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San Juan

$191+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJU
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/26. 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 2/236:33 pm
GRK
-
SJU
2 stops15h 23m
American Airlines
Mon 3/27:01 pm
SJU
-
GRK
2 stops16h 44m
American Airlines
Deal found 1/26$260
This American Airlines deal was found by Cheapflights users on 1/27. 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 38m
American Airlines
Deal found 1/27$321
This American Airlines deal was found by Cheapflights users on 1/27. 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 2/263:59 pm
GRK
-
SJU
2 stops16h 01m
American Airlines
Sat 2/287:00 am
SJU
-
GRK
2 stops17h 36m
American Airlines
Deal found 1/27$423
This American Airlines deal was found by Cheapflights users on 1/29. 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 3/93:59 pm
GRK
-
SJU
2 stops16h 01m
American Airlines
Fri 3/136:33 am
SJU
-
GRK
1 stop12h 30m
American Airlines
Deal found 1/29$473
This American Airlines deal was found by Cheapflights users on 1/27. 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 4/257:13 am
GRK
-
SJU
2 stops13h 11m
American Airlines
Fri 5/111:59 pm
SJU
-
GRK
1 stop10h 38m
American Airlines
Deal found 1/27$484
This American Airlines deal was found by Cheapflights users on 1/29. 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 3/1012:01 pm
GRK
-
SJU
2 stops19h 59m
American Airlines
Sat 3/146:01 pm
SJU
-
GRK
2 stops16h 44m
American Airlines
Deal found 1/29$581
This American Airlines deal was found by Cheapflights users on 1/28. 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 3/511:56 am
GRK
-
SJU
1 stop9h 35m
American Airlines
Sat 3/71:30 am
SJU
-
GRK
1 stop9h 15m
American Airlines
Deal found 1/28$586
This American Airlines deal was found by Cheapflights users on 1/26. 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 8/43:06 pm
GRK
-
SJU
1 stop7h 10m
American Airlines
Fri 8/143:15 pm
SJU
-
GRK
1 stop9h 07m
American Airlines
Deal found 1/26$624
This American Airlines deal was found by Cheapflights users on 1/27. 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 3/276:33 pm
GRK
-
SJU
2 stops15h 23m
American Airlines
Tue 3/316:33 am
SJU
-
GRK
1 stop12h 30m
American Airlines
Deal found 1/27$636

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 January 29, 2026.

Round-trip from

$260
(American Airlines)

One-way from

$191
(American Airlines)

Popular in

January

Cheapest in

September

Average price

$800
From Killeen Fort Hood Regional to San Juan
Search Deals
One-way flight from Killeen Fort Hood Regional to San Juan
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($157 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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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 January 29, 2026.
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

Mon 2/23

6:33 pm-11:56 am

2 stops15h 23m

San Juan Luis Munoz Marin Intl

Mon 3/2

7:01 pm-9:45 am

2 stops16h 44m

$260

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sat 4/25

7:09 pm-4:32 am

1 stop8h 23m

San Juan Luis Munoz Marin Intl

Fri 5/1

11:59 pm-12:38 pm

1 stop13h 39m

$321

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Tue 4/21

3:54 pm-9:13 am

2 stops16h 19m

San Juan Luis Munoz Marin Intl

Mon 4/27

11:59 pm-9:37 am

1 stop10h 38m

$321

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Thu 5/7

7:09 pm-4:32 am

1 stop8h 23m

San Juan Luis Munoz Marin Intl

Mon 5/11

11:59 pm-9:37 am

1 stop10h 38m

$382

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Thu 2/26

7:00 am-11:31 pm

1 stop14h 31m

San Juan Luis Munoz Marin Intl

Sat 2/28

7:00 am-10:36 pm

2 stops17h 36m

$423

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Thu 2/26

11:56 am-11:31 pm

1 stop9h 35m

$293

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sun 6/14

3:06 pm-4:32 am

1 stop12h 26m

$293

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Sat 4/4

6:33 pm-9:00 am

2 stops13h 27m

$352

KilleenSan Juan

GRK - SJU

GRKSJU

Killeen Fort Hood Regional

Fri 5/8

7:13 am-9:24 pm

2 stops13h 11m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 $171). Flying from Killeen to San Juan in April is currently the most expensive (average of $266). 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 January 29, 2026.
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
11,206 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

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
11,206 reviews
American Airlines
7.2
Good
11,206 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

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 15h 23m. 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 $349. Users have found that American Airlines is 39% 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 $171). Flying from Killeen to San Juan in April is currently the most expensive (average of $266). 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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Alternative routes for Killeen to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$349Average$593FlexibilityNo cancel feeOn-time71%

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