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Cheap flights from Illinois to Killeen from $194

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Killeen departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Killeen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:11 am - 3:37 pmORD-GRK
7h 26m1 stop
American Airlines Logo
11:52 am - 5:14 pmGRK-ORD
5h 22m1 stop
$317American Airlines
Find Deal
Tue, Dec 9 - Thu, Dec 11
American Airlines Logo
9:36 am - 3:56 pmSTL-GRK
6h 20m1 stop
American Airlines Logo
11:57 am - 5:07 pmGRK-STL
5h 10m1 stop
$342American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
6:00 am - 3:56 pmSTL-GRK
9h 56m2 stops
American Airlines Logo
11:57 am - 5:07 pmGRK-STL
5h 10m1 stop
$402American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
3:14 pm - 10:18 pmORD-GRK
7h 04m1 stop
American Airlines Logo
5:05 am - 9:45 amGRK-ORD
4h 40m1 stop
$411American Airlines
Find Deal
Sat, Dec 6 - Mon, Dec 8
American Airlines Logo
5:35 am - 11:16 amORD-GRK
5h 41m1 stop
American Airlines Logo
6:05 am - 12:41 pmGRK-ORD
6h 36m1 stop
$420American Airlines
Find Deal
Thu, Nov 27 - Mon, Dec 1
American Airlines Logo
5:14 am - 9:44 amSTL-GRK
4h 30m1 stop
American Airlines Logo
5:24 am - 8:48 amGRK-STL
3h 24m1 stop
$429American Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
American Airlines Logo
3:10 pm - 10:01 amORD-GRK
18h 51m2 stops
American Airlines Logo
6:05 am - 12:41 pmGRK-ORD
6h 36m1 stop
$460American Airlines
Find Deal
Thu, Nov 27 - Mon, Dec 1
American Airlines Logo
5:21 am - 11:27 amORD-GRK
6h 06m1 stop
American Airlines Logo
3:58 pm - 10:20 pmGRK-ORD
6h 22m1 stop
$482American Airlines
Find Deal
Mon, Dec 29 - Thu, Jan 1
American Airlines Logo
6:00 am - 3:56 pmSTL-GRK
9h 56m2 stops
American Airlines Logo
6:00 am - 1:36 pmGRK-STL
7h 36m2 stops
$500American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
5:55 pm - 10:24 pmSTL-GRK
4h 29m1 stop
American Airlines Logo
10:37 am - 4:09 pmGRK-STL
5h 32m1 stop
$505American Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11

American Airlines flights from Illinois to Killeen

Our best American Airlines deals on Illinois to Killeen flight tickets
American Airlines
Dec 9
ORD8:11 amChicago O'Hare Intl
7h 26m
1 stop
GRK3:37 pmKilleen Fort Hood Regional
Dec 11
GRK11:52 amKilleen Fort Hood Regional
5h 22m
1 stop
ORD5:14 pmChicago O'Hare Intl
$317
Find similar
American Airlines
Dec 24
STL9:36 amLambert-St Louis
6h 20m
1 stop
GRK3:56 pmKilleen Fort Hood Regional
Dec 31
GRK11:57 amKilleen Fort Hood Regional
5h 10m
1 stop
STL5:07 pmLambert-St Louis
$342
Find similar
American Airlines
Dec 24
STL6:00 amLambert-St Louis
9h 56m
2 stops
GRK3:56 pmKilleen Fort Hood Regional
Dec 31
GRK11:57 amKilleen Fort Hood Regional
5h 10m
1 stop
STL5:07 pmLambert-St Louis
$402
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Killeen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 11, 2025.
Use the filters below to find and compare flights from Illinois to Killeen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

Tue 12/9

8:11 am-3:37 pm

1 stop7h 26m

Killeen Fort Hood Regional

Thu 12/11

11:52 am-5:14 pm

1 stop5h 22m

$317

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

9:36 am-3:56 pm

1 stop6h 20m

Killeen Fort Hood Regional

Wed 12/31

11:57 am-5:07 pm

1 stop5h 10m

$342

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

6:00 am-3:56 pm

2 stops9h 56m

Killeen Fort Hood Regional

Wed 12/31

11:57 am-5:07 pm

1 stop5h 10m

$402

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

Sat 12/6

3:14 pm-10:18 pm

1 stop7h 04m

Killeen Fort Hood Regional

Mon 12/8

5:05 am-9:45 am

1 stop4h 40m

$411

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

Thu 11/27

5:35 am-11:16 am

1 stop5h 41m

Killeen Fort Hood Regional

Mon 12/1

6:05 am-12:41 pm

1 stop6h 36m

$420

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 3/4

5:14 am-9:44 am

1 stop4h 30m

Killeen Fort Hood Regional

Sun 3/8

5:24 am-8:48 am

1 stop3h 24m

$429

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

Thu 11/27

3:10 pm-10:01 am

2 stops18h 51m

Killeen Fort Hood Regional

Mon 12/1

6:05 am-12:41 pm

1 stop6h 36m

$460

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

Mon 12/29

5:21 am-11:27 am

1 stop6h 06m

Killeen Fort Hood Regional

Thu 1/1

3:58 pm-10:20 pm

1 stop6h 22m

$482

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

6:00 am-3:56 pm

2 stops9h 56m

Killeen Fort Hood Regional

Wed 12/31

6:00 am-1:36 pm

2 stops7h 36m

$500

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Sat 3/7

5:55 pm-10:24 pm

1 stop4h 29m

Killeen Fort Hood Regional

Wed 3/11

10:37 am-4:09 pm

1 stop5h 32m

$505

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Killeen from

How to get the cheapest flight ticket from Illinois to Killeen

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Killeen?

On average, the least expensive day to fly to Killeen from Illinois is on a Saturday. momondo users have found tickets for Saturday departures for as low as $376. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Killeen is Sunday, with ticket prices averaging around $464.

What is the cheapest time of day to depart on your flight to Killeen?

According to our data, the cheapest time of day to fly to Killeen is in the afternoon. momondo users have found flights departing from Illinois to Killeen in the afternoon for as low as $400. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Killeen are more costly in the morning, with an average ticket price of $458. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Illinois to Killeen flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Killeen

Direct flights

None
There are no direct flights from Illinois to Killeen. There are no popular flight routes from Illinois to Killeen.
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  • When did momondo last update prices for flights from Illinois to Killeen Fort Hood Regional Airport?

    Prices for flights from Illinois to Killeen Fort Hood Regional Airport are updated daily.

  • How many operators does momondo search for flights from Illinois to Killeen Fort Hood Regional Airport?

  • How old do you have to be to fly from Illinois to Killeen Fort Hood Regional Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Killeen Fort Hood Regional Airport.

  • What documentation or ID do you need to fly to Killeen Fort Hood Regional Airport?

    The required travel and health documents for your Killeen Fort Hood Regional Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Killeen Fort Hood Regional Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Killeen

Compare and see reviews for airlines that fly from Illinois to Killeen with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $234Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights

Traveling to a place near Killeen?

Book flights to Killeen if you plan to visit one of these locations
Temple
Salado
Copperas Cove
Fort Hood

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Killeen?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Killeen. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to Killeen with flexible booking policies on momondo?

Flights from Illinois to Killeen with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to Killeen?

Once all potential Illinois to Killeen flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Killeen right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Killeen from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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