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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 7/16. 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
Fri 6/7
Fri 6/14

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 43,968,530 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
7:23 pm - 11:58 amSTL-YYC
17h 35m1 stop
7:30 pm - 10:42 amYYC-STL
14h 12m1 stop
Tue, Jun 4 - Tue, Jun 11
10:10 am - 6:29 pmSTL-YYC
9h 19m1 stop
6:00 am - 3:20 pmYYC-STL
8h 20m1 stop
$383Air Canada
Find Deal
Sun, Oct 13 - Fri, Oct 18
2:30 pm - 11:03 pmSTL-YYC
9h 33m1 stop
2:56 pm - 9:36 pmYYC-STL
5h 40m1 stop
$386Delta
Find Deal
Fri, Jul 26 - Tue, Jul 30
2:30 pm - 11:03 pmSTL-YYC
9h 33m1 stop
6:45 am - 8:36 pmYYC-STL
12h 51m2 stops
$395Delta
Find Deal
Fri, Jul 26 - Tue, Jul 30
4:05 pm - 10:45 pmSTL-YYC
7h 40m1 stop
6:00 am - 3:21 pmYYC-STL
8h 21m1 stop
$406Air Canada
Find Deal
Tue, Aug 20 - Wed, Aug 21
7:29 pm - 1:20 pmSTL-YYC
18h 51m1 stop
3:00 pm - 9:31 pmYYC-STL
5h 31m1 stop
Sun, Oct 6 - Sat, Oct 12
6:00 am - 7:15 pmSTL-YYC
14h 15m2 stops
12:30 am - 2:57 pmYYC-STL
13h 27m1 stop
$414WestJet
Find Deal
Wed, Jun 5 - Tue, Jun 11
6:11 am - 4:30 pmSTL-YYC
11h 19m2 stops
8:00 pm - 9:10 amYYC-STL
12h 10m2 stops
$419WestJet
Find Deal
Wed, Jun 5 - Wed, Jun 12
9:44 am - 9:50 pmSTL-YYC
13h 06m1 stop
6:45 am - 6:43 pmYYC-STL
10h 58m1 stop
$650American Airlines
Find Deal
Sat, Jun 15 - Sat, Jun 22
6:04 am - 12:35 pmSTL-YYC
7h 31m1 stop
1:30 pm - 9:54 pmYYC-STL
7h 24m1 stop
$818WestJet Encore
Find Deal
Mon, Jul 15 - Sun, Jul 21

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 $383 on Air Canada, followed by Delta ($386). One-way flight deals have also been found from as low as $167 on Delta and from $192 on WestJet.

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 $303 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 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 $581 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 $601 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 10789 reviews
8.6Crew
7.4Food
8.0Entertainment
8.2Boarding
7.9Comfort
Airline reviews

West Jet has a horrible boarding process and the seats have no cushion.

4.0 OkayDouglas, May 2024MSP - YEG
Read more about Delta reviews

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

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!

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

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

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.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

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.

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

Aircraft has better leg room than any of United's larger planes. We had requested mobility assistance for this and related flights. United's response to all was superb.

No snacks served! Seating in the kast row in uncomfortable.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

I was in business class. There was an excellent headset. But half an hour before arrival they collected them! The rest of the trip I had to use a cheap earphone. There must be a better way to protect the headphones.

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.

First time flying Air Canada and the trip was very pleasant! They did a great job getting us out of Toronto and into Rome (early!) For an international flight it was very enjoyable.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

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!

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.
7/16Tue
1 stopDelta
9h 33mSTL-YYC
$167
5/24Fri
2 stops
25h 36mSTL-YYC
$170
9/6Fri
2 stopsDelta
13h 51mSTL-YYC
$172
9/6Fri
2 stopsWestJet
13h 07mSTL-YYC
$192
9/6Fri
1 stop
17h 27mSTL-YYC
$195
7/16Tue
2 stopsDelta
11h 17mSTL-YYC
$204
5/17Fri
2 stops
13h 23mSTL-YYC
$207
5/23Thu
3 stops
24h 42mSTL-YYC
$242
5/23Thu
2 stopsWestJet
13h 03mSTL-YYC
$330
5/24Fri
1 stopUnited Airlines
17h 13mSTL-YYC
$353

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St. Louis - Calgary Flights

Departure:

St. Louis (undefined)United States

Destination:

Calgary (YYC)Canada

Return flight deals:

Calgary - St. Louis

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