$251 Cheap Flights from Champaign (CMI) to Chicago (ORD)

View $251 flight on Thu, Aug 21, 2025Opens in a new window

Popular airlines from Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard) to Chicago O'Hare Intl. Airport (ORD)

Cheap Flights from Champaign to Chicago (CMI-ORD)

Prices were available within the past 7 days and start at $251 for one-way flights and $295 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Oct 22 - Tue, Oct 28
CMI
Champaign
ORD
Chicago
$295 Roundtrip, found 1 day ago
$295
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from Champaign to Chicago, returning Tue, Oct 28, priced at $295 found 1 day ago
American Airlines
Wed, Oct 22 - Tue, Oct 28
CMI
Champaign
ORD
Chicago
$305 Roundtrip, found 1 day ago
$305
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from Champaign to Chicago, returning Tue, Oct 28, priced at $305 found 1 day ago
American Airlines
Wed, Oct 22 - Tue, Oct 28
CMI
Champaign
ORD
Chicago
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from Champaign to Chicago, returning Tue, Oct 28, priced at $314 found 1 day ago
American Airlines
Wed, Dec 17 - Sat, Dec 20
CMI
Champaign
ORD
Chicago
$325 Roundtrip, found 3 days ago
$325
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Dec 17 from Champaign to Chicago, returning Sat, Dec 20, priced at $325 found 3 days ago
American Airlines
Sat, Sep 20 - Sun, Sep 21
CMI
Champaign
ORD
Chicago
$328 Roundtrip, found 20 hours ago
$328
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sat, Sep 20 from Champaign to Chicago, returning Sun, Sep 21, priced at $328 found 20 hours ago
American Airlines
Wed, Dec 17 - Sat, Dec 20
CMI
Champaign
ORD
Chicago
$335 Roundtrip, found 3 days ago
$335
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Dec 17 from Champaign to Chicago, returning Sat, Dec 20, priced at $335 found 3 days ago
American Airlines
Sat, Sep 20 - Sun, Sep 21
CMI
Champaign
ORD
Chicago
$338 Roundtrip, found 20 hours ago
$338
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sat, Sep 20 from Champaign to Chicago, returning Sun, Sep 21, priced at $338 found 20 hours ago
American Airlines
Wed, Oct 22 - Tue, Oct 28
CMI
Champaign
ORD
Chicago
$345 Roundtrip, found 1 day ago
$345
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from Champaign to Chicago, returning Tue, Oct 28, priced at $345 found 1 day ago
American Airlines
Wed, Oct 1 - Mon, Oct 6
CMI
Champaign
ORD
Chicago
$347 Roundtrip, found 1 day ago
$347
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 1 from Champaign to Chicago, returning Mon, Oct 6, priced at $347 found 1 day ago
American Airlines
Wed, Oct 22 - Tue, Oct 28
CMI
Champaign
ORD
Chicago
$355 Roundtrip, found 1 day ago
$355
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from Champaign to Chicago, returning Tue, Oct 28, priced at $355 found 1 day ago

Find the cheapest month to fly from Champaign (CMI) to Chicago (ORD)

November is typically the cheapest month to fly

From $205 - $719 per traveler.

Graph displaying average flight prices per month

Alternative airports near Chicago

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city center is 23 minutes. Flights from $328
ORD
O'Hare Intl.
Cheapest
Average driving time to city center23 min
Flights from $328
Flights from Champaign (CMI) to Chicago (ORD)
Origin airport
University Of Illinois Urbana-Champaign Williard
Destination airport
O'Hare Intl.
Airlines serving
American Airlines
Roundtrip price
$295
Distance
135 mi
Average flight time
1 hour 14 mins

Champaign to Chicago Flights

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

 

The best time to book a flight from Champaign to Chicago

Sunday is one of the best days to book for cheap flights from Champaign 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 Champaign 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 Champaign to Chicago in 2025. You can also book with separate airlines for your outbound and return journeys, from $251 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 Champaign 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 Champaign 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 University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD) cost?
Snag a cheap one-way flight from $251 or cheap return flight from $295 from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD) 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 University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
The cheapest month to fly from CMI to ORD is October, when demand is low. Off-peak months are typically when airlines offer better prices between these airports.
Which airlines fly direct from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
Hop on a direct flight with American Airlines and head straight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD).
What is the cheapest airline that flies from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest CMI to ORD flight.
How many flights per day from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
When departing from University Of Illinois Urbana-Champaign Williard Airport (CMI), you can pick from an average of 2 daily direct flights to O'Hare Intl. Airport (ORD).
What are the most popular departure times for flights from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
The 12 PM departures from CMI to ORD are the most sought after. These flights can come with a higher price due to their popularity. If you want to save on your trip, choose a less crowded time to fly.
What day of the week has the most flights from CMI to ORD?
Saturday has the most flights from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD). Consider jetting off on this day and you'll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
The earliest flight leaving University Of Illinois Urbana-Champaign Williard Airport (CMI) is at around 6:01AM UTC-6. Catch this flight and you'll land at O'Hare Intl. Airport (ORD) at approximately 7:12AM UTC-6. The total travel time is 1h 11m.
How long does it take to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
The average flight time from CMI to ORD is 1 hour and 10 minutes, covering a distance of 140 mi.
What airline has the least delays from CMI to ORD?
Consider booking with United Airlines if you'd like to fly straight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD) without any holdups. This carrier has the strongest track record for punctuality, with an on-time score of 100%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
Select a flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures 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.
What airports do you fly into for Chicago from University Of Illinois Urbana-Champaign Williard Airport (CMI)?
If you're traveling on a direct flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Chicago, O'Hare Intl. Airport (ORD) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD) last-minute?
Waiting until right before your break to book a ticket from CMI to ORD often results in higher prices. While you might find some last-minute deals, there's no guarantee. Be flexible with your itinerary to boost your chances of landing a bargain.
Is it cheaper to book a CMI to ORD flight and hotel package?
You'll generally save money by booking a CMI 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 simple to manage everything in one place. Once you've selected your preferred accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to O'Hare Intl. Airport (ORD)?
Usually, it's possible to reschedule or cancel your CMI to ORD flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.