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Cheap flights from Harlingen to Costa Rica from $655

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen to Costa Rica departing on 12/18. 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 Harlingen to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:20 am - 1:22 pmHRL  Harlingen Valley Intl-SJO San José Juan Santamaria Intl
28h 02m1 stop Houston George Bush Intcntl
United Airlines Logo
8:45 am - 9:44 pmSJO  San José Juan Santamaria Intl-HRL Harlingen Valley Intl
12h 59m1 stop Houston George Bush Intcntl
$695United Airlines
Sun, Jan 31 - Wed, Feb 3
United Airlines Logo
7:15 am - 7:37 pmHRL  Harlingen Valley Intl-SJO San José Juan Santamaria Intl
13h 22m1 stop Houston George Bush Intcntl
United Airlines Logo
1:25 pm - 3:59 pmSJO  San José Juan Santamaria Intl-HRL Harlingen Valley Intl
25h 34m1 stop Houston George Bush Intcntl
$951United Airlines
Sat, Sep 26 - Wed, Sep 30
United Airlines Logo
5:05 am - 7:37 pmHRL  Harlingen Valley Intl-SJO San José Juan Santamaria Intl
15h 32m1 stop Houston George Bush Intcntl
United Airlines Logo
7:55 am - 3:59 pmSJO  San José Juan Santamaria Intl-HRL Harlingen Valley Intl
7h 04m1 stop Houston George Bush Intcntl
$992United Airlines
Sat, Sep 26 - Wed, Sep 30
Air Canada Logo
5:05 am - 10:00 pmHRL  Harlingen Valley Intl-SJO San José Juan Santamaria Intl
17h 55m2 stops Houston George Bush Intcntl Toronto Pearson Intl
Air Canada Logo
7:10 am - 9:52 pmSJO  San José Juan Santamaria Intl-HRL Harlingen Valley Intl
37h 42m2 stops Toronto Pearson Intl Houston George Bush Intcntl
$1,298Air Canada
Sat, Sep 26 - Wed, Sep 30
Air Canada Logo
7:18 am - 10:30 pmHRL  Harlingen Valley Intl-SJO San José Juan Santamaria Intl
39h 12m2 stops Houston George Bush Intcntl Toronto Pearson Intl
Air Canada Logo
8:45 am - 9:44 pmSJO  San José Juan Santamaria Intl-HRL Harlingen Valley Intl
36h 59m2 stops Toronto Pearson Intl Houston George Bush Intcntl
$1,327Air Canada
Sun, Jan 31 - Wed, Feb 3
Air Canada Logo
7:15 am - 10:00 pmHRL  Harlingen Valley Intl-SJO San José Juan Santamaria Intl
15h 45m2 stops Houston George Bush Intcntl Toronto Pearson Intl
Air Canada Logo
7:10 am - 7:44 pmSJO  San José Juan Santamaria Intl-HRL Harlingen Valley Intl
35h 34m2 stops Toronto Pearson Intl Houston George Bush Intcntl
$2,751Air Canada
Sat, Sep 26 - Wed, Sep 30

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American Airlines flights from Harlingen to Costa Rica

Our best American Airlines deals on Harlingen to Costa Rica flight tickets
American Airlines
Dec 1
HRL6:41 pmHarlingen Valley Intl
20h 08m
2 stops
SJO2:49 pmSan José Juan Santamaria Intl
Dec 7
SJO2:07 pmSan José Juan Santamaria Intl
20h 07m
2 stops
HRL10:14 amHarlingen Valley Intl
$805
American Airlines
Dec 1
HRL6:41 pmHarlingen Valley Intl
18h 24m
2 stops
SJO1:05 pmSan José Juan Santamaria Intl
Dec 7
SJO2:46 pmSan José Juan Santamaria Intl
19h 28m
1 stop
HRL10:14 amHarlingen Valley Intl
$862

United Airlines flights from Harlingen to Costa Rica

Our best United Airlines deals on Harlingen to Costa Rica flight tickets
United Airlines
Jan 31
HRL9:20 amHarlingen Valley Intl
28h 02m
1 stop
SJO1:22 pmSan José Juan Santamaria Intl
Feb 3
SJO8:45 amSan José Juan Santamaria Intl
12h 59m
1 stop
HRL9:44 pmHarlingen Valley Intl
$695
United Airlines
Sep 26
HRL7:15 amHarlingen Valley Intl
13h 22m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
Sep 30
SJO1:25 pmSan José Juan Santamaria Intl
25h 34m
1 stop
HRL3:59 pmHarlingen Valley Intl
$951
United Airlines
Sep 26
HRL5:05 amHarlingen Valley Intl
15h 32m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
Sep 30
SJO7:55 amSan José Juan Santamaria Intl
7h 04m
1 stop
HRL3:59 pmHarlingen Valley Intl
$992

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen 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 August 14, 2026.
Use the filters below to find and compare flights from Harlingen to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sun 1/31

9:20 am-1:22 pm

1 stop28h 02m

San José Juan Santamaria Intl

Wed 2/3

8:45 am-9:44 pm

1 stop12h 59m

$695

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sat 9/26

7:15 am-7:37 pm

1 stop13h 22m

San José Juan Santamaria Intl

Wed 9/30

1:25 pm-3:59 pm

1 stop25h 34m

$951
Quickest round-trip

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sat 9/26

5:05 am-7:37 pm

1 stop15h 32m

San José Juan Santamaria Intl

Wed 9/30

7:55 am-3:59 pm

1 stop7h 04m

$992

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sat 9/26

5:05 am-10:00 pm

2 stops17h 55m

San José Juan Santamaria Intl

Wed 9/30

7:10 am-9:52 pm

2 stops37h 42m

$1,298

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sun 1/31

7:18 am-10:30 pm

2 stops39h 12m

San José Juan Santamaria Intl

Wed 2/3

8:45 am-9:44 pm

2 stops36h 59m

$1,327

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sat 9/26

7:15 am-10:00 pm

2 stops15h 45m

San José Juan Santamaria Intl

Wed 9/30

7:10 am-7:44 pm

2 stops35h 34m

$2,751
Cheapest one-way

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Fri 12/18

11:52 am-9:39 am

2 stops21h 47m

$655

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sun 12/20

7:15 am-10:32 pm

1 stop15h 17m

$660

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sat 12/19

2:47 pm-1:55 pm

1 stop23h 08m

$788

HarlingenSan José

HRL Harlingen Valley Intl - SJO San José Juan Santamaria Intl

HRLSJO

Harlingen Valley Intl

Sun 12/20

10:44 am-10:35 am

2 stops23h 51m

$843

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Costa Rica from

How to get the cheapest flight ticket from Harlingen 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 is the cheapest airline that flies from Harlingen Valley Intl to Costa Rica?

United Airlines is the most popular carrier operating from Harlingen Valley Intl to Costa Rica

Cheap Harlingen to Costa Rica flight deals and tips

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

Fastest flight time

15h 32m

Direct flights

None
The fastest flight from Harlingen to Costa Rica takes 15h 32m
There are no direct flights from Harlingen to Costa Rica. There are no popular flight routes from Harlingen to Costa Rica.
Search flight deals

Frequently asked questions about flying from Harlingen to Costa Rica

  • When did momondo last update prices for flights from Harlingen Valley Intl Airport to Costa Rica?

    Prices for flights from Harlingen Valley Intl Airport to Costa Rica refresh daily.

  • How old do you have to be to fly from Harlingen Valley Intl 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 Harlingen Valley Intl Airport to Costa Rica.

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

    The required travel and health documents for your Costa Rica trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Costa Rica. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

Finding the right flight to Costa Rica from Harlingen is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Costa Rica quick and easy, saving you time and money.

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

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

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

momondo provides multiple filters to help you find the best flight to Costa Rica from Harlingen. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Harlingen 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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