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

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

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

As of April 2026, there are 6 flights per week flying from St. Louis to Quebec. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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 are refreshed on a daily basis.

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 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 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.

C$ 309 Cheap Flights from St. Louis to Quebec in 2026

1 adult

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.

1:05 p.m. - 4:40 p.m.

STL

YUL

2h 35mdirect

6:30 p.m. - 8:25 p.m.

YUL

STL

2h 55mdirect

C$ 596Air Canada

Sat, 9 May - Sun, 10 May

1:05 p.m. - 4:40 p.m.

STL

YUL

2h 35mdirect

7:30 a.m. - 12:06 p.m.

YUL

STL

5h 36m

1 stop

C$ 607Air Canada

Sat, 9 May - Sun, 10 May

7:05 a.m. - 1:21 p.m.

STL

YUL

5h 16m

1 stop

6:30 p.m. - 8:25 p.m.

YUL

STL

2h 55mdirect

C$ 634Air Canada

Fri, 15 May - Sun, 17 May

7:05 a.m. - 1:21 p.m.

STL

YUL

5h 16m

1 stop

7:30 a.m. - 12:06 p.m.

YUL

STL

5h 36m

1 stop

C$ 651Air Canada

Fri, 15 May - Sun, 17 May

12:10 p.m. - 3:42 p.m.

STL

YUL

2h 32mdirect

8:40 a.m. - 2:02 p.m.

YUL

STL

6h 22m

2 stops

C$ 656Air Canada

Tue, 7 Jul - Tue, 14 Jul

6:00 a.m. - 6:53 p.m.

STL

YUL

11h 53m

1 stop

9:30 a.m. - 8:39 p.m.

YUL

STL

12h 09m

1 stop

C$ 663Delta

Tue, 26 May - Tue, 2 Jun

6:00 a.m. - 6:53 p.m.

STL

YUL

11h 53m

1 stop

9:30 a.m. - 9:38 p.m.

YUL

STL

13h 08m

2 stops

C$ 676Delta

Tue, 26 May - Tue, 2 Jun

5:40 p.m. - 3:31 p.m.

STL

YQB

20h 51m

1 stop

5:55 p.m. - 8:31 a.m.

YQB

STL

15h 36m

1 stop

C$ 888American Airlines

Wed, 17 Jun - Sat, 20 Jun

7:30 a.m. - 4:12 p.m.

STL

YQB

7h 42m

1 stop

4:55 p.m. - 11:25 p.m.

YQB

STL

7h 30m

1 stop

C$ 939United Airlines

Mon, 19 Oct - Mon, 2 Nov

7:30 a.m. - 3:08 p.m.

STL

YQB

6h 38m

1 stop

6:00 a.m. - 3:38 p.m.

YQB

STL

10h 38m

2 stops

C$ 953United Airlines

Mon, 19 Oct - Thu, 29 Oct

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Delta flights from St. Louis to Quebec

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

Delta

26 May

STL6:00 a.m.Lambert-St Louis

11h 53m

1 stop

YUL6:53 p.m.Montreal Pierre Elliott Trudeau Intl

2 Jun

YUL9:30 a.m.Montreal Pierre Elliott Trudeau Intl

12h 09m

1 stop

STL8:39 p.m.Lambert-St Louis

C$ 663

Delta

26 May

STL6:00 a.m.Lambert-St Louis

11h 53m

1 stop

YUL6:53 p.m.Montreal Pierre Elliott Trudeau Intl

2 Jun

YUL9:30 a.m.Montreal Pierre Elliott Trudeau Intl

13h 08m

2 stops

STL9:38 p.m.Lambert-St Louis

C$ 676

Delta

26 May

STL6:00 a.m.Lambert-St Louis

11h 53m

1 stop

YUL6:53 p.m.Montreal Pierre Elliott Trudeau Intl

31 May

YUL12:40 p.m.Montreal Pierre Elliott Trudeau Intl

9h 58m

1 stop

STL9:38 p.m.Lambert-St Louis

C$ 693

American Airlines flights from St. Louis to Quebec

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

American Airlines

9 Jun

STL7:30 a.m.Lambert-St Louis

14h 29m

1 stop

YUL10:59 p.m.Montreal Pierre Elliott Trudeau Intl

16 Jun

YUL12:30 p.m.Montreal Pierre Elliott Trudeau Intl

12h 26m

1 stop

STL11:56 p.m.Lambert-St Louis

C$ 682

American Airlines

25 Sep

STL3:29 p.m.Lambert-St Louis

17h 16m

1 stop

YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl

29 Sep

YUL10:35 a.m.Montreal Pierre Elliott Trudeau Intl

11h 28m

2 stops

STL9:03 p.m.Lambert-St Louis

C$ 816

American Airlines

17 Jun

STL5:40 p.m.Lambert-St Louis

20h 51m

1 stop

YQB3:31 p.m.Québec City

20 Jun

YQB5:55 p.m.Québec City

15h 36m

1 stop

STL8:31 a.m.Lambert-St Louis

C$ 888

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 9/5

1:05 p.m.-4:40 p.m.

Nonstop2h 35m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

C$ 596

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 9/5

1:05 p.m.-4:40 p.m.

Nonstop2h 35m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

7:30 a.m.-12:06 p.m.

1 stop5h 36m

C$ 607

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 15/5

7:05 a.m.-1:21 p.m.

1 stop5h 16m

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

C$ 634

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 15/5

7:05 a.m.-1:21 p.m.

1 stop5h 16m

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

7:30 a.m.-12:06 p.m.

1 stop5h 36m

C$ 650

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 7/7

12:10 p.m.-3:42 p.m.

Nonstop2h 32m

Montreal Pierre Elliott Trudeau Intl

Tue 14/7

8:40 a.m.-2:02 p.m.

2 stops6h 22m

C$ 656

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 26/5

6:00 a.m.-6:53 p.m.

1 stop11h 53m

Montreal Pierre Elliott Trudeau Intl

Tue 2/6

9:30 a.m.-8:39 p.m.

1 stop12h 09m

C$ 663

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 26/5

6:00 a.m.-6:53 p.m.

1 stop11h 53m

Montreal Pierre Elliott Trudeau Intl

Tue 2/6

9:30 a.m.-9:38 p.m.

2 stops13h 08m

C$ 676

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 17/6

5:40 p.m.-3:31 p.m.

1 stop20h 51m

Québec City

Sat 20/6

5:55 p.m.-8:31 a.m.

1 stop15h 36m

C$ 888

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 19/10

7:30 a.m.-4:12 p.m.

1 stop7h 42m

Québec City

Mon 2/11

4:55 p.m.-11:25 p.m.

1 stop7h 30m

C$ 939

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 19/10

7:30 a.m.-3:08 p.m.

1 stop6h 38m

Québec City

Thu 29/10

6:00 a.m.-3:38 p.m.

2 stops10h 38m

C$ 953

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

Other information

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 is only 1 cabin class 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 38% 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

Fastest flight time	2h 32m
Direct flights	Every day
Airports in Quebec	76 airports

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

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 are refreshed on a daily basis.
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 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 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 (41.67% of total bookings). The next most popular plane models are Airbus A220-300 (16.67%), Canadair (Bombardier) Regional Jet 900 (16.67%), and Airbus A330-300 (5.00%).

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Quebec . Millions of users trust and use momondo every year so you are in good hands.

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 in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Quebec from St. Louis.

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

Yes momondo offers price alerts on flights to Quebec from St. Louis. 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.