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$120+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJU
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This American Airlines deal was found by Cheapflights users on 12/10. 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 12/316:00 amGRK - SJU
1 stop15h 27mAmerican Airlines
Tue 1/65:51 pmSJU - GRK
2 stops18h 14mAmerican Airlines
Deal found 12/10$471
This American Airlines deal was found by Cheapflights users on 12/11. 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 12/236:00 amGRK - SJU
2 stops10h 07mAmerican Airlines
Tue 12/2310:03 pmSJU - GRK
2 stops13h 48mAmerican Airlines
Deal found 12/11$728
This American Airlines deal was found by Cheapflights users on 12/10. 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 12/226:32 pmGRK - SJU
2 stops13h 03mAmerican Airlines
Thu 1/17:00 amSJU - GRK
1 stop10h 27mAmerican Airlines
Deal found 12/10$800
This American Airlines deal was found by Cheapflights users on 12/10. 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 12/206:32 pmGRK - SJU
2 stops15h 25mAmerican Airlines
Sun 1/410:03 pmSJU - GRK
2 stops13h 48mAmerican Airlines
Deal found 12/10$1,473

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 December 12, 2025.

Round-trip from

$412
(American Airlines)

One-way from

$120
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$662
From Killeen Fort Hood Regional to Puerto Rico
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One-way flight from Killeen Fort Hood Regional to Puerto Rico
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Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 12, 2025.
Use the filters below to find and compare flights from Killeen to Puerto Rico that are best for you.

Fly from

Killeen

Fly to

Puerto Rico

Route

Depart

Return

Price

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Thu 1/8

5:21 am-3:04 pm

1 stop7h 43m

San Juan Luis Munoz Marin Intl

Thu 1/15

7:12 pm-10:05 am

2 stops16h 53m

$412

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sat 1/3

6:32 pm-5:34 am

1 stop9h 02m

San Juan Luis Munoz Marin Intl

Sat 1/17

5:51 pm-10:05 am

2 stops18h 14m

$479

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Tue 4/21

10:22 am-4:00 am

1 stop16h 38m

San Juan Luis Munoz Marin Intl

Mon 4/27

6:55 pm-10:50 am

2 stops16h 55m

$481

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Fri 5/1

6:44 pm-4:00 am

1 stop8h 16m

San Juan Luis Munoz Marin Intl

Mon 5/11

6:59 am-7:41 pm

1 stop13h 42m

$515

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Wed 12/31

10:21 am-11:27 pm

1 stop11h 06m

San Juan Luis Munoz Marin Intl

Tue 1/6

7:11 am-6:53 pm

1 stop13h 42m

$563

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Mon 2/2

7:00 am-10:26 pm

1 stop13h 26m

$120

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Mon 1/12

10:36 am-10:26 pm

1 stop9h 50m

$120

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sat 1/17

9:48 am-10:26 pm

1 stop10h 38m

$189

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Thu 1/1

11:57 am-11:22 pm

1 stop9h 25m

$223

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sat 4/4

6:33 pm-9:00 am

2 stops13h 27m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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 $195). Flying from Killeen to Puerto Rico in March is currently the most expensive (average of $278). 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 December 12, 2025.
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
7.2
Good
11,050 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.5

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
7.2
Good
11,050 reviews
American Airlines
7.2
Good
11,050 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.5

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 $412, American Airlines can have you in Puerto Rico from Killeen in 7h 43m. 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 $195). Flying from Killeen to Puerto Rico in March is currently the most expensive (average of $278). 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

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$338Average$584FlexibilityNo cancel feeOn-time71%

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