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Cheap flights from St. Louis to Killeen from $289

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Killeen departing on 12/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Killeen (STL-GRK)

Cheap round-trip flights

American Airlines Logo
5:57 pm - 11:26 pmSTL-GRK
5h 29m1 stop
American Airlines Logo
6:28 am - 11:42 amGRK-STL
5h 14m1 stop
$289American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
5:57 pm - 11:26 pmSTL-GRK
5h 29m1 stop
American Airlines Logo
10:39 am - 4:11 pmGRK-STL
5h 32m1 stop
$291American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
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
$351American Airlines
Find Deal
Thu, Sep 18 - Sun, Sep 21
American Airlines Logo
5:57 pm - 11:26 pmSTL-GRK
5h 29m1 stop
American Airlines Logo
6:28 am - 2:34 pmGRK-STL
8h 06m2 stops
$355American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
4:41 pm - 11:26 pmSTL-GRK
6h 45m2 stops
American Airlines Logo
5:20 am - 9:54 amGRK-STL
4h 34m1 stop
$356American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
4:41 pm - 11:26 pmSTL-GRK
6h 45m2 stops
American Airlines Logo
6:28 am - 2:34 pmGRK-STL
8h 06m2 stops
$421American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
11:14 am - 7:47 pmSTL-GRK
8h 33m2 stops
American Airlines Logo
6:28 am - 2:34 pmGRK-STL
8h 06m2 stops
$468American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
5:18 am - 9:38 amSTL-GRK
4h 20m1 stop
American Airlines Logo
4:32 pm - 11:48 pmGRK-STL
7h 16m2 stops
$480American Airlines
Find Deal
Thu, Sep 18 - Sun, Sep 21
American Airlines Logo
6:05 am - 4:02 pmSTL-GRK
9h 57m2 stops
American Airlines Logo
4:32 pm - 11:48 pmGRK-STL
7h 16m2 stops
$601American Airlines
Find Deal
Thu, Sep 18 - Sun, Sep 21
American Airlines Logo
5:17 am - 10:04 amSTL-GRK
4h 47m1 stop
American Airlines Logo
6:49 pm - 10:29 pmGRK-STL
3h 40m1 stop
$675American Airlines
Find Deal
Wed, Nov 26 - Sun, Nov 30

American Airlines flights from St. Louis to Killeen

Our best American Airlines deals on St. Louis to Killeen flight tickets
American Airlines
Dec 24
STL5:57 pmLambert-St Louis
5h 29m
1 stop
GRK11:26 pmKilleen Fort Hood Regional
Dec 31
GRK6:28 amKilleen Fort Hood Regional
5h 14m
1 stop
STL11:42 amLambert-St Louis
$289
Find similar
American Airlines
Dec 24
STL5:57 pmLambert-St Louis
5h 29m
1 stop
GRK11:26 pmKilleen Fort Hood Regional
Dec 31
GRK10:39 amKilleen Fort Hood Regional
5h 32m
1 stop
STL4:11 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
$351
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis 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 21, 2025.
Use the filters below to find and compare flights from St. Louis to Killeen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

5:57 pm-11:26 pm

1 stop5h 29m

Killeen Fort Hood Regional

Wed 12/31

6:28 am-11:42 am

1 stop5h 14m

$289

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

5:57 pm-11:26 pm

1 stop5h 29m

Killeen Fort Hood Regional

Wed 12/31

10:39 am-4:11 pm

1 stop5h 32m

$291

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Thu 9/18

5:18 am-9:38 am

1 stop4h 20m

Killeen Fort Hood Regional

Sun 9/21

4:32 pm-10:23 pm

1 stop5h 51m

$351

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

5:57 pm-11:26 pm

1 stop5h 29m

Killeen Fort Hood Regional

Wed 12/31

6:28 am-2:34 pm

2 stops8h 06m

$355

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

4:41 pm-11:26 pm

2 stops6h 45m

Killeen Fort Hood Regional

Wed 12/31

5:20 am-9:54 am

1 stop4h 34m

$356

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

4:41 pm-11:26 pm

2 stops6h 45m

Killeen Fort Hood Regional

Wed 12/31

6:28 am-2:34 pm

2 stops8h 06m

$421

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

11:14 am-7:47 pm

2 stops8h 33m

Killeen Fort Hood Regional

Wed 12/31

6:28 am-2:34 pm

2 stops8h 06m

$468

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Thu 9/18

5:18 am-9:38 am

1 stop4h 20m

Killeen Fort Hood Regional

Sun 9/21

4:32 pm-11:48 pm

2 stops7h 16m

$480

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Thu 9/18

6:05 am-4:02 pm

2 stops9h 57m

Killeen Fort Hood Regional

Sun 9/21

4:32 pm-11:48 pm

2 stops7h 16m

$601

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 11/26

5:17 am-10:04 am

1 stop4h 47m

Killeen Fort Hood Regional

Sun 11/30

6:49 pm-10:29 pm

1 stop3h 40m

$675

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Killeen from

How to get the cheapest flight ticket from St. Louis 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 St. Louis is on a Thursday. momondo users have found tickets for Thursday departures for as low as $232. 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 $690.

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 morning. momondo users have found flights departing from St. Louis to Killeen in the morning for as low as $367. 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 afternoon, with an average ticket price of $419. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from St. Louis to Killeen

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Killeen according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Killeen (STL to GRK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Killeen

Direct flights

None
There are no direct flights from St. Louis to Killeen. There are no popular flight routes from St. Louis to Killeen.
Search flight deals

  • How far is Lambert-St Louis to Killeen Fort Hood Regional by plane?

    Killeen Fort Hood Regional is 670.9 mi away from Lambert-St Louis. Flights usually cover this in 4h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Killeen Fort Hood Regional Airport?

    Prices for flights from Lambert-St Louis Airport to Killeen Fort Hood Regional Airport refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Killeen Fort Hood Regional Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport 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 Lambert-St Louis Airport to Killeen Fort Hood Regional Airport.

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

    The necessary travel and health documents for your Killeen Fort Hood Regional Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Killeen?

Best airlines flying from St. Louis to Killeen

Compare and see reviews for airlines that fly from St. Louis to Killeen with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $280Free 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 St. Louis to Killeen?

Finding the right flight to Killeen from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Killeen quick and easy, saving you time and money.

Can I find flights from St. Louis to Killeen with flexible booking policies on momondo?

momondo does allow users to show only those flights to Killeen from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Killeen?

momondo helps you find the best flight between St. Louis and Killeen by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of St. Louis to Killeen flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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