebec to St. Louis flight tickets

Air Canada

9 Nov

YOW10:20 a.m.Ottawa

6h 09m

1 stop

STL3:29 p.m.Lambert-St Louis

16 Nov

STL6:43 p.m.Lambert-St Louis

14h 43m

1 stop

YOW10:26 a.m.Ottawa

C$ 490

Find similar

Air Canada

5 Nov

YUL8:50 a.m.Montreal Pierre Elliott Trudeau Intl

7h 39m

2 stops

STL3:29 p.m.Lambert-St Louis

7 Nov

STL4:05 p.m.Lambert-St Louis

18h 35m

2 stops

YUL11:40 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 825

Find similar

Air Canada

4 Oct

YUL6:10 p.m.Montreal Pierre Elliott Trudeau Intl

2h 47m

STL7:57 p.m.Lambert-St Louis

5 Oct

STL1:30 p.m.Lambert-St Louis

2h 30m

YUL5:00 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 1,322

Find similar

Delta flights from Quebec to St. Louis

Our best Delta deals on Quebec to St. Louis flight tickets

Delta

5 Nov

YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl

13h 43m

1 stop

STL8:13 a.m.Lambert-St Louis

12 Nov

STL9:35 a.m.Lambert-St Louis

8h 05m

1 stop

YUL6:40 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 628

Find similar

Delta

5 Nov

YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl

13h 43m

1 stop

STL8:13 a.m.Lambert-St Louis

12 Nov

STL9:35 a.m.Lambert-St Louis

8h 05m

1 stop

YUL6:40 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 630

Find similar

Delta

14 Nov

YOW5:40 a.m.Ottawa

12h 29m

2 stops

STL5:09 p.m.Lambert-St Louis

21 Nov

STL7:05 a.m.Lambert-St Louis

16h 37m

2 stops

YOW12:42 a.m.Ottawa

C$ 806

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 2/12

3:49 p.m.-11:56 p.m.

1 stop9h 07m

Lambert-St Louis

Mon 8/12

5:15 a.m.-3:10 p.m.

1 stop8h 55m

C$ 483

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 23/10

12:30 p.m.-11:54 p.m.

1 stop12h 24m

Lambert-St Louis

Thu 30/10

6:00 a.m.-4:39 p.m.

1 stop9h 39m

C$ 484

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sun 9/11

10:20 a.m.-3:29 p.m.

1 stop6h 09m

Lambert-St Louis

Sun 16/11

6:43 p.m.-10:26 a.m.

1 stop14h 43m

C$ 490

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sun 9/11

6:00 a.m.-10:41 a.m.

1 stop5h 41m

Lambert-St Louis

Sun 16/11

6:43 p.m.-2:30 p.m.

2 stops18h 47m

C$ 494

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sun 9/11

5:00 a.m.-3:46 p.m.

2 stops11h 46m

Lambert-St Louis

Sun 16/11

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

2 stops7h 00m

C$ 502

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 23/10

6:35 p.m.-10:16 a.m.

2 stops16h 41m

Lambert-St Louis

Thu 30/10

10:57 a.m.-3:10 p.m.

1 stop27h 13m

C$ 567

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 5/11

6:45 a.m.-11:01 a.m.

1 stop29h 16m

Lambert-St Louis

Fri 7/11

4:56 p.m.-12:30 a.m.

2 stops54h 34m

C$ 584

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 5/11

7:30 p.m.-8:13 a.m.

1 stop13h 43m

Lambert-St Louis

Wed 12/11

9:35 a.m.-6:40 p.m.

1 stop8h 05m

C$ 628

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 5/11

7:30 p.m.-8:13 a.m.

1 stop13h 43m

Lambert-St Louis

Wed 12/11

9:35 a.m.-6:40 p.m.

1 stop8h 05m

C$ 630

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 5/11

8:50 a.m.-3:29 p.m.

2 stops7h 39m

Lambert-St Louis

Fri 7/11

4:05 p.m.-11:40 a.m.

2 stops18h 35m

C$ 825

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How to get the cheapest flight ticket from Quebec to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

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

The month of July is, on average, the cheapest month to fly to St. Louis from Quebec, with most prices found around C$ 397. If you don’t want to visit St. Louis in July, then you should wait until February to fly from Quebec, when ticket prices are also cheap, with an average price of C$ 631.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Friday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 621. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 1,123.

What is the cheapest time of day to depart on your flight to St. Louis?

The cheapest time of day to fly to St. Louis is in the morning when flights can be purchased for as low as C$ 703. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 965 on average. Flights to St. Louis from Quebec in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Quebec to Lambert-St Louis flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to Lambert-St Louis for the best Quebec - Lambert-St Louis flight prices

What cabin class options are available on Quebec to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Quebec to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Quebec to St. Louis flights?

You could potentially save up to 18% on your flight if you consider stops on a Quebec to St. Louis flight.

Cheap Quebec to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Quebec to St. Louis

Fastest flight time	2h 47m
Direct flights	Tue, Wed and Sun
Airports in St. Louis	1 airport

The fastest flight from Quebec to St. Louis takes 2h 47m

Direct flights go from Quebec to St. Louis on Tuesday, Wednesday and Sunday. The only airline offering direct flights is Air Canada.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Quebec to Lambert-St Louis Airport?
Prices for flights from Quebec to Lambert-St Louis Airport are updated daily.
How many operators does momondo search for flights from Quebec to Lambert-St Louis Airport?
The number of operators available for flights from Quebec to Lambert-St Louis Airport is 3 as of September 2025.
How old do you have to be to fly from Quebec to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Quebec to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Quebec to St. Louis?
Based on momondo bookings for flights between Quebec and St. Louis, the leading plane model is Canadair (Bombardier) Regional Jet 900, making up 86.21% of the total bookings. Other popular models include Airbus A220-300 with 13.79%.

Best airlines flying from Quebec to St. Louis

Compare and see reviews for airlines that fly from Quebec to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 544	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 595	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 744	Free Cancellation	Rating 7.2 3,107 reviews	Search WestJet flights

Chesterfield

Collinsville

Litchfield

Why use momondo?

Why should I use momondo to find a flight deal from Quebec to St. Louis?

It is quick and easy to find Quebec to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Can I find flights from Quebec to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from Quebec on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Quebec to St. Louis?

Once you have performed a search for Quebec to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Quebec to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Quebec. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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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 momondo user in the last 72 hours by searching for a flight from Quebec to St. Louis departing on 7/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Quebec to St. Louis

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Air Canada flights from Quebec to St. Louis

Our best Air Canada deals on Quebec to St. Louis flight tickets

Delta flights from Quebec to St. Louis

Our best Delta deals on Quebec to St. Louis flight tickets

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

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How to get the cheapest flight ticket from Quebec to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The month of July is, on average, the cheapest month to fly to St. Louis from Quebec, with most prices found around C$ 397. If you don’t want to visit St. Louis in July, then you should wait until February to fly from Quebec, when ticket prices are also cheap, with an average price of C$ 631.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Friday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 621. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 1,123.

What is the cheapest time of day to depart on your flight to St. Louis?

What is the cheapest Quebec to Lambert-St Louis flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to Lambert-St Louis for the best Quebec - Lambert-St Louis flight prices

What cabin class options are available on Quebec to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Quebec to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Quebec to St. Louis flights?

You could potentially save up to 18% on your flight if you consider stops on a Quebec to St. Louis flight.

What is the cheapest airline that flies from Quebec to Lambert-St Louis?

United Airlines, American Airlines, and Air Canada are the most popular carriers operating from Quebec to Lambert-St Louis

Which airlines fly to St. Louis?

How many flights depart from Quebec to St. Louis on average per day?

As of September 2025, 2 flights take off from Quebec and land in St. Louis each day. The most common flight departure time for this route is 6:00p.m., with 100% of daily flights taking off in the evening.

How many flights depart from Quebec to St. Louis on average per week?

14 flights are operational weekly from Quebec to St. Louis as of September 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

How long does it take to fly to St. Louis?

Cheap Quebec to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Quebec to St. Louis

Fastest flight time

Direct flights

Airports in St. Louis

When did momondo last update prices for flights from Quebec to Lambert-St Louis Airport?

How many operators does momondo search for flights from Quebec to Lambert-St Louis Airport?

How old do you have to be to fly from Quebec to Lambert-St Louis Airport?

What documentation or ID do you need to fly to Lambert-St Louis Airport?

What is the most popular plane model from Quebec to St. Louis?

Best airlines flying from Quebec to St. Louis

Compare and see reviews for airlines that fly from Quebec to St. Louis with momondo

Travelling to a place near St. Louis?

Why use momondo?

Why should I use momondo to find a flight deal from Quebec to St. Louis?

Can I find flights from Quebec to St. Louis with flexible booking policies on momondo?

How can momondo help me find flights from Quebec to St. Louis?

I’m not ready to book a flight from Quebec to St. Louis right now. Can momondo alert me if prices change?

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Missouri