HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$86+ Cheap flights from Calgary (YYC) to Illinois

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — ORD
Dec 26 — Jan 21
Thu 12/26
Thu 1/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Calgary to Illinois with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Calgary to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 21, 2024.

Round-trip from

$179
(Air Canada)

One-way from

$86
(Trip.com)
From Calgary to Illinois
Search Deals
One-way flight from Calgary to Illinois
Search Deals

Find flight deals from Calgary to Illinois

Cheapest flights from Calgary to Illinois
Explore the most affordable flight options available from Calgary to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2024.

This American Airlines deal was found by Cheapflights users on 12/21. 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 12/266:29 amYYC - ORD
1 stop15h 40mAmerican Airlines
Wed 1/17:09 amORD - YYC
1 stop15h 46mAmerican Airlines
Deal found 12/21$302
This United deal was found by Cheapflights users on 12/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/231:30 pmYYC - ORD
1 stop8h 50mMultiple Airlines
Fri 1/38:30 pmORD - YYC
1 stop17h 23mMultiple Airlines
Deal found 12/19$411
This Air Canada deal was found by Cheapflights users on 12/21. 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 12/2412:55 amYYC - ORD
1 stop8h 59mAir Canada
Thu 1/212:56 pmORD - YYC
1 stop11h 22mAir Canada
Deal found 12/21$425
This Delta deal was found by Cheapflights users on 12/21. 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.
Wed 12/257:00 amYYC - ORD
2 stops13h 17mDelta
Wed 1/17:30 amORD - YYC
1 stop11h 43mDelta
Deal found 12/21$490
This United Airlines deal was found by Cheapflights users on 12/20. 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.
Mon 12/231:30 pmYYC - ORD
1 stop8h 50mUnited Airlines
Fri 1/38:45 amORD - YYC
Nonstop3h 54mUnited Airlines
Deal found 12/20$545
This WestJet deal was found by Cheapflights users on 12/20. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/237:00 amYYC - STL
1 stop6h 49mWestJet
Mon 12/236:04 pmSTL - YYC
1 stop28h 03mWestJet
Deal found 12/20$610
This Air Canada deal was found by Cheapflights users on 12/20. 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.
Mon 12/236:15 amYYC - STL
1 stop7h 51mAir Canada
Sun 12/293:50 pmSTL - YYC
1 stop10h 28mAir Canada
Deal found 12/20$613
This American Airlines deal was found by Cheapflights users on 12/20. 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.
Mon 12/236:29 amYYC - STL
1 stop9h 10mAmerican Airlines
Sun 12/299:40 amSTL - YYC
1 stop13h 10mAmerican Airlines
Deal found 12/20$616
This United deal was found by Cheapflights users on 12/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/231:30 pmYYC - STL
2 stops21h 56mMultiple Airlines
Sun 12/293:50 pmSTL - YYC
1 stop10h 28mMultiple Airlines
Deal found 12/20$672
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Sat 12/284:35 pmYYC - MDW
1 stop16h 14mMultiple Airlines
Sat 1/44:06 pmMDW - YYC
1 stop8h 44mMultiple Airlines
Deal found 12/21$783
This Justfly.com deal was found by Cheapflights users on 12/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2512:20 amYYC - ORD
2 stops17h 28mWestJet
Sat 1/47:30 amORD - YYC
1 stop29h 20mWestJet
Deal found 12/21$825
This Delta deal was found by Cheapflights users on 12/21. 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.
Thu 12/267:00 amYYC - MDW
1 stop9h 44mDelta
Thu 1/29:30 amMDW - YYC
2 stops12h 37mDelta
Deal found 12/21$879

Find flights from Calgary to Illinois within your budget

Customize your flight search to find flights from Calgary to Illinois 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 December 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 1/8

12:50 am-10:10 am

1 stop8h 20m

Chicago O'Hare Intl

Tue 1/14

12:51 pm-9:18 pm

1 stop9h 27m

$179

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Mon 3/17

7:20 pm-9:33 am

1 stop13h 13m

Chicago O'Hare Intl

Tue 3/18

12:58 pm-11:18 pm

1 stop11h 20m

$181

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 5/29

12:15 pm-4:44 pm

Nonstop3h 29m

Chicago O'Hare Intl

Sun 6/1

5:30 pm-8:19 pm

Nonstop3h 49m

$208

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 1/10

6:35 am-5:29 pm

1 stop9h 54m

Chicago O'Hare Intl

Tue 1/14

5:00 pm-11:18 pm

1 stop7h 18m

$216

CalgaryChicago

YYC - MDW

YYCMDW

Calgary

Fri 2/7

6:35 am-5:43 pm

1 stop10h 08m

Chicago Midway

Sun 2/9

9:33 am-8:53 pm

2 stops12h 20m

$216

CalgaryChicago

YYC - MDW

YYCMDW

Calgary

Thu 1/23

12:30 am-5:53 pm

1 stop16h 23m

Chicago Midway

Sun 1/26

12:43 pm-10:55 pm

1 stop11h 12m

$283

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sun 1/19

6:15 am-3:06 pm

1 stop7h 51m

Lambert-St Louis

Sun 1/26

3:50 pm-11:18 pm

1 stop8h 28m

$290

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/9

6:35 am-9:49 pm

2 stops14h 14m

Lambert-St Louis

Sat 1/18

6:30 am-8:53 pm

2 stops15h 23m

$294

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 1/18

12:30 am-9:22 am

1 stop7h 52m

Lambert-St Louis

Sun 1/26

6:00 am-5:51 pm

2 stops12h 51m

$346

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Mon 3/17

1:22 pm-5:53 pm

Nonstop3h 31m

Chicago O'Hare Intl

Tue 3/18

9:45 am-12:42 pm

Nonstop3h 57m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Calgary to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Calgary 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.

Travel insights for flights from Calgary to Illinois

Get recent, data-driven insights about flights from Calgary to Illinois including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Calgary to Illinois (average of $245). Flying from Calgary to Illinois in March is currently the most expensive (average of $317). 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 YYC to IL?

Find hourly flight availability from Calgary to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2024.

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

Weekly flight availability from Calgary to Illinois

Explore weekly flight availability from Calgary to Illinois. 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 December 21, 2024.

The most flights from YYC to USIL are scheduled on a Saturday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 21, 2024.
Read through reviews of airlines operating flights from Calgary to Illinois, such as Air Canada, WestJet and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,537 reviews

Food

7.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines
8.0
Very good
9,537 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Food

7.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Delta
8.0
Very good
8,597 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Food

7.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Porter Airlines
7.9
Good
283 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Food

7.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

United Airlines
7.4
Good
9,039 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Food

7.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Food

7.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Related info for your journey

Find useful and relevant information for your journey from Calgary to Illinois. 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 from for flights from Calgary to Illinois?

    Calgary (YYC) is the airport you will fly out of if you book a flight from Calgary to Illinois. It is only a 5.8 mi journey to Calgary (YYC) from Calgary’s city center.

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

    The cheapest airlines for a one-way flight from Calgary to Illinois are WestJet ($86), Air Canada ($97), and United Airlines ($121).

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

    Most travelers choose Calgary - Chicago O'Hare Intl, Calgary - Chicago Midway or Calgary - Lambert-St Louis when deciding on the best route from Calgary to Illinois.

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

    Consider Air Canada (80%), Emirates (80%) or United Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from Calgary to Illinois.

  • What are the cheapest flights from Calgary to Illinois?

    Looking for the cheapest flight from Calgary to Illinois? While on average our users pay $573, our data indicates the cheapest price to be $106. The most popular route (Calgary - Chicago O'Hare Intl), is priced around $155.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Calgary to Illinois 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 Calgary to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Calgary to Illinois (average of $245). Flying from Calgary to Illinois in March is currently the most expensive (average of $317). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Calgary to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Edmonton to Las Vegas flights
Calgary to Las Vegas flights
Calgary to Los Angeles flights
Calgary to Orlando flights
Calgary to Newark flights
Calgary to Seattle flights
Calgary to John F Kennedy Intl flights
Edmonton to Los Angeles flights
Calgary to San Francisco flights
Edmonton to Sky Harbor Intl flights
Calgary to Sky Harbor Intl flights
Calgary to Hobby flights
Calgary to Fort Lauderdale flights
Calgary to Dallas/Fort Worth flights
Calgary to Honolulu flights
Calgary to Kahului flights
Calgary to George Bush Intcntl flights
Edmonton to San Francisco flights
Edmonton to Orlando flights
Edmonton to Palm Springs flights
Calgary to Palm Springs flights
Calgary to O'Hare Intl flights
Calgary to San Diego flights
Calgary to Denver flights
Calgary to Miami flights
Calgary to LaGuardia flights
Edmonton to Newark flights
Edmonton to Hobby flights
Calgary to Tampa flights
Edmonton to Miami flights
Edmonton to Ontario flights
Calgary to Nashville flights
Edmonton to Seattle flights
Edmonton to John F Kennedy Intl flights
Calgary to Ontario flights
Edmonton to Dallas/Fort Worth flights
Edmonton to LaGuardia flights
Edmonton to Fort Lauderdale flights
Edmonton to Kahului flights
Edmonton to Honolulu flights
Calgary to Santa Ana flights
Calgary to Midway flights
Edmonton to George Bush Intcntl flights
Calgary to Salt Lake City flights
Edmonton to Denver flights
Calgary to Boston flights
Calgary to Kailua-Kona flights
Calgary to Dulles Intl flights
Calgary to Atlanta flights
Calgary to Sacramento flights

Top 5 airlines flying from Calgary to Illinois

Discover the top 5 airlines that operate flights from Calgary to Illinois. 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 December 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$186Average$301FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$213Average$413FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$219Average$443FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$226Average$415FlexibilityNo cancel feeOn-time69%
DeltaCheapest$268Average$332FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.