$175+ Cheap flights from Killeen (GRK) to Puerto Rico
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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJU
Aug 19 — Aug 261
Round-trip
1 adult, Economy
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Find cheap flights from Killeen to Puerto Rico with Cheapflights
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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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Cheapest flights from Killeen to Puerto RicoExplore the most affordable flight options available from Killeen to Puerto Rico. 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 Puerto Rico. 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 7/18. 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.
Fri 8/285:00 am
GRK
- SJU
2 stops12h 30m
American Airlines
Tue 9/16:00 am
SJU
- GRK
2 stops13h 52m
American Airlines
Deal found 7/18![American Airlines logo]()
$350
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.
Wed 9/27:00 am
GRK
- SJU
2 stops10h 33m
American Airlines
Wed 9/96:00 am
SJU
- GRK
2 stops16h 17m
American Airlines
Deal found 7/15![American Airlines logo]()
$355
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 10/1012:28 pm
GRK
- SJU
1 stop9h 52m
American Airlines
Sat 10/174:17 pm
SJU
- GRK
1 stop18h 06m
American Airlines
Deal found 7/19![American Airlines logo]()
$415
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.
Tue 8/257:00 am
GRK
- SJU
2 stops13h 55m
American Airlines
Mon 8/317:24 pm
SJU
- GRK
2 stops15h 05m
American Airlines
Deal found 7/16![American Airlines logo]()
$425
This American Airlines deal was found by Cheapflights users on 7/20. 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 8/307:00 am
GRK
- SJU
2 stops8h 57m
American Airlines
Tue 9/87:24 pm
SJU
- GRK
2 stops21h 10m
American Airlines
Deal found 7/20![American Airlines logo]()
$452
This American Airlines deal was found by Cheapflights users on 7/20. 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 9/29:59 am
GRK
- SJU
2 stops10h 56m
American Airlines
Tue 9/87:24 pm
SJU
- GRK
2 stops21h 10m
American Airlines
Deal found 7/20![American Airlines logo]()
$457
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.
Tue 9/15:00 am
GRK
- SJU
1 stop8h 54m
American Airlines
Tue 9/86:00 am
SJU
- GRK
2 stops13h 52m
American Airlines
Deal found 7/16![American Airlines logo]()
$468
This American Airlines deal was found by Cheapflights users on 7/20. 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 9/59:59 am
GRK
- SJU
2 stops22h 44m
American Airlines
Thu 9/106:00 am
SJU
- GRK
2 stops9h 34m
American Airlines
Deal found 7/20![American Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 7/20. 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 9/27:00 am
GRK
- SJU
2 stops25h 43m
American Airlines
Sun 9/63:28 pm
SJU
- GRK
2 stops21h 39m
American Airlines
Deal found 7/20![American Airlines logo]()
$506
Best flights from Killeen to Puerto RicoDiscover carefully curated flight deals from Killeen to Puerto Rico 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 Puerto Rico 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 7/18. 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.
Fri 8/285:00 am
GRK
- SJU
2 stops12h 30m
American Airlines
Tue 9/16:00 am
SJU
- GRK
2 stops13h 52m
American Airlines
Deal found 7/18![American Airlines logo]()
$350
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 10/105:00 am
GRK
- SJU
2 stops16h 22m
American Airlines
Sat 10/174:17 pm
SJU
- GRK
1 stop18h 06m
American Airlines
Deal found 7/19![American Airlines logo]()
$415
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.
Tue 9/15:00 am
GRK
- SJU
1 stop8h 54m
American Airlines
Tue 9/86:00 am
SJU
- GRK
2 stops13h 52m
American Airlines
Deal found 7/16![American Airlines logo]()
$468
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.
Wed 9/27:00 am
GRK
- SJU
1 stop6h 54m
American Airlines
Wed 9/94:38 pm
SJU
- GRK
2 stops17h 40m
American Airlines
Deal found 7/15![American Airlines logo]()
$473
This American Airlines deal was found by Cheapflights users on 7/20. 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 9/53:05 pm
GRK
- SJU
2 stops17h 38m
American Airlines
Wed 9/96:00 am
SJU
- GRK
2 stops13h 45m
American Airlines
Deal found 7/20![American Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 7/20. 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 8/307:00 am
GRK
- SJU
2 stops8h 57m
American Airlines
Sun 9/63:28 pm
SJU
- GRK
2 stops21h 39m
American Airlines
Deal found 7/20![American Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 7/20. 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 8/3112:37 pm
GRK
- SJU
2 stops20h 06m
American Airlines
Sun 9/63:28 pm
SJU
- GRK
2 stops21h 39m
American Airlines
Deal found 7/20![American Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 7/20. 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 9/53:05 pm
GRK
- SJU
2 stops17h 38m
American Airlines
Sat 9/124:38 pm
SJU
- GRK
2 stops17h 40m
American Airlines
Deal found 7/20![American Airlines logo]()
$501
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.
Thu 8/137:00 am
GRK
- SJU
2 stops13h 55m
American Airlines
Mon 8/176:00 am
SJU
- GRK
2 stops15h 59m
American Airlines
Deal found 7/16![American Airlines logo]()
$623
Last-minute flights from Killeen to Puerto RicoDiscover last-minute flight deals from Killeen to Puerto Rico. Data last updated July 20, 2026 and is based on user searches.
Discover last-minute flight deals from Killeen to Puerto Rico. Data last updated July 20, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/17. 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 7/216:30 am
GRK
- SJU
2 stops14h 29m
American Airlines
Thu 7/235:45 am
SJU
- GRK
1 stop9h 53m
American Airlines
Deal found 7/17![American Airlines logo]()
$724
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.
Wed 7/225:00 am
GRK
- SJU
2 stops15h 59m
American Airlines
Mon 8/106:00 am
SJU
- GRK
2 stops15h 59m
American Airlines
Deal found 7/19![American Airlines logo]()
$729
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.
Fri 7/246:30 am
GRK
- SJU
2 stops14h 29m
American Airlines
Sun 8/97:24 pm
SJU
- GRK
2 stops15h 05m
American Airlines
Deal found 7/19![American Airlines logo]()
$829
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.
Fri 7/315:00 am
GRK
- SJU
2 stops12h 24m
American Airlines
Tue 8/46:00 am
SJU
- GRK
2 stops13h 54m
American Airlines
Deal found 7/19![American Airlines logo]()
$786
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.
Mon 8/35:00 am
GRK
- SJU
2 stops15h 59m
American Airlines
Mon 8/107:24 pm
SJU
- GRK
2 stops15h 05m
American Airlines
Deal found 7/16![American Airlines logo]()
$721
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.
Thu 8/137:00 am
GRK
- SJU
2 stops13h 55m
American Airlines
Mon 8/176:00 am
SJU
- GRK
2 stops15h 59m
American Airlines
Deal found 7/16![American Airlines logo]()
$623
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.
Tue 8/257:00 am
GRK
- SJU
2 stops13h 55m
American Airlines
Mon 8/317:24 pm
SJU
- GRK
2 stops15h 05m
American Airlines
Deal found 7/16![American Airlines logo]()
$425
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.
Fri 8/285:00 am
GRK
- SJU
2 stops12h 30m
American Airlines
Tue 9/16:00 am
SJU
- GRK
2 stops13h 52m
American Airlines
Deal found 7/18![American Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 7/20. 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 8/307:00 am
GRK
- SJU
2 stops8h 57m
American Airlines
Tue 9/87:24 pm
SJU
- GRK
2 stops21h 10m
American Airlines
Deal found 7/20![American Airlines logo]()
$452
This American Airlines deal was found by Cheapflights users on 7/20. 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 8/307:00 am
GRK
- SJU
2 stops8h 57m
American Airlines
Sun 9/63:28 pm
SJU
- GRK
2 stops21h 39m
American Airlines
Deal found 7/20![American Airlines logo]()
$501
One-way flights from Killeen to Puerto RicoSearch for one-way flight options from Killeen to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
Search for one-way flight options from Killeen to Puerto Rico. 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.
Sun 8/95:00 am
GRK
- SJU
2 stops15h 55m
American Airlines
Deal found 7/19![American Airlines logo]()
$175
This American Airlines deal was found by Cheapflights users on 7/20. 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 7/2712:42 pm
GRK
- SJU
1 stop14h 57m
American Airlines
Deal found 7/20![American Airlines logo]()
$297
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.
Sat 7/257:53 pm
GRK
- SJU
1 stop7h 46m
American Airlines
Deal found 7/16![American Airlines logo]()
$356
Find flight deals from Killeen to Puerto Rico
Keep the following information in mind while searching for Killeen to Puerto Rico flight deals. Data was last updated July 20, 2026.
Round-trip from | $350 (American Airlines) |
|---|---|
One-way from | $175 (American Airlines) |
Popular in | January |
Cheapest in | September |
Average price | $786 |
Cheapflights Fare Finder
Customize your flight search to find flights from Killeen to Puerto Rico 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 Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Fri 8/28
5:00 am-6:30 pm
2 stops12h 30m
San Juan Luis Munoz Marin Intl
Tue 9/1
6:00 am-6:52 pm
2 stops13h 52m
$350
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Sat 10/10
5:00 am-10:22 pm
2 stops16h 22m
San Juan Luis Munoz Marin Intl
Sat 10/17
4:17 pm-9:23 am
1 stop18h 06m
$415
Quickest round-trip
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Tue 9/1
5:00 am-2:54 pm
1 stop8h 54m
San Juan Luis Munoz Marin Intl
Tue 9/8
6:00 am-6:52 pm
2 stops13h 52m
$468
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Wed 9/2
7:00 am-2:54 pm
1 stop6h 54m
San Juan Luis Munoz Marin Intl
Wed 9/9
4:38 pm-9:18 am
2 stops17h 40m
$473
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Sat 9/5
3:05 pm-9:43 am
2 stops17h 38m
San Juan Luis Munoz Marin Intl
Wed 9/9
6:00 am-6:45 pm
2 stops13h 45m
$501
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Sun 8/30
7:00 am-4:57 pm
2 stops8h 57m
San Juan Luis Munoz Marin Intl
Sun 9/6
3:28 pm-12:07 pm
2 stops21h 39m
$501
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Mon 8/31
12:37 pm-9:43 am
2 stops20h 06m
San Juan Luis Munoz Marin Intl
Sun 9/6
3:28 pm-12:07 pm
2 stops21h 39m
$501
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Sat 9/5
3:05 pm-9:43 am
2 stops17h 38m
San Juan Luis Munoz Marin Intl
Sat 9/12
4:38 pm-9:18 am
2 stops17h 40m
$501
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Thu 8/13
7:00 am-9:55 pm
2 stops13h 55m
San Juan Luis Munoz Marin Intl
Mon 8/17
6:00 am-8:59 pm
2 stops15h 59m
$623
Cheapest one-way
KilleenSan Juan
GRK - SJU
GRKSJU
Killeen Fort Hood Regional
Sun 8/9
5:00 am-9:55 pm
2 stops15h 55m
$175
Showing 1-10 of 12 resultsSorted by cheapest first
Best time to book a flight from Killeen to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Killeen with our price prediction graph.
GRK-SJU
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 Puerto Rico
GRK-PR0
GRK-SJU
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated July 20, 2026.
Get a feel of what it's like to fly with American Airlines from Killeen to Puerto Rico by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.1
Food
6.4
Entertainment
6.8
Crew
7.9
Comfort
7.2
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Overall
7.1
Food
6.4
Entertainment
6.8
Crew
7.9
Comfort
7.2
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Related info for your journey
Find useful and relevant information for your journey from Killeen to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Killeen to Puerto Rico
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Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Killeen to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Killeen and Puerto Rico flights
Browse other Killeen and Puerto Rico flight options. Last updated on July 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Killeen to Puerto Rico flights
Consider these flights traveling from Killeen to Puerto Rico.
Top airline flying from Killeen to Puerto Rico
Discover the top airline that operate flights from Killeen to Puerto Rico. 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 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$483 | Average$692 | FlexibilityNo cancel fee | On-time71% |