$516+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJO
Oct 10 — Oct 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Killeen to Costa Rica with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Killeen to Costa Rica
Cheapest
Best
One-way
Cheapest flights from Killeen to Costa RicaExplore 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 September 10, 2026.
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 September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/2212:29 pm -
1 stop10h 20m
Wed 12/22:01 pm -
2 stops19h 26m
Deal found 9/8![American Airlines logo]()
$768
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/206:45 pm -
1 stop28h 02m
Wed 12/22:01 pm -
2 stops21h 55m
Deal found 9/8![American Airlines logo]()
$800
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/206:45 pm -
1 stop28h 02m
Wed 11/2512:37 am -
1 stop8h 53m
Deal found 9/8![American Airlines logo]()
$807
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/216:45 pm -
1 stop28h 04m
Wed 12/22:01 pm -
2 stops19h 26m
Deal found 9/8![American Airlines logo]()
$826
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/216:45 pm -
1 stop28h 04m
Wed 11/2512:37 am -
1 stop8h 53m
Deal found 9/8![American Airlines logo]()
$832
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/2210:00 am -
1 stop12h 49m
Tue 12/13:52 pm -
2 stops22h 45m
Deal found 9/8![American Airlines logo]()
$838
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/206:45 pm -
1 stop28h 02m
Tue 12/13:52 pm -
2 stops20h 04m
Deal found 9/8![American Airlines logo]()
$870
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/2210:00 am -
1 stop12h 49m
Wed 11/2512:37 am -
1 stop8h 53m
Deal found 9/8![American Airlines logo]()
$878
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/2210:00 am -
1 stop12h 49m
Sun 11/2912:37 am -
1 stop14h 07m
Deal found 9/8![American Airlines logo]()
$893
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/216:45 pm -
1 stop28h 04m
Tue 12/13:52 pm -
2 stops20h 04m
Deal found 9/8![American Airlines logo]()
$896
This BusinessClass deal was found by Cheapflights users on 9/5. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:43 pm -
2 stops19h 34m
Mon 11/303:23 pm -
1 stop20h 36m
Deal found 9/5![GOL logo]()
$1,310
Best flights from Killeen to Costa RicaDiscover 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 September 10, 2026.
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 September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/2210:00 am -
1 stop12h 49m
Tue 12/13:52 pm -
2 stops22h 45m
Deal found 9/8![American Airlines logo]()
$838
This BusinessClass deal was found by Cheapflights users on 9/5. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:43 pm -
2 stops18h 18m
Mon 11/302:07 pm -
2 stops21h 52m
Deal found 9/5![GOL logo]()
$1,141
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/216:45 pm -
1 stop28h 04m
Tue 12/13:52 pm -
2 stops20h 04m
Deal found 9/8![American Airlines logo]()
$896
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/2210:00 am -
1 stop12h 49m
Wed 12/22:46 pm -
1 stop8h 58m
Deal found 9/8![American Airlines logo]()
$940
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/216:45 pm -
1 stop28h 04m
Wed 12/22:46 pm -
1 stop8h 58m
Deal found 9/8![American Airlines logo]()
$998
This BusinessClass deal was found by Cheapflights users on 9/5. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:43 pm -
2 stops19h 34m
Mon 11/303:23 pm -
1 stop20h 36m
Deal found 9/5![GOL logo]()
$1,310
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/216:45 pm -
1 stop28h 04m
Thu 11/2612:37 am -
1 stop11h 22m
Deal found 9/8![American Airlines logo]()
$1,215
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/206:45 pm -
1 stop28h 02m
Thu 11/2612:37 am -
1 stop8h 53m
Deal found 9/8![American Airlines logo]()
$1,412
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 September 10, 2026.
Search for one-way flight options from Killeen to Costa Rica. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/207:15 pm -
2 stops25h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$516
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/215:00 am -
1 stop9h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$560
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 September 10, 2026.
Round-trip from | $768 (American Airlines) |
|---|---|
One-way from | $516 (American Airlines) |
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 September 10, 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 round-trip
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Sun 9/20
7:15 pm-8:07 pm
2 stops25h 52m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$516
Quickest round-trip
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Mon 9/21
5:00 am-1:57 pm
1 stop9h 57m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$560
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Sun 11/22
10:00 am-10:49 pm
1 stop12h 49m
San José Juan Santamaria Intl
Tue 12/1
3:52 pm-2:37 pm
2 stops22h 45m
$838
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Sat 11/21
6:45 pm-10:49 pm
1 stop28h 04m
San José Juan Santamaria Intl
Tue 12/1
3:52 pm-11:56 am
2 stops20h 04m
$896
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Sun 11/22
10:00 am-10:49 pm
1 stop12h 49m
San José Juan Santamaria Intl
Wed 12/2
2:46 pm-11:44 pm
1 stop8h 58m
$940
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Sat 11/21
6:45 pm-10:49 pm
1 stop28h 04m
San José Juan Santamaria Intl
Wed 12/2
2:46 pm-11:44 pm
1 stop8h 58m
$998
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Thu 11/12
6:43 pm-1:01 pm
2 stops18h 18m
San José Juan Santamaria Intl
Mon 11/30
2:07 pm-11:59 am
2 stops21h 52m
$1,141
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Sat 11/21
6:45 pm-10:49 pm
1 stop28h 04m
San José Juan Santamaria Intl
Thu 11/26
12:37 am-11:59 am
1 stop11h 22m
$1,215
KilleenLiberia
GRK Killeen Fort Hood Regional - LIR Liberia
GRKLIR
Killeen Fort Hood Regional
Thu 11/12
6:43 pm-2:17 pm
2 stops19h 34m
Liberia
Mon 11/30
3:23 pm-11:59 am
1 stop20h 36m
$1,310
KilleenSan José
GRK Killeen Fort Hood Regional - SJO San José Juan Santamaria Intl
GRKSJO
Killeen Fort Hood Regional
Fri 11/20
6:45 pm-10:47 pm
1 stop28h 02m
San José Juan Santamaria Intl
Thu 11/26
12:37 am-9:30 am
1 stop8h 53m
$1,412
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
GRK-LIR
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
GRK-LIR
No data available for this route at this time. Please check back soon.
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights