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Cheap flights from Killeen to Costa Rica from $645

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Killeen to Costa Rica departing on 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Killeen to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
4:10 pm - 2:02 pm
GRK
-
SJO
21h 52m
2 stops
American Airlines Logo
2:40 pm - 11:39 pm
SJO
-
GRK
8h 59m
1 stop
$645American Airlines
Tue, Dec 1 - Tue, Dec 8
American Airlines Logo
7:53 pm - 1:15 pm
GRK
-
LIR
18h 22m
2 stops
American Airlines Logo
12:35 pm - 9:36 am
LIR
-
GRK
20h 01m
2 stops
$806American Airlines
Sat, Jul 25 - Sun, Aug 2
American Airlines Logo
12:54 pm - 2:40 pm
GRK
-
LIR
26h 46m
1 stop
American Airlines Logo
12:35 pm - 12:12 pm
LIR
-
GRK
22h 37m
2 stops
$812American Airlines
Sat, Jul 25 - Sun, Aug 2
American Airlines Logo
10:34 am - 12:09 pm
GRK
-
SJO
25h 35m
2 stops
American Airlines Logo
7:00 am - 11:20 am
SJO
-
GRK
28h 20m
2 stops
$847American Airlines
Sat, Nov 21 - Fri, Nov 27
American Airlines Logo
11:52 am - 2:10 pm
GRK
-
SJO
26h 18m
1 stop
American Airlines Logo
7:00 am - 11:20 am
SJO
-
GRK
28h 20m
2 stops
$854American Airlines
Sat, Nov 21 - Fri, Nov 27
GOL Logo
7:53 pm - 2:40 pm
GRK
-
LIR
19h 47m
1 stop
GOL Logo
3:40 pm - 9:36 am
LIR
-
GRK
16h 56m
1 stop
$856GOL
Sat, Jul 25 - Sun, Aug 2
American Airlines Logo
4:10 pm - 10:59 pm
GRK
-
SJO
6h 49m
1 stop
American Airlines Logo
7:00 am - 10:04 am
SJO
-
GRK
27h 04m
2 stops
$898American Airlines
Sun, Nov 22 - Fri, Nov 27
American Airlines Logo
6:05 am - 10:59 pm
GRK
-
SJO
16h 54m
1 stop
American Airlines Logo
6:22 am - 3:40 pm
SJO
-
GRK
9h 18m
1 stop
$1,011American Airlines
Sun, Nov 22 - Fri, Nov 27
American Airlines Logo
5:05 am - 1:39 pm
GRK
-
SJO
8h 34m
2 stops
American Airlines Logo
6:22 am - 3:40 pm
SJO
-
GRK
9h 18m
1 stop
$1,131American Airlines
Sat, Nov 21 - Fri, Nov 27
American Airlines Logo
10:34 am - 10:59 pm
GRK
-
SJO
12h 25m
1 stop
American Airlines Logo
6:22 am - 3:40 pm
SJO
-
GRK
9h 18m
1 stop
$1,173American Airlines
Sun, Nov 22 - Sat, Nov 28

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American Airlines flights from Killeen to Costa Rica

Our best American Airlines deals on Killeen to Costa Rica flight tickets
American Airlines
Dec 1
GRK4:10 pmKilleen Fort Hood Regional
21h 52m
2 stops
SJO2:02 pmSan José Juan Santamaria Intl
Dec 8
SJO2:40 pmSan José Juan Santamaria Intl
8h 59m
1 stop
GRK11:39 pmKilleen Fort Hood Regional
$645
American Airlines
Jul 25
GRK7:53 pmKilleen Fort Hood Regional
18h 22m
2 stops
LIR1:15 pmLiberia
Aug 2
LIR12:35 pmLiberia
20h 01m
2 stops
GRK9:36 amKilleen Fort Hood Regional
$806
American Airlines
Jul 25
GRK12:54 pmKilleen Fort Hood Regional
26h 46m
1 stop
LIR2:40 pmLiberia
Aug 2
LIR12:35 pmLiberia
22h 37m
2 stops
GRK12:12 pmKilleen Fort Hood Regional
$812

momondo 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, momondo users made 832,500 searches. Data last updated June 24, 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

Price

Cheapest round-trip

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Tue 12/1

4:10 pm-2:02 pm

2 stops21h 52m

San José Juan Santamaria Intl

Tue 12/8

2:40 pm-11:39 pm

1 stop8h 59m

$645

KilleenLiberia

GRK - LIR

GRKLIR

Killeen Fort Hood Regional

Sat 7/25

7:53 pm-1:15 pm

2 stops18h 22m

Liberia

Sun 8/2

12:35 pm-9:36 am

2 stops20h 01m

$806

KilleenLiberia

GRK - LIR

GRKLIR

Killeen Fort Hood Regional

Sat 7/25

12:54 pm-2:40 pm

1 stop26h 46m

Liberia

Sun 8/2

12:35 pm-12:12 pm

2 stops22h 37m

$812

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sat 11/21

10:34 am-12:09 pm

2 stops25h 35m

San José Juan Santamaria Intl

Fri 11/27

7:00 am-11:20 am

2 stops28h 20m

$847

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sat 11/21

11:52 am-2:10 pm

1 stop26h 18m

San José Juan Santamaria Intl

Fri 11/27

7:00 am-11:20 am

2 stops28h 20m

$854

KilleenLiberia

GRK - LIR

GRKLIR

Killeen Fort Hood Regional

Sat 7/25

7:53 pm-2:40 pm

1 stop19h 47m

Liberia

Sun 8/2

3:40 pm-9:36 am

1 stop16h 56m

$856

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sun 11/22

4:10 pm-10:59 pm

1 stop6h 49m

San José Juan Santamaria Intl

Fri 11/27

7:00 am-10:04 am

2 stops27h 04m

$898

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sun 11/22

6:05 am-10:59 pm

1 stop16h 54m

San José Juan Santamaria Intl

Fri 11/27

6:22 am-3:40 pm

1 stop9h 18m

$1,011
Quickest round-trip

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sat 11/21

5:05 am-1:39 pm

2 stops8h 34m

San José Juan Santamaria Intl

Fri 11/27

6:22 am-3:40 pm

1 stop9h 18m

$1,131

KilleenSan José

GRK - SJO

GRKSJO

Killeen Fort Hood Regional

Sun 11/22

10:34 am-10:59 pm

1 stop12h 25m

San José Juan Santamaria Intl

Sat 11/28

6:22 am-3:40 pm

1 stop9h 18m

$1,173

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Costa Rica from

How to get the cheapest flight ticket from Killeen to Costa Rica

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Costa Rica?

United Airlines, American Airlines and JetBlue are the top three most popular airlines that fly to Costa Rica from Killeen according to our data. United Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 6 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

Cheap Killeen to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Killeen to Costa Rica

Fastest flight time

11h 07m

Direct flights

None
The fastest flight from Killeen to Costa Rica takes 11h 07m
There are no direct flights from Killeen to Costa Rica. There are no popular flight routes from Killeen to Costa Rica.
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Frequently asked questions about flying from Killeen to Costa Rica

  • When did momondo last update prices for flights from Killeen Fort Hood Regional Airport to Costa Rica?

    Prices for flights from Killeen Fort Hood Regional Airport to Costa Rica are refreshed on a daily basis.

  • How old do you have to be to fly from Killeen Fort Hood Regional Airport to Costa Rica?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Killeen Fort Hood Regional Airport to Costa Rica.

  • What documentation or ID do you need to fly to Costa Rica?

    The travel and health documents required for your trip to Costa Rica can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Costa Rica. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Killeen to Costa Rica?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Killeen to Costa Rica. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Killeen to Costa Rica with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Killeen to Costa Rica flights to just show those with flexible booking policies.

How can momondo help me find flights from Killeen to Costa Rica?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Costa Rica from Killeen.

I’m not ready to book a flight from Killeen to Costa Rica right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Killeen to Costa Rica flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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