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Cheap flights from Quebec to St. Louis from C$ 255

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Quebec to St. Louis departing on 9/5. 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

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Find the cheapest flights from Quebec to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:25 p.m. - 9:13 p.m.
YOW
-
STL
4h 48m
1 stop
United Airlines Logo
7:45 a.m. - 9:35 p.m.
STL
-
YOW
12h 50m
1 stop
C$ 401United Airlines
Fri, 1 May - Tue, 5 May
United Airlines Logo
6:25 a.m. - 12:11 p.m.
YOW
-
STL
6h 46m
1 stop
United Airlines Logo
6:00 a.m. - 5:07 p.m.
STL
-
YOW
10h 07m
1 stop
C$ 424United Airlines
Thu, 4 Jun - Sun, 7 Jun
United Airlines Logo
5:25 p.m. - 9:13 p.m.
YOW
-
STL
4h 48m
1 stop
United Airlines Logo
6:30 a.m. - 5:07 p.m.
STL
-
YOW
9h 37m
1 stop
C$ 426United Airlines
Fri, 1 May - Tue, 5 May
United Airlines Logo
5:25 p.m. - 10:50 p.m.
YOW
-
STL
6h 25m
1 stop
United Airlines Logo
6:30 a.m. - 9:35 p.m.
STL
-
YOW
14h 05m
1 stop
C$ 427United Airlines
Fri, 1 May - Tue, 5 May
United Airlines Logo
5:25 p.m. - 10:50 p.m.
YOW
-
STL
6h 25m
1 stop
United Airlines Logo
9:21 a.m. - 9:35 p.m.
STL
-
YOW
11h 14m
1 stop
C$ 428United Airlines
Fri, 1 May - Tue, 5 May
Air Canada Logo
3:00 p.m. - 8:25 p.m.
YOW
-
STL
6h 25m
1 stop
Air Canada Logo
7:05 a.m. - 1:05 p.m.
STL
-
YOW
5h 00m
1 stop
C$ 453Air Canada
Sun, 10 May - Sun, 17 May
Delta Logo
12:25 p.m. - 11:13 p.m.
YOW
-
STL
11h 48m
2 stops
Delta Logo
6:48 a.m. - 5:35 p.m.
STL
-
YOW
9h 47m
2 stops
C$ 496Delta
Fri, 1 May - Tue, 5 May
Air Canada Logo
9:55 a.m. - 3:46 p.m.
YOW
-
STL
6h 51m
2 stops
Air Canada Logo
6:00 a.m. - 5:07 p.m.
STL
-
YOW
10h 07m
1 stop
C$ 498Air Canada
Thu, 4 Jun - Sun, 7 Jun
Delta Logo
7:41 p.m. - 12:05 p.m.
YUL
-
STL
17h 24m
1 stop
Delta Logo
6:05 a.m. - 6:51 p.m.
STL
-
YUL
11h 46m
1 stop
C$ 620Delta
Fri, 1 May - Tue, 5 May
American Airlines Logo
7:45 a.m. - 12:48 p.m.
YUL
-
STL
6h 03m
1 stop
American Airlines Logo
5:21 p.m. - 11:44 a.m.
STL
-
YUL
17h 23m
1 stop
C$ 652American Airlines
Sun, 10 May - Sat, 16 May

United Airlines flights from Quebec to St. Louis

Our best United Airlines deals on Quebec to St. Louis flight tickets
United Airlines
1 May
YOW5:25 p.m.Ottawa
4h 48m
1 stop
STL9:13 p.m.Lambert-St Louis
5 May
STL7:45 a.m.Lambert-St Louis
12h 50m
1 stop
YOW9:35 p.m.Ottawa
C$ 401
United Airlines
4 Jun
YOW5:50 p.m.Ottawa
6h 45m
1 stop
STL11:35 p.m.Lambert-St Louis
8 Jun
STL9:23 a.m.Lambert-St Louis
11h 12m
1 stop
YOW9:35 p.m.Ottawa
C$ 424
United Airlines
1 May
YOW5:25 p.m.Ottawa
6h 25m
1 stop
STL10:50 p.m.Lambert-St Louis
5 May
STL11:15 a.m.Lambert-St Louis
11h 39m
2 stops
YOW11:54 p.m.Ottawa
C$ 426

Delta flights from Quebec to St. Louis

Our best Delta deals on Quebec to St. Louis flight tickets
Delta
1 May
YOW12:25 p.m.Ottawa
11h 48m
2 stops
STL11:13 p.m.Lambert-St Louis
5 May
STL6:48 a.m.Lambert-St Louis
9h 47m
2 stops
YOW5:35 p.m.Ottawa
C$ 496
Delta
1 May
YOW12:25 p.m.Ottawa
11h 48m
2 stops
STL11:13 p.m.Lambert-St Louis
5 May
STL6:48 a.m.Lambert-St Louis
9h 47m
2 stops
YOW5:35 p.m.Ottawa
C$ 520
Delta
1 May
YOW12:25 p.m.Ottawa
11h 48m
2 stops
STL11:13 p.m.Lambert-St Louis
5 May
STL6:48 a.m.Lambert-St Louis
9h 47m
2 stops
YOW5:35 p.m.Ottawa
C$ 521

momondo Fare Finder

 
Customize your flight search to find flights from Quebec to St. Louis 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 96,600 searches. Data last updated 28 March 2026.
Use the filters below to find and compare flights from Quebec to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 1/5

5:25 p.m.-9:13 p.m.

1 stop4h 48m

Lambert-St Louis

Tue 5/5

7:45 a.m.-9:35 p.m.

1 stop12h 50m

C$ 401

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 4/6

6:25 a.m.-12:11 p.m.

1 stop6h 46m

Lambert-St Louis

Sun 7/6

6:00 a.m.-5:07 p.m.

1 stop10h 07m

C$ 424

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 1/5

5:25 p.m.-9:13 p.m.

1 stop4h 48m

Lambert-St Louis

Tue 5/5

6:30 a.m.-5:07 p.m.

1 stop9h 37m

C$ 426

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 1/5

5:25 p.m.-10:50 p.m.

1 stop6h 25m

Lambert-St Louis

Tue 5/5

6:30 a.m.-9:35 p.m.

1 stop14h 05m

C$ 427

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 1/5

5:25 p.m.-10:50 p.m.

1 stop6h 25m

Lambert-St Louis

Tue 5/5

9:21 a.m.-9:35 p.m.

1 stop11h 14m

C$ 428
Quickest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sun 10/5

3:00 p.m.-8:25 p.m.

1 stop6h 25m

Lambert-St Louis

Sun 17/5

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

1 stop5h 00m

C$ 453

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 1/5

12:25 p.m.-11:13 p.m.

2 stops11h 48m

Lambert-St Louis

Tue 5/5

6:48 a.m.-5:35 p.m.

2 stops9h 47m

C$ 496

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 4/6

9:55 a.m.-3:46 p.m.

2 stops6h 51m

Lambert-St Louis

Sun 7/6

6:00 a.m.-5:07 p.m.

1 stop10h 07m

C$ 498

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

7:41 p.m.-12:05 p.m.

1 stop17h 24m

Lambert-St Louis

Tue 5/5

6:05 a.m.-6:51 p.m.

1 stop11h 46m

C$ 620

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

7:45 a.m.-12:48 p.m.

1 stop6h 03m

Lambert-St Louis

Sat 16/5

5:21 p.m.-11:44 a.m.

1 stop17h 23m

C$ 652

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 St. Louis from

How to get the cheapest flight ticket from Quebec to St. Louis

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 St. Louis?

The month of July is, on average, the cheapest month to fly to St. Louis from Quebec, with most prices found around C$ 397. If you don’t want to visit St. Louis in July, then you should wait until September to fly from Quebec, when ticket prices are also cheap, with an average price of C$ 582.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Wednesday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 759. The most expensive day to fly to St. Louis is Saturday, with ticket prices averaging around C$ 928.

What is the cheapest Quebec to Lambert-St Louis flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to Lambert-St Louis for the best Quebec - Lambert-St Louis flight prices

What cabin class options are available on Quebec to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Quebec to Lambert-St Louis 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 Quebec to St. Louis flights?

You could potentially save up to 55% on your flight if you consider stops on a Quebec to St. Louis flight.

Cheap Quebec to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Quebec to St. Louis

Fastest flight time

2h 55m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from Quebec to St. Louis takes 2h 55m
Direct flights go from Quebec to St. Louis every day.
There is 1 airport in St. Louis. From Quebec there are direct flights to Lambert-St Louis (STL).
Search flight deals

  • When did momondo last update prices for flights from Quebec to Lambert-St Louis Airport?

    Prices for flights from Quebec to Lambert-St Louis Airport are updated daily.

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

  • How old do you have to be to fly from Quebec to Lambert-St Louis Airport?

    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 Quebec to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Quebec to St. Louis?

Best airlines flying from Quebec to St. Louis

Compare and see reviews for airlines that fly from Quebec to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 601Free CancellationRating
7.1
10,853 reviews
Search Air Canada flights

Why use momondo?

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

It is quick and easy to find Quebec to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Can I find flights from Quebec to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from Quebec on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Quebec to St. Louis?

Once you have performed a search for Quebec to St. Louis 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 Quebec to St. Louis right now. Can momondo alert me if prices change?

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

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