Cheap Flights from St. Louis (STL) to Constantine (CZL)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Constantine (CZL-Mohamed Boudiaf)

Cheap Flights from St. Louis to Constantine (STL-CZL)

Prices were available within the past 7 days and start at for one-way flights and $2,285 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Feb 8 - Mon, Feb 23
STL
St. Louis
CZL
Constantine
$2,285 Roundtrip, found 1 day ago
$2,285
Roundtrip
found 1 day ago
Select United flight, departing Sun, Feb 8 from St. Louis to Constantine, returning Mon, Feb 23, priced at $2,285 found 1 day ago
United
Sun, Feb 8 - Wed, Feb 18
STL
St. Louis
CZL
Constantine
$2,330 Roundtrip, found 1 day ago
$2,330
Roundtrip
found 1 day ago
Select United flight, departing Sun, Feb 8 from St. Louis to Constantine, returning Wed, Feb 18, priced at $2,330 found 1 day ago
United
Wed, Feb 11 - Mon, Feb 23
STL
St. Louis
CZL
Constantine
$2,645 Roundtrip, found 1 day ago
$2,645
Roundtrip
found 1 day ago
Select United flight, departing Wed, Feb 11 from St. Louis to Constantine, returning Mon, Feb 23, priced at $2,645 found 1 day ago
United
Wed, Feb 11 - Wed, Feb 18
STL
St. Louis
CZL
Constantine
$2,710 Roundtrip, found 1 day ago
$2,710
Roundtrip
found 1 day ago
Select United flight, departing Wed, Feb 11 from St. Louis to Constantine, returning Wed, Feb 18, priced at $2,710 found 1 day ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL) cost?
Get a cheap one-way flight or cheap return flight from $2,285 from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL)?
The cheapest month to fly from STL to CZL is February, when demand is low. Off-peak season is often when better flight deals are available between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest STL to CZL flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to CZL?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on various factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**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 Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL) last-minute?
Holding off until just before your trip to book a flight from STL to CZL generally means paying more. While you might find some last-minute offers, there's no guarantee. Be flexible with your itinerary to boost your chances of getting a bargain.
Is it cheaper to book a STL to CZL flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to CZL flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place takes the hassle out of travel planning. Simply pick your flights and choose from our extensive range of stays, then customize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Mohamed Boudiaf Airport (CZL)?
If you booked your STL to CZL flight within the last 24 hours, you may be able to cancel or modify it at no cost. 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, go to our Customer Service portal for further details.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Mohamed Boudiaf
Roundtrip price
$2,285
Distance
5037 mi

Book with confidence

St. Louis to Constantine Flights

The cheapest times to fly from St. Louis 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 St. Louis to Constantine are during the month of February. You can find some of the cheapest flights from St. Louis to Constantine with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Constantine

Sunday is one of the best days to book for cheap flights from St. Louis 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 St. Louis 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 St. Louis to Constantine in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 St. Louis 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 St. Louis 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.

 

St. Louis to Constantine Flights

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*Available to One Key members.