How does KAYAK find such low prices on flights from Quebec to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Quebec to St. Louis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Quebec to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Quebec is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Quebec to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Quebec with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Quebec to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Quebec up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$211 CHEAP FLIGHTS from Quebec to St. Louis

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Flight Deals

Cheap Flights from Quebec to St. Louis

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Quebec to St. Louis

Tue, Oct 13 - Tue, Oct 20

6:00 am - 8:14 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

15h 14m2 stops Detroit Metropolitan Wayne County New York LaGuardia

6:05 pm - 8:32 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

13h 27m2 stops Detroit Metropolitan Wayne County New York LaGuardia

$487Delta

Fri, Oct 2 - Sat, Oct 31

10:30 am - 9:16 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 46m1 stop New York LaGuardia

5:21 pm - 12:25 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

18h 04m1 stop Chicago O'Hare Intl

$497American Airlines

Sat, Oct 3 - Sat, Oct 31

10:30 am - 8:44 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 14m2 stops New York LaGuardia Chicago O'Hare Intl

5:00 am - 4:52 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

10h 52m1 stop Chicago O'Hare Intl

$500American Airlines

Sat, Oct 3 - Sat, Oct 31

10:30 am - 8:44 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 14m2 stops New York LaGuardia Chicago O'Hare Intl

5:00 am - 4:52 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

10h 52m1 stop Chicago O'Hare Intl

$507American Airlines

Fri, Oct 23 - Tue, Nov 3

10:32 am - 8:52 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 20m1 stop New York LaGuardia

7:26 am - 9:26 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

13h 00m2 stops Chicago O'Hare Intl Philadelphia

$507American Airlines

Thu, Oct 29 - Thu, Jul 1

10:05 am - 3:23 pmYOW Ottawa-STL Lambert-St Louis

6h 18m1 stop Toronto Pearson Intl

1:25 pm - 7:45 pmSTL Lambert-St Louis-YOW Ottawa

5h 20m1 stop Montreal Pierre Elliott Trudeau Intl

$520Air Canada

Fri, Oct 23 - Tue, Nov 3

10:32 am - 8:52 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 20m1 stop New York LaGuardia

5:29 pm - 11:25 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

16h 56m1 stop Chicago O'Hare Intl

$521American Airlines

Thu, Oct 22 - Sun, Oct 25

6:00 am - 9:21 pmYOW Ottawa-STL Lambert-St Louis

16h 21m3 stops Washington, D.C. Dulles Intl Indianapolis Chicago O'Hare Intl

6:50 pm - 1:11 pmSTL Lambert-St Louis-YOW Ottawa

17h 21m2 stops Chicago O'Hare Intl Newark

$523United Airlines

Sat, Oct 3 - Sat, Oct 31

1:06 pm - 9:44 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

9h 38m1 stop Philadelphia

7:29 am - 4:52 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

8h 23m1 stop Chicago O'Hare Intl

$523American Airlines

Fri, Oct 30 - Mon, Nov 2

10:05 am - 3:23 pmYOW Ottawa-STL Lambert-St Louis

6h 18m1 stop Toronto Pearson Intl

4:05 pm - 11:55 pmSTL Lambert-St Louis-YOW Ottawa

6h 50m1 stop Toronto Pearson Intl

$531Air Canada

Recent last minute flight deals from Quebec to St. Louis

Mon, Sep 21 - Tue, Sep 29

5:57 pm - 11:38 pmYOW Ottawa-STL Lambert-St Louis

6h 41m1 stop Newark

9:30 am - 4:38 pmSTL Lambert-St Louis-YOW Ottawa

6h 08m1 stop Newark

$581United Airlines

Mon, Sep 21 - Tue, Sep 29

6:25 am - 12:02 pmYOW Ottawa-STL Lambert-St Louis

6h 37m1 stop Chicago O'Hare Intl

3:11 pm - 11:54 pmSTL Lambert-St Louis-YOW Ottawa

7h 43m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$581United Airlines

Mon, Sep 21 - Mon, Sep 28

6:25 am - 12:02 pmYOW Ottawa-STL Lambert-St Louis

6h 37m1 stop Chicago O'Hare Intl

9:30 am - 4:38 pmSTL Lambert-St Louis-YOW Ottawa

6h 08m1 stop Newark

$581United Airlines

Mon, Sep 21 - Fri, Oct 2

6:00 am - 10:59 pmYOW Ottawa-STL Lambert-St Louis

17h 59m3 stops Washington, D.C. Dulles Intl Indianapolis Chicago O'Hare Intl

8:00 am - 5:16 pmSTL Lambert-St Louis-YOW Ottawa

8h 16m1 stop Chicago O'Hare Intl

$581United Airlines

Mon, Sep 21 - Mon, Sep 28

5:20 pm - 9:36 pmYOW Ottawa-STL Lambert-St Louis

5h 16m1 stop Chicago O'Hare Intl

3:11 pm - 11:54 pmSTL Lambert-St Louis-YOW Ottawa

7h 43m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$581United Airlines

Mon, Sep 21 - Fri, Oct 2

5:57 pm - 11:38 pmYOW Ottawa-STL Lambert-St Louis

6h 41m1 stop Newark

8:00 am - 9:35 pmSTL Lambert-St Louis-YOW Ottawa

12h 35m1 stop Chicago O'Hare Intl

$581United Airlines

Mon, Sep 21 - Sat, Oct 3

5:57 pm - 11:38 pmYOW Ottawa-STL Lambert-St Louis

6h 41m1 stop Newark

8:00 am - 2:09 pmSTL Lambert-St Louis-YOW Ottawa

5h 09m1 stop Chicago O'Hare Intl

$581United Airlines

Mon, Sep 21 - Thu, Oct 1

5:57 pm - 11:38 pmYOW Ottawa-STL Lambert-St Louis

6h 41m1 stop Newark

9:04 am - 9:35 pmSTL Lambert-St Louis-YOW Ottawa

11h 31m1 stop Chicago O'Hare Intl

$581United Airlines

Sat, Sep 19 - Mon, Sep 21

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$688Air Canada

Mon, Sep 21 - Fri, Sep 25

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$1,788Air Canada

Recent direct flight deals from Quebec to St. Louis

Fri, Oct 16 - Wed, Oct 21

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$560Air Canada

Fri, Oct 16 - Sun, Oct 18

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$562Air Canada

Fri, Oct 2 - Fri, Oct 16

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$562Air Canada

Tue, Oct 13 - Tue, Oct 20

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$564Air Canada

Thu, Oct 15 - Mon, Oct 19

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$564Air Canada

Tue, Oct 13 - Tue, Oct 20

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$631United Airlines

Sat, Oct 17 - Wed, Oct 21

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$844Air Canada

Thu, Oct 8 - Tue, Oct 13

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$976Air Canada

Thu, Oct 8 - Tue, Oct 13

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$977Air Canada

Tue, Oct 13 - Tue, Oct 20

4:55 pm - 6:41 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mnonstop

12:10 pm - 3:41 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mnonstop

$1,028United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$211

Best time to beat the crowds but there is an average 30% increase in price.

Most popular time to fly with an average 21% increase in price.

Flight from Ottawa to St. Louis

How does KAYAK find such low prices on flights from Quebec to St. Louis?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Quebec to St. Louis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Quebec to St. Louis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Quebec is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Quebec to St. Louis?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Quebec with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Quebec to St. Louis?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Quebec up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.