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

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

What airlines fly to Quebec?

Air Canada, United Airlines and American Airlines 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 44% of people opting to fly with this airline when traveling to Quebec. Keep in mind that there are 4 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 4 as of March 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.

$154 Cheap Flights from St. Louis to Quebec in 2026

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from St. Louis to Quebec

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:00 pm - 8:51 pm

STL

YOW

6h 51m

1 stop

7:00 am - 12:06 pm

YOW

STL

6h 06m

1 stop

$345Air Canada

Mon, May 4 - Sun, May 10

4:59 pm - 12:30 am

STL

YUL

30h 31m

1 stop

8:00 am - 6:50 am

YUL

STL

47h 50m

2 stops

$366Multiple Airlines

Mon, Apr 20 - Mon, Apr 27

4:59 pm - 12:30 am

STL

YUL

30h 31m

1 stop

8:00 am - 6:50 am

YUL

STL

47h 50m

2 stops

$374Multiple Airlines

Mon, Apr 20 - Mon, Apr 27

4:59 pm - 12:30 am

STL

YUL

30h 31m

1 stop

8:00 am - 6:50 am

YUL

STL

47h 50m

2 stops

$378Multiple Airlines

Mon, Apr 20 - Mon, Apr 27

8:03 pm - 11:44 am

STL

YUL

14h 41m

1 stop

12:30 pm - 10:17 pm

YUL

STL

10h 47m

1 stop

$383American Airlines

Wed, Apr 8 - Wed, Apr 15

1:00 pm - 8:51 pm

STL

YOW

6h 51m

1 stop

3:00 pm - 8:25 pm

YOW

STL

6h 25m

1 stop

$384Air Canada

Wed, May 13 - Mon, May 18

8:03 pm - 11:44 am

STL

YUL

14h 41m

1 stop

12:30 pm - 10:19 pm

YUL

STL

10h 49m

1 stop

$387American Airlines

Mon, May 11 - Sat, May 16

1:00 pm - 8:51 pm

STL

YOW

6h 51m

1 stop

7:00 am - 12:06 pm

YOW

STL

6h 06m

1 stop

$389Air Canada

Wed, May 13 - Mon, May 18

9:10 am - 5:07 pm

STL

YOW

6h 57m

1 stop

6:25 am - 10:45 am

YOW

STL

5h 20m

1 stop

$392United Airlines

Wed, Apr 15 - Sun, Apr 19

9:10 am - 5:07 pm

STL

YOW

6h 57m

1 stop

5:25 pm - 9:52 pm

YOW

STL

5h 27m

1 stop

$402United Airlines

Wed, Apr 15 - Sun, Apr 19

American Airlines flights from St. Louis to Quebec

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

American Airlines

May 11

STL8:03 pmLambert-St Louis

14h 41m

1 stop

YUL11:44 amMontreal Pierre Elliott Trudeau Intl

May 16

YUL12:30 pmMontreal Pierre Elliott Trudeau Intl

10h 49m

1 stop

STL10:19 pmLambert-St Louis

$387

American Airlines

May 11

STL8:03 pmLambert-St Louis

14h 41m

1 stop

YUL11:44 amMontreal Pierre Elliott Trudeau Intl

May 16

YUL1:03 pmMontreal Pierre Elliott Trudeau Intl

11h 53m

2 stops

STL11:56 pmLambert-St Louis

$397

American Airlines

Apr 20

STL5:21 pmLambert-St Louis

17h 23m

1 stop

YUL11:44 amMontreal Pierre Elliott Trudeau Intl

Apr 27

YUL12:30 pmMontreal Pierre Elliott Trudeau Intl

12h 16m

1 stop

STL11:46 pmLambert-St Louis

$401

United Airlines flights from St. Louis to Quebec

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

United Airlines

Apr 15

STL9:10 amLambert-St Louis

6h 57m

1 stop

YOW5:07 pmOttawa

Apr 19

YOW6:25 amOttawa

5h 20m

1 stop

STL10:45 amLambert-St Louis

$392

United Airlines

Mar 24

STL7:40 amLambert-St Louis

7h 50m

2 stops

YOW4:30 pmOttawa

Mar 25

YOW5:11 pmOttawa

5h 31m

1 stop

STL9:42 pmLambert-St Louis

$402

United Airlines

Apr 9

STL9:10 amLambert-St Louis

6h 57m

1 stop

YOW5:07 pmOttawa

Apr 16

YOW6:25 amOttawa

5h 20m

1 stop

STL10:45 amLambert-St Louis

$403

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 5/4

1:00 pm-8:51 pm

1 stop6h 51m

Ottawa

Sun 5/10

7:00 am-12:06 pm

1 stop6h 06m

$345

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 4/20

4:59 pm-12:30 am

1 stop30h 31m

Montreal Pierre Elliott Trudeau Intl

Mon 4/27

8:00 am-6:50 am

2 stops47h 50m

$366

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 4/20

4:59 pm-12:30 am

1 stop30h 31m

Montreal Pierre Elliott Trudeau Intl

Mon 4/27

8:00 am-6:50 am

2 stops47h 50m

$374

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 4/20

4:59 pm-12:30 am

1 stop30h 31m

Montreal Pierre Elliott Trudeau Intl

Mon 4/27

8:00 am-6:50 am

2 stops47h 50m

$378

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 4/8

8:03 pm-11:44 am

1 stop14h 41m

Montreal Pierre Elliott Trudeau Intl

Wed 4/15

12:30 pm-10:17 pm

1 stop10h 47m

$383

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 5/13

1:00 pm-8:51 pm

1 stop6h 51m

Ottawa

Mon 5/18

3:00 pm-8:25 pm

1 stop6h 25m

$384

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 5/11

8:03 pm-11:44 am

1 stop14h 41m

Montreal Pierre Elliott Trudeau Intl

Sat 5/16

12:30 pm-10:19 pm

1 stop10h 49m

$387

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 5/13

1:00 pm-8:51 pm

1 stop6h 51m

Ottawa

Mon 5/18

7:00 am-12:06 pm

1 stop6h 06m

$389

Quickest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 4/15

9:10 am-5:07 pm

1 stop6h 57m

Ottawa

Sun 4/19

6:25 am-10:45 am

1 stop5h 20m

$392

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 4/15

9:10 am-5:07 pm

1 stop6h 57m

Ottawa

Sun 4/19

5:25 pm-9:52 pm

1 stop5h 27m

$402

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 day to depart on your flight to Quebec?

Our data shows that Monday is the least expensive day to fly to Quebec. Tickets to fly out on this day can be as low as $994. 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 $1,168.

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 $996. Try not to purchase tickets at noon because they tend to be around $1,061. 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 Lambert-St Louis to Quebec flights?

There are 3 cabin classes available to choose from on Lambert-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 18% 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	$383
Fastest flight time	2h 32m
Direct flights	Every day
Airports in Quebec	76 airports

The best one-way flight to Quebec from St. Louis in the past 72 hours is $383. The best round-trip flight deal from St. Louis to Quebec found on momondo in the last 72 hours is $857.

The fastest flight from St. Louis to Quebec takes 2h 32m

Direct flights go from St. Louis to Quebec every day.

There are 76 airports in Quebec. From St. Louis there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL).

Search flight deals

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 4 as of March 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 Boeing 787-8 Dreamliner (50.00% of total bookings). The next most popular plane models are Airbus A220-300 (12.00%), Canadair (Bombardier) Regional Jet 900 (8.00%), and Airbus A330-300 (6.00%).

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 $193	Free Cancellation	Rating 7.1 10,800 reviews	Search Air Canada flights
Delta	PriceFrom $212	Free Cancellation	Rating 7.9 8,278 reviews	Search Delta flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 9,413 reviews	Search United Airlines flights
American Airlines	PriceFrom $348	Free Cancellation	Rating 7.1 11,421 reviews	Search American 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.