$350 Cheap Flights from Houston (IAH) to Champaign (CMI)

View $350 flight on Wed, Aug 20, 2025Opens in a new window

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

Cheap Flights from Houston to Champaign (IAH-CMI)

Prices were available within the past 7 days and start at $350 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
Wed, Oct 1 - Wed, Oct 8
IAH
Houston
CMI
Champaign
$446 Roundtrip, found 1 day ago
$446
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 1 from Houston to Champaign, returning Wed, Oct 8, priced at $446 found 1 day ago
American Airlines
Wed, Oct 1 - Sat, Oct 4
IAH
Houston
CMI
Champaign
$453 Roundtrip, found 3 days ago
$453
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct 1 from Houston to Champaign, returning Sat, Oct 4, priced at $453 found 3 days ago
American Airlines
Wed, Sep 10 - Sun, Sep 14
IAH
Houston
CMI
Champaign
$461 Roundtrip, found 6 hours ago
$461
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Sep 10 from Houston to Champaign, returning Sun, Sep 14, priced at $461 found 6 hours ago
American Airlines
Wed, Sep 10 - Sun, Sep 14
IAH
Houston
CMI
Champaign
$474 Roundtrip, found 1 day ago
$474
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Sep 10 from Houston to Champaign, returning Sun, Sep 14, priced at $474 found 1 day ago
American Airlines
Fri, Nov 14 - Mon, Nov 17
IAH
Houston
CMI
Champaign
$476 Roundtrip, found 3 days ago
$476
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Nov 14 from Houston to Champaign, returning Mon, Nov 17, priced at $476 found 3 days ago
American Airlines
Wed, Sep 10 - Sun, Sep 14
IAH
Houston
CMI
Champaign
$486 Roundtrip, found 6 hours ago
$486
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Sep 10 from Houston to Champaign, returning Sun, Sep 14, priced at $486 found 6 hours ago
American Airlines
Wed, Sep 10 - Sun, Sep 14
IAH
Houston
CMI
Champaign
$494 Roundtrip, found 6 hours ago
$494
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Sep 10 from Houston to Champaign, returning Sun, Sep 14, priced at $494 found 6 hours ago
American Airlines
Fri, Oct 31 - Mon, Nov 3
IAH
Houston
CMI
Champaign
$495 Roundtrip, found 5 days ago
$495
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Houston to Champaign, returning Mon, Nov 3, priced at $495 found 5 days ago
American Airlines
Tue, Aug 19 - Tue, Aug 26
IAH
Houston
CMI
Champaign
$496 Roundtrip, found 22 hours ago
$496
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Tue, Aug 19 from Houston to Champaign, returning Tue, Aug 26, priced at $496 found 22 hours ago
American Airlines
Sat, Aug 16 - Sat, Aug 23
IAH
Houston
CMI
Champaign
$501 Roundtrip, found 3 days ago
$501
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Aug 16 from Houston to Champaign, returning Sat, Aug 23, priced at $501 found 3 days ago

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

October is typically the cheapest month to fly

From $332 - $882 per traveler.

Graph displaying average flight prices per month

Alternative airports near Champaign

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

Select flight to University Of Illinois Urbana-Champaign Williard CMI. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $541
CMI
University Of Illinois Urbana-Champaign Williard
CheapestClosest
Average driving time to city center11 min
Flights from $541
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 October. 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 $350 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?
Snag a cheap one-way flight from $350 or cheap return flight from $446 from George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI) 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 George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Traveling in October may help you find better deals, as it's the cheapest month for flights between IAH and CMI. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from IAH to CMI. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
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.