HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Rica

$137+ Cheap flights from Irvine, CA to Costa Rica

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SJO
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Irvine to Costa Rica with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Irvine to Costa Rica

Keep the following information in mind while searching for Irvine to Costa Rica flight deals. Data was last updated September 15, 2025.

Round-trip from

$230
(Expedia)

One-way from

$137
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$401
From Irvine to Costa Rica
Search Deals
One-way flight from Irvine to Costa Rica
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Irvine to Costa Rica

Cheapest flights from Irvine to Costa Rica
Explore the most affordable flight options available from Irvine to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1312:09 amLAX - SJO
2 stops10h 21mMultiple Airlines
Mon 10/275:30 amSJO - LAX
1 stop16h 46mMultiple Airlines
Deal found 9/14$230
This eDestinos deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/275:07 pmLAX - SJO
2 stops17h 07mSpirit Airlines
Sat 10/411:37 amSJO - LAX
2 stops13h 19mSpirit Airlines
Deal found 9/14$237
This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1312:09 amLAX - SJO
2 stops10h 21mMultiple Airlines
Thu 10/165:30 amSJO - LAX
1 stop16h 46mMultiple Airlines
Deal found 9/14$243
This Orbitz deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:39 pmLAX - SJO
1 stop19h 40mMultiple Airlines
Sat 9/2712:19 pmSJO - LAX
2 stops21h 29mMultiple Airlines
Deal found 9/14$246
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:50 pmLAX - SJO
2 stops14h 24mSpirit Airlines
Tue 10/712:35 pmSJO - LAX
2 stops20h 42mSpirit Airlines
Deal found 9/14$248
This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2911:39 pmLAX - SJO
1 stop19h 40mMultiple Airlines
Thu 10/25:30 amSJO - LAX
1 stop16h 46mMultiple Airlines
Deal found 9/15$252
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1312:09 amLAX - SJO
2 stops10h 21mSpirit Airlines
Mon 10/2712:35 pmSJO - LAX
2 stops20h 42mSpirit Airlines
Deal found 9/14$255
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:50 pmLAX - SJO
2 stops14h 24mMultiple Airlines
Fri 10/313:05 pmSJO - LAX
1 stop8h 55mMultiple Airlines
Deal found 9/14$257
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1310:49 pmLAX - SJO
1 stop23h 24mVolaris Costa Rica
Mon 10/275:30 amSJO - LAX
1 stop16h 46mVolaris Costa Rica
Deal found 9/14$260
This Orbitz deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:39 pmLAX - SJO
1 stop13h 18mMultiple Airlines
Sat 9/2712:19 pmSJO - LAX
2 stops21h 29mMultiple Airlines
Deal found 9/14$262
This Orbitz deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2112:09 amLAX - SJO
2 stops10h 21mMultiple Airlines
Mon 10/275:30 amSJO - LAX
1 stop16h 46mMultiple Airlines
Deal found 9/15$264
This Orbitz deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:50 pmLAX - SJO
2 stops14h 24mMultiple Airlines
Thu 10/95:30 amSJO - LAX
1 stop16h 46mMultiple Airlines
Deal found 9/14$265

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine 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, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Irvine to Costa Rica that are best for you.

Fly from

Irvine

Fly to

Costa Rica

Route

Depart

Return

Price

Los AngelesLiberia

LAX - LIR

LAXLIR

Los Angeles

Wed 10/15

10:36 am-5:28 pm

Nonstop5h 52m

Liberia

Tue 10/21

10:00 am-2:53 pm

Nonstop5h 53m

$324

Los AngelesLiberia

LAX - LIR

LAXLIR

Los Angeles

Sat 1/10

11:00 pm-6:45 am

Nonstop5h 45m

Liberia

Thu 1/15

7:45 pm-11:27 pm

Nonstop5h 42m

$324

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Wed 10/29

4:58 pm-11:51 pm

Nonstop5h 53m

San José Juan Santamaria Intl

Wed 11/12

1:55 am-6:15 am

Nonstop6h 20m

$325

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Mon 11/10

4:45 pm-12:38 am

Nonstop5h 53m

San José Juan Santamaria Intl

Mon 11/17

1:55 am-6:15 am

Nonstop6h 20m

$325

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Mon 11/10

4:45 pm-12:38 am

Nonstop5h 53m

San José Juan Santamaria Intl

Sun 11/23

1:30 am-6:00 am

Nonstop6h 30m

$328

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Mon 11/10

12:52 am-4:40 pm

1 stop13h 48m

San José Juan Santamaria Intl

Wed 11/19

11:00 am-10:34 pm

1 stop13h 34m

$341

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Thu 11/13

11:05 am-8:19 am

1 stop19h 14m

San José Juan Santamaria Intl

Wed 11/26

4:08 am-12:02 pm

1 stop9h 54m

$341

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Thu 10/23

1:46 am-6:58 pm

1 stop16h 12m

San José Juan Santamaria Intl

Sun 11/9

5:49 am-10:44 pm

1 stop18h 55m

$341

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Sun 10/26

1:46 am-1:53 pm

1 stop11h 07m

San José Juan Santamaria Intl

Mon 11/3

6:07 pm-12:02 pm

1 stop19h 55m

$341

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Thu 10/30

4:58 pm-11:51 pm

Nonstop5h 53m

San José Juan Santamaria Intl

Tue 11/11

1:55 am-6:15 am

Nonstop6h 20m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 43 results
1
2
3
...
5

Best time to book a flight from Irvine to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Irvine with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Irvine to Costa Rica

What is the cheapest month to book a flight from Irvine to Costa Rica?

Currently, September is the cheapest month in which you can book a flight from Irvine to Costa Rica (average of $398). Flying from Irvine to Costa Rica in March is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IR9 to CR?

Find hourly flight availability from Irvine to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to Costa Rica as you normally would.

What is the cheapest day to fly from Irvine to Costa Rica?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Costa Rica. Price data was last updated on September 29, 2024.

Travelers seeking maximum savings on their Irvine to Costa Rica flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated September 15, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Irvine to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Avianca
6.7
Okay
2,435 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Irvine to Costa Rica flight route?

    Within the past month, 34 users have taken a look at flights from Irvine to Costa Rica.

  • How long is the flight from Irvine to Costa Rica?

    Airlines like Alaska Airlines, Copa Airlines, and United Airlines fly from Irvine to Costa Rica in about 5h 52m. The time it takes to get you to your destination can typically vary by up to 7h 56m. The distance between Irvine and Costa Rica is about 2626 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Irvine to Costa Rica one-way?

    $139 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $144 and $144, respectively.

  • What are the most reliable airlines from Irvine to Costa Rica?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Irvine to Costa Rica on time: American Airlines (92%), Alaska Airlines (92%), KLM (80%).

  • What are the cheapest flights from Irvine to Costa Rica?

    The cheapest flight price from Irvine to Costa Rica is $140. On average you can expect to pay $305. The most popular route, (Los Angeles - San José Juan Santamaria Intl), can usually be booked for $237.

  • Can I find deals for flights from Irvine to Costa Rica that include hotel bookings?

    Yes. In addition to deals on Irvine to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Costa Rica.

  • Can I find deals for business class flights from Irvine to Costa Rica?

    Yes. Cheapflights offers flight deals from Irvine to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Irvine to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Irvine to Costa Rica (average of $398). Flying from Irvine to Costa Rica in March is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Irvine to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Guatemala City flights
Los Angeles to San Salvador flights
Los Angeles to San José flights
Los Angeles to Panama City flights
San Francisco to San José flights
Los Angeles to Liberia flights
Ontario to San Salvador flights
San Francisco to Panama City flights
Los Angeles to Philip S.W.Goldson flights
San Francisco to San Salvador flights
Ontario to Guatemala City flights
San Francisco to Guatemala City flights
Ontario to San José flights
San Francisco to Liberia flights
Los Angeles to Managua flights
San Francisco to Managua flights
San Francisco to Philip S.W.Goldson flights
Burbank to Guatemala City flights
Las Vegas to San Salvador flights
Oakland to San José flights
Burbank to San Salvador flights
San Diego to San José flights
San Jose to San José flights
Burbank to San José flights
Las Vegas to Panama City flights
Ontario to Liberia flights
Reno to San José flights
Ontario to Philip S.W.Goldson flights
San Diego to Panama City flights
Santa Ana to San José flights
Los Angeles to San Pedro Sula flights
Sacramento to San José flights
San Jose to Guatemala City flights
Oakland to San Salvador flights
Ontario to Managua flights
Ontario to Panama City flights
Las Vegas to Guatemala City flights
Las Vegas to San José flights
San Francisco to San Pedro Sula flights
San Jose to Liberia flights
San Diego to Liberia flights
San Jose to Philip S.W.Goldson flights
Sacramento to Liberia flights
San Francisco to Coxen Hole flights
Santa Ana to San Salvador flights
San Jose to San Salvador flights
Oakland to Guatemala City flights
San Diego to San Salvador flights
Ontario to San Pedro Sula flights
Sacramento to Philip S.W.Goldson flights

Top 10 airlines flying from Irvine to Costa Rica

Discover the top 10 airlines that operate flights from Irvine to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$87Average$317FlexibilityNo cancel feeOn-time65%
Volaris El SalvadorCheapest$116Average$231FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$178Average$467FlexibilityNo cancel feeOn-time71%
Volaris Costa RicaCheapest$195Average$379FlexibilityNo cancel feeOn-timeN/A
VolarisCheapest$211Average$425FlexibilityNo cancel feeOn-time79%
DeltaCheapest$231Average$584FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$310Average$508FlexibilityNo cancel feeOn-time70%
Alaska AirlinesCheapest$334Average$535FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$334Average$645FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$383Average$685FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.