$291+ Cheap flights from St. Louis to Killeen (STL - GRK)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — GRK
Aug 3 — Aug 101
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Killeen
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Killeen (GRK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.
Round-trip from | $291 (American Airlines) |
|---|
Find flight deals from St. Louis to Killeen
Cheapest flights from St. Louis to KilleenExplore the most affordable flight options available from St. Louis to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.
Explore the most affordable flight options available from St. Louis to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:57 pmSTL - GRK
1 stop5h 29mAmerican Airlines
Wed 12/316:28 amGRK - STL
1 stop5h 14mAmerican Airlines
Deal found 7/27![American Airlines logo]()
$291
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from St. Louis to Killeen that are best for you.
Fly from
St. Louis
Fly to
Killeen
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
$291
Best time to book a flight from St. Louis to Killeen
Have a flexible travel schedule? Discover the best time to fly to Killeen from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Killeen
What is the cheapest month to book a flight from St. Louis to Killeen?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Killeen (average of $316). Flying from St. Louis to Killeen in December is currently the most expensive (average of $468). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Killeen
Get insights into the airlines that provide service to Killeen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Killeen. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown American Airlines from St. Louis to Killeen. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.2
Entertainment
6.9
Crew
8.0
Food
6.5
Overall
7.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2025
PIT - DFW
Comfort
7.2
Entertainment
6.9
Crew
8.0
Food
6.5
Overall
7.2
Boarding
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2025
PIT - DFW
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Killeen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Killeen?
Book flights to Killeen if you plan to visit one of these locationsCopperas Cove
Temple
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Alternative routes for St. Louis to Killeen
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from St. Louis to Killeen
Discover the top airline that operate flights from St. Louis to Killeen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$240 | Average$472 | FlexibilityNo cancel fee | On-time71% |