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STL - YYC

Find cheap flights from St. Louis to Calgary from $167

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 9/10. 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
Mon 6/3
Mon 6/10

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 43,693,958 times on KAYAK, and here is why:

Save 22% 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
6:05 pm - 6:41 pmSTL-YYC
25h 36m2 stops
11:00 am - 10:32 pmYYC-STL
10h 32m1 stop
Fri, May 24 - Sun, May 26
4:05 pm - 4:59 pmSTL-YYC
25h 54m3 stops
9:30 pm - 5:28 pmYYC-STL
18h 58m3 stops
Fri, May 31 - Fri, Jun 7
4:05 pm - 4:59 pmSTL-YYC
25h 54m3 stops
10:00 am - 10:34 amYYC-STL
23h 34m2 stops
Fri, May 31 - Fri, Jun 7
4:05 pm - 10:45 pmSTL-YYC
7h 40m1 stop
6:00 am - 3:21 pmYYC-STL
8h 21m1 stop
$432Air Canada
Find Deal
Tue, Aug 20 - Wed, Aug 28
2:28 pm - 11:13 pmSTL-YYC
9h 45m1 stop
8:00 am - 5:35 pmYYC-STL
8h 35m1 stop
$435Delta
Find Deal
Fri, May 31 - Fri, Jun 7
3:30 pm - 8:41 pmSTL-YYC
6h 11m1 stop
8:05 am - 9:29 pmYYC-STL
12h 24m2 stops
$445Delta
Find Deal
Tue, Aug 20 - Wed, Aug 28
3:30 pm - 8:41 pmSTL-YYC
6h 11m1 stop
10:00 am - 11:39 pmYYC-STL
12h 39m1 stop
$452WestJet
Find Deal
Tue, Aug 20 - Wed, Aug 28
6:11 am - 8:46 pmSTL-YYC
15h 35m1 stop
9:45 am - 9:34 pmYYC-STL
10h 49m1 stop
$453WestJet
Find Deal
Sat, May 18 - Sat, Jun 1
4:05 pm - 10:45 pmSTL-YYC
7h 40m1 stop
1:00 am - 3:21 pmYYC-STL
13h 21m1 stop
$455Air Canada
Find Deal
Tue, Aug 20 - Tue, Aug 27
7:41 pm - 11:18 amSTL-YYC
16h 37m1 stop
12:08 pm - 1:36 pmYYC-STL
24h 28m1 stop
$588Alaska Airlines
Find Deal
Sun, May 26 - Mon, Jun 3

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 $663 and $639 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 2 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 $432 on Air Canada, followed by Delta ($435). One-way flight deals have also been found from as low as $272 on Delta and from $310 on Air Canada.

Good to know

Low season

November

High season

July

Cheapest flight

$167
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 $167 for a one-way ticket and $400 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 SkyTeam being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Calgary are Delta and WestJet. With an average price for the route of $582 and an overall rating of 8.0, Delta is the most popular choice. WestJet is also a great choice for the route, with an average price of $609 and an overall rating of 7.5.

  • 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 10848 reviews
7.9Comfort
8.2Boarding
8.6Crew
7.4Food
8.0Entertainment
Airline reviews

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

10.0 ExcellentAllan, May 2024SUN - SLC
Read more about Delta reviews

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

For some reason there was a change in the cockpit which delayed us by an hour

flight changed by airline. then could not check imto mew flight because kiwi had messed up the reservation. still waiting to depart…

Good. Really crowded and busy. Going to Winnipeg plane was crowded and seats very narrow Now I remember why I dislike flying 😈

Having a lot of delayed flights on West Jet, however things always work out. So no complaints.

Check in was seamless , crew very polite , arrived on time!

Nothing special. Unacceptable wait for baggage on arriving in Calgary

Seats can use more cushioning, it felt very hard. The snack option could be better

Over all good. I had some issues with trying to buy my seat. The Westjet system kept trying to charge my credit card, without getting the seat. In the end after 5 times being charged, I got my seat.

I did not have a meal or entertainment, but flight was comfortable, beverage service was quick, crew was very helpful and pleasant. And a very smooth flight overall.

WestJet does make an effort to make the flying experience enjoyable. While I could have saved some money by choosing a different airline; I was able to fly directly, and with minimal hold-over. The extra $150 was well worth it

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Too bad that first class seats do not recline significantly causing discomfort

I think the seats on some of their planes are uncomfortable. You can be ok on a short flight of two hours but no more than that. The delays, and also the refreshments on the plane were not enough.

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

All was good, except our baggage was lost for most of a day. We are thankful that it was found quickly and delivered to our hotel. Rouge was fine outside of that problem.

You do not have a space for flight cancelled. BUT!!! Air Canada handled it great. Was booked on another airline for the next day. The original flight was booked solid. But he precheck by the maintenance found a mechanical problem and the plane was not safe to fly. It was an inconvenience to have to wait until next day but I would rather arrive safely.

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

Easy boarding, roomy seats, plenty of good food, very helpful snd friendly staff. Very smooth flight! Only thing that could have been better was to have cranberry juice. Women like this as it helps avoid UTI’s and not as sweet as other juices.

The crew was friendly, the seats are too small. Air travel is barely tolerable anymore.

Food was icecold or frozen including breakfast. Hopeless service. Rude crew.

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

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.
9/10Tue
1 stop
17h 27mSTL-YYC
$167
9/10Tue
2 stops
12h 50mSTL-YYC
$202
9/10Tue
3 stops
14h 40mSTL-YYC
$204
8/1Thu
2 stopsDelta
13h 02mSTL-YYC
$272
8/1Thu
1 stopAir Canada
8h 58mSTL-YYC
$310

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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.
5/7Tue
multi-stop
13h 59mSTL-YYC
5/9Thu
multi-stop
18h 49mYYC-STL
$543
5/7Tue
multi-stop
17h 07mSTL-YYC
5/9Thu
multi-stop
6h 37mYYC-STL
$603
5/7Tue
multi-stop
35h 33mSTL-YYC
5/9Thu
multi-stop
18h 49mYYC-STL
$624
5/7Tue
multi-stopWestJet
6h 41mSTL-YYC
5/8Wed
multi-stopWestJet
10h 28mYYC-STL
$633
5/7Tue
multi-stopWestJet
12h 49mSTL-YYC
5/8Wed
multi-stopWestJet
13h 02mYYC-STL
$638
5/7Tue
multi-stop
35h 33mSTL-YYC
5/9Thu
multi-stop
15h 50mYYC-STL
$675
5/7Tue
multi-stopWestJet
12h 48mSTL-YYC
5/9Thu
multi-stopWestJet
13h 40mYYC-STL
$704
5/7Tue
multi-stopAir Canada
5h 52mSTL-YYC
5/8Wed
multi-stopAir Canada
14h 11mYYC-STL
$712

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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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