$166+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SJO
May 5 — May 121
Round-trip
1 adult, Economy
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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
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Cheapest flights from Irvine to Costa RicaExplore 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 5, 2026.
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 5, 2026.
This Viva 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/293:00 pm
LAX
- SJO
1 stop9h 20m
Viva
Fri 6/52:20 am
SJO
- LAX
1 stop14h 05m
Viva
Deal found 4/4![Viva logo]()
$339
This FlightHub deal was found by Cheapflights users on 3/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Mon 6/19:35 am
SJO
- LAX
2 stops24h 28m
Frontier
Deal found 3/31![Frontier logo]()
$368
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Fri 5/299:35 am
SJO
- LAX
2 stops34h 57m
Frontier
Deal found 4/1![Frontier logo]()
$372
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Thu 5/289:35 am
SJO
- LAX
2 stops24h 28m
Frontier
Deal found 4/1![Frontier logo]()
$377
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Sat 5/309:35 am
SJO
- LAX
2 stops24h 28m
Frontier
Deal found 4/1![Frontier logo]()
$382
This Expedia deal was found by Cheapflights users on 4/1. 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.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Multiple Airlines
Thu 5/281:55 pm
SJO
- LAX
1 stop19h 32m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$386
This Orbitz deal was found by Cheapflights users on 4/5. 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.
Fri 4/1010:51 pm
LAX
- SJO
1 stop9h 10m
Multiple Airlines
Sun 4/2611:59 pm
SJO
- LAX
1 stop15h 10m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$387
This Trip.com deal was found by Cheapflights users on 3/31. 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.
Fri 4/1010:51 pm
LAX
- SJO
1 stop9h 10m
Multiple Airlines
Mon 4/209:40 am
SJO
- LAX
1 stop13h 30m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$394
This Expedia deal was found by Cheapflights users on 3/31. 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.
Tue 5/2611:21 pm
LAX
- SJO
1 stop31h 58m
Multiple Airlines
Wed 6/31:55 pm
SJO
- LAX
1 stop19h 32m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$397
This Viva deal was found by Cheapflights users on 4/1. 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2812:05 am
LAX
- SJO
1 stop24h 10m
Viva
Fri 7/32:20 am
SJO
- LAX
1 stop21h 15m
Viva
Deal found 4/1![Viva logo]()
$398
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.
Wed 4/295:30 am
LAX
- SJO
2 stops29h 03m
Spirit Airlines
Mon 5/41:00 pm
SJO
- LAX
2 stops34h 19m
Spirit Airlines
Deal found 4/3![Spirit Airlines logo]()
$399
This Expedia deal was found by Cheapflights users on 4/1. 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.
Wed 7/110:37 am
LAX
- LIR
Nonstop5h 52m
Alaska Airlines
Mon 7/69:03 am
LIR
- LAX
Nonstop5h 52m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$403
Best flights from Irvine to Costa RicaDiscover carefully curated flight deals from Irvine to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 5, 2026.
Discover carefully curated flight deals from Irvine to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 5, 2026.
This Viva 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1912:05 am
LAX
- SJO
1 stop24h 10m
Viva
Sat 6/272:20 am
SJO
- LAX
1 stop21h 15m
Viva
Deal found 4/2![Viva logo]()
$432
This Avianca deal was found by Cheapflights users on 3/31. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:00 am
LAX
- SJO
1 stop9h 30m
Avianca
Sat 5/23:10 pm
SJO
- LAX
1 stop8h 00m
Avianca
Deal found 3/31![Avianca logo]()
$476
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:00 pm
LAX
- SJO
Nonstop5h 45m
Alaska Airlines
Sat 5/912:55 am
SJO
- LAX
Nonstop6h 38m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$488
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:41 pm
LAX
- SJO
Nonstop5h 49m
United Airlines
Sun 5/106:00 am
SJO
- LAX
Nonstop6h 21m
United Airlines
Deal found 4/4![United Airlines logo]()
$488
This Southwest deal was found by Cheapflights users on 3/30. 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 5/15:30 pm
LAX
- LIR
2 stops18h 45m
Southwest
Thu 5/72:10 pm
LIR
- LAX
1 stop10h 20m
Southwest
Deal found 3/30![Southwest logo]()
$497
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:10 pm
LAX
- LIR
2 stops20h 50m
Delta
Thu 9/241:25 pm
LIR
- LAX
2 stops22h 45m
Delta
Deal found 4/4![Delta logo]()
$621
This Viva 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:10 pm
LAX
- SJO
1 stop10h 05m
Viva
Fri 6/122:20 am
SJO
- LAX
1 stop14h 05m
Viva
Deal found 4/3![Viva logo]()
$433
This Viva deal was found by Cheapflights users on 3/31. 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:05 am
LAX
- SJO
1 stop24h 10m
Viva
Sat 7/182:20 am
SJO
- LAX
1 stop21h 15m
Viva
Deal found 3/31![Viva logo]()
$437
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.
Sat 4/1810:41 pm
LAX
- SJO
Nonstop5h 49m
United Airlines
Sat 4/256:00 am
SJO
- LAX
Nonstop6h 21m
United Airlines
Deal found 4/3![United Airlines logo]()
$488
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:00 pm
LAX
- SJO
Nonstop5h 45m
Alaska Airlines
Sun 5/1012:55 am
SJO
- LAX
Nonstop6h 38m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$488
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:15 pm
LAX
- SJO
1 stop11h 55m
Southwest
Tue 5/199:00 am
SJO
- LAX
2 stops14h 30m
Southwest
Deal found 4/2![Southwest logo]()
$509
This Southwest deal was found by Cheapflights users on 3/31. 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.
Sun 5/179:40 pm
LAX
- LIR
2 stops14h 35m
Southwest
Fri 5/222:10 pm
LIR
- LAX
2 stops10h 10m
Southwest
Deal found 3/31![Southwest logo]()
$523
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.
Fri 5/15:00 pm
LAX
- SJO
Nonstop5h 45m
Alaska Airlines
Tue 5/512:55 am
SJO
- LAX
Nonstop6h 38m
Alaska Airlines
Deal found 4/3![Alaska Airlines logo]()
$528
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/224:40 pm
LAX
- SJO
Nonstop5h 53m
Alaska Airlines
Mon 5/2512:53 am
SJO
- LAX
Nonstop6h 30m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$528
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:21 pm
LAX
- LIR
1 stop13h 29m
United Airlines
Sun 5/314:05 pm
LIR
- LAX
Nonstop6h 00m
United Airlines
Deal found 4/2![United Airlines logo]()
$606
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.
Wed 4/295:00 pm
LAX
- SJO
Nonstop5h 45m
Alaska Airlines
Sun 5/312:55 am
SJO
- LAX
Nonstop6h 38m
Alaska Airlines
Deal found 4/3![Alaska Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 6/2412:51 am
LAX
- LIR
1 stop7h 59m
United Airlines
Mon 6/2911:10 am
LIR
- LAX
1 stop13h 28m
United Airlines
Deal found 3/30![United Airlines logo]()
$610
This Southwest deal was found by Cheapflights users on 3/30. 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 6/266:20 pm
LAX
- LIR
2 stops15h 30m
Southwest
Sat 7/112:30 pm
LIR
- LAX
1 stop9h 55m
Southwest
Deal found 3/30![Southwest logo]()
$619
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.
Mon 6/298:20 pm
LAX
- LIR
2 stops15h 50m
Southwest
Tue 7/72:10 pm
LIR
- LAX
2 stops18h 00m
Southwest
Deal found 4/3![Southwest logo]()
$619
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.
Sun 6/2812:51 am
LAX
- LIR
1 stop7h 59m
United Airlines
Tue 7/73:27 pm
LIR
- LAX
1 stop9h 11m
United Airlines
Deal found 4/3![United Airlines logo]()
$639
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1611:40 pm
LAX
- LIR
1 stop12h 30m
Southwest
Thu 7/92:10 pm
LIR
- LAX
2 stops19h 05m
Southwest
Deal found 4/2![Southwest logo]()
$629
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 7/248:20 pm
LAX
- LIR
2 stops13h 30m
Southwest
Tue 7/282:10 pm
LIR
- LAX
2 stops18h 00m
Southwest
Deal found 4/3![Southwest logo]()
$703
This Southwest deal was found by Cheapflights users on 4/1. 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.
Wed 7/229:55 pm
LAX
- LIR
2 stops14h 15m
Southwest
Thu 7/302:10 pm
LIR
- LAX
2 stops11h 15m
Southwest
Deal found 4/1![Southwest logo]()
$723
Last-minute flights from Irvine to Costa RicaDiscover last-minute flight deals from Irvine to Costa Rica. Data last updated April 5, 2026 and is based on user searches.
Discover last-minute flight deals from Irvine to Costa Rica. Data last updated April 5, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 4/5. 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.
Fri 4/1010:51 pm
LAX
- SJO
1 stop9h 10m
Multiple Airlines
Sun 4/2611:59 pm
SJO
- LAX
1 stop15h 10m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$387
This Trip.com deal was found by Cheapflights users on 3/31. 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.
Fri 4/1010:51 pm
LAX
- SJO
1 stop9h 10m
Multiple Airlines
Mon 4/209:40 am
SJO
- LAX
1 stop13h 30m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$394
This Orbitz deal was found by Cheapflights users on 4/5. 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.
Fri 4/1010:51 pm
LAX
- SJO
1 stop9h 10m
Multiple Airlines
Sat 4/253:10 pm
SJO
- LAX
1 stop8h 00m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$403
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.
Wed 4/295:30 am
LAX
- SJO
2 stops29h 03m
Spirit Airlines
Mon 5/41:00 pm
SJO
- LAX
2 stops34h 19m
Spirit Airlines
Deal found 4/3![Spirit Airlines logo]()
$399
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:36 pm
LAX
- LIR
1 stop15h 04m
JetBlue
Fri 5/81:00 pm
LIR
- LAX
1 stop10h 30m
JetBlue
Deal found 4/3![JetBlue logo]()
$444
This FlightHub deal was found by Cheapflights users on 3/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Mon 6/19:35 am
SJO
- LAX
2 stops24h 28m
Frontier
Deal found 3/31![Frontier logo]()
$368
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Fri 5/299:35 am
SJO
- LAX
2 stops34h 57m
Frontier
Deal found 4/1![Frontier logo]()
$372
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Thu 5/289:35 am
SJO
- LAX
2 stops24h 28m
Frontier
Deal found 4/1![Frontier logo]()
$377
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Sat 5/309:35 am
SJO
- LAX
2 stops24h 28m
Frontier
Deal found 4/1![Frontier logo]()
$382
This Expedia deal was found by Cheapflights users on 4/1. 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.
Tue 5/1911:21 pm
LAX
- SJO
1 stop31h 58m
Multiple Airlines
Thu 5/281:55 pm
SJO
- LAX
1 stop19h 32m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$386
This Expedia deal was found by Cheapflights users on 3/31. 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.
Tue 5/2611:21 pm
LAX
- SJO
1 stop31h 58m
Multiple Airlines
Wed 6/31:55 pm
SJO
- LAX
1 stop19h 32m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$397
This Viva 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/293:00 pm
LAX
- SJO
1 stop9h 20m
Viva
Fri 6/52:20 am
SJO
- LAX
1 stop14h 05m
Viva
Deal found 4/4![Viva logo]()
$339
One-way flights from Irvine to Costa RicaSearch for one-way flight options from Irvine to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 5, 2026.
Search for one-way flight options from Irvine to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 5, 2026.
This Viva deal was found by Cheapflights users on 3/31. 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:00 pm
LAX
- SJO
1 stop9h 20m
Viva
Deal found 3/31![Viva logo]()
$166
This Viva 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:00 pm
LAX
- SJO
1 stop10h 15m
Viva
Deal found 4/3![Viva logo]()
$167
This Travelocity deal was found by Cheapflights users on 3/31. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Deal found 3/31![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Wed 5/2711:21 pm
LAX
- SJO
1 stop31h 58m
Frontier
Deal found 3/31![Frontier logo]()
$170
This CheapOair deal was found by Cheapflights users on 4/1. 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.
Wed 4/295:30 am
LAX
- SJO
2 stops29h 03m
Spirit Airlines
Deal found 4/1![Spirit Airlines logo]()
$173
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.
Wed 4/2911:36 pm
LAX
- SJO
2 stops34h 57m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$174
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:00 am
LAX
- SJO
1 stop14h 14m
JetBlue
Deal found 4/3![JetBlue logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Sat 5/25:30 am
LAX
- SJO
2 stops29h 03m
Spirit Airlines
Deal found 3/31![Spirit Airlines logo]()
$177
This Viva deal was found by Cheapflights users on 3/31. 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 Viva is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/153:00 pm
LAX
- SJO
1 stop9h 20m
Viva
Deal found 3/31![Viva logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Fri 4/1711:35 pm
LAX
- SJO
2 stops34h 58m
Spirit Airlines
Deal found 3/31![Spirit Airlines logo]()
$182
This JetBlue deal was found by Cheapflights users on 4/1. 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 5/57:00 am
LAX
- SJO
1 stop14h 14m
JetBlue
Deal found 4/1![JetBlue logo]()
$184
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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.
Fri 4/176:13 pm
LAX
- LIR
1 stop18h 30m
Sun Country Air
Deal found 3/31![Sun Country Air logo]()
$189
Find 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 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (Viva) |
One-way from | $166 (Viva) |
Popular in | December |
Cheapest in | October |
Average price | $479 |
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 5, 2026.
Use the filters below to find and compare flights from Irvine to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Fri 6/19
12:05 am-1:15 am
1 stop24h 10m
San José Juan Santamaria Intl
Sat 6/27
2:20 am-10:35 pm
1 stop21h 15m
$432
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Fri 6/5
2:10 pm-1:15 am
1 stop10h 05m
San José Juan Santamaria Intl
Fri 6/12
2:20 am-3:25 pm
1 stop14h 05m
$433
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Thu 7/2
12:05 am-1:15 am
1 stop24h 10m
San José Juan Santamaria Intl
Sat 7/18
2:20 am-10:35 pm
1 stop21h 15m
$437
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Thu 4/23
1:00 am-11:30 am
1 stop9h 30m
San José Juan Santamaria Intl
Sat 5/2
3:10 pm-10:10 pm
1 stop8h 00m
$476
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Sat 5/2
5:00 pm-11:45 pm
Nonstop5h 45m
San José Juan Santamaria Intl
Sat 5/9
12:55 am-6:33 am
Nonstop6h 38m
$488
Quickest round-trip
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Fri 5/1
10:41 pm-5:30 am
Nonstop5h 49m
San José Juan Santamaria Intl
Sun 5/10
6:00 am-11:21 am
Nonstop6h 21m
$488
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Sat 4/18
10:41 pm-5:30 am
Nonstop5h 49m
San José Juan Santamaria Intl
Sat 4/25
6:00 am-11:21 am
Nonstop6h 21m
$488
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Wed 5/6
5:00 pm-11:45 pm
Nonstop5h 45m
San José Juan Santamaria Intl
Sun 5/10
12:55 am-6:33 am
Nonstop6h 38m
$488
Los AngelesLiberia
LAX - LIR
LAXLIR
Los Angeles Los Angeles
Fri 5/1
5:30 pm-1:15 pm
2 stops18h 45m
Liberia
Thu 5/7
2:10 pm-11:30 pm
1 stop10h 20m
$497
Los AngelesSan José
LAX - SJO
LAXSJO
Los Angeles Los Angeles
Tue 5/12
11:15 pm-12:10 pm
1 stop11h 55m
San José Juan Santamaria Intl
Tue 5/19
9:00 am-10:30 pm
2 stops14h 30m
$509
Showing 1-10 of 44 resultsSorted by cheapest first
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.
LAX-SJO
LAX-LIR
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
IR9-CR0
LAX-SJO
LAX-LIR
What is the cheapest month to book a flight from Irvine to Costa Rica?
Currently, May is the cheapest month in which you can book a flight from Irvine to Costa Rica (average of $153). Flying from Irvine to Costa Rica in December is currently the most expensive (average of $291). 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 5, 2026.
It’s optimal to fly from Irvine to Costa Rica at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the afternoon.
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 April 4, 2026.
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. Wednesday at noon 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 5, 2026.
The most flights from IR9 to CR0 are scheduled on a Friday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
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 5, 2026.
See what other customers who have flown with Alaska Airlines,Volaris Costa Rica, andUnited 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.
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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.
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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.
Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Irvine to Costa Rica by cabin class
Find flights from Irvine to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Irvine and Costa Rica flights
Browse other Irvine and Costa Rica flight options. Last updated on April 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Irvine to Costa Rica flights
Consider these flights traveling from Irvine to Costa Rica.
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 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$187 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$116 | Average$206 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$160 | Average$344 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$167 | Average$468 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$182 | Average$560 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$193 | Average$408 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$211 | Average$481 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$284 | Average$524 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$306 | Average$504 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$324 | Average$587 | FlexibilityNo cancel fee | On-time69% |