Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Calgary to Illinois from $113

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Calgary to Illinois departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Calgary to Illinois

Cheap round-trip flights

WestJet Logo
12:15 pm - 4:43 pmYYC-ORD
3h 28mnonstop
WestJet Logo
5:30 pm - 8:19 pmORD-YYC
3h 49mnonstop
$156WestJet
Find Deal
Fri, Oct 3 - Sun, Oct 5
WestJet Logo
9:00 am - 1:35 pmYYC-ORD
3h 35mnonstop
WestJet Logo
8:45 am - 11:35 amORD-YYC
3h 50mnonstop
$161WestJet
Find Deal
Sun, Oct 26 - Sat, Nov 1
American Airlines Logo
1:29 pm - 5:54 pmYYC-ORD
3h 25mnonstop
American Airlines Logo
8:45 pm - 11:44 amORD-YYC
15h 59m1 stop
$168American Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
United Airlines Logo
12:37 pm - 5:08 pmYYC-ORD
3h 31mnonstop
United Airlines Logo
1:55 pm - 9:53 pmORD-YYC
8h 58m1 stop
$172United Airlines
Find Deal
Mon, Feb 2 - Mon, Feb 9
Air Canada Logo
12:45 am - 11:18 amYYC-ORD
9h 33m1 stop
Air Canada Logo
10:00 am - 6:54 pmORD-YYC
9h 54m1 stop
$176Air Canada
Find Deal
Mon, Oct 27 - Tue, Nov 4
United Airlines Logo
6:15 am - 11:59 pmYYC-ORD
16h 44m1 stop
United Airlines Logo
7:10 am - 9:53 pmORD-YYC
15h 43m1 stop
$178United Airlines
Find Deal
Thu, Dec 11 - Mon, Dec 15
Air Canada Logo
5:45 am - 3:10 pmYYC-ORD
8h 25m1 stop
Air Canada Logo
2:00 pm - 8:39 pmORD-YYC
7h 39m1 stop
$182Air Canada
Find Deal
Tue, Oct 28 - Tue, Nov 4
American Airlines Logo
1:29 pm - 5:54 pmYYC-ORD
3h 25mnonstop
American Airlines Logo
5:00 am - 11:59 amORD-YYC
7h 59m1 stop
$194American Airlines
Find Deal
Sun, Oct 26 - Sat, Nov 1
Delta Logo
7:35 am - 6:45 pmYYC-ORD
10h 10m1 stop
Delta Logo
1:38 pm - 11:13 pmORD-YYC
10h 35m1 stop
$223Delta
Find Deal
Thu, Dec 11 - Mon, Dec 15
Delta Logo
7:45 am - 6:41 pmYYC-ORD
9h 56m1 stop
Delta Logo
2:10 pm - 11:02 pmORD-YYC
9h 52m1 stop
$243Delta
Find Deal
Fri, Oct 17 - Sun, Oct 19

United Airlines flights from Calgary to Illinois

Our best United Airlines deals on Calgary to Illinois flight tickets
United Airlines
Feb 2
YYC12:37 pmCalgary
3h 31m
ORD5:08 pmChicago O'Hare Intl
Feb 9
ORD1:55 pmChicago O'Hare Intl
8h 58m
1 stop
YYC9:53 pmCalgary
$172
Find similar
United Airlines
Dec 11
YYC6:15 amCalgary
16h 44m
1 stop
ORD11:59 pmChicago O'Hare Intl
Dec 15
ORD7:10 amChicago O'Hare Intl
15h 43m
1 stop
YYC9:53 pmCalgary
$178
Find similar
United Airlines
Oct 11
YYC6:15 amCalgary
14h 15m
1 stop
ORD9:30 pmChicago O'Hare Intl
Oct 18
ORD5:01 amChicago O'Hare Intl
9h 52m
1 stop
YYC1:53 pmCalgary
$202
Find similar

American Airlines flights from Calgary to Illinois

Our best American Airlines deals on Calgary to Illinois flight tickets
American Airlines
Oct 28
YYC1:29 pmCalgary
3h 25m
ORD5:54 pmChicago O'Hare Intl
Nov 4
ORD8:45 pmChicago O'Hare Intl
15h 59m
1 stop
YYC11:44 amCalgary
$168
Find similar
American Airlines
Oct 26
YYC1:29 pmCalgary
3h 25m
ORD5:54 pmChicago O'Hare Intl
Nov 1
ORD5:00 amChicago O'Hare Intl
7h 59m
1 stop
YYC11:59 amCalgary
$194
Find similar
American Airlines
Oct 24
YYC12:54 pmCalgary
9h 48m
1 stop
ORD11:42 pmChicago O'Hare Intl
Oct 26
ORD9:49 amChicago O'Hare Intl
3h 45m
YYC12:34 pmCalgary
$246
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 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 10/3

12:15 pm-4:43 pm

Nonstop3h 28m

Chicago O'Hare Intl

Sun 10/5

5:30 pm-8:19 pm

Nonstop3h 49m

$156

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sun 10/26

9:00 am-1:35 pm

Nonstop3h 35m

Chicago O'Hare Intl

Sat 11/1

8:45 am-11:35 am

Nonstop3h 50m

$161

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Tue 10/28

1:29 pm-5:54 pm

Nonstop3h 25m

Chicago O'Hare Intl

Tue 11/4

8:45 pm-11:44 am

1 stop15h 59m

$168

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Mon 2/2

12:37 pm-5:08 pm

Nonstop3h 31m

Chicago O'Hare Intl

Mon 2/9

1:55 pm-9:53 pm

1 stop8h 58m

$172

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Mon 10/27

12:45 am-11:18 am

1 stop9h 33m

Chicago O'Hare Intl

Tue 11/4

10:00 am-6:54 pm

1 stop9h 54m

$176

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 12/11

6:15 am-11:59 pm

1 stop16h 44m

Chicago O'Hare Intl

Mon 12/15

7:10 am-9:53 pm

1 stop15h 43m

$178

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Tue 10/28

5:45 am-3:10 pm

1 stop8h 25m

Chicago O'Hare Intl

Tue 11/4

2:00 pm-8:39 pm

1 stop7h 39m

$182

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sun 10/26

1:29 pm-5:54 pm

Nonstop3h 25m

Chicago O'Hare Intl

Sat 11/1

5:00 am-11:59 am

1 stop7h 59m

$194

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 12/11

7:35 am-6:45 pm

1 stop10h 10m

Chicago O'Hare Intl

Mon 12/15

1:38 pm-11:13 pm

1 stop10h 35m

$223

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 10/17

7:45 am-6:41 pm

1 stop9h 56m

Chicago O'Hare Intl

Sun 10/19

2:10 pm-11:02 pm

1 stop9h 52m

$243

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Illinois from

How to get the cheapest flight ticket from Calgary to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Calgary is in April. Flight prices, which tend to average around $191, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $195.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Calgary to Illinois is on a Sunday when prices can be found for as low as $171. Flights from Calgary to Illinois on a Monday will generally be more expensive and average around $478. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Calgary to Illinois during this time can be as low as $215. Flights at noon are often more expensive with an average ticket price of $709.

What is the cheapest Calgary to Illinois flight route?

Fly from Calgary to Chicago O'Hare Intl for the best Calgary - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $273 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Calgary for as low as $199 on momondo.

What cabin class options are available on Calgary to Illinois flights?

There are 4 cabin classes available to choose from on Calgary to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Calgary to Illinois flights?

No. A direct flight is the cheapest option for a flight between Calgary to Illinois.

Cheap Calgary to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Calgary to Illinois

Best Price Found

$208

Fastest flight time

3h 25m

Direct flights

Every day

Airports in Illinois

1 airport
The best one-way flight to Illinois from Calgary in the past 72 hours is $208. The best round-trip flight deal from Calgary to Illinois found on momondo in the last 72 hours is $235.
The fastest flight from Calgary to Illinois takes 3h 25m
Direct flights go from Calgary to Illinois every day.
There is 1 airport near Illinois: Chicago O'Hare Intl (ORD)
Search flight deals

  • When did momondo last update prices for flights from Calgary Airport to Illinois?

    Prices for flights from Calgary Airport to Illinois were last updated today.

  • How many operators does momondo search for flights from Calgary Airport to Illinois?

  • How old do you have to be to fly from Calgary Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Calgary Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Calgary to Illinois?

Best airlines flying from Calgary to Illinois

Compare and see reviews for airlines that fly from Calgary to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $109Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
WestJetPriceFrom $138Free CancellationRating
7.2
3,091 reviews
Search WestJet flights
American AirlinesPriceFrom $208Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $239Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Calgary to Illinois?

It is quick and easy to find Calgary to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Calgary to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Calgary with this policy.

How can momondo help me find flights from Calgary to Illinois?

Once all potential Calgary to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Calgary to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Calgary to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $49
Flights to Los Angelesfrom $49
Flights to Miamifrom $49
Flights to Chicagofrom $49
Flights to Orlandofrom $59
Flights to Las Vegasfrom $49
Flights to San Franciscofrom $58
Flights to Washington, D.C.from $54
Flights to Bostonfrom $62
Flights to Atlantafrom $49
Flights to Dallasfrom $68
Flights to Seattlefrom $69