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Puerto Rico

$174+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJU
Apr 19 — Apr 261
Sun 4/19
Sun 4/26
1 adult, Economy
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Cheap flight deals from Killeen to Puerto Rico

Cheapest flights from Killeen to Puerto Rico
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 March 20, 2026.

This American Airlines deal was found by Cheapflights users on 3/19. 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 4/251:08 pm
GRK
-
SJU
1 stop8h 54m
American Airlines
Fri 5/16:45 am
SJU
-
GRK
1 stop16h 07m
American Airlines
Deal found 3/19$358
This American Airlines deal was found by Cheapflights users on 3/17. 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.
Sun 5/37:09 pm
GRK
-
SJU
1 stop8h 23m
American Airlines
Sun 5/1011:59 pm
SJU
-
GRK
1 stop10h 36m
American Airlines
Deal found 3/17$384
This American Airlines deal was found by Cheapflights users on 3/18. 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.
Tue 4/213:54 pm
GRK
-
SJU
2 stops16h 19m
American Airlines
Mon 4/2711:59 pm
SJU
-
GRK
1 stop10h 36m
American Airlines
Deal found 3/18$490
This American Airlines deal was found by Cheapflights users on 3/18. 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.
Mon 6/17:21 pm
GRK
-
SJU
1 stop8h 04m
American Airlines
Mon 6/1512:44 am
SJU
-
GRK
1 stop14h 53m
American Airlines
Deal found 3/18$503
This American Airlines deal was found by Cheapflights users on 3/18. 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.
Tue 6/27:21 pm
GRK
-
SJU
1 stop8h 04m
American Airlines
Mon 6/1512:44 am
SJU
-
GRK
1 stop9h 50m
American Airlines
Deal found 3/18$533

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 March 20, 2026.

Round-trip from

$358
(American Airlines)

One-way from

$174
(American Airlines)

Popular in

January

Cheapest in

September

Average price

$514
From Killeen Fort Hood Regional to Puerto Rico
Search Deals
One-way flight from Killeen Fort Hood Regional to Puerto Rico
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($141 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
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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 March 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

Price

Cheapest round-trip

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sat 4/25

1:08 pm-4:32 am

1 stop14h 24m

San Juan Luis Munoz Marin Intl

Fri 5/1

10:03 am-9:52 pm

2 stops12h 49m

$424

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Tue 4/21

11:58 am-11:02 pm

1 stop10h 04m

San Juan Luis Munoz Marin Intl

Mon 4/27

11:59 pm-9:35 am

1 stop10h 36m

$530
Quickest round-trip

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Tue 6/2

7:21 pm-4:25 am

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Tue 6/16

6:00 am-2:37 pm

2 stops9h 37m

$596

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Fri 6/26

7:21 pm-4:25 am

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Mon 6/29

10:29 am-10:44 pm

2 stops13h 15m

$736

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sun 5/3

5:00 am-6:10 pm

2 stops12h 10m

San Juan Luis Munoz Marin Intl

Sun 5/10

5:45 am-3:24 pm

2 stops10h 39m

$782
Cheapest one-way

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sun 8/30

7:22 pm-12:45 pm

2 stops16h 23m

$174

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Fri 7/17

7:21 pm-4:39 am

1 stop8h 18m

$285
Quickest one-way

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sun 6/14

7:21 pm-4:25 am

1 stop8h 04m

$348

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sat 4/4

6:33 pm-9:00 am

2 stops13h 27m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Sorted 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.
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

What is the cheapest month to book a flight from Killeen to Puerto Rico?

Currently, January is the cheapest month in which you can book a flight from Killeen to Puerto Rico (average of $152). Flying from Killeen to Puerto Rico in August is currently the most expensive (average of $256). 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 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 March 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.
American Airlines
7.1
Good
11,480 reviews

Comfort

7.2

Boarding

7.5

Entertainment

6.9

Food

6.4

Crew

7.9

Overall

7.1

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
American Airlines
7.1
Good
11,480 reviews
American Airlines
7.1
Good
11,480 reviews

Comfort

7.2

Boarding

7.5

Entertainment

6.9

Food

6.4

Crew

7.9

Overall

7.1

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation

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.

  • What airport do you fly from for flights from Killeen to Puerto Rico?

    Killeen Fort Hood Regional (GRK) is the airport you will fly out of if you book a flight from Killeen to Puerto Rico. It is only a 6.9 mi journey to Fort Hood Regional (GRK) from Killeen’s city center.

  • How long is the flight from Killeen to Puerto Rico?

    For as low as $424, American Airlines can have you in Puerto Rico from Killeen in 14h 24m. There are 2167 mi between Killeen and Puerto Rico.

  • Can I find deals for flights from Killeen to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Killeen to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Killeen to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Killeen to Puerto Rico.

  • Can I find deals for business class flights from Killeen to Puerto Rico?

    Yes. Cheapflights offers flight deals from Killeen to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Killeen to Puerto Rico?

    Currently, January is the cheapest month in which you can book a flight from Killeen to Puerto Rico (average of $152). Flying from Killeen to Puerto Rico in August is currently the most expensive (average of $256). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 March 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$349Average$630FlexibilityNo cancel feeOn-time71%

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