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Cheap flights from Harlingen to Costa Rica from $363

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 6/3. 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
0 bags

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Find the cheapest flights from Harlingen to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:03 pm - 1:00 pm
HRL
-
SJO
17h 57m
2 stops
American Airlines Logo
2:45 pm - 7:36 pm
SJO
-
HRL
27h 51m
2 stops
$529American Airlines
Thu, Oct 15 - Mon, Oct 19
American Airlines Logo
8:03 pm - 1:00 pm
HRL
-
SJO
17h 57m
2 stops
American Airlines Logo
1:05 pm - 7:36 pm
SJO
-
HRL
29h 31m
2 stops
$534American Airlines
Thu, Oct 15 - Sun, Oct 18
American Airlines Logo
10:47 am - 9:36 pm
HRL
-
SJO
11h 49m
1 stop
American Airlines Logo
11:59 pm - 4:25 pm
SJO
-
HRL
15h 26m
1 stop
$546American Airlines
Fri, May 15 - Thu, May 21
American Airlines Logo
2:51 pm - 11:30 am
HRL
-
SJO
21h 39m
2 stops
American Airlines Logo
11:59 pm - 4:25 pm
SJO
-
HRL
15h 26m
1 stop
$589American Airlines
Fri, May 15 - Thu, May 21
American Airlines Logo
8:03 pm - 1:58 pm
HRL
-
SJO
18h 55m
1 stop
American Airlines Logo
12:57 pm - 10:56 pm
SJO
-
HRL
8h 59m
1 stop
$596American Airlines
Thu, Oct 15 - Mon, Oct 19
American Airlines Logo
8:03 pm - 1:58 pm
HRL
-
SJO
18h 55m
1 stop
American Airlines Logo
1:05 pm - 10:16 am
SJO
-
HRL
20h 11m
2 stops
$605American Airlines
Thu, Oct 15 - Sun, Oct 18
Southwest Logo
5:30 am - 12:35 pm
HRL
-
SJO
8h 05m
1 stop
Southwest Logo
1:05 pm - 11:55 pm
SJO
-
HRL
9h 50m
1 stop
$631Southwest
Thu, Oct 15 - Sun, Oct 18
Southwest Logo
6:55 am - 7:00 pm
HRL
-
SJO
13h 05m
2 stops
Southwest Logo
9:00 am - 11:00 pm
SJO
-
HRL
13h 00m
2 stops
$675Southwest
Fri, May 15 - Thu, May 21
United Airlines Logo
5:20 pm - 10:39 pm
HRL
-
SJO
6h 19m
1 stop
United Airlines Logo
12:30 am - 7:49 pm
SJO
-
HRL
18h 19m
1 stop
$684United Airlines
Wed, Jun 3 - Mon, Jun 8
Multiple Airlines Logo
5:20 pm - 10:00 pm
HRL
-
SJO
29h 40m
2 stops
Multiple Airlines Logo
7:10 am - 1:30 pm
SJO
-
HRL
29h 20m
2 stops
$3,100Multiple Airlines
Wed, Jun 3 - Tue, Jun 9

United Airlines flights from Harlingen to Costa Rica

Our best United Airlines deals on Harlingen to Costa Rica flight tickets
United Airlines
May 9
HRL7:00 amHarlingen Valley Intl
6h 21m
1 stop
SJO12:21 pmSan José Juan Santamaria Intl
May 16
SJO7:55 amSan José Juan Santamaria Intl
11h 05m
1 stop
HRL8:00 pmHarlingen Valley Intl
$668
United Airlines
Jun 3
HRL5:20 pmHarlingen Valley Intl
6h 19m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Jun 8
SJO12:30 amSan José Juan Santamaria Intl
18h 19m
1 stop
HRL7:49 pmHarlingen Valley Intl
$684

American Airlines flights from Harlingen to Costa Rica

Our best American Airlines deals on Harlingen to Costa Rica flight tickets
American Airlines
Oct 15
HRL8:03 pmHarlingen Valley Intl
17h 57m
2 stops
SJO1:00 pmSan José Juan Santamaria Intl
Oct 19
SJO12:57 pmSan José Juan Santamaria Intl
8h 59m
1 stop
HRL10:56 pmHarlingen Valley Intl
$529
American Airlines
Oct 15
HRL8:03 pmHarlingen Valley Intl
17h 57m
2 stops
SJO1:00 pmSan José Juan Santamaria Intl
Oct 18
SJO1:05 pmSan José Juan Santamaria Intl
29h 31m
2 stops
HRL7:36 pmHarlingen Valley Intl
$534
American Airlines
May 15
HRL10:47 amHarlingen Valley Intl
11h 49m
1 stop
SJO9:36 pmSan José Juan Santamaria Intl
May 21
SJO11:59 pmSan José Juan Santamaria Intl
15h 26m
1 stop
HRL4:25 pmHarlingen Valley Intl
$546

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 May 4, 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 - SJO

HRLSJO

Harlingen Valley Intl

Thu 10/15

8:03 pm-1:00 pm

2 stops17h 57m

San José Juan Santamaria Intl

Mon 10/19

2:45 pm-7:36 pm

2 stops27h 51m

$529

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Thu 10/15

8:03 pm-1:00 pm

2 stops17h 57m

San José Juan Santamaria Intl

Sun 10/18

1:05 pm-7:36 pm

2 stops29h 31m

$534

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Fri 5/15

10:47 am-9:36 pm

1 stop11h 49m

San José Juan Santamaria Intl

Thu 5/21

11:59 pm-4:25 pm

1 stop15h 26m

$546

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Fri 5/15

2:51 pm-11:30 am

2 stops21h 39m

San José Juan Santamaria Intl

Thu 5/21

11:59 pm-4:25 pm

1 stop15h 26m

$589

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Thu 10/15

8:03 pm-1:58 pm

1 stop18h 55m

San José Juan Santamaria Intl

Mon 10/19

12:57 pm-10:56 pm

1 stop8h 59m

$596

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Thu 10/15

8:03 pm-1:58 pm

1 stop18h 55m

San José Juan Santamaria Intl

Sun 10/18

1:05 pm-10:16 am

2 stops20h 11m

$605
Quickest round-trip

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Thu 10/15

5:30 am-12:35 pm

1 stop8h 05m

San José Juan Santamaria Intl

Sun 10/18

1:05 pm-11:55 pm

1 stop9h 50m

$631

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Fri 5/15

6:55 am-7:00 pm

2 stops13h 05m

San José Juan Santamaria Intl

Thu 5/21

9:00 am-11:00 pm

2 stops13h 00m

$675

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Wed 6/3

5:20 pm-10:39 pm

1 stop6h 19m

San José Juan Santamaria Intl

Mon 6/8

12:30 am-7:49 pm

1 stop18h 19m

$684

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Wed 6/3

5:20 pm-10:00 pm

2 stops29h 40m

San José Juan Santamaria Intl

Tue 6/9

7:10 am-1:30 pm

2 stops29h 20m

$3,100

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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

6h 19m

Direct flights

None
The fastest flight from Harlingen to Costa Rica takes 6h 19m
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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