Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from St. Louis to Killeen from $332

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Killeen departing on 12/13. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Killeen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:41 am - 3:56 pm
STL
-
GRK
4h 15m1 stop
American Airlines Logo
11:57 am - 5:07 pm
GRK
-
STL
5h 10m1 stop
$352American Airlines
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
11:41 am - 3:56 pm
STL
-
GRK
4h 15m1 stop
American Airlines Logo
11:57 am - 5:07 pm
GRK
-
STL
5h 10m1 stop
$407American Airlines
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
11:41 am - 3:56 pm
STL
-
GRK
4h 15m1 stop
American Airlines Logo
6:00 am - 4:23 pm
GRK
-
STL
10h 23m2 stops
$495American Airlines
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
6:00 am - 3:56 pm
STL
-
GRK
9h 56m2 stops
American Airlines Logo
7:11 am - 4:23 pm
GRK
-
STL
9h 12m2 stops
$601American Airlines
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
6:00 am - 3:56 pm
STL
-
GRK
9h 56m2 stops
American Airlines Logo
6:00 am - 4:23 pm
GRK
-
STL
10h 23m2 stops
$642American Airlines
Wed, Dec 24 - Wed, Dec 31

American Airlines flights from St. Louis to Killeen

Our best American Airlines deals on St. Louis to Killeen flight tickets
American Airlines
Dec 24
STL11:41 amLambert-St Louis
4h 15m
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
$352
Find similar
American Airlines
Dec 24
STL11:41 amLambert-St Louis
4h 15m
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
$407
Find similar
American Airlines
Dec 24
STL11:41 amLambert-St Louis
4h 15m
1 stop
GRK3:56 pmKilleen Fort Hood Regional
Dec 31
GRK6:00 amKilleen Fort Hood Regional
10h 23m
2 stops
STL4:23 pmLambert-St Louis
$495
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 December 8, 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

11:41 am-3:56 pm

1 stop4h 15m

Killeen Fort Hood Regional

Wed 12/31

11:57 am-5:07 pm

1 stop5h 10m

$352

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

11:41 am-3:56 pm

1 stop4h 15m

Killeen Fort Hood Regional

Wed 12/31

11:57 am-5:07 pm

1 stop5h 10m

$407

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Wed 12/24

11:41 am-3:56 pm

1 stop4h 15m

Killeen Fort Hood Regional

Wed 12/31

6:00 am-4:23 pm

2 stops10h 23m

$495

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

7:11 am-4:23 pm

2 stops9h 12m

$601

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-4:23 pm

2 stops10h 23m

$642

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Sat 12/13

3:59 pm-10:18 pm

1 stop6h 19m

$332

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Sat 12/13

1:59 pm-10:18 pm

2 stops8h 19m

$337

St. LouisKilleen

STL - GRK

STLGRK

Lambert-St Louis

Thu 12/25

7:00 am-10:29 pm

2 stops15h 29m

$662

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

Fastest flight time

4h 15m

Direct flights

None
The fastest flight from St. Louis to Killeen takes 4h 15m
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 15m, 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?

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.

An easier way to manage your Killeen trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 1/7
Wed 1/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States