$305+ Cheap flights from Killeen (GRK) to Costa Rica
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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJO
Sep 21 — Sep 281
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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One-way
One-way flights from Killeen to Costa RicaSearch for one-way flight options from Killeen to Costa Rica. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from Killeen to Costa Rica. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/124:09 pm -
2 stops20h 50m
Deal found 8/17![American Airlines logo]()
$305
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/137:15 pm -
2 stops25h 52m
Deal found 8/17![American Airlines logo]()
$310
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/144:09 pm -
2 stops21h 50m
Deal found 8/17![American Airlines logo]()
$331
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/114:09 pm -
2 stops44h 50m
Deal found 8/17![American Airlines logo]()
$336
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/1010:04 am -
2 stops11h 03m
Deal found 8/17![American Airlines logo]()
$393
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/94:09 pm -
2 stops28h 58m
Deal found 8/17![American Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/89:59 am -
2 stops10h 53m
Deal found 8/17![American Airlines logo]()
$410
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 7,457,451 searches. Data last updated August 22, 2026.
Use the filters below to find and compare flights from Killeen to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest one-way
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Sat 9/12
4:09 pm-11:59 am
2 stops20h 50m
$305
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Fri 9/11
4:09 pm-11:59 am
2 stops44h 50m
$336
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Thu 9/10
10:04 am-8:07 pm
2 stops11h 03m
$393
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Wed 9/9
4:09 pm-8:07 pm
2 stops28h 58m
$398
Quickest one-way
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Tue 9/8
9:59 am-7:52 pm
2 stops10h 53m
$410
Sorted by cheapest first
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.
GRK-SJO
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
GRK-CR0
GRK-SJO
No data available for this route at this time. Please check back soon.
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