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 55m on average. On the other hand, flying from Québec City to St. Louis takes 7h 45m 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.

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

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

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 56% 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.

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 November 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$ 407 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

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:25 p.m. - 6:25 p.m.YOW-STL

5h 00m1 stop

1:30 p.m. - 8:15 p.m.STL-YOW

5h 45m1 stop

C$ 413Air Canada

Find Deal

Fri, 8 May - Sun, 10 May

2:25 p.m. - 6:25 p.m.YOW-STL

5h 00m1 stop

1:30 p.m. - 8:15 p.m.STL-YOW

5h 45m1 stop

C$ 414Air Canada

Find Deal

Thu, 7 May - Sun, 10 May

5:25 p.m. - 9:47 p.m.YOW-STL

5h 22m1 stop

7:45 a.m. - 1:45 p.m.STL-YOW

5h 00m1 stop

C$ 420United Airlines

Find Deal

Tue, 7 Apr - Wed, 8 Apr

10:35 a.m. - 10:59 p.m.YOW-STL

13h 24m1 stop

7:45 a.m. - 1:45 p.m.STL-YOW

5h 00m1 stop

C$ 421United Airlines

Find Deal

Tue, 7 Apr - Wed, 8 Apr

5:15 a.m. - 2:18 p.m.YOW-STL

10h 03m2 stops

1:30 p.m. - 9:15 p.m.STL-YOW

6h 45m1 stop

C$ 504Multiple Airlines

Find Deal

Thu, 7 May - Sun, 10 May

12:30 p.m. - 9:48 p.m.YUL-STL

10h 18m1 stop

11:14 a.m. - 11:15 a.m.STL-YUL

23h 01m1 stop

C$ 548American Airlines

Find Deal

Tue, 7 Apr - Wed, 8 Apr

12:30 p.m. - 9:48 p.m.YUL-STL

10h 18m1 stop

11:14 a.m. - 11:15 a.m.STL-YUL

23h 01m1 stop

C$ 551American Airlines

Find Deal

Tue, 7 Apr - Wed, 8 Apr

8:00 a.m. - 9:47 a.m.YUL-STL

26h 47m2 stops

2:47 p.m. - 4:23 p.m.STL-YUL

24h 36m1 stop

C$ 604Multiple Airlines

Find Deal

Thu, 4 Dec - Thu, 11 Dec

9:35 a.m. - 3:52 p.m.YUL-STL

7h 17m1 stop

5:34 p.m. - 11:47 p.m.STL-YUL

5h 13m1 stop

C$ 735Delta

Find Deal

Thu, 4 Dec - Thu, 11 Dec

6:15 p.m. - 11:38 p.m.YUL-STL

6h 23m1 stop

9:00 a.m. - 5:07 p.m.STL-YUL

7h 07m1 stop

C$ 772Delta

Find Deal

Fri, 8 May - Sun, 10 May

Air Canada flights from Quebec to St. Louis

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

Air Canada

8 May

YOW2:25 p.m.Ottawa

5h 00m

1 stop

STL6:25 p.m.Lambert-St Louis

10 May

STL1:30 p.m.Lambert-St Louis

5h 45m

1 stop

YOW8:15 p.m.Ottawa

C$ 413

Find similar

Air Canada

7 May

YOW2:25 p.m.Ottawa

5h 00m

1 stop

STL6:25 p.m.Lambert-St Louis

10 May

STL1:30 p.m.Lambert-St Louis

5h 45m

1 stop

YOW8:15 p.m.Ottawa

C$ 414

Find similar

Air Canada

7 Apr

YOW5:45 a.m.Ottawa

16h 18m

2 stops

STL9:03 p.m.Lambert-St Louis

8 Apr

STL7:45 a.m.Lambert-St Louis

5h 00m

1 stop

YOW1:45 p.m.Ottawa

C$ 496

Find similar

United Airlines flights from Quebec to St. Louis

Our best United Airlines deals on Quebec to St. Louis flight tickets

United Airlines

7 Apr

YOW5:25 p.m.Ottawa

5h 22m

1 stop

STL9:47 p.m.Lambert-St Louis

8 Apr

STL7:45 a.m.Lambert-St Louis

5h 00m

1 stop

YOW1:45 p.m.Ottawa

C$ 420

Find similar

United Airlines

7 Apr

YOW10:35 a.m.Ottawa

13h 24m

1 stop

STL10:59 p.m.Lambert-St Louis

8 Apr

STL7:45 a.m.Lambert-St Louis

5h 00m

1 stop

YOW1:45 p.m.Ottawa

C$ 421

Find similar

United Airlines

7 Apr

YOW2:05 p.m.Ottawa

8h 42m

2 stops

STL9:47 p.m.Lambert-St Louis

8 Apr

STL7:45 a.m.Lambert-St Louis

5h 00m

1 stop

YOW1:45 p.m.Ottawa

C$ 503

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 8/5

2:25 p.m.-6:25 p.m.

1 stop5h 00m

Lambert-St Louis

Sun 10/5

1:30 p.m.-8:15 p.m.

1 stop5h 45m

C$ 413

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 7/5

2:25 p.m.-6:25 p.m.

1 stop5h 00m

Lambert-St Louis

Sun 10/5

1:30 p.m.-8:15 p.m.

1 stop5h 45m

C$ 414

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 7/4

5:25 p.m.-9:47 p.m.

1 stop5h 22m

Lambert-St Louis

Wed 8/4

7:45 a.m.-1:45 p.m.

1 stop5h 00m

C$ 420

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 7/4

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

1 stop13h 24m

Lambert-St Louis

Wed 8/4

7:45 a.m.-1:45 p.m.

1 stop5h 00m

C$ 421

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 7/5

5:15 a.m.-2:18 p.m.

2 stops10h 03m

Lambert-St Louis

Sun 10/5

1:30 p.m.-9:15 p.m.

1 stop6h 45m

C$ 504

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 7/4

12:30 p.m.-9:48 p.m.

1 stop10h 18m

Lambert-St Louis

Wed 8/4

11:14 a.m.-11:15 a.m.

1 stop23h 01m

C$ 548

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 7/4

12:30 p.m.-9:48 p.m.

1 stop10h 18m

Lambert-St Louis

Wed 8/4

11:14 a.m.-11:15 a.m.

1 stop23h 01m

C$ 551

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

8:00 a.m.-9:47 a.m.

2 stops26h 47m

Lambert-St Louis

Thu 11/12

2:47 p.m.-4:23 p.m.

1 stop24h 36m

C$ 604

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

9:35 a.m.-3:52 p.m.

1 stop7h 17m

Lambert-St Louis

Thu 11/12

5:34 p.m.-11:47 p.m.

1 stop5h 13m

C$ 735

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

6:15 p.m.-11:38 p.m.

1 stop6h 23m

Lambert-St Louis

Sun 10/5

9:00 a.m.-5:07 p.m.

1 stop7h 07m

C$ 772

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Showing 1-10 of 18 resultsSorted by cheapest first

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$ 402. 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$ 639.

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$ 629. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 1,137.

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$ 712. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 769 on average. Flights to St. Louis from Quebec in the afternoon 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 55m
Direct flights	Sat
Airports in St. Louis	1 airport

The fastest flight from Quebec to St. Louis takes 2h 55m

Direct flights go from Quebec to St. Louis on Saturday. 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 November 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 85.19% of the total bookings. Other popular models include Airbus A220-300 with 14.81%.

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$ 551	Free Cancellation	Rating 7.1 10,437 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 602	Free Cancellation	Rating 7.4 9,012 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 753	Free Cancellation	Rating 7.2 3,159 reviews	Search WestJet flights

Chesterfield

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$ 407

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 25/12. 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

United Airlines flights from Quebec to St. Louis

Our best United Airlines 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.

See travel insights to St. Louis from

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$ 402. 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$ 639.

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$ 629. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 1,137.

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

Which airlines fly to St. Louis?

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