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$576+ Cheap flights from Killeen (GRK) to Costa Rica

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJO
Jan 26 — Feb 21
Mon 1/26
Mon 2/2
1 adult, Economy
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Cheap flight deals from Killeen to Costa Rica

Best flights from Killeen to Costa Rica
Discover carefully curated flight deals from Killeen to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

This American Airlines deal was found by Cheapflights users on 12/25. 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 1/2412:31 pmGRK - SJO
1 stop11h 12mAmerican Airlines
Thu 2/56:38 amSJO - GRK
1 stop16h 05mAmerican Airlines
Deal found 12/25$576
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/215:00 pmGRK - SJO
1 stop6h 43mAmerican Airlines
Tue 1/272:54 pmSJO - GRK
1 stop7h 49mAmerican Airlines
Deal found 12/25$576
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/189:48 amGRK - SJO
1 stop13h 55mAmerican Airlines
Tue 2/32:54 pmSJO - GRK
1 stop7h 49mAmerican Airlines
Deal found 12/25$576
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/249:48 amGRK - SJO
1 stop13h 55mAmerican Airlines
Mon 2/26:38 amSJO - GRK
1 stop9h 29mAmerican Airlines
Deal found 12/25$576
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/227:00 amGRK - SJO
1 stop16h 43mAmerican Airlines
Wed 2/42:54 pmSJO - GRK
1 stop7h 49mAmerican Airlines
Deal found 12/25$576
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/249:48 amGRK - SJO
1 stop13h 55mAmerican Airlines
Tue 2/32:54 pmSJO - GRK
1 stop7h 49mAmerican Airlines
Deal found 12/25$576
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/227:00 amGRK - SJO
1 stop16h 43mAmerican Airlines
Thu 1/296:38 amSJO - GRK
1 stop9h 29mAmerican Airlines
Deal found 12/25$576
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/215:00 pmGRK - SJO
1 stop6h 43mAmerican Airlines
Fri 1/306:38 amSJO - GRK
1 stop16h 05mAmerican Airlines
Deal found 12/25$576
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/207:00 amGRK - SJO
2 stops12h 44mAmerican Airlines
Thu 2/56:00 amSJO - GRK
2 stops12h 53mAmerican Airlines
Deal found 12/25$581
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/205:00 pmGRK - SJO
2 stops20h 54mAmerican Airlines
Sat 1/316:00 amSJO - GRK
2 stops16h 43mAmerican Airlines
Deal found 12/25$581
This American Airlines deal was found by Cheapflights users on 12/25. 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 1/195:00 pmGRK - SJO
2 stops20h 54mAmerican Airlines
Tue 2/36:00 amSJO - GRK
2 stops10h 16mAmerican Airlines
Deal found 12/25$581

Find flight deals from Killeen to Costa Rica

Keep the following information in mind while searching for Killeen to Costa Rica flight deals. Data was last updated December 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$576
(American Airlines)
Provider with most accurate pricing for Killeen Fort Hood Regional-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Killeen Fort Hood Regional-San José Juan Santamaria Intl flights.
Search Deals
From Killeen Fort Hood Regional to Costa Rica
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Killeen to Costa Rica 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 27, 2025.
Use the filters below to find and compare flights from Killeen to Costa Rica that are best for you.

Fly from

Killeen

Fly to

Costa Rica

Route

Depart

Return

Price

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sat 1/24

12:31 pm-11:43 pm

1 stop11h 12m

San José Juan Santamaria Intl

Thu 2/5

6:38 am-10:43 pm

1 stop16h 05m

$576

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Wed 1/21

5:00 pm-11:43 pm

1 stop6h 43m

San José Juan Santamaria Intl

Tue 1/27

2:54 pm-10:43 pm

1 stop7h 49m

$576

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sun 1/18

9:48 am-11:43 pm

1 stop13h 55m

San José Juan Santamaria Intl

Tue 2/3

2:54 pm-10:43 pm

1 stop7h 49m

$576

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sat 1/24

9:48 am-11:43 pm

1 stop13h 55m

San José Juan Santamaria Intl

Mon 2/2

6:38 am-4:07 pm

1 stop9h 29m

$576

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Thu 1/22

7:00 am-11:43 pm

1 stop16h 43m

San José Juan Santamaria Intl

Wed 2/4

2:54 pm-10:43 pm

1 stop7h 49m

$576

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sat 1/24

9:48 am-11:43 pm

1 stop13h 55m

San José Juan Santamaria Intl

Tue 2/3

2:54 pm-10:43 pm

1 stop7h 49m

$576

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Thu 1/22

7:00 am-11:43 pm

1 stop16h 43m

San José Juan Santamaria Intl

Thu 1/29

6:38 am-4:07 pm

1 stop9h 29m

$576

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Wed 1/21

5:00 pm-11:43 pm

1 stop6h 43m

San José Juan Santamaria Intl

Fri 1/30

6:38 am-10:43 pm

1 stop16h 05m

$576

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Tue 1/20

7:00 am-7:44 pm

2 stops12h 44m

San José Juan Santamaria Intl

Thu 2/5

6:00 am-6:53 pm

2 stops12h 53m

$581

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Tue 1/20

5:00 pm-1:54 pm

2 stops20h 54m

San José Juan Santamaria Intl

Sat 1/31

6:00 am-10:43 pm

2 stops16h 43m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 11 results
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Best time to book a flight from Killeen to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica 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 Costa Rica

What is the cheapest month to book a flight from Killeen to Costa Rica?

Currently, June is the cheapest month in which you can book a flight from Killeen to Costa Rica (average of $158). Flying from Killeen to Costa Rica in July is currently the most expensive (average of $328). 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.

Related info for your journey

Find useful and relevant information for your journey from Killeen to Costa Rica. 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 Costa Rica?

    Killeen Fort Hood Regional (GRK) is the airport you will fly out of if you book a flight from Killeen to Costa Rica. 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 Costa Rica?

    For as low as $576, American Airlines can have you in Costa Rica from Killeen in 11h 12m. There are 1697 mi between Killeen and Costa Rica.

  • Can I find deals for flights from Killeen to Costa Rica that include hotel bookings?

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

  • How can I find direct flights from Killeen to Costa Rica?

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

  • Can I find deals for business class flights from Killeen to Costa Rica?

    Yes. Cheapflights offers flight deals from Killeen to Costa Rica 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 Costa Rica?

    Currently, June is the cheapest month in which you can book a flight from Killeen to Costa Rica (average of $158). Flying from Killeen to Costa Rica in July is currently the most expensive (average of $328). 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 Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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