$423 Cheap American Airlines flights from St. Louis to Killeen (STL to GRK)

Find The Best Day To Fly from St. Louis to Killeen

Amazing American Airlines STL to GRK Flight Deals

The cheapest flights to Killeen-Fort Hood Regional found within the past 7 days were $293 round trip and $423 one way. Prices and availability subject to change. Additional terms may apply.

GRK From STL Economy Coach Packages on Similar Airlines

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Frequently asked questions

Can I catch a flight from Lambert-St. Louis Intl. Airport (STL) to Killeen-Fort Hood Regional Airport (GRK) right now?
For info on any current GRK quarantine requirements and travel advice, go to the Covid-19 Travel Advisor. Check before you arrange your flight, so you don't get caught up.
What terminal is American Airlines at St. Louis Lambert International Airport?
Once you've received the boarding pass for your flight from St. Louis Lambert International Airport to Killeen-Fort Hood Regional Airport, you should be able to identify exactly which terminals American Airlines flies into and out of. If not, contact your carrier or do some online research for those details.
Are there American Airlines non-stop flights from STL to GRK?
There aren't any direct flights with American Airlines from Lambert Field to Killeen-Fort Hood Regional Airport (GRK). You will have a stopover, so take the opportunity to stretch out your legs before your next flight.
How long is an American Airlines flight from STL to GRK?
From the moment your American Airlines aircraft pushes back from the gate at STL to the instant it taxis into Killeen-Fort Hood Regional Airport (GRK), you'll be in your seat for an average of 3 hours. With such a quick flight time, it's the perfect spur-of-the-moment vacation.
How many direct and indirect flights does American Airlines fly from STL to GRK?
If you'd like to book a trip from STL to GRK, you can pick from 5 American Airlines flights daily.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Killeen-Fort Hood Regional Airport (GRK), please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best American Airlines flight from St. Louis STL to Killeen GRK 

To find the best deals on flights to St. Louis from Killeen with American Airlines, just enter your travel dates, filter by American Airlines, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from St. Louis STL to Killeen GRK with American Airlines 

If you’re planning a round trip, booking return flights with American Airlines is usually the most cost-effective option. With airfares ranging from $293 to $507, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way American Airlines flights from St. Louis STL to Killeen GRK 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way American Airlines flight from St. Louis to Killeen costs from $423. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Killeen GRK from  St. Louis STL with American Airlines 

To find a cheap American Airlines flight from St. Louis STL to Killeen GRK, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on American Airlines flights from St. Louis STL to Killeen GRK 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as March, or if you book a flight with a stopover. 

 

Find nonstop flights from St. Louis STL to Killeen GRK with American Airlines 

If you’re keen to be on Killeen soil fast, don’t waste time with a stopover—filter your search results to show direct American Airlines flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for American Airlines flights from St. Louis STL to Killeen GRK 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Killeen GRK from  St. Louis STL with American Airlines on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

American Airlines Airports
Hop on a(n) American Airlines flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
DFWUSADallas-Fort Worth Intl.599
CLTUSACharlotte-Douglas Intl.536
ORDUSAO'Hare Intl.317
PHLUSAPhiladelphia Intl.247
MIAUSAMiami Intl.193
DCAUSARonald Reagan Washington National152
PHXUSASky Harbor Intl.141
LAXUSALos Angeles Intl.81
LGAUSALaGuardia72
BOSUSALogan Intl.57

Travelers ❤️ these 🏨 after their flight to Killeen

PCS Home Away From Home - 5 minutes to Fort Hood

PCS Home Away From Home - 5 minutes to Fort Hood

Killeen TX
This vacation home features laundry facilities.
10/10 Exceptional! (6 reviews)
Perfect place to stay. Close to everything. House was clean and very welcoming. I would definitely stay here again. Tara was very accommodating.

Reviewed on Nov 16, 2025

PCS Home Away From Home - 5 minutes to Fort Hood
Charming 4-bedroom bungalow with AC and WiFi in lovely Killeen

Charming 4-bedroom bungalow with AC and WiFi in lovely Killeen

2 out of 5
Killeen TX
This vacation home features laundry facilities.
9.6/10 Exceptional! (5 reviews)
Very nice place!

Reviewed on Feb 13, 2026

Charming 4-bedroom bungalow with AC and WiFi in lovely Killeen
Beautiful 3 BR/ 2.5 BA with no backyard neighbors

Beautiful 3 BR/ 2.5 BA with no backyard neighbors

Killeen TX
This vacation home featured laundry facilities and barbecue grills.
Beautiful 3 BR/ 2.5 BA with no backyard neighbors
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.