Cheap Flights to Cook County from $30

The cheapest month to fly to Cook County is March when demand is low. Off-peak months are usually when you'll find cheap fares. To keep costs down, steer clear of flying during school breaks and public holidays.

Land cheap flights to Cook County from New York, Washington and Dallas. These cities usually offer the lowest fares to this top destination. But remember that demand, seasonality and stopovers will also have an impact on rates, so stay flexible and book when prices are right.

There are 150 US destinations you're able to fly to Cook County directly from. Compare the options by selecting the "Direct flights only" box on Expedia and find the ideal starting point for you. Here are some of the leading cities to jet off from:

• New York
• Washington
• Dallas
• Boston
• Phoenix

Book in advance or look for cheap flights to Cook County during off-peak months like December and January. Leaving on a Thursday could also save you 16% on average compared to a Sunday flight.* The Expedia app makes it even easier to know exactly when to book. Just activate the toggle for "Watch prices" and you'll receive a notification when fares drop.

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Although booking in advance is generally the easiest way to save money, don't panic if your Cook County trip is last minute. You can still get cheap flights to Cook County, especially if your plans have a little wiggle room. Try switching up your trip dates, exploring different ticket options or departing from another airport.

Get the departure dates you want and a price that works with your budget by booking your domestic flight to Cook County up to 28 days in advance. Search for tickets two to four months ahead if you're headed to Cook County from an international destination.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Sundays are typically the best day to book a cheap flight to Cook County, with savings of around 8% on average compared to a Friday. If you decide to buy tickets on a Friday, expect to spend more as this is often the most expensive day.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Take your pick of these two leading airlines that have flights to Cook County:

• United Airlines - 13,395 flights to Cook County each month, including 13,391 flights to O'Hare Intl. Airport (ORD) per month.
• American Airlines - 10,417 flights to Cook County each month, including 10,417 flights to O'Hare Intl. Airport (ORD) per month.

Cook County's main airport is Midway Intl. Airport (MDW). If you want more nearby choices when flying to Cook County, check out O'Hare Intl. Airport (ORD), Lewis University Airport (LOT) or Gary, IN (GYY-Gary - Chicago Intl.). It's also possible to fly to Cook County through Chicago Executive Airport (PWK).

Book a Cook County, Illinois flight and hotel package deal on Expedia, and you could enjoy significant savings. It's simple to bundle your flights and accommodations, and you can even add activities and car rentals to create your own customized Cook County trip. Plus, nothing beats the convenience of booking everything in the same place.

It's often possible to cancel or change your flight to Cook County. Many airlines allow you to cancel flights for free within 24 hours of booking. However, some flights are non-refundable, and airlines may offer you a credit toward a future trip instead of a direct refund. To secure cheap flights to Cook County with flexible change policies, check "Changes included" or "No cancel fee" when you search. Need more information? Check out our Customer Service Portal.