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Cheap flights from Quebec to St. Louis from C$ 319

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 8/8. 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 Quebec to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:10 p.m. - 9:51 p.m.
YOW
-
STL
7h 41m
1 stop
United Airlines Logo
1:08 p.m. - 9:56 p.m.
STL
-
YOW
7h 48m
2 stops
C$ 535United Airlines
Sat, 31 Oct - Wed, 4 Nov
United Airlines Logo
2:00 p.m. - 9:13 p.m.
YOW
-
STL
8h 13m
2 stops
United Airlines Logo
5:00 a.m. - 2:09 p.m.
STL
-
YOW
8h 09m
1 stop
C$ 536United Airlines
Tue, 27 Oct - Tue, 3 Nov
Multiple Airlines Logo
7:00 a.m. - 11:59 p.m.
YOW
-
STL
17h 59m
1 stop
Multiple Airlines Logo
4:09 p.m. - 9:20 p.m.
STL
-
YOW
28h 11m
2 stops
C$ 559Multiple Airlines
Sat, 18 Jul - Wed, 22 Jul
Multiple Airlines Logo
7:00 a.m. - 11:59 p.m.
YOW
-
STL
17h 59m
1 stop
Multiple Airlines Logo
4:57 p.m. - 5:03 p.m.
STL
-
YOW
23h 06m
2 stops
C$ 569Multiple Airlines
Sat, 18 Jul - Mon, 27 Jul
Air Canada Logo
10:05 a.m. - 3:26 p.m.
YOW
-
STL
6h 21m
1 stop
Air Canada Logo
4:05 p.m. - 1:40 a.m.
STL
-
YOW
8h 35m
1 stop
C$ 600Air Canada
Tue, 27 Oct - Fri, 30 Oct
Air Canada Logo
9:55 a.m. - 9:13 p.m.
YOW
-
STL
12h 18m
2 stops
Air Canada Logo
1:08 p.m. - 9:56 p.m.
STL
-
YOW
7h 48m
2 stops
C$ 619Air Canada
Sat, 31 Oct - Wed, 4 Nov
American Airlines Logo
12:30 p.m. - 12:14 a.m.
YUL
-
STL
12h 44m
1 stop
American Airlines Logo
7:21 a.m. - 4:53 p.m.
STL
-
YUL
8h 32m
1 stop
C$ 685American Airlines
Wed, 2 Sep - Mon, 28 Sep
Delta Logo
7:00 a.m. - 12:56 p.m.
YUL
-
STL
6h 56m
1 stop
Delta Logo
7:20 a.m. - 5:03 p.m.
STL
-
YUL
8h 43m
1 stop
C$ 697Delta
Thu, 15 Oct - Mon, 19 Oct
Delta Logo
7:00 a.m. - 12:56 p.m.
YUL
-
STL
6h 56m
1 stop
Delta Logo
7:20 a.m. - 5:03 p.m.
STL
-
YUL
8h 43m
1 stop
C$ 698Delta
Thu, 15 Oct - Mon, 19 Oct
American Airlines Logo
3:56 p.m. - 10:52 a.m.
YQB
-
STL
19h 56m
1 stop
American Airlines Logo
8:07 p.m. - 3:16 p.m.
STL
-
YQB
18h 09m
2 stops
C$ 761American Airlines
Mon, 31 Aug - Wed, 2 Sep

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Delta flights from Quebec to St. Louis

Our best Delta deals on Quebec to St. Louis flight tickets
Delta
21 Jul
YOW6:55 a.m.Ottawa
7h 10m
2 stops
STL1:05 p.m.Lambert-St Louis
25 Jul
STL6:30 a.m.Lambert-St Louis
10h 05m
2 stops
YOW5:35 p.m.Ottawa
C$ 664
Delta
26 Oct
YOW5:40 a.m.Ottawa
12h 31m
2 stops
STL5:11 p.m.Lambert-St Louis
1 Nov
STL12:00 p.m.Lambert-St Louis
11h 42m
2 stops
YOW12:42 a.m.Ottawa
C$ 690
Delta
15 Oct
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
6h 56m
1 stop
STL12:56 p.m.Lambert-St Louis
19 Oct
STL7:20 a.m.Lambert-St Louis
8h 43m
1 stop
YUL5:03 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 697

American Airlines flights from Quebec to St. Louis

Our best American Airlines deals on Quebec to St. Louis flight tickets
American Airlines
2 Sep
YUL12:30 p.m.Montreal Pierre Elliott Trudeau Intl
12h 44m
1 stop
STL12:14 a.m.Lambert-St Louis
28 Sep
STL7:21 a.m.Lambert-St Louis
8h 32m
1 stop
YUL4:53 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 685
American Airlines
3 Aug
YUL7:51 a.m.Montreal Pierre Elliott Trudeau Intl
16h 41m
1 stop
STL11:32 p.m.Lambert-St Louis
10 Aug
STL8:07 p.m.Lambert-St Louis
14h 36m
1 stop
YUL11:43 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 742
American Airlines
31 Aug
YQB3:56 p.m.Québec City
19h 56m
1 stop
STL10:52 a.m.Lambert-St Louis
2 Sep
STL8:07 p.m.Lambert-St Louis
18h 09m
2 stops
YQB3:16 p.m.Québec City
C$ 761

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 29 June 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

Sat 31/10

3:10 p.m.-9:51 p.m.

1 stop7h 41m

Lambert-St Louis

Wed 4/11

1:08 p.m.-9:56 p.m.

2 stops7h 48m

C$ 535

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 27/10

2:00 p.m.-9:13 p.m.

2 stops8h 13m

Lambert-St Louis

Tue 3/11

5:00 a.m.-2:09 p.m.

1 stop8h 09m

C$ 536

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 18/7

7:00 a.m.-11:59 p.m.

1 stop17h 59m

Lambert-St Louis

Wed 22/7

4:09 p.m.-9:20 p.m.

2 stops28h 11m

C$ 559

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 18/7

7:00 a.m.-11:59 p.m.

1 stop17h 59m

Lambert-St Louis

Mon 27/7

4:57 p.m.-5:03 p.m.

2 stops23h 06m

C$ 569
Quickest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 27/10

10:05 a.m.-3:26 p.m.

1 stop6h 21m

Lambert-St Louis

Fri 30/10

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

1 stop8h 35m

C$ 600

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 31/10

9:55 a.m.-9:13 p.m.

2 stops12h 18m

Lambert-St Louis

Wed 4/11

1:08 p.m.-9:56 p.m.

2 stops7h 48m

C$ 619

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

12:30 p.m.-12:14 a.m.

1 stop12h 44m

Lambert-St Louis

Mon 28/9

7:21 a.m.-4:53 p.m.

1 stop8h 32m

C$ 685

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 15/10

7:00 a.m.-12:56 p.m.

1 stop6h 56m

Lambert-St Louis

Mon 19/10

7:20 a.m.-5:03 p.m.

1 stop8h 43m

C$ 697

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 15/10

7:00 a.m.-12:56 p.m.

1 stop6h 56m

Lambert-St Louis

Mon 19/10

7:20 a.m.-5:03 p.m.

1 stop8h 43m

C$ 698

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Mon 31/8

3:56 p.m.-10:52 a.m.

1 stop19h 56m

Lambert-St Louis

Wed 2/9

8:07 p.m.-3:16 p.m.

2 stops18h 09m

C$ 761

Flights are sorted by cheapest round-trip flights 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 June is, on average, the cheapest month to fly to St. Louis from Quebec, with most prices found around C$ 352. If you don’t want to visit St. Louis in June, then you should wait until December to fly from Quebec, when ticket prices are also cheap, with an average price of C$ 393.

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 St. Louis flights?

There are 2 cabin classes available to choose from on Quebec to 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 3% 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 46m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from Quebec to St. Louis takes 2h 46m
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

Frequently asked questions about flying from Quebec to St. Louis

  • 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$ 572Free CancellationRating
7.1
11,270 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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