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Cheap flights from Illinois to Calgary from C$ 101
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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYC
5 ago — 12 ago1
Round-trip
1 adult
Economy
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 31 julho 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 31 julho 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 31 julho 2025.
seg 15/95:30 p.m.ORD - YYC
Nonstop3h 49mWestJet
qua 24/912:15 p.m.YYC - ORD
Nonstop3h 28mWestJet
Deal found 29/7C$ 215
seg 15/96:20 p.m.ORD - YYC
1 stop7h 52mAir Canada
ter 23/91:10 a.m.YYC - ORD
1 stop7h 41mAir Canada
Deal found 29/7C$ 217
seg 15/93:50 p.m.ORD - YYC
1 stop8h 32mMultiple Airlines
qua 24/912:15 p.m.YYC - ORD
Nonstop3h 28mMultiple Airlines
Deal found 29/7C$ 218
qua 5/118:45 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
ter 11/1112:37 p.m.YYC - ORD
Nonstop3h 33mUnited Airlines
Deal found 29/7C$ 250
qua 5/118:45 p.m.ORD - YYC
1 stop15h 59mAmerican Airlines
ter 11/1112:45 p.m.YYC - ORD
1 stop8h 35mAmerican Airlines
Deal found 30/7C$ 284
ter 28/109:20 a.m.MDW - YYC
1 stop5h 30mDelta
ter 4/116:20 a.m.YYC - MDW
1 stop5h 48mDelta
Deal found 30/7C$ 346
qui 4/96:20 a.m.MDW - YYC
1 stop14h 40mMultiple Airlines
ter 9/912:30 a.m.YYC - MDW
1 stop14h 28mMultiple Airlines
Deal found 29/7C$ 429
sáb 13/99:56 a.m.STL - YYC
1 stop14h 23mAmerican Airlines
sáb 20/96:29 a.m.YYC - STL
1 stop13h 03mAmerican Airlines
Deal found 29/7C$ 451
sex 22/87:54 p.m.STL - YYC
1 stop19h 52mMultiple Airlines
sex 29/812:30 a.m.YYC - STL
1 stop12h 03mMultiple Airlines
Deal found 30/7C$ 491
sáb 6/99:15 a.m.STL - YYC
1 stop8h 47mAir Canada
seg 15/911:55 p.m.YYC - STL
2 stops13h 24mAir Canada
Deal found 29/7C$ 555
sáb 13/910:15 a.m.STL - YYC
2 stops11h 27mDelta
sáb 20/96:40 a.m.YYC - STL
1 stop8h 34mDelta
Deal found 29/7C$ 568
sáb 13/95:15 a.m.STL - YYC
1 stop17h 33mUnited Airlines
sáb 20/96:15 a.m.YYC - STL
1 stop16h 38mUnited Airlines
Deal found 30/7C$ 623
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 31 julho 2025.
Use the filters below to find and compare flights from Illinois to Calgary that are best for you.
Fly from
Illinois
Fly to
Calgary
Route
Depart
Return
Price
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
seg 15/9
5:30 p.m.-8:19 p.m.
Nonstop3h 49m
Calgary
qua 24/9
12:15 p.m.-4:43 p.m.
Nonstop3h 28m
C$ 215
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
seg 15/9
6:20 p.m.-1:12 a.m.
1 stop7h 52m
Calgary
ter 23/9
1:10 a.m.-9:51 a.m.
1 stop7h 41m
C$ 217
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
seg 15/9
3:50 p.m.-11:22 p.m.
1 stop8h 32m
Calgary
qua 24/9
12:15 p.m.-4:43 p.m.
Nonstop3h 28m
C$ 218
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
qua 5/11
8:45 a.m.-11:35 a.m.
Nonstop3h 50m
Calgary
ter 11/11
12:37 p.m.-5:10 p.m.
Nonstop3h 33m
C$ 250
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
qua 5/11
8:45 p.m.-11:44 a.m.
1 stop15h 59m
Calgary
ter 11/11
12:45 p.m.-10:20 p.m.
1 stop8h 35m
C$ 284
ChicagoCalgary
MDW - YYC
MDWYYC
Chicago Midway
ter 28/10
9:20 a.m.-1:50 p.m.
1 stop5h 30m
Calgary
ter 4/11
6:20 a.m.-1:08 p.m.
1 stop5h 48m
C$ 346
ChicagoCalgary
MDW - YYC
MDWYYC
Chicago Midway
qui 4/9
6:20 a.m.-8:00 p.m.
1 stop14h 40m
Calgary
ter 9/9
12:30 a.m.-3:58 p.m.
1 stop14h 28m
C$ 429
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
sáb 13/9
9:56 a.m.-11:19 p.m.
1 stop14h 23m
Calgary
sáb 20/9
6:29 a.m.-8:32 p.m.
1 stop13h 03m
C$ 451
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
sex 22/8
7:54 p.m.-2:46 p.m.
1 stop19h 52m
Calgary
sex 29/8
12:30 a.m.-1:33 p.m.
1 stop12h 03m
C$ 491
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
sáb 6/9
9:15 a.m.-5:02 p.m.
1 stop8h 47m
Calgary
seg 15/9
11:55 p.m.-2:19 p.m.
2 stops13h 24m
C$ 555
Showing 1-10 of 26 results
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.
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.
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 31 julho 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 31 julho 2025.
The most flights from USIL to YYC are scheduled on a Thursday (15 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 on average).
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 31 julho 2025.
Read through reviews of airlines operating flights from Illinois to Calgary, such as Porter Airlines,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Boarding
8.2
Comfort
8.0
Food
7.6
Overall
8.0
Crew
8.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Entertainment
7.0
Boarding
8.2
Comfort
8.0
Food
7.6
Overall
8.0
Crew
8.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Entertainment
7.0
Boarding
8.2
Comfort
8.0
Food
7.6
Overall
8.0
Crew
8.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Entertainment
7.0
Boarding
8.2
Comfort
8.0
Food
7.6
Overall
8.0
Crew
8.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Entertainment
7.0
Boarding
8.2
Comfort
8.0
Food
7.6
Overall
8.0
Crew
8.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
Entertainment
7.0
Boarding
8.2
Comfort
8.0
Food
7.6
Overall
8.0
Crew
8.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Jul 2025
LIS - YYZ
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 Calgary?
Book flights to Calgary if you plan to visit one of these locationsCanmore
Airdrie
Radium Hot Springs
Drumheller
Kananaskis
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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 2 airlines flying from Illinois to Calgary
Discover the top 2 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 31 julho 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 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.