Cheap flights from Calgary to Chicago O'Hare Intl Airport from C$ 116
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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — ORD
25 Jan — 1 Feb1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Calgary to Chicago O'Hare Intl are usually found in May or April, booked 43 days in advance, depart on a Friday or Thursday and return on a Wednesday
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 26 December 2025.
Sun 28/122:45 p.m.YYC - ORD
1 stop5h 49mDelta
Thu 1/16:45 a.m.ORD - YYC
2 stops17h 30mDelta
Deal found 25/12C$ 516
Sun 28/121:31 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Sun 4/111:59 p.m.ORD - YYC
1 stop12h 41mAmerican Airlines
Deal found 25/12C$ 602
Sun 28/126:15 a.m.YYC - ORD
1 stop7h 55mAir Canada
Tue 30/128:30 p.m.ORD - YYC
1 stop15h 09mAir Canada
Deal found 25/12C$ 689
Sun 28/126:15 a.m.YYC - ORD
1 stop7h 55mAir Canada
Sun 4/18:40 p.m.ORD - YYC
1 stop14h 59mAir Canada
Deal found 25/12C$ 718
Sun 28/121:31 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Mon 29/128:58 p.m.ORD - YYC
1 stop15h 41mAmerican Airlines
Deal found 25/12C$ 764
Tue 30/126:15 p.m.YYC - ORD
1 stop17h 46mAir Canada
Sun 4/18:40 p.m.ORD - YYC
1 stop14h 59mAir Canada
Deal found 25/12C$ 768
Wed 31/121:31 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Sun 4/111:59 p.m.ORD - YYC
1 stop12h 41mAmerican Airlines
Deal found 25/12C$ 781
Fri 26/121:31 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Sun 4/111:59 p.m.ORD - YYC
1 stop12h 41mAmerican Airlines
Deal found 25/12C$ 790
Mon 29/125:35 a.m.YYC - ORD
2 stops13h 35mAir Canada
Tue 30/128:30 p.m.ORD - YYC
1 stop15h 09mAir Canada
Deal found 25/12C$ 803
Sun 28/121:31 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Fri 2/18:25 a.m.ORD - YYC
1 stop14h 21mAmerican Airlines
Deal found 25/12C$ 816
Best flights from Calgary to O'Hare Intl
Discover carefully curated flight deals from Calgary to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 December 2025.
Wed 25/212:33 p.m.YYC - ORD
Nonstop3h 32mUnited Airlines
Tue 3/38:41 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
Deal found 26/12C$ 209
Fri 16/19:00 a.m.YYC - ORD
Nonstop3h 35mWestJet
Thu 22/18:45 a.m.ORD - YYC
Nonstop3h 50mWestJet
Deal found 25/12C$ 222
Fri 16/16:15 a.m.YYC - ORD
1 stop14h 00mLufthansa
Thu 22/18:45 a.m.ORD - YYC
Nonstop3h 50mLufthansa
Deal found 24/12C$ 248
Mon 9/27:00 a.m.YYC - ORD
1 stop9h 44mMultiple Airlines
Fri 13/22:20 p.m.ORD - YYC
Nonstop3h 55mMultiple Airlines
Deal found 25/12C$ 250
Wed 4/22:13 p.m.YYC - ORD
1 stop8h 46mUnited Airlines
Tue 10/27:00 a.m.ORD - YYC
1 stop8h 21mUnited Airlines
Deal found 24/12C$ 241
Fri 23/17:00 a.m.YYC - ORD
1 stop9h 44mMultiple Airlines
Fri 30/12:20 p.m.ORD - YYC
Nonstop3h 55mMultiple Airlines
Deal found 26/12C$ 250
Tue 3/22:13 p.m.YYC - ORD
1 stop6h 03mUnited Airlines
Wed 4/28:45 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
Deal found 23/12C$ 250
Tue 7/41:27 p.m.YYC - ORD
1 stop10h 03mUnited Airlines
Tue 21/412:55 p.m.ORD - YYC
1 stop9h 53mUnited Airlines
Deal found 24/12C$ 257
Direct flights from Calgary to O'Hare Intl
Explore direct flight options from Calgary to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 December 2025.
Wed 25/212:33 p.m.YYC - ORD
Nonstop3h 32mUnited Airlines
Tue 3/38:41 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
Deal found 24/12C$ 206
Fri 16/19:00 a.m.YYC - ORD
Nonstop3h 35mWestJet
Thu 22/18:45 a.m.ORD - YYC
Nonstop3h 50mWestJet
Deal found 25/12C$ 222
Wed 4/212:37 p.m.YYC - ORD
Nonstop3h 31mUnited Airlines
Tue 10/28:45 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
Deal found 24/12C$ 287
Sat 2/512:30 p.m.YYC - ORD
Nonstop3h 20mUnited Airlines
Tue 5/59:00 a.m.ORD - YYC
Nonstop3h 54mUnited Airlines
Deal found 24/12C$ 289
Tue 3/31:44 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Tue 10/39:41 a.m.ORD - YYC
Nonstop4h 09mAmerican Airlines
Deal found 25/12C$ 325
Fri 23/19:00 a.m.YYC - ORD
Nonstop3h 35mDelta
Fri 30/12:20 p.m.ORD - YYC
Nonstop3h 55mDelta
Deal found 26/12C$ 339
Wed 21/112:37 p.m.YYC - ORD
Nonstop3h 31mUnited Airlines
Wed 28/18:45 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
Deal found 24/12C$ 382
Wed 4/21:40 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Wed 18/29:55 a.m.ORD - YYC
Nonstop4h 06mAmerican Airlines
Deal found 25/12C$ 398
Tue 3/212:37 p.m.YYC - ORD
Nonstop3h 31mUnited Airlines
Wed 4/28:45 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
Deal found 25/12C$ 399
Wed 8/412:34 p.m.YYC - ORD
Nonstop3h 27mUnited Airlines
Wed 22/48:42 a.m.ORD - YYC
Nonstop3h 50mUnited Airlines
Deal found 24/12C$ 401
Last-minute flights from Calgary to O'Hare Intl
Discover last-minute flight deals from Calgary to O'Hare Intl. Data last updated 26 December 2025 and is based on user searches.
Fri 16/19:00 a.m.YYC - ORD
Nonstop3h 35mWestJet
Thu 22/18:45 a.m.ORD - YYC
Nonstop3h 50mWestJet
Deal found 25/12C$ 222
Fri 16/16:15 a.m.YYC - ORD
1 stop12h 36mLufthansa
Thu 22/18:45 a.m.ORD - YYC
Nonstop3h 50mLufthansa
Deal found 25/12C$ 232
Fri 16/16:15 a.m.YYC - ORD
1 stop12h 36mUnited Airlines
Sun 18/17:00 a.m.ORD - YYC
1 stop15h 53mUnited Airlines
Deal found 24/12C$ 258
Fri 16/19:00 a.m.YYC - ORD
Nonstop3h 35mMultiple Airlines
Sun 18/18:41 p.m.ORD - YYC
1 stop27h 11mMultiple Airlines
Deal found 24/12C$ 261
Fri 16/19:00 a.m.YYC - ORD
Nonstop3h 35mMultiple Airlines
Thu 22/17:20 a.m.ORD - YYC
2 stops12h 49mMultiple Airlines
Deal found 24/12C$ 283
Fri 16/111:40 p.m.YYC - ORD
2 stops14h 15mAir Canada
Thu 22/112:53 p.m.ORD - YYC
1 stop10h 00mAir Canada
Deal found 24/12C$ 328
Tue 20/16:30 a.m.YYC - ORD
2 stops16h 26mDelta
Sat 31/112:55 p.m.ORD - YYC
1 stop8h 59mDelta
Deal found 25/12C$ 309
Tue 20/19:00 a.m.YYC - ORD
1 stop8h 55mAir Canada
Sat 31/13:55 p.m.ORD - YYC
1 stop9h 19mAir Canada
Deal found 25/12C$ 334
Wed 21/17:40 a.m.YYC - ORD
2 stops9h 15mDelta
Wed 28/112:30 p.m.ORD - YYC
1 stop9h 24mDelta
Deal found 24/12C$ 308
Fri 23/17:00 a.m.YYC - ORD
1 stop9h 44mMultiple Airlines
Fri 30/12:20 p.m.ORD - YYC
Nonstop3h 55mMultiple Airlines
Deal found 26/12C$ 250
One-way flights from Calgary to O'Hare Intl
Search for one-way flight options from Calgary to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 26 December 2025.
Fri 23/19:00 a.m.YYC - ORD
Nonstop3h 35mWestJet
Deal found 24/12C$ 116
Mon 23/29:00 a.m.YYC - ORD
Nonstop3h 35mWestJet
Deal found 25/12C$ 118
Wed 27/512:15 p.m.YYC - ORD
Nonstop3h 28mWestJet
Deal found 25/12C$ 119
Fri 17/49:00 a.m.YYC - ORD
Nonstop3h 35mWestJet
Deal found 25/12C$ 126
Tue 16/612:15 p.m.YYC - ORD
Nonstop3h 28mWestJet
Deal found 24/12C$ 133
Thu 22/112:37 p.m.YYC - ORD
Nonstop3h 31mUnited Airlines
Deal found 24/12C$ 137
Tue 24/31:30 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Deal found 25/12C$ 139
Wed 25/21:44 p.m.YYC - ORD
Nonstop3h 40mAmerican Airlines
Deal found 26/12C$ 141
Fri 12/612:15 p.m.YYC - ORD
Nonstop3h 28mWestJet
Deal found 24/12C$ 150
Sat 10/15:25 a.m.YYC - ORD
1 stop8h 45mAir Canada
Deal found 25/12C$ 153
Fri 17/48:45 p.m.YYC - ORD
2 stops12h 23mAir Canada
Deal found 25/12C$ 156
Wed 25/26:15 a.m.YYC - ORD
1 stop12h 35mUnited Airlines
Deal found 25/12C$ 157
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 26 December 2025.
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 26 December 2025.
Use the filters below to find and compare flights from Calgary to Chicago O'Hare Intl Airport that are best for you.
Fly from
Calgary
Fly to
O'Hare Intl
Route
Depart
Return
Price
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Wed 25/2
12:33 p.m.-5:05 p.m.
Nonstop3h 32m
Chicago O'Hare Intl
Tue 3/3
8:41 a.m.-11:31 a.m.
Nonstop3h 50m
C$ 209
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 16/1
9:00 a.m.-1:35 p.m.
Nonstop3h 35m
Chicago O'Hare Intl
Thu 22/1
8:45 a.m.-11:35 a.m.
Nonstop3h 50m
C$ 222
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Wed 4/2
2:13 p.m.-11:59 p.m.
1 stop8h 46m
Chicago O'Hare Intl
Tue 10/2
7:00 a.m.-2:21 p.m.
1 stop8h 21m
C$ 241
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 16/1
6:15 a.m.-9:15 p.m.
1 stop14h 00m
Chicago O'Hare Intl
Thu 22/1
8:45 a.m.-11:35 a.m.
Nonstop3h 50m
C$ 248
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Mon 9/2
7:00 a.m.-5:44 p.m.
1 stop9h 44m
Chicago O'Hare Intl
Fri 13/2
2:20 p.m.-5:15 p.m.
Nonstop3h 55m
C$ 250
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 23/1
7:00 a.m.-5:44 p.m.
1 stop9h 44m
Chicago O'Hare Intl
Fri 30/1
2:20 p.m.-5:15 p.m.
Nonstop3h 55m
C$ 250
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Tue 3/2
2:13 p.m.-9:16 p.m.
1 stop6h 03m
Chicago O'Hare Intl
Wed 4/2
8:45 a.m.-11:35 a.m.
Nonstop3h 50m
C$ 250
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Tue 7/4
1:27 p.m.-12:30 a.m.
1 stop10h 03m
Chicago O'Hare Intl
Tue 21/4
12:55 p.m.-9:48 p.m.
1 stop9h 53m
C$ 257
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 3/4
9:00 a.m.-1:35 p.m.
Nonstop3h 35m
C$ 116
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Fri 27/2
9:00 a.m.-1:35 p.m.
Nonstop3h 35m
C$ 118
Flights are sorted by cheapest round-trip flights first.
Deals found on 24/12
Showing 1-10 of 18 results
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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
Prices
Airlines
More
How far ahead should I book a flight from Calgary to Chicago O'Hare Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Calgary to O'Hare Intl. Price data was last updated on 19 December 2025.
The best time to book flights from Calgary to Chicago O'Hare Intl Airport is 43 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, April is the cheapest month in which you can book a flight from Calgary to Chicago O'Hare Intl Airport (average of C$ 148). Flying from Calgary to Chicago O'Hare Intl Airport in July is currently the most expensive (average of C$ 212). 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 26 December 2025.
Unlike at noon, when flights are generally more expensive, you can save up to 67% on flights from Calgary to Chicago O'Hare Intl Airport by exploring options for tickets in the evening.
Weekly flight availability from Calgary to Chicago O'Hare Intl Airport
Explore weekly flight availability from Calgary to O'Hare Intl. 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 26 December 2025.
The most flights from YYC to ORD are scheduled on a Friday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).
What’s the top layover airport for flights from Calgary to Chicago O'Hare Intl Airport?
Share of one-stop round-trip flights from Calgary to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Toronto (YYZ) – chosen by Cheapflights users on 56% of one-stop itineraries from Calgary to Chicago O'Hare Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Calgary to Chicago O'Hare Intl Airport?
Average round-trip fare for 1-stop flights from Calgary to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Ottawa (YOW) is the most affordable 1-stop option, with an average round-trip price of C$ 254.
What’s the fastest layover option from Calgary to Chicago O'Hare Intl Airport?
Shortest average travel time for 1-stop one-way flights from Calgary to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 7h 24m.
Which airport typically offers the quickest layover for flights from Calgary to Chicago O'Hare Intl Airport?
Average layover duration for 1-stop one-way flights from Calgary to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 2h 06m.
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 26 December 2025.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines 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.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
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 7 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 3h 32m. United Airlines provides one of the quickest options available for as low as C$ 209. Airlines will cover a distance of 2223 km. Generally, flights for this route are direct.
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$ 147. Other airlines that can offer you cheap pricing are American Airlines, from C$ 169, and WestJet, from C$ 173. You may be able to fly from Calgary to Chicago O'Hare Intl Airport for 57% 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$ 134. Air Canada flights start at C$ 147 while deals on United Airlines start at C$ 161 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: Delta (85%), WestJet (79%), Avianca (74%).
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$ 1,396, our data indicates the cheapest price to be C$ 142. The most popular route (Calgary - Chicago O'Hare Intl), is priced around C$ 206.
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, April is the cheapest month in which you can book a flight from Calgary to Chicago O'Hare Intl Airport (average of C$ 148). Flying from Calgary to Chicago O'Hare Intl Airport in July is currently the most expensive (average of C$ 212). 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.
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 26 December 2025.
Browse through other flights departing from Calgary. Flights are based on user searches made on Cheapflights and were last updated on 26 December 2025.
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 26 December 2025.
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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