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Cheap flights from Illinois to Killeen from $291

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Killeen departing on 10/23. 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

American Airlines Logo
8:49 am - 2:30 pmSTL-GRK
5h 41m1 stop
American Airlines Logo
6:13 pm - 11:49 pmGRK-STL
5h 36m1 stop
$291American Airlines
Find Deal
jue., oct. 23 - dom., oct. 26
American Airlines Logo
5:18 am - 9:38 amSTL-GRK
4h 20m1 stop
American Airlines Logo
4:32 pm - 10:23 pmGRK-STL
5h 51m1 stop
$353American Airlines
Find Deal
jue., sep. 18 - dom., sep. 21
American Airlines Logo
11:14 am - 7:47 pmSTL-GRK
8h 33m2 stops
American Airlines Logo
10:39 am - 4:11 pmGRK-STL
5h 32m1 stop
$356American Airlines
Find Deal
mié., dic. 24 - mié., dic. 31
American Airlines Logo
11:14 am - 7:47 pmSTL-GRK
8h 33m2 stops
American Airlines Logo
12:45 pm - 10:02 pmGRK-STL
9h 17m2 stops
$421American Airlines
Find Deal
mié., dic. 24 - mié., dic. 31
American Airlines Logo
5:40 pm - 10:45 pmMLI-GRK
5h 05m1 stop
American Airlines Logo
5:16 am - 10:29 amGRK-MLI
5h 13m1 stop
$460American Airlines
Find Deal
sáb., sep. 13 - jue., sep. 18
American Airlines Logo
5:40 pm - 10:45 pmMLI-GRK
5h 05m1 stop
American Airlines Logo
4:32 pm - 11:48 pmGRK-MLI
7h 16m2 stops
$465American Airlines
Find Deal
sáb., sep. 13 - jue., sep. 18
American Airlines Logo
6:00 am - 2:30 pmSTL-GRK
8h 30m2 stops
American Airlines Logo
6:13 pm - 11:49 pmGRK-STL
5h 36m1 stop
$481American Airlines
Find Deal
jue., oct. 23 - dom., oct. 26
American Airlines Logo
5:18 am - 9:38 amSTL-GRK
4h 20m1 stop
American Airlines Logo
5:16 am - 1:23 pmGRK-STL
8h 07m2 stops
$506American Airlines
Find Deal
jue., sep. 18 - dom., sep. 21
American Airlines Logo
11:20 am - 10:45 pmMLI-GRK
11h 25m2 stops
American Airlines Logo
4:32 pm - 11:48 pmGRK-MLI
7h 16m2 stops
$517American Airlines
Find Deal
sáb., sep. 13 - jue., sep. 18
American Airlines Logo
6:00 am - 2:30 pmSTL-GRK
8h 30m2 stops
American Airlines Logo
5:16 am - 1:44 pmGRK-STL
8h 28m2 stops
$601American Airlines
Find Deal
jue., oct. 23 - dom., oct. 26

American Airlines flights from Illinois to Killeen

Our best American Airlines deals on Illinois to Killeen flight tickets
American Airlines
Oct 23
STL8:49 amLambert-St Louis
5h 41m
1 stop
GRK2:30 pmKilleen Fort Hood Regional
Oct 26
GRK6:13 pmKilleen Fort Hood Regional
5h 36m
1 stop
STL11:49 pmLambert-St Louis
$291
Find similar
American Airlines
Sep 18
STL5:18 amLambert-St Louis
4h 20m
1 stop
GRK9:38 amKilleen Fort Hood Regional
Sep 21
GRK4:32 pmKilleen Fort Hood Regional
5h 51m
1 stop
STL10:23 pmLambert-St Louis
$353
Find similar
American Airlines
Dec 24
STL11:14 amLambert-St Louis
8h 33m
2 stops
GRK7:47 pmKilleen Fort Hood Regional
Dec 31
GRK10:39 amKilleen Fort Hood Regional
5h 32m
1 stop
STL4:11 pmLambert-St Louis
$356
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 agosto 25, 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

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

jue. 10/23

8:49 am-2:30 pm

1 stop5h 41m

Killeen Fort Hood Regional

dom. 10/26

6:13 pm-11:49 pm

1 stop5h 36m

$291

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

jue. 9/18

5:18 am-9:38 am

1 stop4h 20m

Killeen Fort Hood Regional

dom. 9/21

4:32 pm-10:23 pm

1 stop5h 51m

$353

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

mié. 12/24

11:14 am-7:47 pm

2 stops8h 33m

Killeen Fort Hood Regional

mié. 12/31

10:39 am-4:11 pm

1 stop5h 32m

$356

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

mié. 12/24

11:14 am-7:47 pm

2 stops8h 33m

Killeen Fort Hood Regional

mié. 12/31

12:45 pm-10:02 pm

2 stops9h 17m

$421

MolineKilleen

MLI - GRK

MLIGRK

Moline Quad-City

sáb. 9/13

5:40 pm-10:45 pm

1 stop5h 05m

Killeen Fort Hood Regional

jue. 9/18

5:16 am-10:29 am

1 stop5h 13m

$460

MolineKilleen

MLI - GRK

MLIGRK

Moline Quad-City

sáb. 9/13

5:40 pm-10:45 pm

1 stop5h 05m

Killeen Fort Hood Regional

jue. 9/18

4:32 pm-11:48 pm

2 stops7h 16m

$465

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

jue. 10/23

6:00 am-2:30 pm

2 stops8h 30m

Killeen Fort Hood Regional

dom. 10/26

6:13 pm-11:49 pm

1 stop5h 36m

$481

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

jue. 9/18

5:18 am-9:38 am

1 stop4h 20m

Killeen Fort Hood Regional

dom. 9/21

5:16 am-1:23 pm

2 stops8h 07m

$506

MolineKilleen

MLI - GRK

MLIGRK

Moline Quad-City

sáb. 9/13

11:20 am-10:45 pm

2 stops11h 25m

Killeen Fort Hood Regional

jue. 9/18

4:32 pm-11:48 pm

2 stops7h 16m

$517

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

jue. 10/23

6:00 am-2:30 pm

2 stops8h 30m

Killeen Fort Hood Regional

dom. 10/26

5:16 am-1:44 pm

2 stops8h 28m

$601

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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.
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
10,000 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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