$246 Cheap Flights from Houston (IAH) to Champaign (CMI)

View $246 flight on Wed, Jul 23, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard)

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Cheap Flights from Houston to Champaign (IAH-CMI)

Prices were available within the past 7 days and start at $246 for one-way flights and $446 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Aug 2 - Wed, Aug 6
IAH
Houston
CMI
Champaign
$446 Roundtrip, found 6 days ago
$446
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Aug 2 from Houston to Champaign, returning Wed, Aug 6, priced at $446 found 6 days ago
American Airlines
Wed, Sep 10 - Sun, Sep 14
IAH
Houston
CMI
Champaign
$461 Roundtrip, found 9 hours ago
$461
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Wed, Sep 10 from Houston to Champaign, returning Sun, Sep 14, priced at $461 found 9 hours ago
American Airlines
Sat, Aug 16 - Thu, Aug 21
IAH
Houston
CMI
Champaign
$465 Roundtrip, found 1 day ago
$465
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Aug 16 from Houston to Champaign, returning Thu, Aug 21, priced at $465 found 1 day ago
American Airlines
Sat, Aug 2 - Wed, Aug 6
IAH
Houston
CMI
Champaign
$471 Roundtrip, found 1 day ago
$471
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Aug 2 from Houston to Champaign, returning Wed, Aug 6, priced at $471 found 1 day ago
American Airlines
Fri, Aug 29 - Mon, Sep 1
IAH
Houston
CMI
Champaign
$476 Roundtrip, found 11 hours ago
$476
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Fri, Aug 29 from Houston to Champaign, returning Mon, Sep 1, priced at $476 found 11 hours ago
American Airlines
Sat, Aug 2 - Sun, Aug 3
IAH
Houston
CMI
Champaign
$480 Roundtrip, found 6 days ago
$480
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Aug 2 from Houston to Champaign, returning Sun, Aug 3, priced at $480 found 6 days ago
American Airlines
Sat, Aug 16 - Thu, Aug 21
IAH
Houston
CMI
Champaign
$486 Roundtrip, found 1 day ago
$486
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Aug 16 from Houston to Champaign, returning Thu, Aug 21, priced at $486 found 1 day ago
American Airlines
Fri, Aug 8 - Sun, Aug 10
IAH
Houston
CMI
Champaign
$489 Roundtrip, found 4 days ago
$489
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Aug 8 from Houston to Champaign, returning Sun, Aug 10, priced at $489 found 4 days ago
American Airlines
Wed, Sep 10 - Sun, Sep 14
IAH
Houston
CMI
Champaign
$495 Roundtrip, found 9 hours ago
$495
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Wed, Sep 10 from Houston to Champaign, returning Sun, Sep 14, priced at $495 found 9 hours ago
American Airlines
Thu, May 14 - Sun, May 17
IAH
Houston
CMI
Champaign
$496 Roundtrip, found 3 days ago
$496
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, May 14 from Houston to Champaign, returning Sun, May 17, priced at $496 found 3 days ago

Find the cheapest month to fly from Houston (IAH) to Champaign (CMI)

September is typically the cheapest month to fly

From $296 - $882 per traveler.

Graph displaying average flight prices per month

Flights from Houston (IAH) to Champaign (CMI)
Origin airport
George Bush Intercontinental
Destination airport
University Of Illinois Urbana-Champaign Williard
Airlines serving
American Airlines
Roundtrip price
$446
Distance
800 mi

Houston to Champaign Flights

The cheapest times to fly from Houston to Champaign

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

 

The best time to book a flight from Houston to Champaign

Sunday is one of the best days to book for cheap flights from Houston to Champaign: 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 Houston to Champaign

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 Houston to Champaign in 2025. You can also book with separate airlines for your outbound and return journeys, from $246 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 Houston to Champaign 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 Houston to Champaign 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 George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI) cost?
Discover the latest flight deals from IAH to CMI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAH to CMI?
The cheapest flights from IAH to CMI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAH to CMI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAH to CMI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Nonstop flights from George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAH to CMI?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
To reach University Of Illinois Urbana-Champaign Williard Airport (CMI) without delays, select a flight that takes off from George Bush Intercontinental Airport (IAH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI) last-minute?
Last-minute fares from IAH to CMI are generally more expensive. For the best rates, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, it's possible to score a cheap ticket right before your journey.
Is it cheaper to book an IAH to CMI flight and hotel package?
Compared with arranging flights and hotels separately, booking an IAH to CMI flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place takes the hassle out of travel planning. Simply pick your flights and choose from our wide range of stays, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Generally, it's possible to reschedule or cancel your IAH to CMI flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.