$154 Find Cheap Flights from St. Louis to Quebec

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Quebec departing on 7/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Quebec

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Quebec, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Quebec, as well as popular online travel agencies
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Flight Deals

Book Cheap St. Louis to Quebec Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Quebec that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Tue, Apr 28 - Tue, May 5
United Airlines Logo
7:45 am - 1:59 pm
STL
-
YOW
5h 14m
1 stop
United Airlines Logo
5:25 pm - 10:56 pm
YOW
-
STL
6h 31m
1 stop
$345United Airlines
Tue, Apr 28 - Tue, May 5
United Airlines Logo
7:45 am - 4:38 pm
STL
-
YOW
7h 53m
2 stops
United Airlines Logo
5:25 pm - 10:56 pm
YOW
-
STL
6h 31m
1 stop
$355United Airlines
Tue, Apr 28 - Tue, May 5
United Airlines Logo
9:10 am - 10:05 pm
STL
-
YOW
11h 55m
2 stops
United Airlines Logo
2:40 pm - 9:13 pm
YOW
-
STL
7h 33m
2 stops
$360United Airlines
Tue, Apr 28 - Tue, May 5
Lufthansa Logo
7:45 am - 1:59 pm
STL
-
YOW
5h 14m
1 stop
Lufthansa Logo
10:44 am - 4:39 pm
YOW
-
STL
6h 55m
1 stop
$365Lufthansa
Tue, Apr 28 - Tue, May 5
Air Canada Logo
7:45 am - 6:55 pm
STL
-
YOW
10h 10m
2 stops
Air Canada Logo
6:25 am - 9:13 pm
YOW
-
STL
15h 48m
1 stop
$382Air Canada
Wed, Apr 29 - Mon, May 4
American Airlines Logo
8:03 pm - 11:44 am
STL
-
YUL
14h 41m
1 stop
American Airlines Logo
12:30 pm - 11:46 pm
YUL
-
STL
12h 16m
1 stop
$383American Airlines
Sat, Apr 11 - Sat, Apr 18
American Airlines Logo
8:03 pm - 11:44 am
STL
-
YUL
14h 41m
1 stop
American Airlines Logo
12:30 pm - 11:46 pm
YUL
-
STL
12h 16m
1 stop
$401American Airlines
Thu, May 14 - Sat, May 16
Air Canada Logo
7:05 am - 1:05 pm
STL
-
YOW
5h 00m
1 stop
Air Canada Logo
4:00 pm - 8:04 pm
YOW
-
STL
5h 04m
1 stop
$426Air Canada
Wed, Apr 22 - Sun, Apr 26
Multiple Airlines Logo
8:23 pm - 12:30 am
STL
-
YUL
27h 07m
2 stops
Multiple Airlines Logo
6:45 pm - 8:30 am
YUL
-
STL
14h 45m
1 stop
$495Multiple Airlines
Thu, Apr 2 - Mon, Apr 6
Multiple Airlines Logo
4:54 pm - 12:30 am
STL
-
YUL
30h 36m
1 stop
Multiple Airlines Logo
8:00 am - 10:30 am
YUL
-
STL
27h 30m
2 stops
$513Multiple Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Quebec flights

Get data-powered insights and trends into flights from St. Louis to Quebec to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest St. Louis to Quebec flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Quebec from St. Louis found in the last 72 hours was to Montreal, at $639 round-trip. The most popular route is from St. Louis (STL) to Montreal Pierre Elliott Trudeau Intl Airport (YUL), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $639.

What is the cheapest time of day to fly to Quebec?

The average price for all round-trip flights from St. Louis to Quebec depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Quebec is generally in the morning, when round-trip flights cost $879 on average. The most expensive time of day to fly to Quebec is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,044.

Can I save money by flying with a layover from St. Louis to Quebec?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $669 on average.

What’s the cheapest day of the week to fly from St. Louis to Quebec?

The average price of all round-trip flights from St. Louis to Quebec clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Quebec on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from St. Louis to Quebec. For your return ticket, we recommend flying on a Tuesday and avoiding Thursdays for the best deals.

Good to know

Low seasonOctober
Cheapest flight$154
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from St. Louis to Ottawa

FAQs - booking Quebec flights

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

    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 St. Louis to Quebec.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to 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 St. Louis to Quebec?

    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 from St. Louis to Quebec with an airline and back with another airline.

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

    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 from St. Louis to Quebec up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from St. Louis to Quebec

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Quebec. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Quebec? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8287 reviews
7.2Food
7.8Entertainment
8.5Crew
7.9Comfort
8.1Boarding
Airline reviews

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

2.0 MediocreKyle, Mar 2026
DTW - ATL
Read more Delta reviews

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Entertainment kept turning itself off. Gave up on watching a movie.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not United Airlines' fault. It's ORL airport's fault.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The business steward was absolutely amazing! Smiles and kindness! Wish all AA flights are like this one!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

Not really sure I enjoyed the flight at all. The flight attendants seemed a little tired and rude at times. The snacks were lacking in taste and sustenance. The flight was incredibly turbulent for three plus hours and the pilot had to do a second pass to land at our final destination because he was coming in so fast. He must have taken a short cut and because of it we had to suffer the violent turbulence and the dropping down. It had to be one of if not the worse flights I have ever been on and have traveled vastly all over the world.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

Aging planer and NO wifi on a 14 hour day flight. Unless you are retired or don't need to work or be in touch with the world... The lack of Wifif really ruined the flight. And the old plane - really showing it's age, wasn't great

I checked a bag and there was only one agent to assist all customers with any issues.

Great setup on both flights except the last flight we got condensed dripping all over me in the last 20 mins of the flight

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Our biggest complaint about Air Canada is that if you don’t like your seat during check-in, there’s a fee to move elsewhere. On our flight from YUL to FFL, we were charged to change seats—just regular seats. What’s maddening is that the plane wasn’t even full; there were even a few people sleeping in the middle row sections (entire rows, completely empty), using them as beds. In my opinion, charging passengers for seat changes is a cash grab by Air Canada. They are definitely not the airline they were back in the day. I suppose they need to gouge the consumer now that they pay their attendants while on ground. One out of 10.

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

It was a smooth flight both in the sky and landing!

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

For the price, it was a really good experience. There was no entertainment on board, so I couldn't really rate this, and I didn't order a meal. I appreciated that there was a free glass of wine.

Very bad, flight was cancelled due to strike and staff was unable to rebook us

Everything you need to know for your flight from St. Louis to Quebec

Information on your arrival and departure airports