$607+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SJO
Feb 7 — Feb 141
1 adult, Economy
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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
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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
Keep the following information in mind while searching for Killeen to Costa Rica flight deals. Data was last updated January 8, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $607 (American Airlines) |
Find flight deals from Killeen to Costa Rica
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 January 8, 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 January 8, 2026.
This American Airlines deal was found by Cheapflights users on 1/8. 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 3/66:33 pmGRK - SJO
2 stops15h 51mAmerican Airlines
Wed 3/1111:35 pmSJO - GRK
1 stop14h 54mAmerican Airlines
Deal found 1/8![American Airlines logo]()
$607
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 January 8, 2026.
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
Fri 3/6
6:33 pm-10:24 am
2 stops15h 51m
San José Juan Santamaria Intl
Wed 3/11
12:26 pm-9:45 am
2 stops20h 19m
$607
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.