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$75+ Cheap flights from Illinois to Calgary (YYC)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYC
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
1 adult, Economy
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Cheap flight deals from Illinois to Calgary

Keep the following information in mind while searching for Illinois to Calgary flight deals. Data was last updated July 25, 2025.

Round-trip from

$168
(Kiwi.com)

One-way from

$75
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$337

Good round-trip deal

$222 or less

Good one-way deal

$93 or less
From Illinois to Calgary
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One-way flight from Illinois to Calgary
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Highest demand for flights based on searches. 21% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Calgary.
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Price to beat on a one-way flight from Illinois to Calgary.
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Find flight deals from Illinois to Calgary

Cheapest flights from Illinois to Calgary
Explore the most affordable flight options available from Illinois to Calgary. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/65:30 pmORD - YYC
Nonstop3h 49mWestJet
Mon 11/39:00 amYYC - ORD
Nonstop3h 35mWestJet
Deal found 7/22$178
This Mytrip deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:20 pmORD - YYC
1 stop7h 52mAir Canada
Thu 9/111:10 amYYC - ORD
1 stop7h 41mAir Canada
Deal found 7/24$191
This Mytrip deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:30 pmORD - YYC
Nonstop3h 49mMultiple Airlines
Fri 9/261:10 amYYC - ORD
1 stop7h 41mMultiple Airlines
Deal found 7/23$199
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:08 pmORD - YYC
Nonstop3h 45mUnited Airlines
Sat 9/206:15 amYYC - ORD
1 stop13h 26mUnited Airlines
Deal found 7/24$216
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/99:30 amMDW - YYC
2 stops12h 13mDelta
Sat 9/136:40 amYYC - MDW
1 stop9h 55mDelta
Deal found 7/24$261
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/712:05 pmSTL - YYC
1 stop7h 19mMultiple Airlines
Sun 9/148:55 amYYC - STL
1 stop23h 11mMultiple Airlines
Deal found 7/23$281
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:20 amMDW - YYC
1 stop14h 40mMultiple Airlines
Tue 9/912:30 amYYC - MDW
1 stop14h 28mMultiple Airlines
Deal found 7/24$312
This American Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:23 amSTL - YYC
1 stop16h 56mAmerican Airlines
Mon 9/226:29 amYYC - STL
1 stop16h 19mAmerican Airlines
Deal found 7/23$346
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:28 pmSTL - YYC
1 stop19h 10mUnited Airlines
Tue 10/211:30 pmYYC - STL
2 stops20h 19mUnited Airlines
Deal found 7/23$434
This Air Canada deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/121:30 pmSTL - YYC
1 stop9h 00mAir Canada
Tue 8/199:40 amYYC - STL
1 stop9h 05mAir Canada
Deal found 7/23$454
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/122:25 pmSTL - YYC
1 stop9h 32mDelta
Tue 8/196:40 amYYC - STL
2 stops12h 53mDelta
Deal found 7/24$472
This American Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:20 amMLI - YYC
1 stop12h 59mAmerican Airlines
Sat 9/276:29 amYYC - MLI
1 stop26h 52mAmerican Airlines
Deal found 7/23$548

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Calgary that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 25, 2025.
Use the filters below to find and compare flights from Illinois to Calgary that are best for you.

Fly from

Illinois

Fly to

Calgary

Route

Depart

Return

Price

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Mon 10/6

5:30 pm-8:19 pm

Nonstop3h 49m

Calgary

Mon 11/3

9:00 am-1:35 pm

Nonstop3h 35m

$178

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Mon 9/8

6:20 pm-1:12 am

1 stop7h 52m

Calgary

Thu 9/11

1:10 am-9:51 am

1 stop7h 41m

$191

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Tue 9/23

5:30 pm-8:19 pm

Nonstop3h 49m

Calgary

Fri 9/26

1:10 am-9:51 am

1 stop7h 41m

$199

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Sat 9/13

8:08 pm-10:53 pm

Nonstop3h 45m

Calgary

Sat 9/20

6:15 am-8:41 pm

1 stop13h 26m

$216

ChicagoCalgary

MDW - YYC

MDWYYC

Chicago Midway

Tue 9/9

9:30 am-8:43 pm

2 stops12h 13m

Calgary

Sat 9/13

6:40 am-5:35 pm

1 stop9h 55m

$261

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sun 9/7

12:05 pm-6:24 pm

1 stop7h 19m

Calgary

Sun 9/14

8:55 am-9:06 am

1 stop23h 11m

$281

ChicagoCalgary

MDW - YYC

MDWYYC

Chicago Midway

Thu 9/4

6:20 am-8:00 pm

1 stop14h 40m

Calgary

Tue 9/9

12:30 am-3:58 pm

1 stop14h 28m

$312

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 9/18

7:23 am-11:19 pm

1 stop16h 56m

Calgary

Mon 9/22

6:29 am-11:48 pm

1 stop16h 19m

$346

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 10/14

5:28 pm-11:38 am

1 stop19h 10m

Calgary

Tue 10/21

1:30 pm-10:49 am

2 stops20h 19m

$434

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 8/12

1:30 pm-9:30 pm

1 stop9h 00m

Calgary

Tue 8/19

9:40 am-7:45 pm

1 stop9h 05m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 33 results
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Best time to book a flight from Illinois to Calgary

Have a flexible travel schedule? Discover the best time to fly to Calgary from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Calgary

What is the cheapest month to book a flight from Illinois to Calgary?

Currently, January is the cheapest month in which you can book a flight from Illinois to Calgary (average of $300). Flying from Illinois to Calgary in February is currently the most expensive (average of $402). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to YYC?

Find hourly flight availability from Illinois to Calgary. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Calgary as you normally would.

Weekly flight availability from Illinois to Calgary

Explore weekly flight availability from Illinois to Calgary. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 25, 2025.

The most flights from USIL to YYC are scheduled on a Friday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing Calgary

Get insights into the airlines that provide service to Calgary. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Calgary. Reviews last updated July 25, 2025.
Read reviews from past customers who have flown Alaska Airlines, Porter Airlines, and Delta from Illinois to Calgary. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Porter Airlines
8.0
Very good
314 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,967 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,876 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Calgary. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Calgary from Illinois?

    For a flight from Illinois to Calgary, you will be flying into Calgary. Calgary (YYC) is just 5.8 mi from the center of the city.

  • What are the cheapest airlines to fly from Illinois to Calgary one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $75. American Airlines flights start at $77 while deals on United Airlines start at $84 one-way.

  • What are the most popular routes from Illinois to Calgary?

    When deciding which route to take from Illinois to Calgary consider Chicago O'Hare Intl - Calgary, Chicago Midway - Calgary or Lambert-St Louis - Calgary as they are the most popular.

  • What are the most reliable airlines from Illinois to Calgary?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Calgary on time: Envoy Air (80%), Air Canada (68%), United Airlines (68%).

  • What are the cheapest flights from Illinois to Calgary?

    The cheapest flight price from Illinois to Calgary is $67. On average you can expect to pay $960. The most popular route, (Chicago O'Hare Intl - Calgary), can usually be booked for $185.

  • Can I find deals for flights from Illinois to Calgary that include hotel bookings?

    Yes. In addition to deals on Illinois to Calgary flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Calgary?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Calgary.

  • Can I find deals for business class flights from Illinois to Calgary?

    Yes. Cheapflights offers flight deals from Illinois to Calgary by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Calgary?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Calgary (average of $300). Flying from Illinois to Calgary in February is currently the most expensive (average of $402). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Calgary?

Book flights to Calgary if you plan to visit one of these locations
Canmore
Airdrie

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Alternative routes for Illinois to Calgary

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Illinois to Calgary

Discover the top 5 airlines that operate flights from Illinois to Calgary. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$97Average$250FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$101Average$393FlexibilityNo cancel feeOn-time69%
DeltaCheapest$108Average$307FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$142Average$238FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$187Average$545FlexibilityNo cancel feeOn-time71%

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