How does KAYAK find such low prices on flights from Illinois to Calgary?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Calgary. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Calgary?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Calgary from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Calgary?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Calgary with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Calgary?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Calgary from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$107 CHEAP FLIGHTS from Illinois to Calgary

YYC

KAYAK searches hundreds of travel sites at once for deals on flights to Calgary

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Cheap Flights from Illinois to Calgary

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Calgary

Mon, May 25 - Sat, May 30

7:44 pm - 10:37 pm

ORD

YYC

3h 53mnonstop

6:00 am - 9:39 pm

YYC

ORD

14h 39m

1 stop

$235United Airlines

Tue, May 26 - Tue, Jun 2

5:30 pm - 8:25 pm

ORD

YYC

3h 55mnonstop

12:00 pm - 4:40 pm

YYC

ORD

3h 40mnonstop

$236WestJet

Mon, May 25 - Mon, Jun 1

7:44 pm - 10:37 pm

ORD

YYC

3h 53mnonstop

8:30 am - 1:07 pm

YYC

ORD

3h 37mnonstop

$237United Airlines

Sat, May 23 - Sat, May 30

5:30 pm - 8:25 pm

ORD

YYC

3h 55mnonstop

7:05 am - 4:20 pm

YYC

ORD

8h 15m

1 stop

$243Multiple Airlines

Sat, May 23 - Tue, May 26

6:00 am - 9:48 pm

ORD

YYC

16h 48m

1 stop

1:27 pm - 12:44 am

YYC

ORD

10h 17m

1 stop

$245United Airlines

Sat, May 23 - Wed, May 27

5:30 pm - 8:25 pm

ORD

YYC

3h 55mnonstop

7:05 am - 4:20 pm

YYC

ORD

8h 15m

1 stop

$246Multiple Airlines

Wed, May 27 - Sat, May 30

1:59 pm - 8:30 pm

MDW

YYC

7h 31m

1 stop

6:45 am - 1:19 pm

YYC

MDW

5h 34m

1 stop

$256Delta

Sun, May 24 - Sun, May 31

9:23 am - 10:57 pm

MDW

YYC

14h 34m

2 stops

6:45 am - 1:19 pm

YYC

MDW

5h 34m

1 stop

$266Delta

Wed, May 27 - Wed, Jun 3

1:45 pm - 11:43 pm

STL

YYC

10h 58m

1 stop

6:15 am - 7:20 pm

YYC

STL

12h 05m

1 stop

$369American Airlines

Tue, Aug 18 - Tue, Aug 25

6:00 am - 11:29 pm

STL

YYC

18h 29m

1 stop

7:00 am - 11:59 pm

YYC

STL

15h 59m

1 stop

$386American Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$107

Best time to beat the crowds with an average 7% drop in price.

Most popular time to fly with an average 4% increase in price.

Flight from Chicago O'Hare Airport to Calgary

How does KAYAK find such low prices on flights from Illinois to Calgary?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Calgary.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Calgary?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Calgary from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Calgary?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Calgary with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Calgary?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Calgary from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Airdrie

Radium Hot Springs

Kananaskis

Everything you need to know for your flight to Calgary

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Calgary

Calgary (YYC)

YYC

$107 Find Cheap Flights from Illinois to Calgary

KAYAK searches hundreds of travel sites at once for deals on flights to Calgary

Cheap Flights from Illinois to Calgary

Recent round-trip flight deals from Illinois to Calgary

Recent one-way flight deals from Illinois to Calgary

Recent last minute flight deals from Illinois to Calgary

Recent direct flight deals from Illinois to Calgary

Good to know

FAQs for booking flights from Illinois to Calgary

How does KAYAK find such low prices on flights from Illinois to Calgary?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Calgary.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Calgary?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Calgary from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Calgary?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Calgary with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Calgary?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Calgary from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Calgary?

Everything you need to know for your flight to Calgary

Information on the airport you'll fly into in Calgary

Cabin class types available on flights to Illinois

Complete your trip to Calgary with a hotel stay or car rental

Find direct flights for Calgary

Flights to other popular destinations

Flights from domestic origins to Calgary

Choose which airport to fly into in Calgary

Find deals for your return flight