$283 Cheap Flights from Killeen (GRK) to Champaign (CMI)

View $283 flight on Wed, Dec 31, 2025Opens in a new window

Popular airlines from Killeen, TX (GRK-Killeen-Fort Hood Regional) to Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard)

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Cheap Flights from Killeen to Champaign (GRK-CMI)

Prices were available within the past 7 days and start at $283 for one-way flights and $436 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Jan 16 - Mon, Jan 26
GRK
Killeen
CMI
Champaign
$436 Roundtrip, found 1 day ago
$436
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jan 16 from Killeen to Champaign, returning Mon, Jan 26, priced at $436 found 1 day ago
American Airlines
Tue, Jan 27 - Sun, Feb 15
GRK
Killeen
CMI
Champaign
$442 Roundtrip, found 1 day ago
$442
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Jan 27 from Killeen to Champaign, returning Sun, Feb 15, priced at $442 found 1 day ago
American Airlines
Thu, Dec 25 - Tue, Jan 13
GRK
Killeen
CMI
Champaign
$443 Roundtrip, found 1 day ago
$443
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 25 from Killeen to Champaign, returning Tue, Jan 13, priced at $443 found 1 day ago
American Airlines
Wed, Dec 31 - Sat, Jan 17
GRK
Killeen
CMI
Champaign
$449 Roundtrip, found 1 day ago
$449
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Dec 31 from Killeen to Champaign, returning Sat, Jan 17, priced at $449 found 1 day ago
American Airlines
Thu, Jan 15 - Mon, Jan 26
GRK
Killeen
CMI
Champaign
$466 Roundtrip, found 1 day ago
$466
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Jan 15 from Killeen to Champaign, returning Mon, Jan 26, priced at $466 found 1 day ago
American Airlines
Thu, Jan 29 - Sun, Feb 15
GRK
Killeen
CMI
Champaign
$472 Roundtrip, found 1 day ago
$472
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Jan 29 from Killeen to Champaign, returning Sun, Feb 15, priced at $472 found 1 day ago
American Airlines
Thu, Dec 25 - Thu, Jan 15
GRK
Killeen
CMI
Champaign
$473 Roundtrip, found 1 day ago
$473
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 25 from Killeen to Champaign, returning Thu, Jan 15, priced at $473 found 1 day ago
American Airlines
Tue, Dec 30 - Sat, Jan 17
GRK
Killeen
CMI
Champaign
$479 Roundtrip, found 1 day ago
$479
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Dec 30 from Killeen to Champaign, returning Sat, Jan 17, priced at $479 found 1 day ago
American Airlines
Thu, Dec 25 - Sat, Jan 10
GRK
Killeen
CMI
Champaign
$480 Roundtrip, found 1 day ago
$480
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 25 from Killeen to Champaign, returning Sat, Jan 10, priced at $480 found 1 day ago
American Airlines
Thu, Dec 25 - Tue, Jan 6
GRK
Killeen
CMI
Champaign
$486 Roundtrip, found 1 day ago
$486
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 25 from Killeen to Champaign, returning Tue, Jan 6, priced at $486 found 1 day ago
American Airlines
Mon, Jan 5 - Sun, Jan 18
GRK
Killeen
CMI
Champaign
$493 Roundtrip, found 1 day ago
$493
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Jan 5 from Killeen to Champaign, returning Sun, Jan 18, priced at $493 found 1 day ago

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 $473
CMI
University Of Illinois Urbana-Champaign Williard
CheapestClosest
Average driving time to city center11 min
Flights from $473
Flights from Killeen (GRK) to Champaign (CMI)
Origin airport
Killeen-Fort Hood Regional
Destination airport
University Of Illinois Urbana-Champaign Williard
Airlines serving
American Airlines
Roundtrip price
$436
Distance
819 mi

Killeen to Champaign Flights

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

 

The best time to book a flight from Killeen to Champaign

Sunday is one of the best days to book for cheap flights from Killeen 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 Killeen 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 Killeen to Champaign in 2026. You can also book with separate airlines for your outbound and return journeys, from $283 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 Killeen 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 Killeen 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 Killeen-Fort Hood Regional Airport (GRK) to University Of Illinois Urbana-Champaign Williard Airport (CMI) cost?
Snag a cheap one-way flight from $283 or cheap return flight from $436 from Killeen-Fort Hood Regional Airport (GRK) to University Of Illinois Urbana-Champaign Williard Airport (CMI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Killeen-Fort Hood Regional Airport (GRK) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
January is the cheapest month to fly from GRK to CMI. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Killeen-Fort Hood Regional Airport (GRK) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from GRK to CMI. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Killeen-Fort Hood Regional Airport (GRK) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Direct flights from Killeen-Fort Hood Regional Airport (GRK) 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 filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GRK to CMI?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Killeen-Fort Hood Regional Airport (GRK) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
To touch down at University Of Illinois Urbana-Champaign Williard Airport (CMI) without delays, opt for a flight that leaves Killeen-Fort Hood Regional Airport (GRK) before 3 PM. The chance 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 Killeen-Fort Hood Regional Airport (GRK) to University Of Illinois Urbana-Champaign Williard Airport (CMI) last-minute?
Last-minute fares from GRK to CMI are generally more expensive. For the best prices, start looking for flights well in advance. That said, if you can play around with your travel dates, it's possible to land a cheap ticket right before you leave.
Is it cheaper to book a GRK to CMI flight and hotel package?
Compared with arranging flights and hotels separately, booking a GRK to CMI flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our wide range of hotels, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Killeen-Fort Hood Regional Airport (GRK) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
If you reserved your GRK to CMI flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.