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Cheap flights from Harlingen to Costa Rica from $480

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen to Costa Rica departing on 11/16. 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.
Southwest Logo
6:20 am - 12:20 pm
HRL
-
SJO
6h 00m
1 stop
Southwest Logo
2:10 pm - 11:30 pm
SJO
-
HRL
9h 20m
1 stop
$480Southwest
Mon, Nov 16 - Fri, Nov 20
Southwest Logo
6:20 am - 12:20 pm
HRL
-
SJO
6h 00m
1 stop
Southwest Logo
1:20 pm - 10:50 am
SJO
-
HRL
21h 30m
2 stops
$504Southwest
Mon, Nov 16 - Fri, Nov 20
American Airlines Logo
4:02 pm - 1:39 pm
HRL
-
SJO
21h 37m
2 stops
American Airlines Logo
1:09 pm - 9:43 am
SJO
-
HRL
20h 34m
2 stops
$584American Airlines
Mon, Nov 16 - Fri, Nov 20
United Airlines Logo
5:10 am - 11:25 am
HRL
-
SJO
6h 15m
1 stop
United Airlines Logo
8:45 am - 3:34 pm
SJO
-
HRL
6h 49m
1 stop
$598United Airlines
Mon, Nov 9 - Thu, Nov 12
United Airlines Logo
5:05 am - 7:37 pm
HRL
-
SJO
15h 32m
1 stop
United Airlines Logo
1:25 pm - 9:52 pm
SJO
-
HRL
7h 27m
1 stop
$608United Airlines
Sun, Sep 27 - Thu, Oct 1
United Airlines Logo
5:10 am - 10:39 pm
HRL
-
SJO
18h 29m
1 stop
United Airlines Logo
7:55 am - 7:49 pm
SJO
-
HRL
10h 54m
1 stop
$848United Airlines
Wed, Jul 8 - Mon, Jul 13
Air Canada Logo
12:10 pm - 10:05 pm
HRL
-
SJO
33h 55m
2 stops
Air Canada Logo
8:35 am - 9:44 pm
SJO
-
HRL
37h 09m
2 stops
$1,234Air Canada
Mon, Nov 9 - Thu, Nov 12
Air Canada Logo
7:20 am - 10:00 pm
HRL
-
SJO
39h 40m
2 stops
Air Canada Logo
7:15 am - 9:54 pm
SJO
-
HRL
13h 39m
2 stops
$2,114Air Canada
Wed, Jul 8 - Mon, Jul 13

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United Airlines flights from Harlingen to Costa Rica

Our best United Airlines deals on Harlingen to Costa Rica flight tickets
United Airlines
Nov 9
HRL5:10 amHarlingen Valley Intl
6h 15m
1 stop
SJO11:25 amSan José Juan Santamaria Intl
Nov 12
SJO8:45 amSan José Juan Santamaria Intl
6h 49m
1 stop
HRL3:34 pmHarlingen Valley Intl
$598
United Airlines
Sep 27
HRL5:05 amHarlingen Valley Intl
15h 32m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
Oct 1
SJO1:25 pmSan José Juan Santamaria Intl
7h 27m
1 stop
HRL9:52 pmHarlingen Valley Intl
$608
United Airlines
Jul 8
HRL5:10 amHarlingen Valley Intl
18h 29m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Jul 13
SJO7:55 amSan José Juan Santamaria Intl
10h 54m
1 stop
HRL7:49 pmHarlingen Valley Intl
$848

Southwest flights from Harlingen to Costa Rica

Our best Southwest deals on Harlingen to Costa Rica flight tickets
Southwest
Nov 16
HRL6:20 amHarlingen Valley Intl
6h 00m
1 stop
SJO12:20 pmSan José Juan Santamaria Intl
Nov 20
SJO2:10 pmSan José Juan Santamaria Intl
9h 20m
1 stop
HRL11:30 pmHarlingen Valley Intl
$480
Southwest
Nov 16
HRL6:20 amHarlingen Valley Intl
6h 00m
1 stop
SJO12:20 pmSan José Juan Santamaria Intl
Nov 20
SJO1:20 pmSan José Juan Santamaria Intl
21h 30m
2 stops
HRL10:50 amHarlingen Valley Intl
$504

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 June 18, 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

Mon 11/16

6:20 am-12:20 pm

1 stop6h 00m

San José Juan Santamaria Intl

Fri 11/20

2:10 pm-11:30 pm

1 stop9h 20m

$480

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Mon 11/16

6:20 am-12:20 pm

1 stop6h 00m

San José Juan Santamaria Intl

Fri 11/20

1:20 pm-10:50 am

2 stops21h 30m

$504

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Mon 11/16

4:02 pm-1:39 pm

2 stops21h 37m

San José Juan Santamaria Intl

Fri 11/20

1:09 pm-9:43 am

2 stops20h 34m

$584
Quickest round-trip

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Mon 11/9

5:10 am-11:25 am

1 stop6h 15m

San José Juan Santamaria Intl

Thu 11/12

8:45 am-3:34 pm

1 stop6h 49m

$598

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Sun 9/27

5:05 am-7:37 pm

1 stop15h 32m

San José Juan Santamaria Intl

Thu 10/1

1:25 pm-9:52 pm

1 stop7h 27m

$608

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Wed 7/8

5:10 am-10:39 pm

1 stop18h 29m

San José Juan Santamaria Intl

Mon 7/13

7:55 am-7:49 pm

1 stop10h 54m

$848

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Mon 11/9

12:10 pm-10:05 pm

2 stops33h 55m

San José Juan Santamaria Intl

Thu 11/12

8:35 am-9:44 pm

2 stops37h 09m

$1,234

HarlingenSan José

HRL - SJO

HRLSJO

Harlingen Valley Intl

Wed 7/8

7:20 am-10:00 pm

2 stops39h 40m

San José Juan Santamaria Intl

Mon 7/13

7:15 am-9:54 pm

2 stops13h 39m

$2,114

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 00m

Direct flights

None
The fastest flight from Harlingen to Costa Rica takes 6h 00m
There are no direct flights from Harlingen to Costa Rica. There are no popular flight routes from Harlingen to Costa Rica.
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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.

Frequently asked questions about flying from Harlingen to Costa Rica

  • How do I get Price Alerts for flights from Harlingen to Costa Rica?

    Search flight deals from Harlingen to Costa Rica. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Harlingen to Costa Rica with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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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