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Cheap Flights from St Louis to Calgary

Compare St Louis to Calgary flight deals

Find the cheapest month or even day of the year to fly to Calgary

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Flight deals from St Louis to Calgary

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Calgary Airport? If you want to travel next month, return fares start from $880. Find the lowest prices on one-way and return tickets right here.
Calgary.$762 per passenger.Departing Sat, 24 Oct, returning Sat, 31 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Sat, 24 Oct, arriving in Calgary.Inbound indirect flight with Delta, departs from Calgary on Sat, 31 Oct, arriving in St Louis.Price includes taxes and charges.From $762, select.
Calgary.$762 per passenger.Departing Thu, 3 Dec, returning Sun, 6 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Thu, 3 Dec, arriving in Calgary.Inbound indirect flight with Delta, departs from Calgary on Sun, 6 Dec, arriving in St Louis.Price includes taxes and charges.From $762, select.
Calgary.$773 per passenger.Departing Tue, 25 Aug, returning Sat, 5 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Tue, 25 Aug, arriving in Calgary.Inbound indirect flight with Delta, departs from Calgary on Sat, 5 Sep, arriving in St Louis.Price includes taxes and charges.From $773, select.
Calgary.$796 per passenger.Departing Sun, 16 Aug, returning Sat, 29 Aug.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sun, 16 Aug, arriving in Calgary.Inbound indirect flight with United, departs from Calgary on Sat, 29 Aug, arriving in St Louis.Price includes taxes and charges.From $796, select.
Calgary.$854 per passenger.Departing Tue, 15 Sep, returning Wed, 23 Sep.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 15 Sep, arriving in Calgary.Inbound indirect flight with United, departs from Calgary on Wed, 23 Sep, arriving in St Louis.Price includes taxes and charges.From $854, select.
Calgary.$883 per passenger.Departing Fri, 24 Jul, returning Mon, 27 Jul.Return flight with WestJet.Outbound indirect flight with WestJet, departs from St Louis on Fri, 24 Jul, arriving in Calgary.Inbound indirect flight with WestJet, departs from Calgary on Mon, 27 Jul, arriving in St Louis.Price includes taxes and charges.From $883, select.
Calgary.$883 per passenger.Departing Sat, 18 Jul, returning Sun, 2 Aug.Return flight with WestJet.Outbound indirect flight with WestJet, departs from St Louis on Sat, 18 Jul, arriving in Calgary.Inbound indirect flight with WestJet, departs from Calgary on Sun, 2 Aug, arriving in St Louis.Price includes taxes and charges.From $883, select.
Calgary.$938 per passenger.Departing Sat, 26 Sep, returning Sat, 3 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from St Louis on Sat, 26 Sep, arriving in Calgary.Inbound indirect flight with WestJet, departs from Calgary on Sat, 3 Oct, arriving in St Louis.Price includes taxes and charges.From $938, select.
Calgary.$999 per passenger.Departing Thu, 19 Nov, returning Mon, 30 Nov.Return flight with WestJet.Outbound indirect flight with WestJet, departs from St Louis on Thu, 19 Nov, arriving in Calgary.Inbound indirect flight with WestJet, departs from Calgary on Mon, 30 Nov, arriving in St Louis.Price includes taxes and charges.From $999, select.
Calgary.$1,225 per passenger.Departing Fri, 26 Jun, returning Fri, 3 Jul.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Fri, 26 Jun, arriving in Calgary.Inbound indirect flight with Air Canada, departs from Calgary on Fri, 3 Jul, arriving in St Louis.Price includes taxes and charges.From $1,225, select.

Find the cheapest month to fly from St Louis to Calgary

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Calgary flights are currently cheapest in October.
Jun
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Jul
from $883
Aug
from $796
Sep
from $854
Oct
from $762
Nov
from $999
Dec
from $762
Jan
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Feb
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Mar
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Apr
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May
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St Louis to Calgary: Alternative routes

Compare routes from St Louis to Calgary below. You may find an airport to fly into that's cheaper, faster, or easier than Calgary.

Calgary

8km from central Calgary
ClosestCheapest
from $759
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St Louis to Calgary: Flight information

The things to know before you go.
Cheapest flight found$759
Cheapest month to flyDecember

Finding cheap flights from St Louis to Calgary: Frequently asked questions

The best price we found for a return flight from St Louis to Calgary is $759. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Calgary. But we found flights with one or more stops from $762.
As of June 2026, there are no flights flying from St Louis to Calgary.
The cheapest month to fly from St Louis to Calgary is usually December.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Calgary Airport on Thursday, 3 December 2026.
No airlines currently offer direct flights between St Louis Airport and Calgary Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Calgary but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Calgary is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Calgary.

Flying from St Louis Airport (STL) to Calgary Airport (YYC): what you need to know

  • Calgary's timezone is UTC-7, which makes Calgary one hour behind St Louis.

  • Give yourself plenty of time to catch your STL to YYC flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak time such as July? Public holidays and other popular seasons can result in longer lines and delays at security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • Consider adding a stopover when booking your ticket from St Louis Airport to Calgary Airport. Simply uncheck 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Check out these options between STL and YYC:

    • Chicago O'Hare International Airport

    • Denver International Airport

    • Salt Lake City Airport

How to find the cheapest flights from St Louis Airport (STL) to Calgary Airport (YYC)

  • Right now, $331 is the cheapest price we've found for a one-way St Louis Airport to Calgary Airport flight. The best price for a return ticket is $762. Bear in mind that fares can change due to demand when booking.

  • Don't leave things to the last minute. You're more likely to find cheap tickets from STL to YYC if you book in advance. Airlines often have some terrific early bird discounts.

  • If you can be flexible with your travel plans, try using the 'Whole month' tool. It'll give you the cheapest price across the month when looking for a flight from St Louis Airport to Calgary Airport.

  • You don't need to check every day to see if fares have gone down when you set up a Price Alert. We'll send you an update as soon as there's a new deal on cheap flights from STL to YYC.

  • Find the ideal flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from St Louis Airport to Calgary Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and journey duration.

Handy information about St Louis Airport (STL)

Arriving at Calgary Airport (YYC)

Getting from Calgary Airport (YYC) to central Calgary

  • You'll find YYC at 2000 Airport Road Northeast.

  • Calgary Airport to central Calgary has a drive time of about 25 minutes. It's approximately 19 kilometres away.

  • It takes roughly 45 minutes to get there using public transport.

When to fly to Calgary Airport (YYC)

  • The quietest month for a flight from St Louis Airport to Calgary Airport is November, while July is the busiest. Choose the best time to go to Calgary based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Calgary is August, with temperatures ranging between 8ºC and 26ºC. Book your flights from St Louis Airport to Calgary Airport in this month if this is the type of weather you enjoy.

  • Search for cheap tickets from STL to YYC in February if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between -22ºC and 3ºC on average.

Explore more of Canada

  • Calgary has its own special appeal, but there are so many other parts of Canada just waiting to be discovered. Around 274 kilometres north of Calgary, a trip to Edmonton will keep you on the go. Check out popular attractions like Rogers Place, Citadel Theatre and Muttart Conservatory.

  • Around 402 kilometres west of Calgary, Kelowna is another essential stop in Canada. Experience the best of this destination with a visit to Okanagan Lake, The View Winery and Vineyard and Waterfront Park.

More travel options

Plan the rest of your trip from St Louis to Calgary

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.