$734 Cheap Flights from Cagliari (CAG) to Chicago (ORD)

View $734 flight on Thu, Oct 16, 2025Opens in a new window

Popular airlines from Elmas Airport (CAG) to Chicago O'Hare Intl. Airport (ORD)

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Cheap Flights from Cagliari to Chicago (CAG-ORD)

Prices were available within the past 7 days and start at $734 for one-way flights and $613 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri, Oct 3 - Sun, Oct 12
CAG
Cagliari
ORD
Chicago
$613 Roundtrip, found 5 days ago
$613
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Oct 3 from Cagliari to Chicago, returning Sun, Oct 12, priced at $613 found 5 days ago
Iberia
Sun, Aug 24 - Sun, Sep 7
CAG
Cagliari
ORD
Chicago
$649 Roundtrip, found 10 hours ago
$649
Roundtrip
found 10 hours ago
Select Iberia flight, departing Sun, Aug 24 from Cagliari to Chicago, returning Sun, Sep 7, priced at $649 found 10 hours ago
Lufthansa
Mon, Aug 25 - Mon, Sep 8
CAG
Cagliari
ORD
Chicago
$651 Roundtrip, found 10 hours ago
$651
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Mon, Aug 25 from Cagliari to Chicago, returning Mon, Sep 8, priced at $651 found 10 hours ago
Iberia
Sun, Aug 24 - Sun, Sep 7
CAG
Cagliari
ORD
Chicago
$653 Roundtrip, found 10 hours ago
$653
Roundtrip
found 10 hours ago
Select Iberia flight, departing Sun, Aug 24 from Cagliari to Chicago, returning Sun, Sep 7, priced at $653 found 10 hours ago
Lufthansa
Fri, Apr 17 - Sun, May 3
CAG
Cagliari
ORD
Chicago
$664 Roundtrip, found 17 hours ago
$664
Roundtrip
found 17 hours ago
Select Lufthansa flight, departing Fri, Apr 17 from Cagliari to Chicago, returning Sun, May 3, priced at $664 found 17 hours ago
Swiss International Air Lines
Mon, Aug 25 - Mon, Sep 8
CAG
Cagliari
ORD
Chicago
$677 Roundtrip, found 10 hours ago
$677
Roundtrip
found 10 hours ago
Select Swiss International Air Lines flight, departing Mon, Aug 25 from Cagliari to Chicago, returning Mon, Sep 8, priced at $677 found 10 hours ago
Swiss International Air Lines
Sun, Aug 24 - Sun, Sep 7
CAG
Cagliari
ORD
Chicago
$677 Roundtrip, found 10 hours ago
$677
Roundtrip
found 10 hours ago
Select Swiss International Air Lines flight, departing Sun, Aug 24 from Cagliari to Chicago, returning Sun, Sep 7, priced at $677 found 10 hours ago
Lufthansa
Sun, Aug 24 - Sun, Sep 7
CAG
Cagliari
ORD
Chicago
$678 Roundtrip, found 10 hours ago
$678
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Sun, Aug 24 from Cagliari to Chicago, returning Sun, Sep 7, priced at $678 found 10 hours ago
Delta
Sun, Aug 24 - Fri, Sep 5
CAG
Cagliari
ORD
Chicago
$686 Roundtrip, found 10 hours ago
$686
Roundtrip
found 10 hours ago
Select Delta flight, departing Sun, Aug 24 from Cagliari to Chicago, returning Fri, Sep 5, priced at $686 found 10 hours ago
British Airways
Mon, Sep 15 - Sun, Sep 21
CAG
Cagliari
ORD
Chicago
$977 Roundtrip, found 1 day ago
$977
Roundtrip
found 1 day ago
Select British Airways flight, departing Mon, Sep 15 from Cagliari to Chicago, returning Sun, Sep 21, priced at $977 found 1 day ago
Flights from Cagliari (CAG) to Chicago (ORD)
Origin airport
Elmas
Destination airport
O'Hare Intl.
Airlines serving
Austrian Airlines, British Airways, Iberia, Lufthansa, Swiss International Air Lines
Roundtrip price
$612
Distance
4788 mi

Cagliari to Chicago Flights

The cheapest times to fly from Cagliari 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 Cagliari to Chicago are during the month of October. You can find some of the cheapest flights from Cagliari to Chicago with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cagliari to Chicago

Sunday is one of the best days to book for cheap flights from Cagliari 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 Cagliari 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 Cagliari to Chicago in 2025. You can also book with separate airlines for your outbound and return journeys, from $734 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 Cagliari 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 Cagliari 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 Elmas Airport (CAG) to O'Hare Intl. Airport (ORD) cost?
Discover the latest flight deals from CAG to ORD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CAG to ORD?
The cheapest flights from CAG to ORD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CAG to ORD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CAG to ORD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Elmas Airport (CAG) to O'Hare Intl. Airport (ORD)?
You'll need to book a flight with a layover if you're traveling from Elmas Airport (CAG) to O'Hare Intl. Airport (ORD). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from CAG to ORD?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Elmas Airport (CAG) to O'Hare Intl. Airport (ORD)?
To arrive at O'Hare Intl. Airport (ORD) without delays, book a flight that leaves Elmas Airport (CAG) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Elmas Airport (CAG) to O'Hare Intl. Airport (ORD) last-minute?
Last-minute bookings from CAG to ORD are usually more expensive. For the cheapest rates, start searching for flights well ahead of time. That being said, if you're flexible with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book a CAG to ORD flight and hotel package?
You'll typically save money by securing a CAG to ORD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your preferred flights and accommodations, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Elmas Airport (CAG) to O'Hare Intl. Airport (ORD)?
If you booked your CAG to ORD flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.