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Cheap flights from St. Louis to Quebec from $198

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Quebec departing on 7/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Quebec

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
12:10 pm - 7:45 pm
STL
-
YOW
6h 35m
1 stop
Air Canada Logo
2:35 pm - 6:42 pm
YOW
-
STL
5h 07m
1 stop
$390Air Canada
Tue, Jul 7 - Tue, Jul 14
Air Canada Logo
8:55 am - 3:10 pm
STL
-
YOW
5h 15m
1 stop
Air Canada Logo
3:10 pm - 6:41 pm
YOW
-
STL
4h 31m
1 stop
$463Air Canada
Sat, Sep 19 - Wed, Sep 23
United Airlines Logo
12:59 pm - 10:35 pm
STL
-
YOW
8h 36m
2 stops
United Airlines Logo
2:00 pm - 8:00 pm
YOW
-
STL
7h 00m
1 stop
$474United Airlines
Sat, Sep 19 - Wed, Sep 23
United Airlines Logo
9:23 am - 5:16 pm
STL
-
YOW
6h 53m
1 stop
United Airlines Logo
6:00 am - 3:38 pm
YOW
-
STL
10h 38m
3 stops
$477United Airlines
Sat, Sep 19 - Wed, Sep 23
United Airlines Logo
11:25 am - 5:07 pm
STL
-
YOW
4h 42m
1 stop
United Airlines Logo
5:20 pm - 9:26 pm
YOW
-
STL
5h 06m
1 stop
$488United Airlines
Tue, Jul 14 - Wed, Jul 15
United Airlines Logo
6:00 am - 2:17 pm
STL
-
YOW
7h 17m
2 stops
United Airlines Logo
3:10 pm - 11:44 pm
YOW
-
STL
9h 34m
1 stop
$497United Airlines
Tue, Jul 14 - Wed, Jul 15
United Airlines Logo
1:13 pm - 11:54 pm
STL
-
YOW
9h 41m
2 stops
United Airlines Logo
2:52 pm - 9:26 pm
YOW
-
STL
7h 34m
2 stops
$503United Airlines
Tue, Jul 14 - Wed, Jul 15
Multiple Airlines Logo
6:34 pm - 6:15 pm
STL
-
YUL
22h 41m
2 stops
Multiple Airlines Logo
6:47 pm - 11:53 pm
YUL
-
STL
6h 06m
1 stop
$522Multiple Airlines
Tue, Jul 21 - Tue, Jul 28
Multiple Airlines Logo
6:34 pm - 6:15 pm
STL
-
YUL
22h 41m
2 stops
Multiple Airlines Logo
6:47 pm - 11:53 pm
YUL
-
STL
6h 06m
1 stop
$523Multiple Airlines
Tue, Jul 21 - Tue, Jul 28
American Airlines Logo
5:48 pm - 3:30 pm
STL
-
YQB
20h 42m
1 stop
American Airlines Logo
4:12 pm - 11:32 pm
YQB
-
STL
8h 20m
1 stop
$624American Airlines
Fri, Jul 3 - Wed, Jul 8

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WestJet flights from St. Louis to Quebec

Our best WestJet deals on St. Louis to Quebec flight tickets
WestJet
Jul 21
STL3:58 pmLambert-St Louis
6h 54m
1 stop
YUL11:52 pmMontreal Pierre Elliott Trudeau Intl
Jul 28
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
6h 17m
1 stop
STL12:17 pmLambert-St Louis
$560
WestJet
Aug 4
STL6:25 pmLambert-St Louis
4h 05m
1 stop
YUL11:30 pmMontreal Pierre Elliott Trudeau Intl
Aug 13
YUL6:47 pmMontreal Pierre Elliott Trudeau Intl
6h 11m
1 stop
STL11:58 pmLambert-St Louis
$611
WestJet
Aug 18
STL5:34 pmLambert-St Louis
5h 06m
1 stop
YUL11:40 pmMontreal Pierre Elliott Trudeau Intl
Aug 21
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
4h 37m
1 stop
STL9:37 amLambert-St Louis
$612

American Airlines flights from St. Louis to Quebec

Our best American Airlines deals on St. Louis to Quebec flight tickets
American Airlines
Sep 16
STL4:37 pmLambert-St Louis
16h 12m
1 stop
YUL9:49 amMontreal Pierre Elliott Trudeau Intl
Sep 23
YUL12:31 pmMontreal Pierre Elliott Trudeau Intl
9h 13m
1 stop
STL8:44 pmLambert-St Louis
$544
American Airlines
Oct 6
STL3:03 pmLambert-St Louis
17h 47m
1 stop
YUL9:50 amMontreal Pierre Elliott Trudeau Intl
Oct 14
YUL10:30 amMontreal Pierre Elliott Trudeau Intl
13h 39m
1 stop
STL11:09 pmLambert-St Louis
$555
American Airlines
Aug 5
STL2:55 pmLambert-St Louis
17h 51m
1 stop
YUL9:46 amMontreal Pierre Elliott Trudeau Intl
Aug 12
YUL10:31 amMontreal Pierre Elliott Trudeau Intl
11h 13m
1 stop
STL8:44 pmLambert-St Louis
$559

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Quebec that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 11, 2026.
Use the filters below to find and compare flights from St. Louis to Quebec that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 7/7

12:10 pm-7:45 pm

1 stop6h 35m

Ottawa

Tue 7/14

2:35 pm-6:42 pm

1 stop5h 07m

$390
Quickest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 9/19

8:55 am-3:10 pm

1 stop5h 15m

Ottawa

Wed 9/23

3:10 pm-6:41 pm

1 stop4h 31m

$463

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 9/19

12:59 pm-10:35 pm

2 stops8h 36m

Ottawa

Wed 9/23

2:00 pm-8:00 pm

1 stop7h 00m

$474

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 9/19

9:23 am-5:16 pm

1 stop6h 53m

Ottawa

Wed 9/23

6:00 am-3:38 pm

3 stops10h 38m

$477

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 7/14

11:25 am-5:07 pm

1 stop4h 42m

Ottawa

Wed 7/15

5:20 pm-9:26 pm

1 stop5h 06m

$488

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 7/14

6:00 am-2:17 pm

2 stops7h 17m

Ottawa

Wed 7/15

3:10 pm-11:44 pm

1 stop9h 34m

$497

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 7/14

1:13 pm-11:54 pm

2 stops9h 41m

Ottawa

Wed 7/15

2:52 pm-9:26 pm

2 stops7h 34m

$503

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 7/21

6:34 pm-6:15 pm

2 stops22h 41m

Montreal Pierre Elliott Trudeau Intl

Tue 7/28

6:47 pm-11:53 pm

1 stop6h 06m

$522

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 7/21

6:34 pm-6:15 pm

2 stops22h 41m

Montreal Pierre Elliott Trudeau Intl

Tue 7/28

6:47 pm-11:53 pm

1 stop6h 06m

$523

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 7/3

5:48 pm-3:30 pm

1 stop20h 42m

Québec City

Wed 7/8

4:12 pm-11:32 pm

1 stop8h 20m

$624

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Quebec from

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

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 May is also cheap. Prices for this month can be found on momondo for an average of $300.

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

Our data shows that Wednesday is the least expensive day to fly to Quebec. Tickets to fly out on this day can be as low as $882. 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 $1,192.

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

The cheapest time of day to fly to Quebec is at noon when flights can be purchased for as low as $986. Try not to purchase tickets in the morning because they tend to be around $1,013. 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 3 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?

No. A direct flight is the cheapest option for a flight between St. Louis to Quebec.

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

$403

Fastest flight time

2h 31m

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 $403. The best round-trip flight deal from St. Louis to Quebec found on momondo in the last 72 hours is $1,001.
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 were last updated today.

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

  • 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?

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 CanadaPriceFrom $257Free CancellationRating
7.1
11,158 reviews
Search Air Canada flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,809 reviews
Search United Airlines flights
American AirlinesPriceFrom $348Free CancellationRating
7.1
11,643 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.

An easier way to manage your Quebec trip

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Sat 7/11
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