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.

$209 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

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

Mon, Dec 7 - Wed, Dec 9

12:08 pm - 12:02 amYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

12h 54m1 stop Chicago O'Hare Intl

8:24 pm - 11:28 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

14h 04m1 stop Chicago O'Hare Intl

$423American Airlines

Tue, Dec 8 - Mon, Dec 14

1:04 pm - 12:02 amYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 58m2 stops Philadelphia Chicago O'Hare Intl

8:24 pm - 11:28 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

14h 04m1 stop Chicago O'Hare Intl

$432American Airlines

Thu, Nov 19 - Mon, Nov 23

12:10 pm - 8:04 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

8h 54m1 stop Chicago O'Hare Intl

5:29 pm - 11:26 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

16h 57m1 stop Chicago O'Hare Intl

$447American Airlines

Tue, Dec 8 - Mon, Dec 14

4:40 pm - 11:17 amYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

19h 37m3 stops Toronto Island Newark Atlanta Hartsfield-Jackson

12:02 pm - 4:00 pmSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

26h 58m3 stops Atlanta Hartsfield-Jackson Newark Toronto Island

$478Multiple Airlines

Thu, Nov 19 - Sat, Nov 21

12:10 pm - 8:04 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

8h 54m1 stop Chicago O'Hare Intl

8:12 pm - 11:26 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

14h 14m1 stop Chicago O'Hare Intl

$488American Airlines

Wed, Nov 18 - Sun, Nov 22

12:10 pm - 10:15 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 05m1 stop Chicago O'Hare Intl

8:12 pm - 11:26 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

14h 14m1 stop Chicago O'Hare Intl

$488American Airlines

Mon, Dec 7 - Thu, Dec 10

12:08 pm - 7:58 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

8h 50m1 stop Chicago O'Hare Intl

8:24 pm - 11:28 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

14h 04m1 stop Chicago O'Hare Intl

$488American Airlines

Tue, Feb 9 - Fri, Feb 12

12:13 pm - 8:32 pmYUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

9h 19m1 stop Chicago O'Hare Intl

8:02 pm - 11:26 amSTL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

14h 24m1 stop Chicago O'Hare Intl

$499American Airlines

Tue, Jan 26 - Thu, Jan 28

10:40 am - 3:26 pmYQB Québec City-STL Lambert-St Louis

5h 46m1 stop Toronto Pearson Intl

4:05 pm - 11:16 pmSTL Lambert-St Louis-YQB Québec City

6h 11m1 stop Toronto Pearson Intl

$608Air Canada

Tue, Jan 19 - Sat, Jan 23

10:40 am - 3:26 pmYQB Québec City-STL Lambert-St Louis

5h 46m1 stop Toronto Pearson Intl

4:05 pm - 11:16 pmSTL Lambert-St Louis-YQB Québec City

6h 11m1 stop Toronto Pearson Intl

$609Air Canada

Useful Info

Low season	June
High season	November
Cheapest flight	$209

Best time to beat the crowds with an average 53% drop in price.

Most popular time to fly with an average 15% increase in price.

Flight from Montreal 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.