$113+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
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
Keep the following information in mind while searching for Calgary to Illinois flight deals. Data was last updated April 30, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $186 (United Airlines) |
One-way from | $113 (Air Canada) |
Popular in | December |
Cheapest in | May |
Average price | $205 |
Good round-trip deal | $162 or less |
Good one-way deal | $228 or less |
Find flight deals from Calgary to Illinois
Cheapest flights from Calgary to IllinoisExplore 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 April 30, 2025.
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 April 30, 2025.
This United Airlines deal was found by Cheapflights users on 4/28. 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.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
This Air Canada deal was found by Cheapflights users on 4/28. 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.
This American Airlines deal was found by Cheapflights users on 4/28. 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.
This United deal was found by Cheapflights users on 4/28. 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.
This Delta deal was found by Cheapflights users on 4/28. 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.
This Delta deal was found by Cheapflights users on 4/28. 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.
This Vliegwinkel deal was found by Cheapflights users on 4/29. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kissandfly.com deal was found by Cheapflights users on 4/28. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kissandfly.com deal was found by Cheapflights users on 4/28. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Cheapflights Fare Finder
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 April 30, 2025.
Use the filters below to find and compare flights from Calgary to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 5/23
8:30 am-1:03 pm
Nonstop3h 33m
Chicago O'Hare Intl
Tue 5/27
7:10 am-9:48 pm
1 stop15h 38m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Tue 6/10
12:15 pm-4:44 pm
Nonstop3h 29m
Chicago O'Hare Intl
Tue 6/24
5:30 pm-8:19 pm
Nonstop3h 49m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 5/23
8:10 am-4:51 pm
1 stop7h 41m
Chicago O'Hare Intl
Tue 5/27
4:43 pm-1:03 am
1 stop9h 20m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Wed 8/13
6:29 am-10:54 am
Nonstop3h 25m
Chicago O'Hare Intl
Mon 8/18
8:34 pm-11:29 pm
Nonstop3h 55m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Mon 5/12
1:30 pm-9:17 pm
1 stop6h 47m
Chicago O'Hare Intl
Tue 5/13
2:22 pm-10:38 pm
1 stop9h 16m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Wed 5/28
2:00 pm-9:40 pm
1 stop6h 40m
Chicago O'Hare Intl
Mon 6/2
11:03 am-11:01 pm
2 stops12h 58m
CalgaryChicago
YYC - MDW
YYCMDW
Calgary
Mon 5/26
6:30 am-1:15 pm
1 stop5h 45m
Chicago Midway
Mon 6/2
9:20 am-11:01 pm
2 stops14h 41m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Thu 5/29
8:30 am-1:03 pm
Nonstop3h 33m
Chicago O'Hare Intl
Fri 6/6
7:58 pm-7:25 am
1 stop12h 27m
CalgaryChicago
YYC - MDW
YYCMDW
Calgary
Fri 6/13
7:00 am-11:18 pm
2 stops15h 18m
Chicago Midway
Mon 6/16
6:20 am-8:05 pm
1 stop14h 45m
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Fri 6/13
6:15 am-9:03 pm
1 stop13h 48m
Lambert-St Louis
Mon 6/23
5:27 pm-10:53 pm
1 stop6h 26m
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.
Cheapflights Insights
Everything you need to know about your flight from Calgary to Illinois
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 $321). 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 April 30, 2025.
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 April 30, 2025.
The most flights from YYC to USIL are scheduled on a Tuesday (6 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (3 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 April 30, 2025.
Read through reviews of airlines operating flights from Calgary to Illinois, such as Alaska Airlines, Porter Airlines 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.
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
James,Apr 2025
LAX - SFO
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
James,Apr 2025
LAX - SFO
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
James,Apr 2025
LAX - SFO
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
James,Apr 2025
LAX - SFO
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
James,Apr 2025
LAX - SFO
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
James,Apr 2025
LAX - SFO
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.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Calgary to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Calgary to Illinois
Discover the top 4 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 April 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$123 | Average$468 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$139 | Average$189 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$205 | Average$354 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$479 | FlexibilityNo cancel fee | On-time69% |