Cheap flights from Calgary to St. Louis

Round-trip
Economy
Calgary (YYC)
St. Louis (STL)
Depart
Return
Any month
Compare vs. Cheapflights |

How to find the cheapest flight from
Calgary (YYC) to St. Louis (STL)

All the information you need to plan the best YYC to STL flight in 2022: compare Calgary to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.
YYC - STL
Price
C$ 345 - C$ 639
STL
Temperature
0 - 27 °C
STL
Rainfall
56 - 119 mm

Popular in

July

High demand for flights, 29% potential price rise

Cheapest in

February

Best time to find cheap flights, 24% potential price drop

Round-trip from

C$ 443

From Calgary to Lambert-St Louis

One-way from

C$ 375

One-way flight from Calgary to Lambert-St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Calgary to St. Louis?

It’s generally more expensive to depart on a Sunday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Users have found that booking a flight from Calgary to St. Louis at least 29 days early can save you up to 48% on average compared to booking a flight this week. If booking 29 days before your flight isn’t an option for you, users have found flights from Calgary to St. Louis for as little as C$ 746 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 797 for flights departing within the next 3 days.

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

The best pricing can be found in the month of February. Prices to St. Louis from Calgary average C$ 586. You can even find prices in February for less than C$ 586, as users have found deals to St. Louis from as low as C$ 417. The month of July appears to be one of the more expensive times to travel to St. Louis from Calgary. Flying in the targeted month can save you up to 40%.

When is the cheapest time to fly from Calgary to St. Louis (YYC - STL)?

It’s typically best to fly out from Calgary to St. Louis in the evening. Doing so could potentially save you 55% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from Calgary to St. Louis in August, September 2022

The best prices found for YYC to STL flights for August, September
25 Sep - 30 Sep
C$ 553pp
YYC
Calgary
Air Canada
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
 
1 STOP
YYC
Calgary
3 Sep - 5 Sep
C$ 554pp
YYC
Calgary
Air Canada
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
 
1 STOP
YYC
Calgary
22 Sep - 27 Sep
C$ 562pp
YYC
Calgary
Air Canada
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
 
1 STOP
YYC
Calgary

Calgary to St. Louis 2022 flight deals

Cheap flights to St. Louis from Calgary found for this year
15 Oct - 19 Oct
C$ 507pp
YYC
Calgary
Delta
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YYC
Calgary
14 Oct - 18 Oct
C$ 525pp
YYC
Calgary
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YYC
Calgary
18 Oct - 21 Oct
C$ 526pp
YYC
Calgary
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YYC
Calgary

Cheap Air Canada flights from Calgary to St. Louis

25 Sep - 30 Sep
C$ 553pp
YYC
Calgary
Air Canada
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
 
1 STOP
YYC
Calgary
3 Sep - 5 Sep
C$ 554pp
YYC
Calgary
Air Canada
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
 
1 STOP
YYC
Calgary
22 Sep - 27 Sep
C$ 562pp
YYC
Calgary
Air Canada
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
 
1 STOP
YYC
Calgary

Cheap Delta flights from Calgary to St. Louis

15 Oct - 19 Oct
C$ 507pp
YYC
Calgary
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YYC
Calgary
14 Oct - 18 Oct
C$ 525pp
YYC
Calgary
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YYC
Calgary
18 Oct - 21 Oct
C$ 526pp
YYC
Calgary
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YYC
Calgary

Last minute flights from Calgary to St. Louis

Late deals on round-trip flights to St. Louis from Calgary, departing today and this week
21 Aug - 24 Aug
C$ 838pp
YYC
Calgary
WestJet
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
WestJet
   
2 STOPS
YYC
Calgary
21 Aug - 24 Aug
C$ 847pp
YYC
Calgary
Air Canada
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
 
1 STOP
YYC
Calgary
21 Aug - 24 Aug
C$ 965pp
YYC
Calgary
WestJet
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
WestJet
 
1 STOP
YYC
Calgary

One-way flights to Lambert-St Louis from Calgary

The cheapest one-way flights from Calgary to St. Louis
3:30 p.m. - 12:48 p.m.
Multiple Airlines
3 stops
20h 18m
YYC - STL
Multiple Airlines
C$ 375
Kiwi.com
8:05 p.m. - 3:40 p.m.
WestJet
2 stops
18h 35m
YYC - STL
WestJet
C$ 503
WestJet
9:00 p.m. - 4:19 p.m.
Delta
2 stops
18h 19m
YYC - STL
Delta
C$ 535
Delta

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Calgary</span> to <span class="emphasized">St. Louis</span> flights.

Flight FAQs

From Calgary to St. Louis

Which airlines flying from Calgary to Lambert-St Louis have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Delta, Air Canada, and British Airways flying from Calgary to Lambert-St Louis have implemented new flexible cancellation policies.

Can I find flights from Calgary to St. Louis for under C$ 600 on Cheapflights?

Yes, there are multiple flights from Calgary to St. Louis for under C$ 600. The cheapest flight booked recently is on Delta for just C$ 507, but on average you can expect to pay C$ 569.

Are there last-minute flights available from Calgary to St. Louis for under C$ 900?

There are currently 3+ open flights from Calgary to St. Louis within the next 7 days for less than C$ 900.

How popular is this Calgary to St. Louis flight route?

Flights from Calgary to Lambert-St Louis have been viewed 81 times in the past calendar month.

What are the cheapest airlines flying from Calgary to St. Louis round-trip?

Flying on Delta is currently your cheapest option to St. Louis, with prices starting at C$ 507. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at C$ 553 and C$ 638, respectively. Delta is priced at 13% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Calgary to St. Louis one-way?

C$ 286 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Air Canada and WestJet, with prices starting from C$ 326 and C$ 408, respectively.

What are the most popular airlines that fly from Calgary to St. Louis?

The most popular airlines flying from Calgary to St. Louis are Endeavor Airlines, American Airlines and Air Canada. Something to consider prior to booking your flight.

What are the cheapest flights from Calgary to St. Louis?

Looking at all options, your cheapest flight can be booked for C$ 321. While the most popular route (Calgary - Lambert-St Louis) can be booked for C$ 522 on average our data indicates C$ 588 when flying from Calgary to St. Louis.

COVID Restrictions

View COVID Travel Restrictions for St. Louis, MO

Do I need a COVID test to fly to St. Louis from Calgary?

Information is based on travel restrictions from Calgary to Lambert-St Louis

Most visitors from Calgary need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.

COVID-19 testing requirements
Visitors from Calgary are not required to present a negative COVID-19 PCR test or antigen result upon entering Lambert-St Louis.

Quarantine requirements
Visitors from Calgary are not required to quarantine after entering Lambert-St Louis.

Do I need a test to fly back to Calgary from St. Louis?

Returning to Calgary from Lambert-St Louis

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Calgary.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Calgary.

Hide COVID Travel Restrictions for St. Louis, MO

Top 7 airlines flying from Calgary to Lambert-St Louis

The chart below displays the airlines Cheapflights users travelling from Calgary to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
C$ 271 C$ 557 No cancel fee N/A
Search Delta flights
WestJet
C$ 299 C$ 540 No cancel fee 60%
Search WestJet flights
Air Canada
C$ 340 C$ 711 No cancel fee 67%
Search Air Canada flights
United Airlines
C$ 433 C$ 655 No cancel fee 69%
Search United Airlines flights
British Airways
C$ 444 C$ 494 No cancel fee 70%
Search British Airways flights
American Airlines
C$ 461 C$ 735 No cancel fee 71%
Search American Airlines flights
Endeavor Airlines
C$ 865 C$ 904 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by Endeavor Airlines. Please check directly on their website for additional information.

Search Endeavor Airlines flights
Home North America USA Missouri St. Louis Cheap flights from Calgary to St. Louis
  • Round-trip
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First