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Cheap flights from Illinois to Calgary from $77

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Calgary departing on 10/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Illinois to Calgary

Cheap round-trip flights

WestJet Logo
5:30 pm - 8:19 pmORD-YYC
3h 49mnonstop
WestJet Logo
12:15 pm - 4:43 pmYYC-ORD
3h 28mnonstop
$152WestJet
Find Deal
sex, set 26 - ter, set 30
WestJet Logo
5:30 pm - 8:19 pmORD-YYC
3h 49mnonstop
WestJet Logo
12:15 pm - 4:43 pmYYC-ORD
3h 28mnonstop
$155WestJet
Find Deal
dom, out 5 - qui, out 16
United Airlines Logo
8:47 am - 11:38 amORD-YYC
3h 51mnonstop
United Airlines Logo
12:38 pm - 5:10 pmYYC-ORD
3h 32mnonstop
$162United Airlines
Find Deal
qua, out 22 - sex, out 24
Logo
5:30 pm - 8:19 pmORD-YYC
3h 49mnonstop
Logo
1:10 am - 9:14 amYYC-ORD
7h 04m1 stop
$164
Find Deal
sex, out 10 - qui, out 16
Logo
5:30 pm - 8:19 pmORD-YYC
3h 49mnonstop
Logo
1:10 am - 9:14 amYYC-ORD
7h 04m1 stop
$167
Find Deal
sex, out 10 - qui, out 16
United Airlines Logo
5:01 am - 1:53 pmORD-YYC
9h 52m1 stop
United Airlines Logo
12:37 pm - 5:10 pmYYC-ORD
3h 33mnonstop
$171United Airlines
Find Deal
sex, out 17 - qua, out 29
American Airlines Logo
8:30 pm - 11:19 pmORD-YYC
3h 49mnonstop
American Airlines Logo
6:29 am - 10:54 amYYC-ORD
3h 25mnonstop
$181American Airlines
Find Deal
qua, set 24 - qui, out 2
Air Canada Logo
8:40 am - 3:50 pmORD-YYC
8h 10m1 stop
Air Canada Logo
1:10 am - 9:51 amYYC-ORD
7h 41m1 stop
$191Air Canada
Find Deal
ter, set 16 - seg, set 22
Air Canada Logo
3:50 pm - 11:22 pmORD-YYC
8h 32m1 stop
Air Canada Logo
1:10 am - 9:51 amYYC-ORD
7h 41m1 stop
$198Air Canada
Find Deal
ter, set 9 - seg, set 15
American Airlines Logo
6:10 am - 11:19 pmSTL-YYC
18h 09m1 stop
American Airlines Logo
6:29 am - 9:53 pmYYC-STL
14h 24m1 stop
$326American Airlines
Find Deal
ter, set 9 - ter, set 16

United Airlines flights from Illinois to Calgary

Our best United Airlines deals on Illinois to Calgary flight tickets
United Airlines
Oct 22
ORD8:47 amChicago O'Hare Intl
3h 51m
YYC11:38 amCalgary
Oct 24
YYC12:38 pmCalgary
3h 32m
ORD5:10 pmChicago O'Hare Intl
$162
Find similar
United Airlines
Oct 17
ORD5:01 amChicago O'Hare Intl
9h 52m
1 stop
YYC1:53 pmCalgary
Oct 29
YYC12:37 pmCalgary
3h 33m
ORD5:10 pmChicago O'Hare Intl
$171
Find similar
United Airlines
Nov 5
ORD8:45 amChicago O'Hare Intl
3h 50m
YYC11:35 amCalgary
Nov 11
YYC12:37 pmCalgary
3h 33m
ORD5:10 pmChicago O'Hare Intl
$175
Find similar

Air Canada flights from Illinois to Calgary

Our best Air Canada deals on Illinois to Calgary flight tickets
Air Canada
Sep 16
ORD8:40 amChicago O'Hare Intl
8h 10m
1 stop
YYC3:50 pmCalgary
Sep 22
YYC1:10 amCalgary
7h 41m
1 stop
ORD9:51 amChicago O'Hare Intl
$191
Find similar
Air Canada
Sep 9
ORD3:50 pmChicago O'Hare Intl
8h 32m
1 stop
YYC11:22 pmCalgary
Sep 15
YYC1:10 amCalgary
7h 41m
1 stop
ORD9:51 amChicago O'Hare Intl
$198
Find similar
Air Canada
Oct 7
ORD3:35 pmChicago O'Hare Intl
8h 41m
1 stop
YYC11:16 pmCalgary
Oct 11
YYC1:10 amCalgary
7h 41m
1 stop
ORD9:51 amChicago O'Hare Intl
$199
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated agosto 18, 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

sex 9/26

5:30 pm-8:19 pm

Nonstop3h 49m

Calgary

ter 9/30

12:15 pm-4:43 pm

Nonstop3h 28m

$152

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

dom 10/5

5:30 pm-8:19 pm

Nonstop3h 49m

Calgary

qui 10/16

12:15 pm-4:43 pm

Nonstop3h 28m

$155

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

qua 10/22

8:47 am-11:38 am

Nonstop3h 51m

Calgary

sex 10/24

12:38 pm-5:10 pm

Nonstop3h 32m

$162

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

sex 10/10

5:30 pm-8:19 pm

Nonstop3h 49m

Calgary

qui 10/16

1:10 am-9:14 am

1 stop7h 04m

$164

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

sex 10/10

5:30 pm-8:19 pm

Nonstop3h 49m

Calgary

qui 10/16

1:10 am-9:14 am

1 stop7h 04m

$167

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

sex 10/17

5:01 am-1:53 pm

1 stop9h 52m

Calgary

qua 10/29

12:37 pm-5:10 pm

Nonstop3h 33m

$171

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

qua 9/24

8:30 pm-11:19 pm

Nonstop3h 49m

Calgary

qui 10/2

6:29 am-10:54 am

Nonstop3h 25m

$181

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

ter 9/16

8:40 am-3:50 pm

1 stop8h 10m

Calgary

seg 9/22

1:10 am-9:51 am

1 stop7h 41m

$191

ChicagoCalgary

ORD - YYC

ORDYYC

Chicago O'Hare Intl

ter 9/9

3:50 pm-11:22 pm

1 stop8h 32m

Calgary

seg 9/15

1:10 am-9:51 am

1 stop7h 41m

$198

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

ter 9/9

6:10 am-11:19 pm

1 stop18h 09m

Calgary

ter 9/16

6:29 am-9:53 pm

1 stop14h 24m

$326

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Calgary from

How to get the cheapest flight ticket from Illinois to Calgary

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 Calgary?

The month of May is, on average, the cheapest month to fly to Calgary from Illinois, with most prices found around $223. If you aren’t able to travel during the month of May, then book flights to Calgary from Illinois during October instead. Flights to Calgary in October, while not as cheap as those in May, still average around $228.

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

The cheapest day to depart on your flight to Calgary is on a Thursday when prices can be found for as low as $293. This is often the case because there is less demand to fly during this day of the week. Flights from Illinois to Calgary on a Tuesday will generally be more expensive and average around $342. 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 Calgary?

The cheapest time of day to fly to Calgary is in the afternoon when flights can be purchased for as low as $267. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $472 on average. Flights to Calgary from Illinois in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Calgary flight route?

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

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

You are more likely to see cheaper flights to Calgary from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around $285 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from Illinois for as low as $223 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Calgary 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 Illinois to Calgary flights?

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

Cheap Illinois to Calgary flight deals and tips

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

Best Price Found

$77

Fastest flight time

3h 45m

Direct flights

Every day

Airports in Calgary

1 airport
The best one-way flight to Calgary from Illinois in the past 72 hours is $77. The best round-trip flight deal from Illinois to Calgary found on momondo in the last 72 hours is $152.
The fastest flight from Illinois to Calgary takes 3h 45m
Direct flights go from Illinois to Calgary every day.
There is 1 airport near Calgary: Calgary (YYC)
Search flight deals

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

    Prices for flights from Illinois to Calgary Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Calgary Airport.

  • What documentation or ID do you need to fly to Calgary Airport?

    The travel and health documents you'll need for your trip to Calgary Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Calgary Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Illinois to Calgary

Compare and see reviews for airlines that fly from Illinois to Calgary with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $97Free CancellationRating
7.1
9,992 reviews
Search Air Canada flights
United AirlinesPriceFrom $100Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
DeltaPriceFrom $108Free CancellationRating
8.0
7,981 reviews
Search Delta flights
WestJetPriceFrom $143Free CancellationRating
7.2
3,018 reviews
Search WestJet flights
American AirlinesPriceFrom $194Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Calgary?

Book flights to Calgary if you plan to visit one of these locations
Banff
Canmore
Lake Louise
Radium Hot Springs
Drumheller
Airdrie
Kananaskis

Why use momondo?

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

Finding the right flight to Calgary from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Calgary quick and easy, saving you time and money.

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

Flights from Illinois to Calgary with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Illinois and Calgary by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Calgary, momondo offers a useful price alert feature which will track prices for flights to Calgary from Illinois and alert you when they change.

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