$389+ Cheap flights from Killeen (GRK) to Houston
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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — HOU
Aug 19 — Aug 261
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Killeen to Houston with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Killeen to Houston
Cheapest
Best
Last-minute
One-way
Cheapest flights from Killeen to HoustonExplore the most affordable flight options available from Killeen to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
Explore the most affordable flight options available from Killeen to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/183:05 pm
GRK
- IAH
1 stop3h 39m
American Airlines
Tue 8/2511:28 am
IAH
- GRK
1 stop3h 07m
American Airlines
Deal found 7/19![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/185:00 am
GRK
- HOU
1 stop4h 03m
American Airlines
Tue 8/253:57 pm
HOU
- GRK
1 stop5h 02m
American Airlines
Deal found 7/19![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/1712:37 pm
GRK
- IAH
1 stop5h 27m
American Airlines
Mon 8/242:09 pm
IAH
- GRK
1 stop4h 43m
American Airlines
Deal found 7/19![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/175:00 am
GRK
- HOU
1 stop4h 02m
American Airlines
Mon 8/245:41 am
HOU
- GRK
1 stop3h 48m
American Airlines
Deal found 7/19![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 8/285:00 am
GRK
- IAH
1 stop3h 33m
American Airlines
Sun 8/3011:28 am
IAH
- GRK
1 stop3h 07m
American Airlines
Deal found 7/15![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 7/18. 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.
Sat 8/159:59 am
GRK
- HOU
1 stop5h 27m
American Airlines
Sat 8/229:37 am
HOU
- GRK
1 stop4h 58m
American Airlines
Deal found 7/18![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 7/16. 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.
Fri 7/245:00 am
GRK
- IAH
1 stop3h 32m
American Airlines
Mon 7/277:49 pm
IAH
- GRK
1 stop3h 50m
American Airlines
Deal found 7/16![American Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 7/16. 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.
Fri 7/247:24 pm
GRK
- HOU
1 stop4h 32m
American Airlines
Mon 7/276:03 am
HOU
- GRK
1 stop3h 33m
American Airlines
Deal found 7/16![American Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 8/145:00 am
GRK
- IAH
1 stop5h 40m
American Airlines
Fri 8/144:21 pm
IAH
- GRK
1 stop4h 38m
American Airlines
Deal found 7/15![American Airlines logo]()
$845
Best flights from Killeen to HoustonDiscover carefully curated flight deals from Killeen to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
Discover carefully curated flight deals from Killeen to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/183:05 pm
GRK
- IAH
1 stop3h 39m
American Airlines
Tue 8/2511:28 am
IAH
- GRK
1 stop3h 07m
American Airlines
Deal found 7/19![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/185:00 am
GRK
- HOU
1 stop4h 03m
American Airlines
Tue 8/253:57 pm
HOU
- GRK
1 stop5h 02m
American Airlines
Deal found 7/19![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/1712:37 pm
GRK
- IAH
1 stop5h 27m
American Airlines
Mon 8/242:09 pm
IAH
- GRK
1 stop4h 43m
American Airlines
Deal found 7/19![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/175:00 am
GRK
- HOU
1 stop4h 02m
American Airlines
Mon 8/245:41 am
HOU
- GRK
1 stop3h 48m
American Airlines
Deal found 7/19![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 8/2812:37 pm
GRK
- IAH
1 stop6h 07m
American Airlines
Sun 8/3011:28 am
IAH
- GRK
1 stop3h 07m
American Airlines
Deal found 7/15![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 7/18. 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.
Sat 8/155:00 am
GRK
- IAH
1 stop4h 33m
American Airlines
Sat 8/225:00 am
IAH
- GRK
1 stop4h 29m
American Airlines
Deal found 7/18![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 8/2812:37 pm
GRK
- HOU
1 stop5h 07m
American Airlines
Sun 8/308:14 pm
HOU
- GRK
1 stop3h 25m
American Airlines
Deal found 7/15![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 7/18. 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.
Sat 8/159:59 am
GRK
- HOU
1 stop5h 27m
American Airlines
Sat 8/229:37 am
HOU
- GRK
1 stop4h 58m
American Airlines
Deal found 7/18![American Airlines logo]()
$419
Last-minute flights from Killeen to HoustonDiscover last-minute flight deals from Killeen to Houston. Data last updated July 20, 2026 and is based on user searches.
Discover last-minute flight deals from Killeen to Houston. Data last updated July 20, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/16. 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.
Fri 7/245:00 am
GRK
- IAH
1 stop3h 32m
American Airlines
Mon 7/277:49 pm
IAH
- GRK
1 stop3h 50m
American Airlines
Deal found 7/16![American Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 7/16. 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.
Fri 7/247:24 pm
GRK
- HOU
1 stop4h 32m
American Airlines
Mon 7/276:03 am
HOU
- GRK
1 stop3h 33m
American Airlines
Deal found 7/16![American Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 8/145:00 am
GRK
- IAH
1 stop5h 40m
American Airlines
Fri 8/144:21 pm
IAH
- GRK
1 stop4h 38m
American Airlines
Deal found 7/15![American Airlines logo]()
$845
This American Airlines deal was found by Cheapflights users on 7/18. 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.
Sat 8/159:59 am
GRK
- HOU
1 stop5h 27m
American Airlines
Sat 8/229:37 am
HOU
- GRK
1 stop4h 58m
American Airlines
Deal found 7/18![American Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/1712:37 pm
GRK
- IAH
1 stop5h 27m
American Airlines
Mon 8/242:09 pm
IAH
- GRK
1 stop4h 43m
American Airlines
Deal found 7/19![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/175:00 am
GRK
- HOU
1 stop4h 02m
American Airlines
Mon 8/245:41 am
HOU
- GRK
1 stop3h 48m
American Airlines
Deal found 7/19![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/183:05 pm
GRK
- IAH
1 stop3h 39m
American Airlines
Tue 8/2511:28 am
IAH
- GRK
1 stop3h 07m
American Airlines
Deal found 7/19![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/185:00 am
GRK
- HOU
1 stop4h 03m
American Airlines
Tue 8/253:57 pm
HOU
- GRK
1 stop5h 02m
American Airlines
Deal found 7/19![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 8/285:00 am
GRK
- IAH
1 stop3h 33m
American Airlines
Sun 8/3011:28 am
IAH
- GRK
1 stop3h 07m
American Airlines
Deal found 7/15![American Airlines logo]()
$419
One-way flights from Killeen to HoustonSearch for one-way flight options from Killeen to Houston. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
Search for one-way flight options from Killeen to Houston. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Sat 7/2510:06 am
GRK
- IAH
1 stop3h 02m
American Airlines
Deal found 7/19![American Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Sat 7/255:00 am
GRK
- HOU
1 stop4h 48m
American Airlines
Deal found 7/19![American Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2510:06 am
GRK
- IAH
3 stops36h 34m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$1,180
Find flight deals from Killeen to Houston
Discover tips and strategies to find the most affordable flight options for your journey from Killeen (GRK) to Houston (HO1). 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 20, 2026.
Round-trip from | $389 (American Airlines) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Killeen to Houston 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 20, 2026.
Use the filters below to find and compare flights from Killeen to Houston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
KilleenHouston
GRK - IAH
GRKIAH
Killeen Fort Hood Regional
Tue 8/18
3:05 pm-6:44 pm
1 stop3h 39m
Houston George Bush Intcntl
Tue 8/25
11:28 am-2:35 pm
1 stop3h 07m
$389
KilleenHouston
GRK - HOU
GRKHOU
Killeen Fort Hood Regional
Tue 8/18
5:00 am-9:03 am
1 stop4h 03m
Houston Hobby
Tue 8/25
3:57 pm-8:59 pm
1 stop5h 02m
$389
KilleenHouston
GRK - IAH
GRKIAH
Killeen Fort Hood Regional
Mon 8/17
12:37 pm-6:04 pm
1 stop5h 27m
Houston George Bush Intcntl
Mon 8/24
2:09 pm-6:52 pm
1 stop4h 43m
$418
KilleenHouston
GRK - HOU
GRKHOU
Killeen Fort Hood Regional
Mon 8/17
5:00 am-9:02 am
1 stop4h 02m
Houston Hobby
Mon 8/24
5:41 am-9:29 am
1 stop3h 48m
$418
KilleenHouston
GRK - IAH
GRKIAH
Killeen Fort Hood Regional
Fri 8/28
12:37 pm-6:44 pm
1 stop6h 07m
Houston George Bush Intcntl
Sun 8/30
11:28 am-2:35 pm
1 stop3h 07m
$419
KilleenHouston
GRK - IAH
GRKIAH
Killeen Fort Hood Regional
Sat 8/15
5:00 am-9:33 am
1 stop4h 33m
Houston George Bush Intcntl
Sat 8/22
5:00 am-9:29 am
1 stop4h 29m
$419
KilleenHouston
GRK - HOU
GRKHOU
Killeen Fort Hood Regional
Fri 8/28
12:37 pm-5:44 pm
1 stop5h 07m
Houston Hobby
Sun 8/30
8:14 pm-11:39 pm
1 stop3h 25m
$419
KilleenHouston
GRK - HOU
GRKHOU
Killeen Fort Hood Regional
Sat 8/15
9:59 am-3:26 pm
1 stop5h 27m
Houston Hobby
Sat 8/22
9:37 am-2:35 pm
1 stop4h 58m
$419
Cheapest one-way
Quickest one-way
KilleenHouston
GRK - IAH
GRKIAH
Killeen Fort Hood Regional
Sat 7/25
10:06 am-1:08 pm
1 stop3h 02m
$398
KilleenHouston
GRK - HOU
GRKHOU
Killeen Fort Hood Regional
Sat 7/25
5:00 am-9:48 am
1 stop4h 48m
$398
Showing 1-10 of 11 resultsSorted by cheapest first
Best time to book a flight from Killeen to Houston
Have a flexible travel schedule? Discover the best time to fly to Houston from Killeen with our price prediction graph.
GRK-HO1
GRK-IAH
GRK-HOU
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 Killeen to Houston
GRK-HO1
GRK-IAH
GRK-HOU
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Killeen to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations