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Cheap flights from St. Louis to Quebec from $156

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 1/16. 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
0 bags

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Find the cheapest flights from St. Louis to Quebec

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:42 pm - 5:13 pm
STL
-
YOW
22h 31m1 stop
Multiple Airlines Logo
9:30 am - 11:33 pm
YOW
-
STL
15h 03m1 stop
$306Multiple Airlines
Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
5:42 pm - 12:25 am
STL
-
YOW
29h 43m2 stops
Multiple Airlines Logo
9:30 am - 11:33 pm
YOW
-
STL
15h 03m1 stop
$328Multiple Airlines
Wed, Jan 21 - Wed, Jan 28
Air Canada Logo
4:05 pm - 11:08 pm
STL
-
YOW
6h 03m1 stop
Air Canada Logo
9:15 am - 3:29 pm
YOW
-
STL
7h 14m1 stop
$361Air Canada
Sun, Jan 18 - Wed, Jan 21
United Airlines Logo
8:05 am - 5:12 pm
STL
-
YOW
8h 07m1 stop
United Airlines Logo
3:10 pm - 10:58 pm
YOW
-
STL
8h 48m2 stops
$372United Airlines
Sun, Jan 18 - Wed, Jan 21
United Airlines Logo
11:20 am - 11:54 pm
STL
-
YOW
11h 34m2 stops
United Airlines Logo
2:15 pm - 9:13 pm
YOW
-
STL
7h 58m2 stops
$378United Airlines
Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
10:06 am - 12:30 am
STL
-
YUL
13h 24m1 stop
Multiple Airlines Logo
8:00 am - 11:33 pm
YUL
-
STL
40h 33m2 stops
$387Multiple Airlines
Sun, Jan 18 - Wed, Jan 28
Air Canada Logo
7:41 am - 4:23 pm
STL
-
YOW
7h 42m2 stops
Air Canada Logo
10:50 am - 9:00 pm
YOW
-
STL
11h 10m2 stops
$455Air Canada
Wed, Mar 4 - Wed, Mar 18
Air Canada Logo
4:49 pm - 1:38 am
STL
-
YOW
7h 49m2 stops
Air Canada Logo
5:45 am - 2:30 pm
YOW
-
STL
9h 45m2 stops
$458Air Canada
Sun, Jan 18 - Wed, Jan 21
American Airlines Logo
6:00 am - 3:08 pm
STL
-
YUL
8h 08m1 stop
American Airlines Logo
7:30 am - 6:14 pm
YUL
-
STL
11h 44m2 stops
$513American Airlines
Thu, Jan 22 - Thu, Jan 29
American Airlines Logo
6:44 pm - 3:08 pm
STL
-
YUL
19h 24m1 stop
American Airlines Logo
3:50 pm - 10:20 am
YUL
-
STL
19h 30m1 stop
$525American Airlines
Sun, Jan 18 - Wed, Jan 28

American Airlines flights from St. Louis to Quebec

Our best American Airlines deals on St. Louis to Quebec flight tickets
American Airlines
Jan 22
STL6:00 amLambert-St Louis
8h 08m
1 stop
YUL3:08 pmMontreal Pierre Elliott Trudeau Intl
Jan 29
YUL7:30 amMontreal Pierre Elliott Trudeau Intl
11h 44m
2 stops
STL6:14 pmLambert-St Louis
$513
Find similar
American Airlines
Jan 18
STL6:44 pmLambert-St Louis
19h 24m
1 stop
YUL3:08 pmMontreal Pierre Elliott Trudeau Intl
Jan 28
YUL3:50 pmMontreal Pierre Elliott Trudeau Intl
19h 30m
1 stop
STL10:20 amLambert-St Louis
$525
Find similar
American Airlines
Jan 22
STL6:00 amLambert-St Louis
8h 08m
1 stop
YUL3:08 pmMontreal Pierre Elliott Trudeau Intl
Jan 29
YUL3:50 pmMontreal Pierre Elliott Trudeau Intl
19h 30m
1 stop
STL10:20 amLambert-St Louis
$576
Find similar

Delta flights from St. Louis to Quebec

Our best Delta deals on St. Louis to Quebec flight tickets
Delta
Dec 31
STL5:13 pmLambert-St Louis
5h 46m
1 stop
YUL11:59 pmMontreal Pierre Elliott Trudeau Intl
Jan 5
YUL7:30 pmMontreal Pierre Elliott Trudeau Intl
18h 03m
1 stop
STL12:33 pmLambert-St Louis
$641
Find similar
Delta
Jan 2
STL5:59 pmLambert-St Louis
4h 20m
1 stop
YUL11:19 pmMontreal Pierre Elliott Trudeau Intl
Jan 5
YUL7:30 pmMontreal Pierre Elliott Trudeau Intl
18h 03m
1 stop
STL12:33 pmLambert-St Louis
$650
Find similar
Delta
Mar 13
STL6:10 amLambert-St Louis
6h 27m
1 stop
YUL1:37 pmMontreal Pierre Elliott Trudeau Intl
Mar 16
YUL4:45 pmMontreal Pierre Elliott Trudeau Intl
4h 56m
1 stop
STL8:41 pmLambert-St Louis
$662
Find similar

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 December 8, 2025.
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

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 1/21

5:42 pm-5:13 pm

1 stop22h 31m

Ottawa

Wed 1/28

9:30 am-11:33 pm

1 stop15h 03m

$306

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 1/21

5:42 pm-12:25 am

2 stops29h 43m

Ottawa

Wed 1/28

9:30 am-11:33 pm

1 stop15h 03m

$328

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sun 1/18

4:05 pm-11:08 pm

1 stop6h 03m

Ottawa

Wed 1/21

9:15 am-3:29 pm

1 stop7h 14m

$361

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sun 1/18

8:05 am-5:12 pm

1 stop8h 07m

Ottawa

Wed 1/21

3:10 pm-10:58 pm

2 stops8h 48m

$372

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 1/21

11:20 am-11:54 pm

2 stops11h 34m

Ottawa

Wed 1/28

2:15 pm-9:13 pm

2 stops7h 58m

$378

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sun 1/18

10:06 am-12:30 am

1 stop13h 24m

Montreal Pierre Elliott Trudeau Intl

Wed 1/28

8:00 am-11:33 pm

2 stops40h 33m

$387

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 3/4

7:41 am-4:23 pm

2 stops7h 42m

Ottawa

Wed 3/18

10:50 am-9:00 pm

2 stops11h 10m

$455

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sun 1/18

4:49 pm-1:38 am

2 stops7h 49m

Ottawa

Wed 1/21

5:45 am-2:30 pm

2 stops9h 45m

$458

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 1/22

6:00 am-3:08 pm

1 stop8h 08m

Montreal Pierre Elliott Trudeau Intl

Thu 1/29

7:30 am-6:14 pm

2 stops11h 44m

$513

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sun 1/18

6:44 pm-3:08 pm

1 stop19h 24m

Montreal Pierre Elliott Trudeau Intl

Wed 1/28

3:50 pm-10:20 am

1 stop19h 30m

$525

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $1,028. 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 in the evening when flights can be purchased for as low as $266. Try not to purchase tickets at noon because they tend to be around $1,093. 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?

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

$449

Fastest flight time

2h 35m

Direct flights

Sat

Airports in Quebec

1 airport
The best one-way flight to Quebec from St. Louis in the past 72 hours is $449. The best round-trip flight deal from St. Louis to Quebec found on momondo in the last 72 hours is $776.
The fastest flight from St. Louis to Quebec takes 2h 35m
Direct flights go from St. Louis to Quebec on Saturday. There are no airlines offering direct flights.
There is 1 airport near Quebec: 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?

  • 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
DeltaPriceFrom $212Free CancellationRating
7.9
8,010 reviews
Search Delta flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,078 reviews
Search United Airlines flights
Air CanadaPriceFrom $318Free CancellationRating
7.1
10,512 reviews
Search Air Canada flights
American AirlinesPriceFrom $348Free CancellationRating
7.2
11,044 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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