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YYC - STL

C$ 323 Find cheap flights from Calgary to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Calgary to St. Louis departing on 25/5. 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
0 bags
Tue 18/6
Tue 25/6

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Calgary to St. Louis, 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 Calgary to St. Louis, as well as popular online travel agencies
In the last 7 days, travellers have searched 41,904,688 times on KAYAK, and here is why:

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Cheap flight deals from Calgary to St. Louis (YYC-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Calgary to St. Louis 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 and deals for you by selecting your travel dates.
Choose your dates
8:00 p.m. - 10:47 a.m.YYC-STL
13h 47m2 stops
6:45 a.m. - 6:25 p.m.STL-YYC
12h 40m1 stop
C$ 485WestJet
Find Deal
Wed, 28 Aug - Sun, 1 Sep
9:45 a.m. - 9:17 p.m.YYC-STL
10h 32m1 stop
6:45 a.m. - 6:25 p.m.STL-YYC
12h 40m1 stop
C$ 494WestJet
Find Deal
Wed, 28 Aug - Sun, 1 Sep
12:30 a.m. - 10:43 a.m.YYC-STL
9h 13m1 stop
2:20 p.m. - 11:21 p.m.STL-YYC
10h 01m1 stop
C$ 501Delta
Find Deal
Mon, 9 Sep - Wed, 11 Sep
12:20 a.m. - 12:58 p.m.YYC-STL
11h 38m2 stops
6:45 a.m. - 6:25 p.m.STL-YYC
12h 40m1 stop
C$ 508WestJet
Find Deal
Tue, 27 Aug - Sun, 1 Sep
6:00 a.m. - 3:20 p.m.YYC-STL
8h 20m1 stop
10:10 a.m. - 10:44 p.m.STL-YYC
13h 34m1 stop
C$ 524Air Canada
Find Deal
Tue, 10 Sep - Wed, 11 Sep
12:20 a.m. - 12:58 p.m.YYC-STL
11h 38m2 stops
2:05 p.m. - 12:40 a.m.STL-YYC
11h 35m2 stops
C$ 525WestJet
Find Deal
Tue, 27 Aug - Sun, 1 Sep
7:30 p.m. - 1:05 p.m.YYC-STL
16h 35m1 stop
8:35 p.m. - 8:40 p.m.STL-YYC
25h 05m2 stops
C$ 535
Find Deal
Tue, 4 Jun - Fri, 28 Jun
12:05 p.m. - 1:05 p.m.YYC-STL
24h 00m2 stops
8:35 p.m. - 8:40 p.m.STL-YYC
25h 05m2 stops
C$ 581
Find Deal
Tue, 4 Jun - Fri, 28 Jun
6:25 a.m. - 8:49 p.m.YYC-STL
13h 24m1 stop
1:45 p.m. - 9:43 p.m.STL-YYC
8h 58m1 stop
C$ 619Air Canada
Find Deal
Tue, 4 Jun - Fri, 28 Jun
12:30 a.m. - 10:43 a.m.YYC-STL
9h 13m1 stop
11:51 a.m. - 8:10 p.m.STL-YYC
9h 19m2 stops
C$ 791Delta
Find Deal
Mon, 9 Sep - Wed, 11 Sep

Flights from Calgary to St. Louis - Travel Insights & Trends

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Calgary to St. Louis, 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 Calgary to St. Louis is March, where tickets cost C$ 448 on average. On the other hand, the most expensive months are January and June, where the average cost of tickets is C$ 806 and C$ 806 respectively.

How far in advance should I book a flight from Calgary to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Calgary to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Calgary to St. Louis, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 44 days before departure.

Good to know

Low season

September

High season

November

Cheapest flight

C$ 323
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Calgary to St. Louis

When to book flights from Calgary to St. Louis

Are your dates flexible? Find out the best times to travel from Calgary to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Calgary to St. Louis

  • What is the cheapest flight from Calgary to St. Louis?

    In the last 3 days, the lowest price for a flight from Calgary to St. Louis was C$ 237 for a one-way ticket and C$ 356 for a round-trip.

  • Which airports will I be using when flying from Calgary to St. Louis?

    Calgary airport is called Calgary and the only airport in St. Louis is Lambert-St Louis.

  • Which aircraft models fly most regularly from Calgary to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Calgary to St. Louis?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Calgary and St. Louis, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Calgary to St. Louis, WestJet or Air Canada?

    The two airlines most popular with KAYAK users for flights from Calgary to St. Louis are WestJet and Air Canada. With an average price for the route of C$ 589 and an overall rating of 7.5, WestJet is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 549 and an overall rating of 7.0.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Calgary 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 Calgary 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 Calgary with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Calgary 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 Calgary up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Calgary to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Calgary to St. Louis. 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 Calgary to St. Louis? 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.
8.8
Endeavor AirlinesOverall score based on 4 reviews
9.5Comfort
7.0Entertainment
9.5Boarding
8.5Food
9.5Crew
Airline reviews
Pros: "seat space was great and I was lucky enough to have medium size passenger next to me :-)"
Cons: "Can't really think of anything . . . my expectations were exceeded"
8.6 ExcellentIllan, Jun. 2019YYZ - JFK
Read more about Endeavor Airlines reviews
Pros: "seat space was great and I was lucky enough to have medium size passenger next to me :-)"
Cons: "Can't really think of anything . . . my expectations were exceeded"

Our trip was booked to be 2 hours after arriving in Calgary but it was changed until the next morning forcing us to stay overnight in Calgary with no compensation

Was the longest flight I have ever taken to Orlando. Not Westjet’s fault necessarily. There was a traffic issue in Orlando. We sat in the airplane for about 2 hrs before leaving Calgary on a 5 hour flight was just a little long to be stuck in the plane. Once we arrived in Orlando we were stuck in traffic on the ground for another 30min. I guess maybe the flight could be delayed so boarding would have been later so we wouldn’t have to have the discomfort of being on the plane so long.

I like WJ but I don’t like traveling anymore

Good flight. No I’m seat entertainment. But my phone worked just fine on the west jet app.

4 hour delay, lost our bags, staff was loud and it was an overnight flight

We were late boarding, but it all worked out. So, no problem.

It was good but not comfortable seat with the long legged persons.

No problems here. WestJet does a good job, even on their short haul flights

Boarding was fine, but then we were delayed a while due to some baggage issues, then de-icing.

Tried to reserves seats and WestJet My Trip shows not available until 24 hours before the flight. When check-in was finally available and I tried to get seats again I was not able to get to select seats for me and my wife together. All in all, was not able to select seats together on Kiwi, paid extra for seats on Westjet and still did not got seats together, not pleasant for such a long flight and with my wife not very good with flying, disappointed on the way the system works with regarding to seats reservations, even with paying extra for them.

We enjoyed that we boarded and took off on time. We didn’t like that our connection flight was a twenty minute walk through the airport with only one hour in between flights.

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

Two flights,both poor. No entertainment. Cramped and uncomfortable seats, little space, the rest was OK. Staff were acceptable good.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

The crew was doing their best on an old plane needing updating. Chairs that creaked and wouldn’t stay in position. My tray table was unusable as was on-board entertainment due the audio needing usb earphones (that were not provided). Prior to boarding in Toronto and despite being scheduled for a wheelchair and assistance, we were dropped off by clubcar without a wheelchair which I found myself by a gate. Due to no boarding gate assigned at that time we waited and when it was, it subsequently was moved from 64 to 95. No help could be found so I pushed my husband’s chair to that furthest gate in the airport at the highest speed possible for a 73 year old. And by that I mean I ran. It was a very stressful experience.

Wifi wasn't working on one of the UA flights after boarding.

Leg room was lacking. Legs crammed into seat in front.

T hey did a great job. Flight was on time .

the plane was old. the wifi didn’t work. the entertainment was boring and dated. the charging ports were impossible to find. i was mostly ignored by flight attendants that had no problem speaking to the man beside me. i got two drinks the entire time i was on the plane.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

Seriously need to improve the time schedule and the plans

Air Canada cancelled my prepaid/prebooked seat selection and changed my seats without any options.

It was overall above average experience. If there is only one thing i could complain about was the lack of wifi availability on my flight from Vancouver to San Francisco

Not much food available, not able to choose seats to be near each other, tv did not work

I think Air Canada is the only airline I've flown where they don't give you at least a free cookie.

All but one of four were on time. One was delayed for an hour

Got the email to check in but when I tried to check in it said "cannot connect to server", so checked in at the desk.

It took 5 hour to get a crew to D Ice the plan. We had to sit on the runway for 5 hrs. in Calgary. It snows most of the winter. No proactive plan. In addition, after 3 calls to customer service they couldn't figure out how to have my wife and myself sit together on her birthday weekend. Everybody kept passing the buck. No decision from customer service, luggage drop off or check in team. The experience was a complete mess! I don't think we'll ever fly on this airline again.

my flight from Toronto to Chicago was horrible. we tried to land 3 times, couldn't. they went to Milwaukee & sat on the plane/runway for another 1.5 hours. then they flew us back to Toronto. we had to stay overnight. the communication was bad. just told us to wait for an email update. no credit, no voucher for my additional night in a hotel. nothing. I will not fly air Canada again.

The wifi I paid for did not work. The seats are tight.

Flight delayed an hour due to plane maintenance issues after getting in line to board. Issue was plane galley ovens which eliminated hot meals for overseas flight. Cold selections were limited due to availability. Drink and meal service (already an hour delayed) was very slow. Upon arrival in Nashville, had to sit at gate for about 15 minutes before disembarking with no explanation. Local police then boarded plane as we were disembarking so maybe that was the issue.

Leg space was not enough. The meal was not satisfactory.

Boarding good. Seats uncomfortable when lie flat. Food was awful. Tasted stale and chicken was dry. No live tv or flight map. Had to pay for internet.

Poor technical details on this plane. 1) There was no WiFi on an 8 hour long-haul flight. So no work could be done. That's below the standard expected for airlines these days. 2) The power outlet at my seat was busted and not working. 3) The headphone jack was loose and I had to keep adjusting my headphones to get good reception, or when it slipped out. - The flight was delayed to due mechanics. Sometimes this can't be avoided, I understand, and it's a big inconvenience to arrive that much later when traveling across time zones (then arriving at 4am from the prior time zone). - Also unique to this flight, the northern lights were visible on the right side of the aircraft, but I only found out after we landed (b/c again no wifi). I understand there are considerations about people being out of their seats to look, but I feel extremely disappointed and resentful that I wasn't told so that I could have a chance to look at this probably once-in-a-lifetime cosmic event from a view in the sky. - Flight crew was otherwise friendly and helpful.

I would have preferred something lighter for the second meal. Maybe a small sandwich .

They cancelled our flight the morning of departure at 4:30am.

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

Book cheap flights from Calgary to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Calgary to St. Louis found on KAYAK in the last 72 hours.
25/5Sat
2 stops
16h 55mYYC-STL
C$ 323
25/5Sat
1 stop
13h 43mYYC-STL
C$ 342
25/5Sat
3 stops
24h 25mYYC-STL
C$ 361
24/5Fri
2 stops
13h 20mYYC-STL
C$ 367
24/5Fri
1 stopAir Canada
13h 21mYYC-STL
C$ 392

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Last minute flights from Calgary to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Calgary to St. Louis that are departing in the next 10 days.
24/5Fri
multi-stop
21h 25mYYC-STL
2/6Sun
multi-stop
9h 07mSTL-YYC
C$ 614
24/5Fri
multi-stop
21h 25mYYC-STL
1/6Sat
multi-stop
9h 07mSTL-YYC
C$ 630
23/5Thu
multi-stopWestJet
22h 10mYYC-STL
31/5Fri
multi-stopWestJet
13h 01mSTL-YYC
C$ 641
24/5Fri
multi-stopAir Canada
8h 21mYYC-STL
27/5Mon
multi-stopAir Canada
6h 07mSTL-YYC
C$ 642
24/5Fri
multi-stopWestJet
13h 52mYYC-STL
31/5Fri
multi-stopWestJet
13h 01mSTL-YYC
C$ 648
24/5Fri
multi-stopAir Canada
8h 21mYYC-STL
1/6Sat
multi-stopAir Canada
6h 12mSTL-YYC
C$ 652
24/5Fri
multi-stopAir Canada
8h 21mYYC-STL
29/5Wed
multi-stopAir Canada
6h 12mSTL-YYC
C$ 655
21/5Tue
multi-stopWestJet
17h 11mYYC-STL
31/5Fri
multi-stopWestJet
13h 01mSTL-YYC
C$ 664
22/5Wed
multi-stopDelta
5h 20mYYC-STL
30/5Thu
multi-stopDelta
9h 55mSTL-YYC
C$ 738
22/5Wed
multi-stopUnited Airlines
9h 49mYYC-STL
29/5Wed
multi-stopUnited Airlines
17h 13mSTL-YYC
C$ 1,399

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Calgary - St. Louis Flights

Departure:

Calgary (undefined)Canada

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Calgary

Cabin classes:

Browse origins: