$575+ Cheap flights from Illinois to Cortez (CEZ)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CEZ
Nov 29 — Dec 61
1 adult, Economy
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Cheapest flights from Illinois to CortezExplore the most affordable flight options available from Illinois to Cortez. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.
Explore the most affordable flight options available from Illinois to Cortez. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/312:09 pmSTL - CEZ
1 stop9h 41mMultiple Airlines
Wed 11/511:55 amCEZ - STL
2 stops28h 32mMultiple Airlines
Deal found 10/30![Multiple Airlines logo]()
$575
Cheap flight deals from Illinois to Cortez
Keep the following information in mind while searching for Illinois to Cortez flight deals. Data was last updated October 30, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Best time to book a flight from Illinois to Cortez
Have a flexible travel schedule? Discover the best time to fly to Cortez from Illinois 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 Illinois to Cortez
What is the cheapest month to book a flight from Illinois to Cortez?
Currently, July is the cheapest month in which you can book a flight from Illinois to Cortez (average of $248). Flying from Illinois to Cortez in March is currently the most expensive (average of $389). 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.