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Cheap flights from Illinois to Killeen from $193

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 4/10. 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
7:00 am - 11:31 am
STL
-
GRK
4h 31m
1 stop
American Airlines Logo
6:33 pm - 11:22 pm
GRK
-
STL
4h 49m
1 stop
$205American Airlines
週二, 2月 24 - 週二, 3月 10
American Airlines Logo
5:12 am - 9:45 am
STL
-
GRK
4h 33m
1 stop
American Airlines Logo
6:33 pm - 11:22 pm
GRK
-
STL
4h 49m
1 stop
$330American Airlines
週四, 2月 26 - 週二, 3月 3
American Airlines Logo
8:00 am - 6:03 pm
STL
-
GRK
10h 03m
2 stops
American Airlines Logo
12:01 pm - 5:13 pm
GRK
-
STL
5h 12m
1 stop
$335American Airlines
週二, 2月 24 - 週二, 3月 10
American Airlines Logo
4:47 pm - 10:44 pm
ORD
-
GRK
5h 57m
1 stop
American Airlines Logo
7:21 pm - 12:42 am
GRK
-
ORD
5h 21m
1 stop
$387American Airlines
週四, 5月 28 - 週二, 6月 2
American Airlines Logo
6:10 am - 11:26 am
ORD
-
GRK
5h 16m
1 stop
American Airlines Logo
3:59 pm - 9:25 pm
GRK
-
ORD
5h 26m
1 stop
$411American Airlines
週四, 3月 5 - 週一, 3月 9
American Airlines Logo
4:45 pm - 10:44 pm
MLI
-
GRK
5h 59m
1 stop
American Airlines Logo
7:21 pm - 11:30 pm
GRK
-
MLI
4h 09m
1 stop
$414American Airlines
週四, 5月 28 - 週二, 6月 2
American Airlines Logo
6:46 am - 11:26 am
CMI
-
GRK
4h 40m
1 stop
American Airlines Logo
3:59 pm - 8:54 pm
GRK
-
CMI
4h 55m
1 stop
$416American Airlines
週六, 4月 4 - 週一, 4月 6
American Airlines Logo
12:01 pm - 10:03 pm
CMI
-
GRK
10h 02m
2 stops
American Airlines Logo
3:59 pm - 8:54 pm
GRK
-
CMI
4h 55m
1 stop
$422American Airlines
週六, 4月 4 - 週一, 4月 6
American Airlines Logo
10:49 am - 6:03 pm
ORD
-
GRK
7h 14m
1 stop
American Airlines Logo
6:28 pm - 11:36 pm
GRK
-
ORD
5h 08m
1 stop
$447American Airlines
週四, 2月 26 - 週日, 3月 1
American Airlines Logo
3:50 pm - 10:45 pm
ORD
-
GRK
6h 55m
1 stop
American Airlines Logo
7:24 pm - 12:26 am
GRK
-
ORD
5h 02m
1 stop
$452American Airlines
週六, 6月 6 - 週二, 6月 9

American Airlines flights from Illinois to Killeen

Our best American Airlines deals on Illinois to Killeen flight tickets
American Airlines
Feb 24
STL7:00 amLambert-St Louis
4h 31m
1 stop
GRK11:31 amKilleen Fort Hood Regional
Mar 10
GRK6:33 pmKilleen Fort Hood Regional
4h 49m
1 stop
STL11:22 pmLambert-St Louis
$205
American Airlines
Feb 26
STL5:12 amLambert-St Louis
4h 33m
1 stop
GRK9:45 amKilleen Fort Hood Regional
Mar 3
GRK6:33 pmKilleen Fort Hood Regional
4h 49m
1 stop
STL11:22 pmLambert-St Louis
$330
American Airlines
Feb 24
STL8:00 amLambert-St Louis
10h 03m
2 stops
GRK6:03 pmKilleen Fort Hood Regional
Mar 10
GRK12:01 pmKilleen Fort Hood Regional
5h 12m
1 stop
STL5:13 pmLambert-St Louis
$335

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 2月 12, 2026.
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

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

週二 2/24

7:00 am-11:31 am

1 stop4h 31m

Killeen Fort Hood Regional

週二 3/10

6:33 pm-11:22 pm

1 stop4h 49m

$205

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

週四 2/26

5:12 am-9:45 am

1 stop4h 33m

Killeen Fort Hood Regional

週二 3/3

6:33 pm-11:22 pm

1 stop4h 49m

$330

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

週二 2/24

8:00 am-6:03 pm

2 stops10h 03m

Killeen Fort Hood Regional

週二 3/10

12:01 pm-5:13 pm

1 stop5h 12m

$335

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

週四 5/28

4:47 pm-10:44 pm

1 stop5h 57m

Killeen Fort Hood Regional

週二 6/2

7:21 pm-12:42 am

1 stop5h 21m

$387

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

週四 3/5

6:10 am-11:26 am

1 stop5h 16m

Killeen Fort Hood Regional

週一 3/9

3:59 pm-9:25 pm

1 stop5h 26m

$411

MolineKilleen

MLI - GRK

MLIGRK

Moline Quad-City

週四 5/28

4:45 pm-10:44 pm

1 stop5h 59m

Killeen Fort Hood Regional

週二 6/2

7:21 pm-11:30 pm

1 stop4h 09m

$414

ChampaignKilleen

CMI - GRK

CMIGRK

Champaign University-Willard

週六 4/4

6:46 am-11:26 am

1 stop4h 40m

Killeen Fort Hood Regional

週一 4/6

3:59 pm-8:54 pm

1 stop4h 55m

$416

ChampaignKilleen

CMI - GRK

CMIGRK

Champaign University-Willard

週六 4/4

12:01 pm-10:03 pm

2 stops10h 02m

Killeen Fort Hood Regional

週一 4/6

3:59 pm-8:54 pm

1 stop4h 55m

$422

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

週四 2/26

10:49 am-6:03 pm

1 stop7h 14m

Killeen Fort Hood Regional

週日 3/1

6:28 pm-11:36 pm

1 stop5h 08m

$447

ChicagoKilleen

ORD - GRK

ORDGRK

Chicago O'Hare Intl

週六 6/6

3:50 pm-10:45 pm

1 stop6h 55m

Killeen Fort Hood Regional

週二 6/9

7:24 pm-12:26 am

1 stop5h 02m

$452

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 airline that flies from Illinois to Killeen Fort Hood Regional?

American Airlines is the most popular carrier operating from Illinois to Killeen Fort Hood Regional

What airlines fly to Killeen?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Killeen from Illinois according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Killeen. Keep in mind that there are 6 different airlines that fly to Killeen on a routine basis, so you have a few additional options to choose from.

Cheap Illinois to Killeen flight deals and tips

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

Fastest flight time

4h 33m

Direct flights

None
The fastest flight from Illinois to Killeen takes 4h 33m
There are no direct flights from Illinois to Killeen. There are no popular flight routes from Illinois to Killeen.
Search flight deals

  • 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
11,267 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
Copperas Cove
Salado
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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