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$145+ 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SJO
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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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 April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$230
(CheapOair)

One-way from

$145
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$446
Provider with most accurate pricing for Los Angeles-San José Juan Santamaria Intl flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-San José Juan Santamaria Intl flights.
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From Irvine to Costa Rica
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One-way flight from Irvine to Costa Rica
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Highest demand for flights based on searches. 17% potential increase in price ($96 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 4, 2025.

This CheapOair deal was found by Cheapflights users on 4/3. 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.
Sun 8/2410:44 pmLAX - SJO
1 stop7h 29mVolaris Costa Rica
Sat 8/302:42 pmSJO - LAX
1 stop7h 32mVolaris Costa Rica
Deal found 4/3$229
This CheapOair deal was found by Cheapflights users on 4/3. 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.
Mon 5/1911:04 pmLAX - SJO
1 stop7h 24mMultiple Airlines
Fri 5/2311:15 amSJO - LAX
1 stop24h 45mMultiple Airlines
Deal found 4/3$230
This CheapOair deal was found by Cheapflights users on 4/2. 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.
Thu 6/512:19 pmLAX - SJO
1 stop20h 55mVolaris El Salvador
Mon 6/1611:15 amSJO - LAX
1 stop24h 24mVolaris El Salvador
Deal found 4/2$254
This Cheapflightsfares deal was found by Cheapflights users on 4/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/285:30 amLAX - SJO
2 stops17h 20mSpirit Airlines
Sat 5/312:23 pmSJO - LAX
2 stops19h 33mSpirit Airlines
Deal found 4/4$291
This Cheapflightsfares deal was found by Cheapflights users on 4/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1412:30 amLAX - SJO
1 stop9h 45mAvianca
Thu 5/228:00 pmSJO - LAX
2 stops17h 00mAvianca
Deal found 4/4$335
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/135:15 pmLAX - SJO
Nonstop5h 37mAlaska Airlines
Tue 5/201:06 amSJO - LAX
Nonstop6h 23mAlaska Airlines
Deal found 4/3$352
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2611:50 pmLAX - LIR
Nonstop5h 30mAlaska Airlines
Sun 9/2811:20 amLIR - LAX
Nonstop5h 47mAlaska Airlines
Deal found 4/3$438
This American Airlines deal was found by Cheapflights users on 4/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2712:58 amLAX - LIR
1 stop11h 07mAmerican Airlines
Fri 5/212:25 pmLIR - LAX
1 stop11h 53mAmerican Airlines
Deal found 4/3$439
This United Airlines deal was found by Cheapflights users on 4/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/912:56 amLAX - LIR
1 stop8h 04mUnited Airlines
Tue 6/1711:05 amLIR - LAX
1 stop10h 22mUnited Airlines
Deal found 4/3$462
This Southwest deal was found by Cheapflights users on 4/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2511:40 pmLAX - LIR
1 stop11h 50mSouthwest
Mon 5/52:05 pmLIR - LAX
2 stops18h 35mSouthwest
Deal found 4/3$511
This JetBlue deal was found by Cheapflights users on 4/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/48:45 pmLAX - LIR
1 stop15h 46mJetBlue
Thu 11/133:55 pmLIR - LAX
1 stop19h 25mJetBlue
Deal found 4/3$529
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/223:00 pmLAX - LIR
1 stop14h 06mWestJet
Tue 5/271:25 pmLIR - LAX
2 stops22h 28mWestJet
Deal found 4/3$539

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 April 4, 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 AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Mon 5/19

11:04 pm-7:28 am

1 stop7h 24m

San José Juan Santamaria Intl

Fri 5/23

11:15 am-11:00 am

1 stop24h 45m

$230

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Thu 6/5

12:19 pm-10:14 am

1 stop20h 55m

San José Juan Santamaria Intl

Mon 6/16

11:15 am-10:39 am

1 stop24h 24m

$254

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Sat 5/17

11:04 pm-7:28 am

Nonstop7h 24m

San José Juan Santamaria Intl

Thu 6/12

2:37 pm-9:11 pm

Nonstop7h 34m

$266

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Wed 4/30

5:30 am-11:50 pm

2 stops17h 20m

San José Juan Santamaria Intl

Sun 5/4

12:55 am-5:33 pm

2 stops17h 38m

$285

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Wed 5/14

12:30 am-11:15 am

1 stop9h 45m

San José Juan Santamaria Intl

Thu 5/22

8:00 pm-12:00 pm

2 stops17h 00m

$335

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Tue 5/13

5:15 pm-11:52 pm

Nonstop5h 37m

San José Juan Santamaria Intl

Tue 5/20

1:06 am-6:29 am

Nonstop6h 23m

$352

Los AngelesSan José

LAX - SJO

LAXSJO

Los Angeles

Tue 4/29

11:26 pm-5:57 am

Nonstop5h 31m

San José Juan Santamaria Intl

Sat 5/31

7:25 am-12:43 pm

Nonstop6h 18m

$381

Los AngelesLiberia

LAX - LIR

LAXLIR

Los Angeles

Sat 4/26

11:50 pm-6:20 am

Nonstop5h 30m

Liberia

Sun 9/28

11:20 am-4:07 pm

Nonstop5h 47m

$438

Los AngelesLiberia

LAX - LIR

LAXLIR

Los Angeles

Sun 4/27

12:58 am-1:05 pm

1 stop11h 07m

Liberia

Fri 5/2

12:25 pm-11:18 pm

1 stop11h 53m

$439

Los AngelesLiberia

LAX - LIR

LAXLIR

Los Angeles

Mon 6/9

12:56 am-10:00 am

1 stop8h 04m

Liberia

Tue 6/17

11:05 am-8:27 pm

1 stop10h 22m

$462

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 37 results
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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 $555). 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 April 4, 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 Monday evenings 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.

Weekly flight availability from Irvine to Costa Rica

Explore weekly flight availability from Irvine to Costa Rica. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 4, 2025.

The most flights from IR9 to CR0 are scheduled on a Thursday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

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 April 4, 2025.
See what other customers who have flown with Delta, Alaska Airlines and Southwest from Irvine to Costa Rica have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Alaska Airlines
8.0
Very good
9,833 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Southwest
8.0
Very good
4,276 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.6
Good
1,401 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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, 45 users have taken a look at flights from Irvine to Costa Rica.

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

    $145 is the cheapest one-way deal found within the past few days, from Volaris Costa Rica. You may also be able to find cheap deals on Avianca and Spirit Airlines, with prices starting from $149 and $150, 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: United Airlines (100%), KLM (91%), Air France (90%).

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

    The cheapest flight price from Irvine to Costa Rica is $158. On average you can expect to pay $845. The most popular route, (Los Angeles - San José Juan Santamaria Intl), can usually be booked for $182.

  • 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 $555). 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

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Alternative routes for Irvine to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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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 April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Volaris El SalvadorCheapest$112Average$222FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$131Average$358FlexibilityNo cancel feeOn-time62%
DeltaCheapest$144Average$616FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$169Average$297FlexibilityNo cancel feeOn-time65%
Volaris Costa RicaCheapest$182Average$383FlexibilityNo cancel feeOn-timeN/A
VolarisCheapest$185Average$419FlexibilityNo cancel feeOn-time79%
AviancaCheapest$240Average$421FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$252Average$661FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$331Average$552FlexibilityNo cancel feeOn-time75%
Copa AirlinesCheapest$337Average$519FlexibilityNo cancel feeOn-time70%

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