$93+ 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 5/26. 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 15, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $129 (Kiwi.com) |
One-way from | $93 (oojo) |
Popular in | December |
Cheapest in | May |
Average price | $201 |
Good round-trip deal | $240 or less |
Good one-way deal | $248 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 15, 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 15, 2025.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Flightnetwork deal was found by Cheapflights users on 4/14. 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 Flightnetwork 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 4/13. 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 Flightnetwork deal was found by Cheapflights users on 4/14. 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 Flightnetwork 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 4/15. 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 4/14. 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 American Airlines deal was found by Cheapflights users on 4/15. 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 Kissandfly.com deal was found by Cheapflights users on 4/15. 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 Air Canada deal was found by Cheapflights users on 4/14. 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 United Airlines deal was found by Cheapflights users on 4/14. 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 4/15. 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 American Airlines deal was found by Cheapflights users on 4/14. 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.
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 15, 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 8/22
12:15 pm-4:44 pm
Nonstop3h 29m
Chicago O'Hare Intl
Sun 9/7
5:30 pm-8:19 pm
Nonstop3h 49m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Thu 5/29
12:55 am-11:24 am
1 stop9h 29m
Chicago O'Hare Intl
Sun 6/1
5:02 am-6:21 pm
1 stop14h 19m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 5/30
1:30 pm-12:25 am
1 stop9h 55m
Chicago O'Hare Intl
Sun 6/1
5:02 am-6:21 pm
1 stop14h 19m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Wed 6/4
12:15 pm-4:44 pm
Nonstop3h 29m
Chicago O'Hare Intl
Sun 6/8
6:10 am-10:09 pm
1 stop16h 59m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 5/30
2:00 pm-9:40 pm
1 stop6h 40m
Chicago O'Hare Intl
Fri 6/6
1:40 pm-11:01 pm
1 stop10h 21m
CalgaryChicago
YYC - MDW
YYCMDW
Calgary
Thu 5/1
6:45 am-5:19 pm
1 stop9h 34m
Chicago Midway
Sat 5/3
1:16 pm-8:47 pm
1 stop8h 31m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Thu 8/28
6:29 am-10:54 am
Nonstop3h 25m
Chicago O'Hare Intl
Fri 9/5
8:25 pm-11:29 pm
Nonstop4h 04m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 5/30
6:30 am-8:21 pm
2 stops12h 51m
Chicago O'Hare Intl
Fri 6/6
1:40 pm-11:01 pm
1 stop10h 21m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 5/30
6:45 am-7:25 am
1 stop23h 40m
Chicago O'Hare Intl
Fri 6/6
8:30 pm-11:29 pm
Nonstop3h 59m
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Tue 9/9
7:00 am-3:16 pm
1 stop7h 16m
Lambert-St Louis
Tue 10/21
9:00 am-1:53 pm
1 stop5h 53m
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 15, 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 15, 2025.
The most flights from YYC to USIL are scheduled on a Thursday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 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 15, 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
Crew
Boarding
Entertainment
Comfort
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Crew
Boarding
Entertainment
Comfort
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Crew
Boarding
Entertainment
Comfort
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Crew
Boarding
Entertainment
Comfort
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Crew
Boarding
Entertainment
Comfort
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
Food
Crew
Boarding
Entertainment
Comfort
Overall
Reviews
Anonymous,Apr 2025
LAS - STS
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.
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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 15, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$123 | Average$429 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$139 | Average$201 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$205 | Average$359 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$480 | FlexibilityNo cancel fee | On-time69% |