Cheap flights from Illinois to Calgary from C$ 107
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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
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 25 April 2025.
Find flight deals from Illinois to Calgary
Cheapest flights from Illinois to CalgaryExplore 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 25 April 2025.
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 25 April 2025.
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 25 April 2025.
Use the filters below to find and compare flights from Illinois to Calgary that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Thu 8/5
8:45 a.m.-9:48 p.m.
1 stop14h 03m
Calgary
Thu 8/5
12:55 a.m.-11:32 a.m.
1 stop9h 37m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Thu 8/5
8:45 a.m.-9:48 p.m.
1 stop14h 03m
Calgary
Thu 8/5
11:55 p.m.-8:03 a.m.
1 stop7h 08m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Fri 9/5
8:45 a.m.-11:41 a.m.
Nonstop3h 56m
Calgary
Mon 12/5
12:43 p.m.-5:10 p.m.
Nonstop3h 27m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Sun 25/5
5:30 p.m.-8:19 p.m.
Nonstop3h 49m
Calgary
Sun 1/6
12:15 p.m.-4:44 p.m.
Nonstop3h 29m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Thu 5/6
8:30 p.m.-11:29 p.m.
Nonstop3h 59m
Calgary
Thu 12/6
6:29 a.m.-10:54 a.m.
Nonstop3h 25m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Fri 9/5
1:40 p.m.-11:01 p.m.
1 stop10h 21m
Calgary
Sat 17/5
2:00 p.m.-9:40 p.m.
1 stop6h 40m
ChicagoCalgary
MDW - YYC
MDWYYC
Chicago Midway
Thu 8/5
9:16 a.m.-8:40 p.m.
2 stops12h 24m
Calgary
Sun 11/5
6:30 a.m.-1:15 p.m.
1 stop5h 45m
ChicagoCalgary
MDW - YYC
MDWYYC
Chicago Midway
Fri 8/8
6:20 a.m.-8:00 p.m.
1 stop14h 40m
Calgary
Mon 11/8
12:30 a.m.-10:40 a.m.
1 stop9h 10m
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Tue 10/6
8:35 a.m.-11:29 p.m.
1 stop15h 54m
Calgary
Wed 18/6
6:29 a.m.-8:30 p.m.
1 stop13h 01m
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sun 20/7
6:05 a.m.-10:17 p.m.
2 stops17h 12m
Calgary
Fri 25/7
4:20 p.m.-9:11 a.m.
1 stop15h 51m
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.
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, January is the cheapest month in which you can book a flight from Illinois to Calgary (average of C$ 139). Flying from Illinois to Calgary in July is currently the most expensive (average of C$ 263). 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 25 April 2025.
When flying from Illinois to Calgary, 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 Illinois to Calgary
Explore weekly flight availability from Illinois to Calgary. 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 25 April 2025.
The most flights from USIL to YYC are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).
Rainfall in Calgary by month
Plan your trip to Calgary by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Calgary ranges from 9.0 - 94.0 mm per month. June is typically the wettest month, when rainfall can reach 94.0 mm. January is typically the driest time to visit Calgary when rainfall is around 9.0 mm.
Temperature in Calgary by month
Plan your trip to Calgary by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Calgary, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -7.0 C).
Reviews of airlines servicing Calgary
Get insights into the airlines that provide service to Calgary. 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 Calgary. Reviews last updated 25 April 2025.
See what other customers who have flown with Alaska Airlines, Porter Airlines and Delta from Illinois to Calgary have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
Boarding
Entertainment
Crew
Comfort
Food
Reviews
Anonymous,Apr 2025
LAS - STS
Overall
Boarding
Entertainment
Crew
Comfort
Food
Reviews
Anonymous,Apr 2025
LAS - STS
Overall
Boarding
Entertainment
Crew
Comfort
Food
Reviews
Anonymous,Apr 2025
LAS - STS
Overall
Boarding
Entertainment
Crew
Comfort
Food
Reviews
Anonymous,Apr 2025
LAS - STS
Overall
Boarding
Entertainment
Crew
Comfort
Food
Reviews
Anonymous,Apr 2025
LAS - STS
Overall
Boarding
Entertainment
Crew
Comfort
Food
Reviews
Anonymous,Apr 2025
LAS - STS
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.
Travelling to a place near Illinois?
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Alternative routes for Illinois to Calgary
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Illinois to Calgary
Discover the top 3 airlines 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 25 April 2025.
Fly with Cheapflights
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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.