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Cheap flights from Calgary to Chicago O'Hare Intl Airport from C$ 233

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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — ORD
6 Aug — 13 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Calgary to Chicago O'Hare Intl are usually found in November or May, booked 45 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Calgary to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Calgary to O'Hare Intl
Explore the most affordable flight options available from Calgary to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 July 2026.

Fri 30/109:00 a.m.
YYC
-
ORD
Nonstop3h 35m
WestJet
Mon 2/112:20 p.m.
ORD
-
YYC
Nonstop4h 55m
WestJet
Deal found 4/7C$ 294
Fri 30/1012:37 p.m.
YYC
-
ORD
Nonstop3h 33m
United Airlines
Mon 2/119:47 p.m.
ORD
-
YYC
1 stop17h 09m
United Airlines
Deal found 7/7C$ 327
Fri 2/1011:55 p.m.
YYC
-
ORD
1 stop8h 05m
Air Canada
Tue 6/108:45 a.m.
ORD
-
YYC
1 stop8h 12m
Air Canada
Deal found 6/7C$ 367
Thu 30/76:00 a.m.
YYC
-
ORD
1 stop16h 19m
United Airlines
Wed 5/86:00 a.m.
ORD
-
YYC
1 stop16h 48m
United Airlines
Deal found 7/7C$ 370
Thu 24/912:00 p.m.
YYC
-
ORD
Nonstop3h 40m
WestJet
Sun 27/95:30 p.m.
ORD
-
YYC
Nonstop3h 55m
WestJet
Deal found 2/7C$ 375
Fri 30/107:45 a.m.
YYC
-
ORD
2 stops12h 47m
Delta
Mon 2/112:03 p.m.
ORD
-
YYC
1 stop10h 01m
Delta
Deal found 6/7C$ 378
Thu 10/96:30 a.m.
YYC
-
ORD
1 stop7h 25m
Air Canada
Mon 14/95:35 p.m.
ORD
-
YYC
1 stop8h 42m
Air Canada
Deal found 3/7C$ 382
Fri 4/97:00 a.m.
YYC
-
ORD
Nonstop3h 35m
American Airlines
Sun 6/98:46 p.m.
ORD
-
YYC
Nonstop3h 56m
American Airlines
Deal found 3/7C$ 385
Thu 24/127:15 a.m.
YYC
-
ORD
2 stops13h 19m
Delta
Thu 31/121:55 p.m.
ORD
-
YYC
1 stop10h 18m
Delta
Deal found 2/7C$ 391

Find flight deals from Calgary to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 July 2026.

Round-trip from

C$ 294

One-way from

C$ 233

Popular in

July

Cheapest in

November

Average price

C$ 527

Good round-trip deal

C$ 603 or less

Good one-way deal

C$ 374 or less
WestJet
  • WestJet
  • 30/10-2/11
  • Nonstop
  • 8h 30m total
  • Calgary to Chicago
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WestJet
  • WestJet
  • 25/9
  • Nonstop
  • 3h 40m total
  • Calgary to Chicago
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Calgary to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Calgary to Chicago O'Hare Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Calgary to O'Hare Intl 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 7 July 2026.
Use the filters below to find and compare flights from Calgary to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 30/10

7:45 a.m.-9:32 p.m.

2 stops12h 47m

Chicago O'Hare Intl

Mon 2/11

12:33 p.m.-11:04 p.m.

2 stops11h 31m

C$ 445

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 2/10

12:00 p.m.-4:40 p.m.

Nonstop3h 40m

Chicago O'Hare Intl

Tue 6/10

2:03 p.m.-11:04 p.m.

1 stop10h 01m

C$ 478

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sat 2/1

7:15 a.m.-9:34 p.m.

2 stops13h 19m

Chicago O'Hare Intl

Tue 5/1

12:15 p.m.-11:13 p.m.

2 stops11h 58m

C$ 509

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 22/7

8:30 a.m.-1:07 p.m.

Nonstop3h 37m

Chicago O'Hare Intl

Sat 25/7

3:50 p.m.-1:21 a.m.

1 stop10h 31m

C$ 527

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 24/12

7:15 a.m.-9:34 p.m.

2 stops13h 19m

Chicago O'Hare Intl

Thu 31/12

12:15 p.m.-11:13 p.m.

2 stops11h 58m

C$ 527

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 30/7

12:28 p.m.-5:04 p.m.

Nonstop3h 36m

Chicago O'Hare Intl

Wed 5/8

6:00 a.m.-9:48 p.m.

1 stop16h 48m

C$ 530
Quickest round-trip

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 23/7

12:28 p.m.-5:04 p.m.

Nonstop3h 36m

Chicago O'Hare Intl

Sun 26/7

7:45 p.m.-10:37 p.m.

Nonstop3h 52m

C$ 532

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 3/9

7:45 a.m.-6:19 p.m.

1 stop9h 34m

Chicago O'Hare Intl

Wed 9/9

2:05 p.m.-10:15 p.m.

2 stops9h 10m

C$ 534

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 30/7

6:45 a.m.-4:59 p.m.

1 stop9h 14m

Chicago O'Hare Intl

Mon 3/8

2:00 p.m.-11:04 p.m.

1 stop10h 04m

C$ 564

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sun 2/8

6:45 a.m.-5:17 p.m.

1 stop9h 32m

Chicago O'Hare Intl

Thu 6/8

2:00 p.m.-11:04 p.m.

1 stop10h 04m

C$ 577

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 22 resultsSorted by cheapest first
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2
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Best time to book a flight from Calgary to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Calgary 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 Calgary to Chicago O'Hare Intl Airport

How far ahead should I book a flight from Calgary to Chicago O'Hare Intl Airport?

The best time to book flights from Calgary to Chicago O'Hare Intl Airport is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Calgary to Chicago O'Hare Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Calgary to Chicago O'Hare Intl Airport (average of C$ 348). Flying from Calgary to Chicago O'Hare Intl Airport in July is currently the most expensive (average of C$ 527). 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 YYC to ORD?

Find hourly flight availability from Calgary to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Calgary to Chicago O'Hare Intl Airport as you normally would.

How much does it cost to fly round-trip from Calgary to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 7 July 2026.
See what other customers who have flown with Delta,United Airlines, andWestJet from Calgary to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,451 reviews
Check prices

Overall

7.8

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.8
Good
8,451 reviews
Delta
7.8
Good
8,451 reviews
Check prices

Overall

7.8

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
United Airlines
7.4
Good
9,945 reviews
Delta
7.8
Good
8,451 reviews
Check prices

Overall

7.8

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
WestJet
7.2
Good
3,400 reviews
Delta
7.8
Good
8,451 reviews
Check prices

Overall

7.8

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
American Airlines
7.1
Good
11,783 reviews
Delta
7.8
Good
8,451 reviews
Check prices

Overall

7.8

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Air Canada
7.1
Good
11,318 reviews
Delta
7.8
Good
8,451 reviews
Check prices

Overall

7.8

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Related info for your journey

Find useful and relevant information for your journey from Calgary to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Calgary to Chicago O'Hare Intl?

    For a flight from Calgary to Chicago O'Hare Intl, you will be flying from Calgary. Calgary (YYC) is just 9.3 km from the centre of the city. Calgary is the only Calgary airport and it handles 12 outbound flights to Chicago O'Hare Intl per day. 5 airlines have flights to Chicago O'Hare Intl from Calgary on a regular basis.

  • How long is the flight from Calgary to Chicago O'Hare Intl Airport?

    A quick flight from Calgary to Chicago O'Hare Intl Airport can take about 12h 47m. Delta provides one of the quickest options available for as low as C$ 445. Airlines will cover a distance of 2223 km.

  • What are the cheapest airlines flying from Calgary to Chicago O'Hare Intl Airport round-trip?

    Cheapflights users have booked flights from Calgary to Chicago O'Hare Intl Airport round-trip from C$ 124. Other airlines that can offer you cheap pricing are Delta, from C$ 189, and WestJet, from C$ 190. You may be able to fly from Calgary to Chicago O'Hare Intl Airport for 69% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Calgary to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at C$ 140. Air Canada flights start at C$ 154 while deals on American Airlines start at C$ 172 one-way.

  • What are the most reliable airlines from Calgary to Chicago O'Hare Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Calgary to Chicago O'Hare Intl Airport on time: Envoy Air (90%), Qatar Airways (89%), American Airlines (84%).

  • What are the cheapest flights from Calgary to Chicago O'Hare Intl Airport?

    Looking for the cheapest flight from Calgary to Chicago O'Hare Intl Airport? While on average our users pay C$ 953, our data indicates the cheapest price to be C$ 294. The most popular route (Calgary - Chicago O'Hare Intl), is priced around C$ 378.

  • Can I find deals for flights from Calgary to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Calgary to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Calgary to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Calgary to O'Hare Intl.

  • Can I find deals for business class flights from Calgary to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Calgary to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Calgary to Chicago O'Hare Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Calgary to Chicago O'Hare Intl Airport (average of C$ 348). Flying from Calgary to Chicago O'Hare Intl Airport in July is currently the most expensive (average of C$ 527). 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.

See more FAQs

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Northbrook
Evanston
Des Plaines
Downers Grove
Elk Grove Village
Racine
Bolingbrook
Naperville
Schaumburg

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Calgary to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Calgary to Midway flights
Edmonton to O'Hare Intl flights
Edmonton to Midway flights
Grande Prairie to O'Hare Intl flights
Fort McMurray to O'Hare Intl flights
Grande Prairie to Midway flights

Top 5 airlines flying from Calgary to O'Hare Intl

Discover the top 5 airlines that operate flights from Calgary to O'Hare Intl. 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 7 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 124AverageC$ 441FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 189AverageC$ 395FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 190AverageC$ 358FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 190AverageC$ 537FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 201AverageC$ 404FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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 Calgary to O'Hare Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to O'Hare Intl from Calgary today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Calgary to O'Hare Intl?

Cheapflights simply makes it quick and affordable to book flights from Calgary to O'Hare Intl 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 Calgary to O'Hare Intl with no change fees?

Yes, we can. To see specific flights from Calgary to O'Hare Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Calgary to O'Hare Intl become cheaper?

Of course! You can now track prices for flights from Calgary to O'Hare Intl 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.

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