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STL - YYC

$145 Find cheap flights from St. Louis to Calgary

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 Calgary departing on 8/30. 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
Wed 7/10
Wed 7/17

Search hundreds of travel sites at once for deals on flights to Calgary

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Calgary, 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 Calgary, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Calgary 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
7:29 pm - 11:56 amSTL-YYC
17h 27m1 stop
11:00 am - 8:02 pmYYC-STL
8h 02m1 stop
Tue, Jun 25 - Thu, Jul 4
10:00 pm - 4:47 pmSTL-YYC
19h 47m2 stops
11:00 am - 8:02 pmYYC-STL
8h 02m1 stop
Mon, Jun 24 - Thu, Jul 4
12:15 pm - 8:40 pmSTL-YYC
9h 25m2 stops
7:30 pm - 10:18 amYYC-STL
13h 48m1 stop
Thu, Aug 8 - Tue, Aug 20
2:35 pm - 11:04 pmSTL-YYC
9h 29m1 stop
6:45 am - 4:46 pmYYC-STL
9h 01m1 stop
$386Delta
Find Deal
Wed, Aug 7 - Wed, Aug 14
6:06 am - 1:40 pmSTL-YYC
8h 34m1 stop
8:00 am - 11:28 pmYYC-STL
14h 28m2 stops
$395Delta
Find Deal
Fri, Jul 19 - Tue, Aug 6
4:05 pm - 10:45 pmSTL-YYC
7h 40m1 stop
11:40 pm - 3:21 pmYYC-STL
14h 41m1 stop
$406Air Canada
Find Deal
Sun, Jul 14 - Tue, Jul 23
6:01 pm - 8:25 pmSTL-YYC
27h 24m1 stop
6:45 am - 10:07 pmYYC-STL
14h 22m1 stop
$415WestJet
Find Deal
Tue, Jul 9 - Wed, Jul 17
6:00 am - 3:50 pmSTL-YYC
10h 50m2 stops
12:30 am - 9:03 amYYC-STL
7h 33m1 stop
$420WestJet
Find Deal
Sat, Aug 17 - Fri, Aug 23
4:05 pm - 10:44 pmSTL-YYC
7h 39m1 stop
6:00 am - 3:20 pmYYC-STL
8h 20m1 stop
$449Air Canada
Find Deal
Sat, Sep 28 - Thu, Oct 3
5:31 pm - 10:43 pmSTL-YYC
6h 12m1 stop
6:25 am - 10:11 pmYYC-STL
14h 46m1 stop
$463United Airlines
Find Deal
Mon, Jun 24 - Sun, Jun 30

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

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

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

The average price of all flights from St. Louis to Calgary clicked on KAYAK for each day over the last 12 months.
When flying from St. Louis to Calgary, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Saturdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Calgary, 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 Calgary is March, where tickets cost $491 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is $667 and $658 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Calgary, 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 St. Louis to Calgary, you should book around 5 days before departure. For the absolute cheapest price, our data suggests you should book 90 days before departure.

Which airlines provide the cheapest flights from St. Louis to Calgary?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from St. Louis to Calgary found by KAYAK users in the last 72 hours was for $386 on Delta, followed by Air Canada ($406). One-way flight deals have also been found from as low as $167 on Delta and from $168 on Air Canada.

Good to know

Low season

November

High season

July

Cheapest flight

$145
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 13% increase in price.
Flight from St. Louis to Calgary

When to book flights from St. Louis to Calgary

Are your dates flexible? Find out the best times to travel from St. Louis to Calgary 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 St. Louis to Calgary

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

    In the last 3 days, the lowest price for a flight from St. Louis to Calgary was $145 for a one-way ticket and $257 for a round-trip.

  • Do I need a passport to fly between St. Louis and Calgary?

    Yes

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

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

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

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

  • Which is the best airline for flights from St. Louis to Calgary, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Calgary are Delta and United Airlines. With an average price for the route of $558 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $662 and an overall rating of 7.4.

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

    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 Calgary.

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

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

    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 Calgary with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and YYC can sometimes prove cheaper using this method.

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

    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 Calgary from St. Louis 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 St. Louis to Calgary

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Calgary. 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 Calgary? 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.
8.0
DeltaOverall score based on 10295 reviews
8.6Crew
8.0Entertainment
8.2Boarding
7.9Comfort
7.4Food
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

WestJet ran out of dinner meals on a transatlantic flight. Crappy to have a bun and a bit of lettuce for food on a long and not inexpensive flight. Flight staff did not look for options to resolve.

Delayed 2 days in London England - very poor communication from Westjet

The Priority check in in Toronto rivalled the poorest I've experienced. The young woman at the desk (7:30 AM, YYZ) was unfriendly and abrupt, behaving as though we were interrupting her day. Her inch long fingernails said it all....I really don't belong here. Other than that, WestJet personnel provided a good travel experience, especially in flight. I must say that the repeated announcements about the cabin being full and how folks should gate check their bags became tedious. WestJet should just offer free checked luggage and charge for carry on suitcases. It would save a lot of time and the voices of the gate agents.

Wish there was an option to book a fellow traveler who is not necessarily paying on the same booking. Then the airline could consider placing us together. It was a long flight to be separated from travel buddy. The first meal, a luncheon I think was ok with warmish pasta and a tiny salad. The second meal, a midnight snack (hard to say because of the time change) was really awful pizza fold-ups, and no option for folks who cannot eat cheese.

It was a 35 minutes flight. Didn't expect much. You should add a 'not applicable' option to your survey.

The back seats are crowded and at times uncomfortable. I guess that’s part of the price of paying less for a seat.

My journey from Rome to Seattle contains two parts, first from Rome to YYC then transfer YYC to Seattle. First part from Rome to YYC was wonderful. Fly on times, easy boarding and comfortable seating and good meals. Second from YYC to Seattle is terrible, delayed three times before boarding. No meal, no water, no entertainment. Landed in some corner of airport , walking in bitter cold night and taking the bus. My friend told me that Westjet is the best airline in Canada, I doubt it

They lost our luggage and didn’t return it until 15 days AFTER we got back.

Adequate though food was not great and no alcohol abailable

Great Experience! Flight was ahead of schedule and very smooth! Wonderful flight

Why does it have to be painful to fly long distances?

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

Not worth the premium paid for the first class ticket

Fine. Though no food or entertainment so the survey needs to be updated with those options.

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

Standard flight experience, but there is only power at the seat to row 20 on the aircraft, on my initial check in it did not say that was the case

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

The ride was good but no food ot entertainment hence, it was just over an hour flight.

Paid for premium economy had no tv the whole time the crew tried to reset/reboot but would not work they said they would put a trouble ticket in for it. We had 3 seats my tv was the only one that didn't work. They cancelled our flight re worked us on another that left us at airport over night on the floor I have a ten year old and a 78 diabetic mother which also had shingles and suffers from nerve pain in legs and back. Requested wheelchair service at all airports after the re route NO wheelchair service was there to help. WORST experience we have ever had. Went to American airlines assistance it was closed. I AM FURIOUS!!! I expect some sort of compensation from this traumatic experience and no need for flying points we don't plan on using American airlines again!!!!

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Information when booking said the flight would be with American Airlines but the flight was actualy with British Airways. Check in from Orlando was nice and quick. I agreed to put my cabin case in the checked luggage as it was a full flight. Case came back damaged (unable to put the handle down) so will have to dispose of it. Seats were quite cramped with very little leg room, even for economy. This was the experience of both the outgoing and return flight. Cabin crew were ok and flight time was punctual.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

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.

My flight got canceled. Then AC rebooked me to a next day flight. No compensation no apology. It almost messed up my entire trip and schedule. However, all the unexpepected seems routine and ordinary to AC, so customers need to get used to.

The food was horrible the flying attendance hardly made any checks and the seats were very tied ..

I love air Canada. The staff is so helpful and friendly and attentive. I paid for extra room but chose a ser near a person who took up a lot of space which gave me less space than regular economy, I was sad I did that!

Horrible delays and confusion at all Air Canada counters. Flight was delayed well over 6 hours with little to no communication. Was o my offered a $15 food voucher and $200 Air Canada voucher—-neither of which did I need or have desire to use. Will never fly this airline again.

Prepaid for my seat selection over a month in advance only to be told when I arrive at the airport that the plane has changed and no pre-selected seats would be honored and refunds would not be issued immediately. Was forced to separate from my traveling companion Air Canada. Unsurprisingly was no assistance in this whatsoever. Plane. We got switched on to also has no entertainment options available

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.

Glad to see the staff of Air Canada take preference in protecting their customers from unruly passengers before they board. Well done

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

This website did not advise the prices were in $USD, when the flyer (me) was flying within Canada only and only a Canadian resident, and booking this flight in Canada. Furthermore, the area to board the plane was unusually hot and sweaty.

Book cheap flights from St. Louis to Calgary

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Calgary found on KAYAK in the last 72 hours.
8/30Fri
2 stops
25h 41mSTL-YYC
$145
7/9Tue
2 stops
9h 25mSTL-YYC
$159
7/16Tue
1 stopDelta
9h 29mSTL-YYC
$167
8/31Sat
1 stopAir Canada
7h 40mSTL-YYC
$168
7/9Tue
1 stop
17h 07mSTL-YYC
$171
8/30Fri
1 stop
21h 47mSTL-YYC
$177
7/9Tue
3 stops
34h 17mSTL-YYC
$192
7/16Tue
2 stopsWestJet
11h 26mSTL-YYC
$204
7/27Sat
2 stopsDelta
13h 55mSTL-YYC
$207
8/31Sat
2 stopsWestJet
16h 34mSTL-YYC
$231

Search by stops

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Last minute flights from St. Louis to Calgary

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 St. Louis to Calgary that are departing in the next 10 days.
6/13Thu
multi-stopUnited Airlines
5h 58mSTL-YYC
6/15Sat
multi-stopUnited Airlines
20h 21mYYC-STL
$653
6/13Thu
multi-stopUnited Airlines
5h 58mSTL-YYC
6/15Sat
multi-stopUnited Airlines
21h 51mYYC-STL
$683
6/13Thu
multi-stopAir Canada
5h 58mSTL-YYC
6/15Sat
multi-stopAir Canada
5h 21mYYC-STL
$693
6/13Thu
multi-stopDelta
9h 33mSTL-YYC
6/15Sat
multi-stopDelta
10h 55mYYC-STL
$698
6/13Thu
multi-stopDelta
13h 47mSTL-YYC
6/15Sat
multi-stopDelta
10h 55mYYC-STL
$708
6/13Thu
multi-stopDelta
13h 47mSTL-YYC
6/15Sat
multi-stopDelta
11h 34mYYC-STL
$753
6/13Thu
multi-stopAir Canada
5h 58mSTL-YYC
6/14Fri
multi-stopAir Canada
13h 21mYYC-STL
$868
6/13Thu
multi-stopDelta
13h 47mSTL-YYC
6/14Fri
multi-stopDelta
10h 16mYYC-STL
$1,219
6/13Thu
multi-stopDelta
13h 47mSTL-YYC
6/14Fri
multi-stopDelta
7h 41mYYC-STL
$3,005

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St. Louis - Calgary Flights

Departure:

St. Louis (STL)United States

Destination:

Calgary (YYC)Canada

Return flight deals:

Calgary - St. Louis

Cabin classes:

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