$310+ Cheap flights from Colorado to Killeen (GRK)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — GRK
Aug 4 — Aug 111
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Colorado to Killeen 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 Colorado to Killeen
Cheapest
Best
Last-minute
One-way
Cheapest flights from Colorado to KilleenExplore the most affordable flight options available from Colorado to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 5, 2026.
Explore the most affordable flight options available from Colorado to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 5, 2026.
This American Airlines deal was found by Cheapflights users on 7/1. 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 7/297:22 am
DEN
- GRK
1 stop4h 01m
American Airlines
Wed 8/512:37 pm
GRK
- DEN
1 stop3h 52m
American Airlines
Deal found 7/1![American Airlines logo]()
$495
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/47:20 am
DEN
- GRK
1 stop3h 47m
American Airlines
Wed 9/910:04 am
GRK
- DEN
1 stop6h 55m
American Airlines
Deal found 7/2![American Airlines logo]()
$508
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 11/512:45 pm
COS
- GRK
1 stop4h 33m
American Airlines
Sat 11/76:05 am
GRK
- COS
1 stop4h 49m
American Airlines
Deal found 7/2![American Airlines logo]()
$508
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 9/65:06 am
DEN
- GRK
1 stop6h 01m
American Airlines
Tue 9/1512:47 pm
GRK
- DEN
1 stop4h 12m
American Airlines
Deal found 7/2![American Airlines logo]()
$553
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/43:51 pm
COS
- GRK
1 stop4h 08m
American Airlines
Mon 9/75:00 am
GRK
- COS
1 stop5h 18m
American Airlines
Deal found 7/2![American Airlines logo]()
$553
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 9/66:27 pm
DEN
- GRK
1 stop4h 12m
American Airlines
Mon 9/144:09 pm
GRK
- DEN
1 stop4h 29m
American Airlines
Deal found 7/2![American Airlines logo]()
$594
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/712:39 pm
DEN
- GRK
1 stop5h 13m
American Airlines
Wed 9/1612:47 pm
GRK
- DEN
1 stop4h 12m
American Airlines
Deal found 7/2![American Airlines logo]()
$617
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 9/106:32 pm
DEN
- GRK
1 stop4h 01m
American Airlines
Sun 9/137:15 pm
GRK
- DEN
1 stop5h 36m
American Airlines
Deal found 7/2![American Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 7/95:35 am
COS
- GRK
1 stop5h 48m
American Airlines
Mon 7/133:08 pm
GRK
- COS
1 stop4h 26m
American Airlines
Deal found 7/2![American Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 9/63:15 pm
DEN
- GRK
1 stop4h 50m
American Airlines
Fri 9/1810:04 am
GRK
- DEN
1 stop5h 17m
American Airlines
Deal found 7/2![American Airlines logo]()
$651
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/712:39 pm
DEN
- GRK
1 stop5h 13m
American Airlines
Mon 9/1410:04 am
GRK
- DEN
1 stop5h 17m
American Airlines
Deal found 7/2![American Airlines logo]()
$658
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 9/101:17 pm
DEN
- GRK
1 stop4h 28m
American Airlines
Fri 9/1812:47 pm
GRK
- DEN
1 stop4h 12m
American Airlines
Deal found 7/2![American Airlines logo]()
$692
Best flights from Colorado to KilleenDiscover carefully curated flight deals from Colorado to Killeen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 5, 2026.
Discover carefully curated flight deals from Colorado to Killeen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 5, 2026.
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/47:20 am
DEN
- GRK
1 stop3h 47m
American Airlines
Wed 9/910:04 am
GRK
- DEN
1 stop6h 55m
American Airlines
Deal found 7/2![American Airlines logo]()
$508
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 11/512:45 pm
COS
- GRK
1 stop4h 33m
American Airlines
Sat 11/76:05 am
GRK
- COS
1 stop4h 49m
American Airlines
Deal found 7/2![American Airlines logo]()
$508
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/43:51 pm
COS
- GRK
1 stop4h 08m
American Airlines
Mon 9/75:00 am
GRK
- COS
1 stop5h 18m
American Airlines
Deal found 7/2![American Airlines logo]()
$553
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 9/63:15 pm
DEN
- GRK
1 stop4h 50m
American Airlines
Thu 9/177:15 pm
GRK
- DEN
1 stop5h 36m
American Airlines
Deal found 7/2![American Airlines logo]()
$594
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/85:03 am
DEN
- GRK
1 stop6h 04m
American Airlines
Mon 9/1410:04 am
GRK
- DEN
1 stop6h 55m
American Airlines
Deal found 7/2![American Airlines logo]()
$594
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/125:30 am
DEN
- GRK
1 stop5h 47m
American Airlines
Fri 9/1812:47 pm
GRK
- DEN
1 stop4h 12m
American Airlines
Deal found 7/2![American Airlines logo]()
$651
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/910:47 am
DEN
- GRK
1 stop3h 47m
American Airlines
Fri 9/1810:04 am
GRK
- DEN
1 stop5h 17m
American Airlines
Deal found 7/2![American Airlines logo]()
$651
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/712:39 pm
DEN
- GRK
1 stop5h 13m
American Airlines
Thu 9/175:00 am
GRK
- DEN
1 stop4h 10m
American Airlines
Deal found 7/2![American Airlines logo]()
$658
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/78:29 am
DEN
- GRK
2 stops26h 38m
American Airlines
Mon 9/1410:04 am
GRK
- DEN
1 stop5h 17m
American Airlines
Deal found 7/2![American Airlines logo]()
$775
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/48:29 am
DEN
- GRK
2 stops11h 30m
American Airlines
Mon 9/712:37 pm
GRK
- DEN
1 stop6h 00m
American Airlines
Deal found 7/2![American Airlines logo]()
$780
This American Airlines deal was found by Cheapflights users on 7/4. 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.
Thu 10/156:43 pm
DEN
- GRK
1 stop3h 53m
American Airlines
Tue 10/203:16 pm
GRK
- DEN
2 stops8h 42m
American Airlines
Deal found 7/4![American Airlines logo]()
$891
This American Airlines deal was found by Cheapflights users on 7/1. 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 7/296:10 pm
DEN
- GRK
1 stop4h 29m
American Airlines
Wed 8/53:05 pm
GRK
- DEN
2 stops7h 37m
American Airlines
Deal found 7/1![American Airlines logo]()
$897
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 10/16:32 pm
DEN
- GRK
1 stop4h 01m
American Airlines
Tue 10/63:16 pm
GRK
- DEN
2 stops7h 43m
American Airlines
Deal found 7/1![American Airlines logo]()
$932
Last-minute flights from Colorado to KilleenDiscover last-minute flight deals from Colorado to Killeen. Data last updated July 5, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Killeen. Data last updated July 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 7/95:35 am
COS
- GRK
1 stop5h 48m
American Airlines
Mon 7/133:08 pm
GRK
- COS
1 stop4h 26m
American Airlines
Deal found 7/2![American Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 7/233:11 pm
DEN
- GRK
1 stop6h 16m
American Airlines
Fri 7/247:24 pm
GRK
- DEN
1 stop13h 44m
American Airlines
Deal found 7/2![American Airlines logo]()
$973
This American Airlines deal was found by Cheapflights users on 7/1. 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 7/297:22 am
DEN
- GRK
1 stop4h 01m
American Airlines
Wed 8/512:37 pm
GRK
- DEN
1 stop3h 52m
American Airlines
Deal found 7/1![American Airlines logo]()
$495
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 8/139:01 am
DEN
- GRK
1 stop4h 34m
American Airlines
Mon 8/175:00 am
GRK
- DEN
1 stop4h 25m
American Airlines
Deal found 7/2![American Airlines logo]()
$553
One-way flights from Colorado to KilleenSearch for one-way flight options from Colorado to Killeen. Find affordable one-way fares based on user searches. Data last updated July 5, 2026.
Search for one-way flight options from Colorado to Killeen. Find affordable one-way fares based on user searches. Data last updated July 5, 2026.
This American Airlines deal was found by Cheapflights users on 7/1. 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 9/2312:37 pm
COS
- GRK
2 stops19h 41m
American Airlines
Deal found 7/1![American Airlines logo]()
$310
Find flight deals from Colorado to Killeen
Keep the following information in mind while searching for Colorado to Killeen flight deals. Data was last updated July 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $495 (American Airlines) |
One-way from | $310 (American Airlines) |
Popular in | March |
Cheapest in | July |
Average price | $296 |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado 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 5, 2026.
Use the filters below to find and compare flights from Colorado to Killeen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverKilleen
DEN - GRK
DENGRK
Denver Intl
Fri 9/4
7:20 am-12:07 pm
1 stop3h 47m
Killeen Fort Hood Regional
Wed 9/9
10:04 am-3:59 pm
1 stop6h 55m
$508
Colorado SpringsKilleen
COS - GRK
COSGRK
Colorado Springs
Thu 11/5
12:45 pm-6:18 pm
1 stop4h 33m
Killeen Fort Hood Regional
Sat 11/7
6:05 am-9:54 am
1 stop4h 49m
$508
Colorado SpringsKilleen
COS - GRK
COSGRK
Colorado Springs
Fri 9/4
3:51 pm-8:59 pm
1 stop4h 08m
Killeen Fort Hood Regional
Mon 9/7
5:00 am-9:18 am
1 stop5h 18m
$553
DenverKilleen
DEN - GRK
DENGRK
Denver Intl
Sun 9/6
3:15 pm-9:05 pm
1 stop4h 50m
Killeen Fort Hood Regional
Thu 9/17
7:15 pm-11:51 pm
1 stop5h 36m
$594
DenverKilleen
DEN - GRK
DENGRK
Denver Intl
Tue 9/8
5:03 am-12:07 pm
1 stop6h 04m
Killeen Fort Hood Regional
Mon 9/14
10:04 am-3:59 pm
1 stop6h 55m
$594
DenverKilleen
DEN - GRK
DENGRK
Denver Intl
Sat 9/12
5:30 am-12:17 pm
1 stop5h 47m
Killeen Fort Hood Regional
Fri 9/18
12:47 pm-3:59 pm
1 stop4h 12m
$651
Quickest round-trip
DenverKilleen
DEN - GRK
DENGRK
Denver Intl
Wed 9/9
10:47 am-3:34 pm
1 stop3h 47m
Killeen Fort Hood Regional
Fri 9/18
10:04 am-2:21 pm
1 stop5h 17m
$651
DenverKilleen
DEN - GRK
DENGRK
Denver Intl
Mon 9/7
12:39 pm-6:52 pm
1 stop5h 13m
Killeen Fort Hood Regional
Thu 9/17
5:00 am-8:10 am
1 stop4h 10m
$658
DenverKilleen
DEN - GRK
DENGRK
Denver Intl
Mon 9/7
8:29 am-12:07 pm
2 stops26h 38m
Killeen Fort Hood Regional
Mon 9/14
10:04 am-2:21 pm
1 stop5h 17m
$775
DenverKilleen
DEN - GRK
DENGRK
Denver Intl
Fri 9/4
8:29 am-8:59 pm
2 stops11h 30m
Killeen Fort Hood Regional
Mon 9/7
12:37 pm-5:37 pm
1 stop6h 00m
$780
Showing 1-10 of 14 resultsSorted by cheapest first
Best time to book a flight from Colorado to Killeen
Have a flexible travel schedule? Discover the best time to fly to Killeen from Colorado with our price prediction graph.
DEN-GRK
COS-GRK
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 Colorado to Killeen
USCO-GRK
DEN-GRK
COS-GRK
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 Colorado 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 locationsTemple
Copperas Cove
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
Alternative routes for Colorado to Killeen
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Killeen by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Killeen by cabin class
Find flights from Colorado to Killeen, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Killeen flights
Browse other Colorado and Killeen flight options. Last updated on July 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Colorado to Killeen flights
Consider these flights traveling from Colorado to Killeen.
Top airline flying from Colorado to Killeen
Discover the top airline that operate flights from Colorado 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 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$336 | Average$831 | FlexibilityNo cancel fee | On-time71% |