$639 Cheap Flights from Chicago (ORD) to Constantine (CZL)

View $639 flight on Tue, Oct 28, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Constantine (CZL-Mohamed Boudiaf)

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Cheap Flights from Chicago to Constantine (ORD-CZL)

Prices were available within the past 7 days and start at $639 for one-way flights and $642 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Sat, Oct 18 - Wed, Oct 29
ORD
Chicago
CZL
Constantine
$642 Roundtrip, found 6 days ago
$642
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Sat, Oct 18 from Chicago to Constantine, returning Wed, Oct 29, priced at $642 found 6 days ago
Turkish Airlines
Sun, Feb 1 - Wed, Apr 1
ORD
Chicago
CZL
Constantine
$662 Roundtrip, found 4 days ago
$662
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Sun, Feb 1 from Chicago to Constantine, returning Wed, Apr 1, priced at $662 found 4 days ago
Turkish Airlines
Fri, Oct 31 - Thu, Nov 27
ORD
Chicago
CZL
Constantine
$672 Roundtrip, found 5 days ago
$672
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Fri, Oct 31 from Chicago to Constantine, returning Thu, Nov 27, priced at $672 found 5 days ago
Turkish Airlines
Sat, Oct 18 - Wed, Oct 29
ORD
Chicago
CZL
Constantine
$682 Roundtrip, found 6 days ago
$682
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Sat, Oct 18 from Chicago to Constantine, returning Wed, Oct 29, priced at $682 found 6 days ago
Turkish Airlines
Wed, Oct 29 - Wed, Dec 3
ORD
Chicago
CZL
Constantine
$692 Roundtrip, found 5 days ago
$692
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Wed, Oct 29 from Chicago to Constantine, returning Wed, Dec 3, priced at $692 found 5 days ago
Turkish Airlines
Fri, Oct 31 - Mon, Dec 1
ORD
Chicago
CZL
Constantine
$722 Roundtrip, found 5 days ago
$722
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Fri, Oct 31 from Chicago to Constantine, returning Mon, Dec 1, priced at $722 found 5 days ago
Turkish Airlines
Fri, Oct 31 - Wed, Dec 3
ORD
Chicago
CZL
Constantine
$732 Roundtrip, found 5 days ago
$732
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Fri, Oct 31 from Chicago to Constantine, returning Wed, Dec 3, priced at $732 found 5 days ago
Turkish Airlines
Wed, Oct 29 - Thu, Nov 27
ORD
Chicago
CZL
Constantine
$759 Roundtrip, found 5 days ago
$759
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Wed, Oct 29 from Chicago to Constantine, returning Thu, Nov 27, priced at $759 found 5 days ago
Turkish Airlines
Sat, Oct 18 - Wed, Oct 29
ORD
Chicago
CZL
Constantine
$769 Roundtrip, found 6 days ago
$769
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Sat, Oct 18 from Chicago to Constantine, returning Wed, Oct 29, priced at $769 found 6 days ago
Air France
Tue, Oct 21 - Wed, Nov 19
ORD
Chicago
CZL
Constantine
$901 Roundtrip, found 1 day ago
$901
Roundtrip
found 1 day ago
Select Air France flight, departing Tue, Oct 21 from Chicago to Constantine, returning Wed, Nov 19, priced at $901 found 1 day ago
Flights from Chicago (ORD) to Constantine (CZL)
Origin airport
O'Hare Intl.
Destination airport
Mohamed Boudiaf
Airlines serving
Turkish Airlines
Roundtrip price
$642
Distance
4808 mi

Chicago to Constantine Flights

The cheapest times to fly from Chicago to Constantine

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

 

The best time to book a flight from Chicago to Constantine

Sunday is one of the best days to book for cheap flights from Chicago to Constantine: 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 Chicago to Constantine

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 Chicago to Constantine in 2025. You can also book with separate airlines for your outbound and return journeys, from $639 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 Chicago to Constantine 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 Chicago to Constantine 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 O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL) cost?
Lock in a cheap one-way flight from $639 or cheap return flight from $642 from O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL)?
The cheapest month to fly from ORD to CZL is October, when there's less demand. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from ORD to CZL. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL)?
Nonstop flights from O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ORD to CZL?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL)?
To avoid possible delays on the O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL) route, travel before 3 PM. Departures after this time are 22% more likely to be canceled.**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 O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL) last-minute?
Waiting until right before your break to book a ticket from ORD to CZL generally means paying more. While it's possible to find some last-minute offers, they're not always guaranteed. Keep your travel plans flexible to boost your chances of snagging a bargain.
Is it cheaper to book an ORD to CZL flight and hotel package?
Booking an ORD to CZL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our impressive range of hotels and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Mohamed Boudiaf Airport (CZL)?
In most cases, you can reschedule or cancel your ORD to CZL flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further information, go to our Customer Service portal.

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*Available to One Key members.