Cheap flights To La Unión (FON) from $145

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Cheap Flights to La Unión from $145 One Way, $290 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Thu, Nov 12 - Wed, Nov 18
SJO
Juan Santamaría Intl.
FON
Arenal
$290 Roundtrip, found 12 hours ago
$290
Roundtrip
found 12 hours ago
Select SANSA flight, departing Thu, Nov 12 from Juan Santamaría Intl. to Arenal, returning Wed, Nov 18, priced at $290 found 12 hours ago
Sun, Apr 26 - Mon, Apr 27
SJO
Juan Santamaría Intl.
FON
Arenal
$290 Roundtrip, found 3 days ago
$290
Roundtrip
found 3 days ago
Select World Ticket Ltd flight, departing Sun, Apr 26 from Juan Santamaría Intl. to Arenal, returning Mon, Apr 27, priced at $290 found 3 days ago
Thu, Nov 12 - Wed, Nov 18
SJO
Juan Santamaría Intl.
FON
Arenal
$291 Roundtrip, found 12 hours ago
$291
Roundtrip
found 12 hours ago
Select SANSA flight, departing Thu, Nov 12 from Juan Santamaría Intl. to Arenal, returning Wed, Nov 18, priced at $291 found 12 hours ago
Thu, Nov 12 - Wed, Nov 18
SJO
Juan Santamaría Intl.
FON
Arenal
$293 Roundtrip, found 12 hours ago
$293
Roundtrip
found 12 hours ago
Select SANSA flight, departing Thu, Nov 12 from Juan Santamaría Intl. to Arenal, returning Wed, Nov 18, priced at $293 found 12 hours ago
Sat, May 2 - Sat, May 9
SJO
Juan Santamaría Intl.
FON
Arenal
$294 Roundtrip, found 4 hours ago
$294
Roundtrip
found 4 hours ago
Select SANSA flight, departing Sat, May 2 from Juan Santamaría Intl. to Arenal, returning Sat, May 9, priced at $294 found 4 hours ago
Thu, Nov 12 - Wed, Nov 18
SJO
Juan Santamaría Intl.
FON
Arenal
$294 Roundtrip, found 12 hours ago
$294
Roundtrip
found 12 hours ago
Select SANSA flight, departing Thu, Nov 12 from Juan Santamaría Intl. to Arenal, returning Wed, Nov 18, priced at $294 found 12 hours ago
Wed, Apr 8 - Fri, Apr 10
SJO
Juan Santamaría Intl.
FON
Arenal
$295 Roundtrip, found 1 day ago
$295
Roundtrip
found 1 day ago
Select SANSA flight, departing Wed, Apr 8 from Juan Santamaría Intl. to Arenal, returning Fri, Apr 10, priced at $295 found 1 day ago
Sat, May 2 - Sat, May 9
SJO
Juan Santamaría Intl.
FON
Arenal
$296 Roundtrip, found 4 hours ago
$296
Roundtrip
found 4 hours ago
Select SANSA flight, departing Sat, May 2 from Juan Santamaría Intl. to Arenal, returning Sat, May 9, priced at $296 found 4 hours ago
Wed, Apr 8 - Fri, Apr 10
SJO
Juan Santamaría Intl.
FON
Arenal
$297 Roundtrip, found 1 day ago
$297
Roundtrip
found 1 day ago
Select SANSA flight, departing Wed, Apr 8 from Juan Santamaría Intl. to Arenal, returning Fri, Apr 10, priced at $297 found 1 day ago
Wed, Apr 8 - Fri, Apr 10
SJO
Juan Santamaría Intl.
FON
Arenal
$298 Roundtrip, found 1 day ago
$298
Roundtrip
found 1 day ago
Select SANSA flight, departing Wed, Apr 8 from Juan Santamaría Intl. to Arenal, returning Fri, Apr 10, priced at $298 found 1 day ago

La Unión Flight Information

Traveling To
La Unión
Destination Airport IATA Code
FON
Number of Airlines Serving
Airlines
SANSA, World Ticket Ltd
Flight Price
$290
Earliest Departing Flight
Latest Departing Flight

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La Unión economy flight packages

Price found within the past 48 hours. Click for updated prices.
Hotel Cielo Azul Resort
3.0-star property

Hotel Cielo Azul Resort

May 15 - May 19

4 night stay

Orlando (MCO) to San José (SJO)

Volaris Costa Rica • Roundtrip • Coach
Save 100% on your flight
Price was $854, price is now $477 per person
$477
per person
found 6 hours ago
The Springs Resort and Spa at Arenal
5.0-star property

The Springs Resort and Spa at Arenal

May 15 - May 22

7 night stay

Boston (BOS) to San José (SJO)

American Airlines • Non-stop roundtrip • Coach
Price was $3,393, price is now $1,701 per person
$1,701
per person
found 1 day ago
Si Como No Resort, Spa and Wildlife Refuge
3.5-star property

Si Como No Resort, Spa and Wildlife Refuge

May 15 - May 23

8 night stay

New York (JFK) to San José (SJO)

JetBlue Airways • Coach

San José (SJO) to New York (JFK)

American Airlines • Coach
Price was $2,033, price is now $1,104 per person
$1,104
per person
found 12 hours ago
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La Unión premium economy flight packages

Price found within the past 48 hours. Click for updated prices.
Country Inn & Suites by Radisson, San Jose Aeropuerto, Costa Rica
3.5-star property

Country Inn & Suites by Radisson, San Jose Aeropuerto, Costa Rica

8.4/10 Very Good! (3,131 reviews)

May 21 - May 25

4 night stay

New York (NYC) to San José (SJO)

Spirit Airlines • Non-stop • PremiumEconomy

San José (SJO) to New York (NYC)

JetBlue Airways • Non-stop • PremiumEconomy
Price was $1,103, price is now $958 per person
$958
per person
found 11 hours ago
Room was clean, staff helpful, good breakfast and pool, room minimally furnished could use updating.

Reviewed on Jan 23, 2026

Auténtico Hotel
3.0-star property

Auténtico Hotel

8.4/10 Very Good! (658 reviews)

May 21 - May 25

4 night stay

New York (NYC) to San José (SJO)

Spirit Airlines • Non-stop • PremiumEconomy

San José (SJO) to New York (NYC)

JetBlue Airways • Non-stop • PremiumEconomy
Price was $1,217, price is now $975 per person
$975
per person
found 11 hours ago
The front desk lady was really nice.. They didn’t have the room i booked for so they upgraded us to the Best room there.. absolutely loved it. Buffet breakfast was great as well.. close to downtown. Taxi and uber are very affordable and available at any time right outside the door. Friendly staffing.. loved the stay. Would definitely stay there again.

Reviewed on Feb 8, 2022

Hotel Luisiana
3.5-star property

Hotel Luisiana

8.4/10 Very Good! (1,000 reviews)

May 21 - May 25

4 night stay

New York (NYC) to San José (SJO)

Spirit Airlines • Non-stop • PremiumEconomy

San José (SJO) to New York (NYC)

JetBlue Airways • Non-stop • PremiumEconomy
Price was $1,140, price is now $984 per person
$984
per person
found 11 hours ago
It’s decent stay for a night

Reviewed on Aug 21, 2023

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La Unión business class flight packages

Price found within the past 48 hours. Click for updated prices.
Crocs Resort & Casino
4.5-star property

Crocs Resort & Casino

8.6/10 Excellent! (1,004 reviews)

May 22 - May 28

6 night stay

Los Angeles (LAX) to San José (SJO)

Avianca • Non-stop • BusinessClass

San José (SJO) to Los Angeles (LAX)

JetBlue Airways • Non-stop • BusinessClass
Price was $1,904, price is now $1,542 per person
$1,542
per person
found 1 hour ago
The staff, the sportsbar, the Pura Vida vibes... all excellent and da food too!!

Reviewed on Nov 26, 2025

Hotel Lomas del Volcán
4.0-star property

Hotel Lomas del Volcán

9.6/10 Exceptional! (1,000 reviews)

May 22 - May 28

6 night stay

Los Angeles (LAX) to San José (SJO)

Avianca • Non-stop • BusinessClass

San José (SJO) to Los Angeles (LAX)

JetBlue Airways • Non-stop • BusinessClass
Price was $2,510, price is now $1,730 per person
$1,730
per person
found 1 hour ago
We lived the views and how friendly and attentive staff is here. Highly recommend and would definitely stay here again

Reviewed on Sep 9, 2025

Parador Nature Resort and Spa
5.0-star property

Parador Nature Resort and Spa

9.8/10 Exceptional! (1,000 reviews)

May 22 - May 28

6 night stay

Los Angeles (LAX) to San José (SJO)

Avianca • Non-stop • BusinessClass

San José (SJO) to Los Angeles (LAX)

JetBlue Airways • Non-stop • BusinessClass
Price was $2,441, price is now $1,875 per person
$1,875
per person
found 1 hour ago
This resort was truly the best of the best!! From the moment we checked in - we were blown away and had the best vacation ever. The staff is incredibly friendly and helpful, the grounds are beautiful - so much to do and see. Our room was so spacious and comfortable. We hope to return one day…it was the best!!

Reviewed on Jun 28, 2025

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La Unión

Get the absolute lowest prices on flights to La Unión by shopping with Orbitz. Orbitz is the most efficient travel planner around, allowing you to search, compare and book discount domestic and international flights fast. With cutting-edge mobile tools and access to frequent flier rewards programs, we have everything you need for both your routine and holiday excursions.

Book Your Flight To La Unión Using Your Mobile Device

New mobile app tools enable those with hand-held devices to scout out the best bargains and to secure tickets from any location. If you have an iPhone, iPad or Android device, you may take advantage of special discounts, only available to mobile device customers, when you book hotel rooms or car rentals on the same day as booking La Unión flights.

Avoid Check-In Hassles When Traveling On Flights to La Unión

Orbitz also provides an array of resources that can help you eliminate most check-in hassles. Detailed baggage information is continually available for La Unión flights. Mobile apps can also be used to share travel itineraries with family members or business associates.

Keeping Everyone Up To Date

When you download the free Orbitz mobile phone app, you can get regular and free flight updates. These will keep you informed of important scheduling changes. Updates can even be sent to several contacts, helping to keep everyone current on anticipated arrival times and all other relevant flight details.

Orbitz makes traveling on a budget very easy to do. We provide everything you need to plan your ideal trip from start to finish. Getting there and back again is a snap when you book your La Unión flight using Orbitz.

Frequently asked questions

Which airlines fly to La Unión?
Choose from 20 airlines that operate in and out of Tambor Airport (TMU) and get set to explore this unique city. Score the best deals when you book early with one of these carriers:

  • Costa Rica Green Airways - 105 flights to La Unión per month
  • SANSA Regional - 87 flights to La Unión per month

How much is a flight to La Unión?
Travelers from near and far landed round-trip bargains ranging from $290 to $298 this week. Kicking off your journey from San José (SJO)? The most affordable one-way prices were just $145.
How to book the cheapest flight to La Unión?
Landing cheap flights to La Unión is as simple as booking your ticket with Orbitz. But if you'd like to make sure you're nabbing the best flight deals around, here are some suggestions to keep in mind:

  • Consider departing from or arriving at alternative airports to increase your savings. Enter your preferred departure and arrival points in the form fields, then click on the 'Nearby airports' function below. It will list your options, if any.
  • Also, click on the 'Show flexible dates' option and you'll see the prices for days around your selected departure. You may be able to score cheaper flight deals if you're flexible with your schedule.
  • To fine tune your results, click on 'Show options.' You can search based on airlines, seating class, and nonstop and refundable flights. You can also select your preferred flight times under 'Sort & Filter' to the left.
  • Book as soon as you've figured out your travel dates. While it does happen occasionally, airfares rarely get more affordable as your departure date gets closer.
  • Think about combining your hotels, flights and car rentals into a package deal to make your budget go even further.
  • Flying during busier seasons can mean costly airfares. Try to travel outside of popular dates, such as school breaks, Thanksgiving and Easter.

What is the best time to book a flight to La Unión?
Generally speaking, January is the ideal time to purchase your airfare. This is followed by February and August. Bear this in mind while you hunt for a cheap flight to La Unión.
What day of the week is the cheapest to book a flight to La Unión?
Make a booking on a Tuesday, Wednesday or Saturday. Generally, these are the cheapest days of the week to purchase seats to La Unión. The getaway of your dreams starts with an unbeatable flight deal!
What is the cheapest day of the week to fly to La Unión?
Everyone enjoys saving money, so think about setting off earlier in the week for cheap flights to La Unión. Orbitz data from 2020 shows you can secure the best prices on flights taking off on Mondays. Tuesday is the next cheapest day, while Saturdays are the costliest. Many people like to start their vacation at the end of the week, so leave those Saturdays for checking in with friends.
What is the cheapest month to fly to La Unión?
According to Orbitz data, you'll want to fly out in August. This is generally the best month to score cheap flights to La Unión. It's worth keeping in mind that the most expensive time to depart is during the month of June.
Which airlines allow free cancellation?
Flexibility is important, that's why Orbitz lets you search for flights that won't hit you with a fee for any amendments. Add your departure and arrival destinations, then click on "Filter by flexible change policies." We'll show you options that include free cancellation and no change fees.
What do I need for the flight to La Unión?
Whether you're familiar with flying or you're new to the skies, it's always great to be prepared on your journey. Here are several tips and things to take into consideration:

  • Travel documents such as e-tickets and identification are a must. To avoid any last-minute delays when you check in, make certain your booking is under the same name, gender and birth date as indicated on your government-issued ID.
  • Stuff your carry-on bag with snacks and things to keep you busy and watch time whiz by on your medium-haul flight. If you can, join the airport's Wi-Fi and download your favorite playlist or podcast to your phone or tablet before take off.
  • Plane cabins can often get quite cold. Even if you're flying during the peak of summer, be sure to take an extra warm layer just in case.

How do I get cheap first-class/business deals to La Unión?
There are ways of booking first or business-class airfares to La Unión that won't burn a hole through your budget. Claim a seat at the front of the plane for less with these helpful tips:

  • Flexibility is essential. By being open to a range of travel dates, you'll have a better chance of landing a great deal on business or first-class airfares.
  • Search for a low-cost carrier that has seats in business class. They often come with more legroom and a glass of bubbly — and a more appealing price.
  • Bid for an upgrade. Some carriers hold online auctions that let you put down a price for a seat up the front. You can also try upgrading with points earned through a rewards program.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.