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Cheap flights from Illinois to Calgary from C$ 98

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYC
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

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 29 October 2025.

Round-trip from

C$ 235

One-way from

C$ 98

Popular in

December

Cheapest in

October

Average price

C$ 298

Good round-trip deal

C$ 266 or less

Good one-way deal

C$ 165 or less
WestJet
  • WestJet
  • 20/2-23/2
  • Nonstop
  • 7h 30m total
  • Illinois to Calgary
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WestJet
  • WestJet
  • 26/4
  • Nonstop
  • 3h 49m total
  • Illinois to Calgary
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Highest demand for flights based on searches. 18% potential increase in price (C$ 136 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease (C$ 46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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

Enter your travel dates to find the best prices.

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 29 October 2025.

Fri 5/122:20 p.m.ORD - YYC
Nonstop3h 55mWestJet
Mon 8/129:00 a.m.YYC - ORD
Nonstop3h 35mWestJet
Deal found 27/10C$ 270
Sat 13/121:24 p.m.ORD - YYC
2 stops26h 46mMultiple Airlines
Fri 9/19:00 a.m.YYC - ORD
Nonstop3h 35mMultiple Airlines
Deal found 28/10C$ 284
Wed 10/128:45 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
Sat 13/1212:37 p.m.YYC - ORD
Nonstop3h 33mUnited Airlines
Deal found 29/10C$ 300
Sat 6/126:11 a.m.ORD - YYC
1 stop13h 58mMultiple Airlines
Tue 9/128:55 a.m.YYC - ORD
1 stop8h 51mMultiple Airlines
Deal found 27/10C$ 306
Tue 2/128:45 a.m.ORD - YYC
Nonstop3h 50mMultiple Airlines
Sat 6/125:35 a.m.YYC - ORD
1 stop8h 20mMultiple Airlines
Deal found 27/10C$ 312
Fri 7/112:20 p.m.ORD - YYC
Nonstop3h 55mMultiple Airlines
Mon 10/1112:30 a.m.YYC - ORD
1 stop9h 44mMultiple Airlines
Deal found 29/10C$ 314
Mon 8/122:20 p.m.ORD - YYC
Nonstop3h 55mMultiple Airlines
Wed 10/128:55 a.m.YYC - ORD
1 stop8h 51mMultiple Airlines
Deal found 29/10C$ 316
Wed 5/118:47 a.m.ORD - YYC
1 stop6h 34mUnited Airlines
Wed 12/1112:37 p.m.YYC - ORD
Nonstop3h 33mUnited Airlines
Deal found 27/10C$ 317
Sun 9/118:45 a.m.ORD - YYC
Nonstop3h 50mMultiple Airlines
Wed 12/115:35 a.m.YYC - ORD
1 stop8h 35mMultiple Airlines
Deal found 28/10C$ 320
Wed 10/121:50 p.m.MDW - YYC
1 stop8h 07mDelta
Sat 13/126:35 a.m.YYC - MDW
1 stop5h 35mDelta
Deal found 28/10C$ 351
Mon 17/111:37 p.m.MDW - YYC
1 stop23h 07mMultiple Airlines
Sat 17/17:35 p.m.YYC - MDW
1 stop13h 38mMultiple Airlines
Deal found 27/10C$ 356
Thu 6/116:30 a.m.MDW - YYC
1 stop11h 36mMultiple Airlines
Mon 10/1112:30 a.m.YYC - MDW
1 stop10h 08mMultiple Airlines
Deal found 29/10C$ 376

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 629,999 searches. Data last updated 29 October 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 2/2

8:45 a.m.-11:35 a.m.

Nonstop3h 50m

Calgary

Thu 5/2

12:37 p.m.-5:08 p.m.

Nonstop3h 31m

C$ 298

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Mon 2/2

8:45 a.m.-11:35 a.m.

Nonstop3h 50m

Calgary

Thu 5/2

5:35 a.m.-3:10 p.m.

1 stop8h 35m

C$ 317

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Sat 8/11

8:47 a.m.-9:53 p.m.

1 stop14h 06m

Calgary

Sat 15/11

12:37 p.m.-5:10 p.m.

Nonstop3h 33m

C$ 317

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Sat 7/2

12:53 p.m.-9:53 p.m.

1 stop10h 00m

Calgary

Fri 13/2

12:37 p.m.-5:09 p.m.

Nonstop3h 32m

C$ 317

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Sun 9/11

8:45 a.m.-11:35 a.m.

Nonstop3h 50m

Calgary

Wed 12/11

5:35 a.m.-3:10 p.m.

1 stop8h 35m

C$ 320

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Sat 10/1

12:53 p.m.-9:53 p.m.

1 stop10h 00m

Calgary

Fri 16/1

5:35 a.m.-3:10 p.m.

1 stop8h 35m

C$ 334

ChicagoCalgary

MDW - YYC

MDWYYC

Chicago Midway

Tue 2/12

1:50 p.m.-8:57 p.m.

1 stop8h 07m

Calgary

Sat 6/12

6:35 a.m.-1:10 p.m.

1 stop5h 35m

C$ 351

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Fri 21/11

1:38 p.m.-11:10 p.m.

1 stop10h 32m

Calgary

Mon 1/12

12:41 p.m.-9:25 p.m.

1 stop7h 44m

C$ 351

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Wed 26/11

6:00 a.m.-1:53 p.m.

1 stop8h 53m

Calgary

Mon 1/12

12:41 p.m.-9:25 p.m.

1 stop7h 44m

C$ 351

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

Thu 27/11

6:00 a.m.-1:53 p.m.

1 stop8h 53m

Calgary

Thu 4/12

7:35 a.m.-6:45 p.m.

1 stop10h 10m

C$ 351

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 53 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, April is the cheapest month in which you can book a flight from Illinois to Calgary (average of C$ 112). Flying from Illinois to Calgary in December is currently the most expensive (average of C$ 225). 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 29 October 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 38% on flights from Illinois to Calgary by exploring options for tickets in the evening.

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?

    Calgary (YYC), located 9.3 km from the city centre, is the airport you fly into when you book flights from Illinois to Calgary.

  • How long is the flight from Illinois to Calgary?

    There are many flights that can get you from Illinois to Calgary in 3h 50m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. Illinois and Calgary are separated by a distance of 2223 km. Both multi-stop and direct flights can be found to your destination and back.

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

    The most popular route from Illinois to Calgary is Chicago O'Hare Intl - Calgary. You may also consider Chicago Midway - Calgary or Lambert-St Louis - Calgary.

  • 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: Air Canada (74%), United Airlines (74%), British Airways (73%).

  • What are the cheapest flights from Illinois to Calgary?

    The cheapest flight price from Illinois to Calgary is C$ 123. On average you can expect to pay C$ 249. The most popular route, (Chicago O'Hare Intl - Calgary), can usually be booked for C$ 260.

  • 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, April is the cheapest month in which you can book a flight from Illinois to Calgary (average of C$ 112). Flying from Illinois to Calgary in December is currently the most expensive (average of C$ 225). 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

Travelling to a place near Calgary?

Book flights to Calgary if you plan to visit one of these locations
Canmore
Radium Hot Springs
Airdrie
Drumheller
Kananaskis

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Top airline flying from Illinois to Calgary

Discover the top airline 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 629,999 searches. Data last updated 29 October 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 214AverageC$ 351FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Illinois to Calgary?

When you search for this flight from Illinois to Calgary, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Calgary?

Cheapflights simply makes it quick and affordable to book flights from Illinois to Calgary by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Illinois to Calgary with no change fees?

Yes! Cheapflights helps users easily find flights from Illinois to Calgary with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Calgary become cheaper?

Of course! You can now track prices for flights from Illinois to Calgary and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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