Cheap flights from Calgary to Illinois from C$ 138
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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
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 21 January 2025.
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 21 January 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 21 January 2025.
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 629,999 searches. Data last updated 21 January 2025.
Fly from
Fly to
Route
Depart
Return
Price
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Thu 20/2
11:30 a.m.-3:56 p.m.
Nonstop3h 26m
Chicago O'Hare Intl
Thu 27/2
4:45 p.m.-7:36 p.m.
Nonstop3h 51m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Thu 6/3
2:09 p.m.-12:23 a.m.
1 stop9h 14m
Chicago O'Hare Intl
Sun 9/3
5:00 a.m.-6:17 p.m.
1 stop14h 17m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Thu 20/2
11:30 a.m.-3:56 p.m.
Nonstop3h 26m
Chicago O'Hare Intl
Thu 27/2
5:10 a.m.-11:50 p.m.
2 stops19h 40m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Mon 3/2
8:30 a.m.-6:38 p.m.
1 stop9h 08m
Chicago O'Hare Intl
Tue 11/2
2:05 p.m.-10:12 p.m.
1 stop9h 07m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Tue 18/2
6:35 a.m.-8:53 p.m.
2 stops13h 18m
Chicago O'Hare Intl
Tue 25/2
12:15 p.m.-8:53 p.m.
1 stop9h 38m
CalgaryChicago
YYC - MDW
YYCMDW
Calgary
Mon 3/2
6:35 a.m.-5:43 p.m.
1 stop10h 08m
Chicago Midway
Tue 11/2
9:33 a.m.-8:53 p.m.
2 stops12h 20m
CalgaryChicago
YYC - MDW
YYCMDW
Calgary
Thu 6/2
4:35 p.m.-11:44 a.m.
2 stops18h 09m
Chicago Midway
Sun 9/2
12:43 p.m.-10:55 p.m.
1 stop11h 12m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Tue 10/6
6:29 a.m.-10:53 a.m.
Nonstop3h 24m
Chicago O'Hare Intl
Tue 17/6
8:20 p.m.-11:20 p.m.
Nonstop4h 00m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Thu 20/2
6:59 p.m.-1:04 p.m.
2 stops17h 05m
Chicago O'Hare Intl
Mon 24/2
7:00 p.m.-6:09 p.m.
2 stops24h 09m
CalgaryChicago
YYC - MDW
YYCMDW
Calgary
Thu 6/3
12:30 a.m.-10:12 a.m.
1 stop8h 42m
Chicago Midway
Tue 11/3
1:16 p.m.-8:42 p.m.
1 stop8h 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.
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, January is the cheapest month in which you can book a flight from Calgary to Illinois (average of C$ 261). Flying from Calgary to Illinois in March is currently the most expensive (average of C$ 355). 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 21 January 2025.
When flying from Calgary to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 21 January 2025.
The most flights from YYC to USIL are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, 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 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.
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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
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 21 January 2025.
Read reviews from past customers who have flown Delta, Air Canada and WestJet from Calgary to Illinois. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Boarding
Food
Entertainment
Overall
Comfort
Reviews
Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Crew
Boarding
Food
Entertainment
Overall
Comfort
Reviews
Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Crew
Boarding
Food
Entertainment
Overall
Comfort
Reviews
Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Crew
Boarding
Food
Entertainment
Overall
Comfort
Reviews
Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Crew
Boarding
Food
Entertainment
Overall
Comfort
Reviews
Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Crew
Boarding
Food
Entertainment
Overall
Comfort
Reviews
Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
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 6 airlines flying from Calgary to Illinois
Discover the top 6 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 629,999 searches. Data last updated 21 January 2025.
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 Calgary to Illinois?
When you search for this flight from Calgary to Illinois, 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 Calgary to Illinois?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Calgary.
Can Cheapflights find flights from Calgary to Illinois with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Calgary to Illinois flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Calgary to Illinois become cheaper?
Of course! You can now track prices for flights from Calgary to Illinois 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.