$204 Find Cheap Flights from St. Louis to Quebec - Compare and Save

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 10/22. 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

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
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

Sat, Sep 12 - Sat, Sep 19
American Airlines Logo
7:27 am - 4:53 pm
STL
-
YUL
8h 26m
1 stop
American Airlines Logo
12:32 pm - 12:27 am
YUL
-
STL
12h 55m
1 stop
$479American Airlines
Mon, Oct 19 - Fri, Oct 23
American Airlines Logo
5:27 pm - 11:44 am
STL
-
YUL
17h 17m
1 stop
American Airlines Logo
5:34 pm - 10:51 am
YUL
-
STL
18h 17m
1 stop
$482American Airlines
Wed, Aug 26 - Wed, Sep 2
American Airlines Logo
8:07 pm - 11:43 am
STL
-
YUL
14h 36m
1 stop
American Airlines Logo
12:30 pm - 12:14 am
YUL
-
STL
12h 44m
1 stop
$482American Airlines
Mon, Aug 24 - Wed, Aug 26
Multiple Airlines Logo
6:17 pm - 2:08 pm
STL
-
YUL
18h 51m
2 stops
Multiple Airlines Logo
7:00 am - 11:46 am
YUL
-
STL
5h 46m
1 stop
$578Multiple Airlines
Tue, Aug 18 - Sat, Aug 22
Multiple Airlines Logo
6:25 pm - 11:30 pm
STL
-
YUL
4h 05m
1 stop
Multiple Airlines Logo
7:20 pm - 5:22 pm
YUL
-
STL
23h 02m
2 stops
$578Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
2:29 pm - 7:05 am
STL
-
YUL
15h 36m
2 stops
Multiple Airlines Logo
7:00 am - 11:16 pm
YUL
-
STL
17h 16m
1 stop
$579Multiple Airlines
Tue, Oct 13 - Sat, Oct 17
United Airlines Logo
8:00 am - 10:40 am
STL
-
YUL
25h 40m
1 stop
United Airlines Logo
9:45 am - 9:21 pm
YUL
-
STL
12h 36m
1 stop
$592United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
7:25 am - 1:59 pm
STL
-
YOW
5h 34m
1 stop
United Airlines Logo
10:37 am - 5:06 pm
YOW
-
STL
7h 29m
1 stop
$603United Airlines
Thu, Aug 20 - Sun, Aug 23
Air Canada Logo
12:10 pm - 3:42 pm
STL
-
YUL
2h 32mnonstop
Air Canada Logo
4:55 pm - 6:42 pm
YUL
-
STL
2h 47mnonstop
$621Air Canada
Thu, Aug 20 - Sun, Aug 23
Air Canada Logo
12:10 pm - 3:42 pm
STL
-
YUL
2h 32mnonstop
Air Canada Logo
4:40 pm - 8:24 pm
YUL
-
STL
4h 44m
1 stop
$627Air Canada
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.

How much is a round-trip flight from St. Louis to Quebec?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Quebec departing in September.

Flight prices are typical for this route right now.

Flights to Quebec from St. Louis usually cost between $300 and $746 in September.
The lowest price found in the past 5 days was $479 on American Airlines (Sep 12-Sep 19).

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 5 days was to Montreal, at $489 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 5 days was $489.

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 $1,002 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 $1,042.

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.

No, with an average price for the route of $707, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from St. Louis to Quebec?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Quebec, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Quebec is February, when tickets cost $506 (return) on average. On the other hand, the most expensive months are March and September, when the average cost of round-trip tickets is $779 and $733 respectively.

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 Thursday and avoiding Fridays for the best deals.

Good to know

Low season

February

Cheapest flight

$204
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from St. Louis to Montreal

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.
7.8
DeltaOverall score based on 8489 reviews
7.2Food
8.1Boarding
8.5Crew
7.8Comfort
7.8Entertainment
Airline reviews

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

2.0 MediocrePreeti, Jul 2026
MCI - BOS
Read more Delta reviews

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

Our flight was delayed by over 4 hours due to a maintenance issue. They announced a new plane was on the way. We were given a $12 food voucher ( airport food is quite expensive You can’t even by a water and a small snack for 12:00. 4 hours later we boarded and landed in Atlanta at 10:20 ish pm. Of course we missed our connection and we were given a hotel voucher and another food voucher ! We didn’t make it home until 11:00 the next day ! Unacceptable

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

Did not get a vegetarian option in 1st class and the video was not working.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

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

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Delay and keep changing gates. I have to run around from B to C then to E.

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

It’s a good airline. Polite service and good communication.

We ran into trouble in Montreal. Exited the plane and Air Canada was excellent getting everyone quickly to their destinations. I give Air Canada a 100%.

The flight was delayed and we would have missed our connection. We had to switch to a different airline in another airport

Multiple delays and flight cancellations meant that I arrived five and a half hours late at my destination. There was limited communication from the airline. The airline left my checked bag at my departure city and stopped tracking it almost immediately. The airline has made no apparent effort to return my bag despite filing a report, and has provided no communication or ability to check on the status of the bag.

Good but I don’t received my bags yet is been 5days still no update

Friendlier staff who are nice to the elderly who need assistance

Service was great. Flight was delayed an hour which made our connection very tight and stressful. But we fortunately made it.

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

I appreciate the fact that the flight took off and landed on time What I didn’t like they never offer a snack eg nuts/cookies/chips

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

Information on your arrival and departure airports