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Cheap flights from Illinois to Killeen from $221

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 9/6. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Killeen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:43 am - 12:17 pmSTL  Lambert-St Louis-GRK Killeen Fort Hood Regional
6h 34m1 stop Dallas/Fort Worth
American Airlines Logo
7:15 pm - 11:43 pmGRK  Killeen Fort Hood Regional-STL Lambert-St Louis
4h 28m1 stop Dallas/Fort Worth
$299American Airlines
Fri, Sep 11 - Sun, Sep 13
American Airlines Logo
7:00 am - 12:17 pmSTL  Lambert-St Louis-GRK Killeen Fort Hood Regional
5h 17m1 stop Dallas/Fort Worth
American Airlines Logo
7:02 pm - 11:42 pmGRK  Killeen Fort Hood Regional-STL Lambert-St Louis
4h 40m1 stop Dallas/Fort Worth
$299American Airlines
Thu, Oct 1 - Sun, Oct 11
American Airlines Logo
10:00 am - 2:41 pmORD  Chicago O'Hare Intl-GRK Killeen Fort Hood Regional
4h 41m1 stop Dallas/Fort Worth
American Airlines Logo
5:00 am - 10:05 amGRK  Killeen Fort Hood Regional-ORD Chicago O'Hare Intl
5h 05m1 stop Dallas/Fort Worth
$367American Airlines
Tue, Dec 1 - Thu, Dec 3
American Airlines Logo
5:00 am - 9:18 amORD  Chicago O'Hare Intl-GRK Killeen Fort Hood Regional
4h 18m1 stop Dallas/Fort Worth
American Airlines Logo
10:00 am - 3:19 pmGRK  Killeen Fort Hood Regional-ORD Chicago O'Hare Intl
5h 19m1 stop Dallas/Fort Worth
$367American Airlines
Wed, Sep 30 - Wed, Oct 7
American Airlines Logo
5:00 am - 9:18 amORD  Chicago O'Hare Intl-GRK Killeen Fort Hood Regional
4h 18m1 stop Dallas/Fort Worth
American Airlines Logo
12:28 pm - 6:35 pmGRK  Killeen Fort Hood Regional-ORD Chicago O'Hare Intl
6h 07m1 stop Dallas/Fort Worth
$367American Airlines
Mon, Sep 28 - Mon, Oct 5
American Airlines Logo
9:40 am - 2:35 pmORD  Chicago O'Hare Intl-GRK Killeen Fort Hood Regional
4h 55m1 stop Dallas/Fort Worth
American Airlines Logo
9:59 am - 3:55 pmGRK  Killeen Fort Hood Regional-ORD Chicago O'Hare Intl
5h 56m1 stop Dallas/Fort Worth
$403American Airlines
Tue, Sep 1 - Tue, Sep 8
American Airlines Logo
5:00 am - 9:29 amORD  Chicago O'Hare Intl-GRK Killeen Fort Hood Regional
4h 29m1 stop Dallas/Fort Worth
American Airlines Logo
12:47 pm - 7:36 pmGRK  Killeen Fort Hood Regional-ORD Chicago O'Hare Intl
6h 49m1 stop Dallas/Fort Worth
$427American Airlines
Mon, Sep 7 - Sun, Sep 20
American Airlines Logo
1:50 pm - 6:52 pmORD  Chicago O'Hare Intl-GRK Killeen Fort Hood Regional
5h 02m1 stop Dallas/Fort Worth
American Airlines Logo
4:09 pm - 9:09 pmGRK  Killeen Fort Hood Regional-ORD Chicago O'Hare Intl
5h 00m1 stop Dallas/Fort Worth
$483American Airlines
Sat, Aug 29 - Wed, Sep 9
American Airlines Logo
4:33 pm - 9:03 pmMLI  Moline Quad-City-GRK Killeen Fort Hood Regional
4h 30m1 stop Dallas/Fort Worth
American Airlines Logo
7:00 am - 11:38 amGRK  Killeen Fort Hood Regional-MLI Moline Quad-City
4h 38m1 stop Dallas/Fort Worth
$502American Airlines
Fri, Sep 11 - Sun, Sep 13
American Airlines Logo
12:08 pm - 6:45 pmMLI  Moline Quad-City-GRK Killeen Fort Hood Regional
6h 37m1 stop Dallas/Fort Worth
American Airlines Logo
3:09 pm - 12:05 amGRK  Killeen Fort Hood Regional-MLI Moline Quad-City
8h 56m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$507American Airlines
Fri, Sep 11 - Sun, Sep 13

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American Airlines flights from Illinois to Killeen

Our best American Airlines deals on Illinois to Killeen flight tickets
American Airlines
Sep 11
STL5:43 amLambert-St Louis
6h 34m
1 stop
GRK12:17 pmKilleen Fort Hood Regional
Sep 13
GRK7:15 pmKilleen Fort Hood Regional
4h 28m
1 stop
STL11:43 pmLambert-St Louis
$299
American Airlines
Dec 1
ORD10:00 amChicago O'Hare Intl
4h 41m
1 stop
GRK2:41 pmKilleen Fort Hood Regional
Dec 3
GRK5:00 amKilleen Fort Hood Regional
5h 05m
1 stop
ORD10:05 amChicago O'Hare Intl
$367
American Airlines
Sep 1
ORD9:40 amChicago O'Hare Intl
4h 55m
1 stop
GRK2:35 pmKilleen Fort Hood Regional
Sep 8
GRK9:59 amKilleen Fort Hood Regional
5h 56m
1 stop
ORD3:55 pmChicago O'Hare Intl
$403

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 August 17, 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

Cheapest round-trip

St. LouisKilleen

STL Lambert-St Louis - GRK Killeen Fort Hood Regional

STLGRK

Lambert-St Louis

Fri 9/11

5:43 am-12:17 pm

1 stop6h 34m

Killeen Fort Hood Regional

Sun 9/13

7:15 pm-11:43 pm

1 stop4h 28m

$299

St. LouisKilleen

STL Lambert-St Louis - GRK Killeen Fort Hood Regional

STLGRK

Lambert-St Louis

Thu 10/1

7:00 am-12:17 pm

1 stop5h 17m

Killeen Fort Hood Regional

Sun 10/11

7:02 pm-11:42 pm

1 stop4h 40m

$299

ChicagoKilleen

ORD Chicago O'Hare Intl - GRK Killeen Fort Hood Regional

ORDGRK

Chicago O'Hare Intl

Tue 12/1

10:00 am-2:41 pm

1 stop4h 41m

Killeen Fort Hood Regional

Thu 12/3

5:00 am-10:05 am

1 stop5h 05m

$367

ChicagoKilleen

ORD Chicago O'Hare Intl - GRK Killeen Fort Hood Regional

ORDGRK

Chicago O'Hare Intl

Wed 9/30

5:00 am-9:18 am

1 stop4h 18m

Killeen Fort Hood Regional

Wed 10/7

10:00 am-3:19 pm

1 stop5h 19m

$367

ChicagoKilleen

ORD Chicago O'Hare Intl - GRK Killeen Fort Hood Regional

ORDGRK

Chicago O'Hare Intl

Mon 9/28

5:00 am-9:18 am

1 stop4h 18m

Killeen Fort Hood Regional

Mon 10/5

12:28 pm-6:35 pm

1 stop6h 07m

$367

ChicagoKilleen

ORD Chicago O'Hare Intl - GRK Killeen Fort Hood Regional

ORDGRK

Chicago O'Hare Intl

Tue 9/1

9:40 am-2:35 pm

1 stop4h 55m

Killeen Fort Hood Regional

Tue 9/8

9:59 am-3:55 pm

1 stop5h 56m

$403

ChicagoKilleen

ORD Chicago O'Hare Intl - GRK Killeen Fort Hood Regional

ORDGRK

Chicago O'Hare Intl

Mon 9/7

5:00 am-9:29 am

1 stop4h 29m

Killeen Fort Hood Regional

Sun 9/20

12:47 pm-7:36 pm

1 stop6h 49m

$427

ChicagoKilleen

ORD Chicago O'Hare Intl - GRK Killeen Fort Hood Regional

ORDGRK

Chicago O'Hare Intl

Sat 8/29

1:50 pm-6:52 pm

1 stop5h 02m

Killeen Fort Hood Regional

Wed 9/9

4:09 pm-9:09 pm

1 stop5h 00m

$483
Quickest round-trip

MolineKilleen

MLI Moline Quad-City - GRK Killeen Fort Hood Regional

MLIGRK

Moline Quad-City

Fri 9/11

4:33 pm-9:03 pm

1 stop4h 30m

Killeen Fort Hood Regional

Sun 9/13

7:00 am-11:38 am

1 stop4h 38m

$502

MolineKilleen

MLI Moline Quad-City - GRK Killeen Fort Hood Regional

MLIGRK

Moline Quad-City

Fri 9/11

12:08 pm-6:45 pm

1 stop6h 37m

Killeen Fort Hood Regional

Sun 9/13

3:09 pm-12:05 am

2 stops8h 56m

$507

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?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Killeen from Illinois according to our data. United Airlines is the first choice among our users, with 43% 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

Best Price Found

$221

Fastest flight time

4h 16m

Direct flights

None
The best one-way flight to Killeen from Illinois in the past 72 hours is $221. The best round-trip flight deal from Illinois to Killeen found on momondo in the last 72 hours is $299.
The fastest flight from Illinois to Killeen takes 4h 16m
There are no direct flights from Illinois to Killeen. There are no popular flight routes from Illinois to Killeen.
Search flight deals

Frequently asked questions about flying from Illinois to Killeen

  • 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 $290Free CancellationRating
7.1
11,943 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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