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

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

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

As of July 2026, 2 flights take off from St. Louis and land in Quebec each day. The most common flight departure time for this route is 12:00p.m., with 100% of daily flights taking off in the afternoon.

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

As of July 2026, there are 14 flights per week flying from St. Louis to Quebec. The most common day of the week flights depart is Mon, with 14% 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$ 294 Cheap Flights from St. Louis to Quebec in 2026

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.

4:54 p.m. - 11:43 a.m.

STL

YUL

17h 49m

1 stop

5:34 p.m. - 8:24 a.m.

YUL

STL

15h 50m

1 stop

C$ 655American Airlines

Tue, 18 Aug - Fri, 21 Aug

8:07 p.m. - 11:43 a.m.

STL

YUL

14h 36m

1 stop

5:34 p.m. - 8:24 a.m.

YUL

STL

15h 50m

1 stop

C$ 670American Airlines

Tue, 18 Aug - Tue, 25 Aug

9:32 a.m. - 9:44 p.m.

STL

YUL

11h 12m

2 stops

5:34 p.m. - 8:24 a.m.

YUL

STL

15h 50m

1 stop

C$ 684American Airlines

Tue, 25 Aug - Fri, 28 Aug

6:40 a.m. - 11:58 a.m.

STL

YUL

4h 18m

1 stop

4:15 p.m. - 4:23 p.m.

YUL

STL

25h 08m

2 stops

C$ 735WestJet

Tue, 27 Oct - Tue, 27 Oct

4:50 p.m. - 11:43 a.m.

STL

YUL

17h 53m

1 stop

12:31 p.m. - 12:27 a.m.

YUL

STL

12h 56m

1 stop

C$ 738American Airlines

Mon, 7 Sep - Fri, 11 Sep

7:58 p.m. - 11:45 p.m.

STL

YUL

26h 47m

2 stops

2:46 p.m. - 11:58 p.m.

YUL

STL

10h 12m

1 stop

C$ 793Multiple Airlines

Mon, 31 Aug - Fri, 4 Sep

6:54 p.m. - 2:08 p.m.

STL

YQB

18h 14m

1 stop

3:00 p.m. - 12:02 p.m.

YQB

STL

22h 02m

1 stop

C$ 985United Airlines

Sat, 29 Aug - Tue, 1 Sep

8:55 a.m. - 3:56 p.m.

STL

YQB

6h 01m

1 stop

2:45 p.m. - 6:42 p.m.

YQB

STL

4h 57m

1 stop

C$ 997Air Canada

Sat, 29 Aug - Tue, 1 Sep

8:00 a.m. - 10:41 p.m.

STL

YQB

13h 41m

2 stops

3:00 p.m. - 8:39 a.m.

YQB

STL

18h 39m

1 stop

C$ 998United Airlines

Sat, 29 Aug - Tue, 1 Sep

8:55 a.m. - 7:41 p.m.

STL

YQB

9h 46m

2 stops

1:05 p.m. - 6:42 p.m.

YQB

STL

6h 37m

1 stop

C$ 1,009Air Canada

Sat, 29 Aug - Tue, 1 Sep

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United Airlines flights from St. Louis to Quebec

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

United Airlines

30 Sep

STL8:00 a.m.Lambert-St Louis

8h 30m

1 stop

YUL5:30 p.m.Montreal Pierre Elliott Trudeau Intl

7 Oct

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

14h 14m

1 stop

STL10:59 p.m.Lambert-St Louis

C$ 807

United Airlines

5 Sep

STL7:25 a.m.Lambert-St Louis

13h 01m

1 stop

YUL9:26 p.m.Montreal Pierre Elliott Trudeau Intl

12 Sep

YUL9:15 a.m.Montreal Pierre Elliott Trudeau Intl

14h 44m

2 stops

STL10:59 p.m.Lambert-St Louis

C$ 821

United Airlines

1 Oct

STL8:00 a.m.Lambert-St Louis

8h 30m

1 stop

YUL5:30 p.m.Montreal Pierre Elliott Trudeau Intl

7 Oct

YUL8:40 a.m.Montreal Pierre Elliott Trudeau Intl

15h 19m

1 stop

STL10:59 p.m.Lambert-St Louis

C$ 849

Delta flights from St. Louis to Quebec

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

Delta

5 Oct

STL5:30 p.m.Lambert-St Louis

14h 03m

1 stop

YUL8:33 a.m.Montreal Pierre Elliott Trudeau Intl

7 Oct

YUL7:50 p.m.Montreal Pierre Elliott Trudeau Intl

13h 40m

1 stop

STL8:30 a.m.Lambert-St Louis

C$ 845

Delta

30 Dec

STL6:00 a.m.Lambert-St Louis

10h 55m

1 stop

YUL5:55 p.m.Montreal Pierre Elliott Trudeau Intl

5 Jan

YUL7:45 p.m.Montreal Pierre Elliott Trudeau Intl

14h 07m

1 stop

STL8:52 a.m.Lambert-St Louis

C$ 902

Delta

26 Jul

STL9:26 a.m.Lambert-St Louis

8h 28m

1 stop

YUL6:54 p.m.Montreal Pierre Elliott Trudeau Intl

30 Jul

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

7h 13m

1 stop

STL3:43 p.m.Lambert-St Louis

C$ 1,526

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 18/8

4:54 p.m.-11:43 a.m.

1 stop17h 49m

Montreal Pierre Elliott Trudeau Intl

Fri 21/8

5:34 p.m.-8:24 a.m.

1 stop15h 50m

C$ 655

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 18/8

8:07 p.m.-11:43 a.m.

1 stop14h 36m

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

5:34 p.m.-8:24 a.m.

1 stop15h 50m

C$ 670

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 25/8

9:32 a.m.-9:44 p.m.

2 stops11h 12m

Montreal Pierre Elliott Trudeau Intl

Fri 28/8

5:34 p.m.-8:24 a.m.

1 stop15h 50m

C$ 684

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 27/10

6:40 a.m.-11:58 a.m.

1 stop4h 18m

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

4:15 p.m.-4:23 p.m.

2 stops25h 08m

C$ 735

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 7/9

4:50 p.m.-11:43 a.m.

1 stop17h 53m

Montreal Pierre Elliott Trudeau Intl

Fri 11/9

12:31 p.m.-12:27 a.m.

1 stop12h 56m

C$ 738

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 31/8

7:58 p.m.-11:45 p.m.

2 stops26h 47m

Montreal Pierre Elliott Trudeau Intl

Fri 4/9

2:46 p.m.-11:58 p.m.

1 stop10h 12m

C$ 793

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 29/8

6:54 p.m.-2:08 p.m.

1 stop18h 14m

Québec City

Tue 1/9

3:00 p.m.-12:02 p.m.

1 stop22h 02m

C$ 985

Quickest round-trip

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 29/8

8:55 a.m.-3:56 p.m.

1 stop6h 01m

Québec City

Tue 1/9

2:45 p.m.-6:42 p.m.

1 stop4h 57m

C$ 997

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 29/8

8:00 a.m.-10:41 p.m.

2 stops13h 41m

Québec City

Tue 1/9

3:00 p.m.-8:39 a.m.

1 stop18h 39m

C$ 998

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 29/8

8:55 a.m.-7:41 p.m.

2 stops9h 46m

Québec City

Tue 1/9

1:05 p.m.-6:42 p.m.

1 stop6h 37m

C$ 1,009

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 month to fly to Quebec?

In general, February is the cheapest month to fly from St. Louis to Quebec. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 712. If you are unable to visit Quebec during the month of February, then departing from St. Louis during the month August is also very affordable. Most momondo users find prices during this month for around C$ 801.

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.

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 31m
Direct flights	Every day
Airports in Quebec	76 airports

The fastest flight from St. Louis to Quebec takes 2h 31m

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 Canadair (Bombardier) Regional Jet 900 (35.79% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (32.63%), Airbus A220-300 (16.84%), and Airbus A330-300 (3.16%).

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.