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$495+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJO
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Killeen to Costa Rica

Cheapest flights from Killeen to Costa Rica
Explore the most affordable flight options available from Killeen to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This American Airlines deal was found by Cheapflights users on 12/3. 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 12/44:10 pmGRK - SJO
1 stop6h 49mAmerican Airlines
Sat 12/132:56 pmSJO - GRK
1 stop7h 22mAmerican Airlines
Deal found 12/3$606
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/44:10 pmGRK - SJO
1 stop6h 49mAmerican Airlines
Fri 12/126:00 amSJO - GRK
2 stops27h 25mAmerican Airlines
Deal found 12/3$610
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/46:05 amGRK - SJO
1 stop16h 54mAmerican Airlines
Sun 12/142:40 pmSJO - GRK
1 stop8h 59mAmerican Airlines
Deal found 12/3$611
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/611:52 amGRK - SJO
1 stop9h 19mAmerican Airlines
Sat 12/132:56 pmSJO - GRK
1 stop27h 22mAmerican Airlines
Deal found 12/3$612
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/611:52 amGRK - SJO
1 stop9h 19mAmerican Airlines
Sun 12/142:40 pmSJO - GRK
1 stop20h 40mAmerican Airlines
Deal found 12/3$617
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/46:05 amGRK - SJO
2 stops16h 23mAmerican Airlines
Thu 12/113:06 pmSJO - GRK
2 stops27h 18mAmerican Airlines
Deal found 12/3$627
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/56:05 amGRK - SJO
1 stop15h 06mAmerican Airlines
Mon 12/812:56 pmSJO - GRK
2 stops22h 24mAmerican Airlines
Deal found 12/3$640
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/511:52 amGRK - SJO
1 stop9h 19mAmerican Airlines
Sun 12/73:06 pmSJO - GRK
2 stops20h 14mAmerican Airlines
Deal found 12/3$645
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/37:15 pmGRK - SJO
2 stops18h 47mAmerican Airlines
Tue 12/167:00 amSJO - GRK
2 stops14h 05mAmerican Airlines
Deal found 12/3$661
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/37:15 pmGRK - SJO
1 stop27h 44mAmerican Airlines
Mon 12/156:20 amSJO - GRK
1 stop12h 04mAmerican Airlines
Deal found 12/3$664
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/37:15 pmGRK - SJO
2 stops18h 47mAmerican Airlines
Sun 12/143:06 pmSJO - GRK
2 stops27h 18mAmerican Airlines
Deal found 12/3$666

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 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$495
(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 4, 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

KilleenLiberia

GRK - LIR

GRKLIR

Killeen Fort Hood Regional

Mon 2/23

6:00 am-12:28 pm

1 stop6h 28m

Liberia

Thu 2/26

1:20 pm-9:41 am

2 stops20h 21m

$495

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Mon 2/9

5:21 am-7:44 pm

2 stops14h 23m

San José Juan Santamaria Intl

Thu 2/12

7:45 am-9:41 am

2 stops25h 56m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

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 March is currently the most expensive (average of $333). 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 $495, American Airlines can have you in Costa Rica from Killeen in 6h 28m. There are 1618 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 March is currently the most expensive (average of $333). 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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