Prices were available within the past 7 days and start at $180 for one-way flights and $312 for roundtrip, for the period specified. Prices and availability are subject to change.
Find the cheapest month to fly from Calgary (YYC) to Chicago (ORD)
December is typically the cheapest month to flyDecember is typically the cheapest month to fly
From $249 - $548 per traveler.
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Calgary (YYC) to Chicago (ORD) at a glance
Travel from Calgary (YYC) to Chicago (ORD) with a range of airlines offering various options on this international short-haul route. Whether you prefer full-service or budget carriers, you can compare flights to find the best fit for your budget and schedule as you plan to explore Chicago's iconic attractions and vibrant neighborhoods. Discover essential details for your flight from Calgary International Airport to O'Hare International Airport, ensuring a smooth start to your journey.
Fastest flight duration: around 3h 30m non-stop
Route distance: roughly 1,400 miles (2,250 km)
Flights per week: around 15+ flights with multiple daily departures on average
Typical fares (one-way): economy tickets often range from $100–$390, depending on seasonality and how far ahead you book
Flights from Calgary International Airport (YYC) to O'Hare International Airport (ORD)
Based on recent traveler bookings, here are the top airlines favored for routes from Calgary to Chicago, featuring both non-stop and one-stop flights. Popular layover options include Pearson International Airport (YYZ) with a layover of approximately 2 hours and 15 minutes, Minneapolis - St. Paul International Airport (MSP) at around 5 hours, and Denver International Airport (DEN), also about 2 hours and 15 minutes. This variety allows you to combine price, total travel time, and cabin class to create the ideal travel itinerary.
American Airlines: This full-service airline provides both non-stop and one-stop options, with one-way ticket prices typically ranging from $100 to $400. It makes up about 28% of departures for this route, with a standard non-stop travel duration of 3 hours and 30 minutes.
United: As a full-service carrier, United offers non-stop and one-stop flights, with one-way fares generally falling between $100 and $535. Representing roughly 24% of departures on this route, the typical non-stop flight time is also 3 hours and 30 minutes.
WestJet: This low-cost airline specializes in non-stop flights, with one-way fares usually ranging from $100 to $350. WestJet accounts for approximately 17% of departures for this route, featuring a total travel time of 3 hours and 30 minutes.
Delta: A full-service airline providing non-stop, one-stop, and multi-stop services, Delta offers one-way fares typically priced between $130 and $325. It holds about 15% of the departures, with a standard non-stop flight duration of 3 hours and 30 minutes.
Air Canada: This full-service carrier features both non-stop and one-stop options, with one-way fares generally ranging from $100 to $460. Air Canada accounts for around 15% of departures, with a typical one-stop journey lasting 5 hours and 45 minutes in the air, totaling approximately 8 hours and 30 minutes of travel time.
Travelers flying from Calgary to Chicago have the option to enhance their journey with upgraded service. Notable airlines include WestJet offering premium economy, while Delta and United both provide first-class experiences for a more luxurious flight.
Best time to fly from Calgary (YYC) to Chicago (ORD)
The most popular months for travelers flying from Calgary to Chicago are June, July, and August, when peak temperatures in Chicago reach up to 73.4°F in July. If you prefer quieter travel, consider November, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 42.3°F. For better deals, May usually offers the lowest average one-way fare around $143. Flight availability peaks in July, with approximately 30 flights per week, making it easier to find convenient departure times. December has the fewest flights, with approximately 10 flights per week.
Cheapest time to fly: May usually offers good deals with average one-way fare around $143, roughly 31% cheaper than the yearly average.
Most flight options: July has the highest number of flights from Calgary to Chicago, with approximately 30 flights per week, giving you more flexibility in scheduling your trip.
Month
Temperature
Demand
Weekly Flights
Average one-way Fare
January
25.7°F (-3.5°C)
Average
12
$247
February
27.0°F (-2.8°C)
Low
12
$231
March
37.0°F (2.8°C)
Average
15
$206
April
46.0°F (7.8°C)
Average
14
$202
May
57.0°F (13.9°C)
Average
20
$143
June
67.3°F (19.6°C)
High
27
$203
July
73.4°F (23.0°C)
High
30
$223
August
73.0°F (22.8°C)
High
29
$233
September
67.1°F (19.5°C)
Average
24
$190
October
54.9°F (12.7°C)
Average
17
$174
November
42.3°F (5.7°C)
Low
11
$175
December
33.1°F (0.6°C)
Low
10
$294
*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.
Alternative route from Calgary (YYC) to Chicago (ORD)
Calgary to Chicago (YYC-MDW): Midway International Airport (MDW) is located approximately 16 miles from O'Hare International Airport (ORD). One-way economy ticket prices for this route generally fall between $115 and $380, influenced by the time of year and booking period. Flights are primarily offered as one-stop options, with common layover points including Minneapolis - St. Paul International Airport (MSP) and Detroit Metropolitan Wayne County Airport (DTW). Major airlines operating on this route feature Delta and the budget-friendly WestJet.
How to find the best prices for flights from Calgary (YYC) to Chicago (ORD)
Getting some of the best deals on flights from Calgary to Chicago is all about timing and flexibility. Here are some key tips to help you save:
Best times to book and fly: cheaper fares are typically found when booking 2-8 weeks in advance, although most travelers tend to book at least 2 months ahead. Morning departures (5 am-12 pm) usually offer lower prices, while afternoon flights (12 pm-6 pm) are more popular. Additionally, flying on Wednesday generally provides cheaper options, whereas Sunday is the most popular travel day.
Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at O'Hare International Airport from Calgary International Airport
Chicago welcomes travelers from Calgary with a range of transport options based on price, convenience, and proximity. Here's how to reach Chicago efficiently:
Hotel transfer: Transfers offer a convenient way to reach your hotel in Chicago, with private rides that can be arranged in advance.
Car rental: Renting a car from O'Hare International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at O'Hare International Airport on Expedia.
Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
Public transportation: From O'Hare International Airport, O'Hare Station, a metro station, is just a short 0.1-mile walk away, while Rosemont Station, a train station, is located about 2.2 miles from the airport and is typically reached by car.
Calgary to Chicago Flights
The cheapest times to fly from Calgary to Chicago
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Calgary to Chicago are during the month of December. You can find some of the cheapest flights from Calgary to Chicago with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Calgary to Chicago
Sunday is one of the best days to book for cheap flights from Calgary to Chicago: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Calgary to Chicago
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Calgary to Chicago in 2026. You can also book with separate airlines for your outbound and return journeys, from $180 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Calgary to Chicago flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Calgary to Chicago airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently Asked Questions
How much does a flight from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) cost?
You can find cheap one-way flights from $180 and cheap return flights $312 Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) with Expedia. One-way flights usually range from $146 to $1079, and return flights typically cost between $347 and $2145. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
The cheapest month to fly from YYC to ORD is December when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
Choose from 3 airlines operating direct flights from YYC to ORD:
American Airlines operates around 11 direct flights from YYC to ORD every week
United operates around 9 direct flights from YYC to ORD every week
WestJet operates around 7 direct flights from YYC to ORD every week
What is the cheapest airline that flies from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
American Airlines is one of the cheapest airlines offering nonstop flights from Calgary (YYC) to Chicago (ORD), with round-trip tickets starting from around $565. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
To find a cheap flight from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
The best airline to fly with from Calgary, AB (YYC) to Chicago, IL (ORD) will differ from traveler to traveler. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. Air Canada offers the most daily flights from YYC to ORD, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
You can find approximately 4 nonstop flights per day from Calgary Intl. (YYC) to O'Hare Intl. (ORD). For more options, look at flights that include layovers.
What is the earliest flight from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
The earliest flight from Calgary International Airport (YYC) to O'Hare International Airport (ORD) typically departs at around 12:05 AM, operated by Air Canada. This is a seasonal service, so if you're planning to travel during the active months, this early departure can help you make the most of your time in Chicago. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
For flights from Calgary (YYC) to Chicago (ORD), the most popular departure times are from 6am to 9am. This time window captures about 33% of the traffic. Airlines like United Airlines, Air Canada, and Delta operate during this time, making it a convenient choice for early risers.
How long does it take to fly from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
A nonstop flight from YYC to ORD typically takes around 3 hours 30 minutes, covering approximately 1,382 miles. Connecting flights on this route usually add 4 hours 20 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
Business class is available on flights from YYC to ORD. Airlines that offer business class service on this route include:
Air Canada
United Airlines
American Airlines
First class cabins are available on:
United Airlines
Delta Air Lines
Air Canada
WestJet
How much is a business class flight from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
A direct, return business class ticket from Calgary, AB (YYC) to Chicago, IL (ORD) typically costs between $1,233 - $2,087. A non-stop, one-way business class flight is usually around $467 - $649. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) if you opt for a connecting flight.
*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight with Expedia?
It's easy to earn miles on a Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Chicago from Calgary Intl. (YYC)?
When traveling from Calgary Intl. (YYC) to Chicago, you can fly into Midway Intl. (MDW) and O'Hare Intl. (ORD). Some flights may connect through major hubs like Salt Lake City Intl. (SLC), Minneapolis - St. Paul Intl. (MSP), Pearson Intl. (YYZ) before reaching Chicago. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) at the last minute?
Typically, booking a last minute flight from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight and hotel package?
Securing a Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) Chicago Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
If you booked your Calgary, AB (YYC-Calgary Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport
Calgary International Airport
Destination airport
Chicago O'Hare Intl. Airport
Distance
1,381 miles away
Airlines serving
Alaska Airlines, PD, WestJet, Delta, American Airlines, Air Canada, United