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San Juan

$120+ Cheap flights from Killeen (GRK) to San Juan

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
janv. 11 — janv. 181
dim. 1/11
dim. 1/18
1 adult, Economy
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Cheap flight deals from Killeen to San Juan

Cheapest flights from Killeen to San Juan
Explore the most affordable flight options available from Killeen to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on décembre 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.
mer. 12/316:00 amGRK - SJU
1 stop15h 27mAmerican Airlines
mar. 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.
mar. 12/236:00 amGRK - SJU
2 stops10h 07mAmerican Airlines
mar. 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.
lun. 12/226:32 pmGRK - SJU
2 stops13h 03mAmerican Airlines
jeu. 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.
sam. 12/206:32 pmGRK - SJU
2 stops15h 25mAmerican Airlines
dim. 1/410:03 pmSJU - GRK
2 stops13h 48mAmerican Airlines
Deal found 12/10$1,473

Find flight deals from Killeen to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Killeen (GRK) to San Juan (PR1). 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 décembre 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 San Juan
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One-way flight from Killeen Fort Hood Regional to San Juan
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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 San Juan 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 décembre 12, 2025.
Use the filters below to find and compare flights from Killeen to San Juan that are best for you.

Fly from

Killeen

Fly to

San Juan

Route

Depart

Return

Price

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

jeu. 1/8

5:21 am-3:04 pm

1 stop7h 43m

San Juan Luis Munoz Marin Intl

jeu. 1/15

7:12 pm-10:05 am

2 stops16h 53m

$412

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

sam. 1/3

6:32 pm-5:34 am

1 stop9h 02m

San Juan Luis Munoz Marin Intl

sam. 1/17

5:51 pm-10:05 am

2 stops18h 14m

$479

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

mar. 4/21

10:22 am-4:00 am

1 stop16h 38m

San Juan Luis Munoz Marin Intl

lun. 4/27

6:55 pm-10:50 am

2 stops16h 55m

$481

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

ven. 5/1

6:44 pm-4:00 am

1 stop8h 16m

San Juan Luis Munoz Marin Intl

lun. 5/11

6:59 am-7:41 pm

1 stop13h 42m

$515

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

mer. 12/31

10:21 am-11:27 pm

1 stop11h 06m

San Juan Luis Munoz Marin Intl

mar. 1/6

7:11 am-6:53 pm

1 stop13h 42m

$563

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

lun. 2/2

7:00 am-10:26 pm

1 stop13h 26m

$120

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

lun. 1/12

10:36 am-10:26 pm

1 stop9h 50m

$120

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

sam. 1/17

9:48 am-10:26 pm

1 stop10h 38m

$189

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

jeu. 1/1

11:57 am-11:22 pm

1 stop9h 25m

$223

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

sam. 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 San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

What is the cheapest month to book a flight from Killeen to San Juan?

Currently, January is the cheapest month in which you can book a flight from Killeen to San Juan (average of $195). Flying from Killeen to San Juan 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 San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated décembre 12, 2025.
Peruse reviews from past customers who have flown with American Airlines from Killeen to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,050 reviews

Entertainment

6.9

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

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

Entertainment

6.9

Overall

7.2

Comfort

7.2

Boarding

7.5

Crew

8.0

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 San Juan. 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 San Juan?

    Located just 6.9 mi from the city center, Killeen Fort Hood Regional is the airport most travelers will use when flying to San Juan from Killeen. Booking flights from Fort Hood Regional (GRK) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 1 airline.

  • How long is the flight from Killeen to San Juan?

    There are many flights that can get you from Killeen to San Juan in 7h 43m. Fly via American Airlines to get the fastest option. Killeen and San Juan are separated by a distance of 2167 mi.

  • What is the cheapest airline to fly from Killeen to San Juan round-trip?

    Flying on American Airlines is currently your cheapest option to San Juan, with prices starting at $338. Users have found that American Airlines is 38% cheaper than the other options available to this destination.

  • Can I find deals for flights from Killeen to San Juan that include hotel bookings?

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

  • How can I find direct flights from Killeen to San Juan?

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

  • Can I find deals for business class flights from Killeen to San Juan?

    Yes. Cheapflights offers flight deals from Killeen to San Juan 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 San Juan?

    Currently, January is the cheapest month in which you can book a flight from Killeen to San Juan (average of $195). Flying from Killeen to San Juan 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 San Juan

Discover the top airline that operate flights from Killeen to San Juan. 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 décembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$338Average$584FlexibilityNo cancel feeOn-time71%

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