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

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

What airlines fly to Quebec?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Quebec from St. Louis according to our data. Air Canada is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Quebec. Keep in mind that there are 3 different airlines that fly to Quebec on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Lambert-St Louis Airport to Quebec were last updated today.

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

The number of operators available for flights from Lambert-St Louis Airport to Quebec is 3 as of October 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Quebec.

What documentation or ID do you need to fly to Quebec?

The required travel and health documents for your Quebec trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Quebec. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$180 Cheap Flights from St. Louis to Quebec in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Quebec

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:15 pm - 11:30 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

14h 15m1 stop Chicago O'Hare Intl

12:10 pm - 10:31 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 21m1 stop Chicago O'Hare Intl

$396American Airlines

Wed, Feb 3 - Sat, Feb 6

7:21 am - 9:31 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

13h 10m2 stops Chicago O'Hare Intl Philadelphia

12:10 pm - 10:31 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 21m1 stop Chicago O'Hare Intl

$405American Airlines

Wed, Feb 3 - Sat, Feb 6

7:21 am - 9:31 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

13h 10m2 stops Chicago O'Hare Intl Philadelphia

1:00 pm - 11:57 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 57m2 stops Philadelphia Chicago O'Hare Intl

$411American Airlines

Wed, Feb 3 - Sat, Feb 6

5:51 pm - 8:48 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

13h 57m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

9:28 am - 8:51 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

12h 23m1 stop New York LaGuardia

$517Delta

Wed, Dec 16 - Wed, Jan 6

4:05 pm - 11:16 pmSTL Lambert-St Louis-YQB Québec City

6h 11m1 stop Toronto Pearson Intl

10:40 am - 3:26 pmYQB Québec City-STL Lambert-St Louis

5h 46m1 stop Toronto Pearson Intl

$774Air Canada

Sat, Jan 2 - Sat, Jan 9

4:05 pm - 11:16 pmSTL Lambert-St Louis-YQB Québec City

6h 11m1 stop Toronto Pearson Intl

5:55 am - 3:26 pmYQB Québec City-STL Lambert-St Louis

10h 31m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$776Air Canada

Sat, Jan 2 - Sat, Jan 9

9:59 am - 10:47 pmSTL Lambert-St Louis-YQB Québec City

11h 48m1 stop Newark

3:16 pm - 11:24 pmYQB Québec City-STL Lambert-St Louis

9h 08m1 stop Chicago O'Hare Intl

$787United Airlines

Mon, Nov 9 - Thu, Nov 12

6:00 am - 6:50 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

11h 50m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

9:28 am - 8:37 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

12h 09m2 stops New York LaGuardia Detroit Metropolitan Wayne County

$792Delta

Thu, Apr 8 - Tue, Apr 13

5:00 am - 2:00 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

8h 00m1 stop Chicago O'Hare Intl

1:10 pm - 6:09 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

5h 59m1 stop Chicago O'Hare Intl

$830United Airlines

Thu, Nov 26 - Mon, Nov 30

7:00 am - 6:50 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

10h 50m1 stop New York LaGuardia

9:28 am - 8:51 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

12h 23m1 stop New York LaGuardia

$869Delta

Wed, Apr 7 - Wed, Apr 14

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American Airlines flights from St. Louis to Quebec

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

American Airlines

Feb 3

STL8:15 pmLambert-St Louis

14h 15m

1 stop

YUL11:30 amMontreal Pierre Elliott Trudeau Intl

Feb 6

YUL12:10 pmMontreal Pierre Elliott Trudeau Intl

11h 21m

1 stop

STL10:31 pmLambert-St Louis

$396

American Airlines

Feb 3

STL7:21 amLambert-St Louis

13h 10m

2 stops

YUL9:31 pmMontreal Pierre Elliott Trudeau Intl

Feb 6

YUL12:10 pmMontreal Pierre Elliott Trudeau Intl

11h 21m

1 stop

STL10:31 pmLambert-St Louis

$405

American Airlines

Feb 3

STL7:21 amLambert-St Louis

13h 10m

2 stops

YUL9:31 pmMontreal Pierre Elliott Trudeau Intl

Feb 6

YUL1:00 pmMontreal Pierre Elliott Trudeau Intl

11h 57m

2 stops

STL11:57 pmLambert-St Louis

$411

Air Canada flights from St. Louis to Quebec

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

Air Canada

Jan 2

STL4:05 pmLambert-St Louis

6h 11m

1 stop

YQB11:16 pmQuébec City

Jan 9

YQB10:40 amQuébec City

5h 46m

1 stop

STL3:26 pmLambert-St Louis

$774

Air Canada

Jan 2

STL4:05 pmLambert-St Louis

6h 11m

1 stop

YQB11:16 pmQuébec City

Jan 9

YQB5:55 amQuébec City

10h 31m

2 stops

STL3:26 pmLambert-St Louis

$776

Air Canada

Jan 2

STL4:05 pmLambert-St Louis

6h 46m

2 stops

YQB11:51 pmQuébec City

Jan 9

YQB5:55 amQuébec City

10h 31m

2 stops

STL3:26 pmLambert-St Louis

$791

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Wed 2/3

8:15 pm-11:30 am

1 stop14h 15m

Montreal Pierre Elliott Trudeau Intl

Sat 2/6

12:10 pm-10:31 pm

1 stop11h 21m

$396

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Wed 2/3

7:21 am-9:31 pm

2 stops13h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 2/6

12:10 pm-10:31 pm

1 stop11h 21m

$405

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Wed 2/3

7:21 am-9:31 pm

2 stops13h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 2/6

1:00 pm-11:57 pm

2 stops11h 57m

$411

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Wed 12/16

5:51 pm-8:48 am

2 stops13h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 1/6

9:28 am-8:51 pm

1 stop12h 23m

$517

Quickest round-trip

St. LouisQuébec City

STL Lambert-St Louis - YQB Québec City

STLYQB

Lambert-St Louis

Sat 1/2

4:05 pm-11:16 pm

1 stop6h 11m

Québec City

Sat 1/9

10:40 am-3:26 pm

1 stop5h 46m

$774

St. LouisQuébec City

STL Lambert-St Louis - YQB Québec City

STLYQB

Lambert-St Louis

Sat 1/2

4:05 pm-11:16 pm

1 stop6h 11m

Québec City

Sat 1/9

5:55 am-3:26 pm

2 stops10h 31m

$776

St. LouisQuébec City

STL Lambert-St Louis - YQB Québec City

STLYQB

Lambert-St Louis

Mon 11/9

9:59 am-10:47 pm

1 stop11h 48m

Québec City

Thu 11/12

3:16 pm-11:24 pm

1 stop9h 08m

$787

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Thu 4/8

6:00 am-6:50 pm

2 stops11h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 4/13

9:28 am-8:37 pm

2 stops12h 09m

$792

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Thu 11/26

5:00 am-2:00 pm

1 stop8h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 11/30

1:10 pm-6:09 pm

1 stop5h 59m

$830

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Wed 4/7

7:00 am-6:50 pm

1 stop10h 50m

Montreal Pierre Elliott Trudeau Intl

Wed 4/14

9:28 am-8:51 pm

1 stop12h 23m

$869

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

What is the cheapest month to fly to Quebec?

If you aren’t able to travel to Quebec during the month of August, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $506.

What is the cheapest day to depart on your flight to Quebec?

Our data shows that Tuesday is the least expensive day to fly to Quebec. Tickets to fly out on this day can be as low as $939. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Quebec for around $1,232.

What is the cheapest time of day to depart on your flight to Quebec?

The cheapest time of day to fly to Quebec is in the morning when flights can be purchased for as low as $994. Try not to purchase tickets at noon because they tend to be around $1,165. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

There are 4 cabin classes available to choose from on St. Louis to Quebec 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 St. Louis to Quebec flights?

You could potentially save up to 17% on your flight if you consider stops on a St. Louis to Quebec flight.

Cheap St. Louis to Quebec flight deals and tips

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

Best Price Found	$180
Fastest flight time	6h 11m
Direct flights	None

The best one-way flight to Quebec from St. Louis in the past 72 hours is $180. The best round-trip flight deal from St. Louis to Quebec found on momondo in the last 72 hours is $396.

The fastest flight from St. Louis to Quebec takes 6h 11m

There are no direct flights from St. Louis to Quebec. Popular non-direct route for this connection is Lambert-St Louis Airport - Montreal Pierre Elliott Trudeau Intl Airport.

Search flight deals

Frequently asked questions about flying from St. Louis to Quebec

When did momondo last update prices for flights from Lambert-St Louis Airport to Quebec?
Prices for flights from Lambert-St Louis Airport to Quebec were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Quebec?
The number of operators available for flights from Lambert-St Louis Airport to Quebec is 3 as of October 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Quebec?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Quebec.
What documentation or ID do you need to fly to Quebec?
The required travel and health documents for your Quebec trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Quebec. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from St. Louis to Quebec?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from St. Louis to Quebec is Canadair (Bombardier) Regional Jet 900 (54.90% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (21.57%), Embraer 175 (11.76%), and Airbus A330-300 (5.88%).

Best airlines flying from St. Louis to Quebec

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $257	Free Cancellation	Rating 7.1 11,819 reviews	Search Air Canada flights
Delta	PriceFrom $288	Free Cancellation	Rating 7.8 8,681 reviews	Search Delta flights
United Airlines	PriceFrom $296	Free Cancellation	Rating 7.3 10,442 reviews	Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Quebec. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Quebec from St. Louis which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for St. Louis to Quebec 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 St. Louis to Quebec right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Quebec, momondo offers a useful price alert feature which will track prices for flights to Quebec from St. Louis and alert you when they change.