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$306+ Cheap flights from California to Ireland

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DUB
abr. 27 — may. 41
dom. 4/27
dom. 5/4
1 adult, Economy
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Cheap flight deals from California to Ireland

Keep the following information in mind while searching for California to Ireland flight deals. Data was last updated abril 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$549
(American Airlines)

One-way from

$306
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$760

Good round-trip deal

$717 or less

Good one-way deal

$512 or less
Provider with most accurate pricing for Los Angeles-Dublin flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Dublin flights.
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From California to Ireland
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One-way flight from California to Ireland
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Highest demand for flights based on searches. 21% potential increase in price ($204 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from California to Ireland.
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Price to beat on a one-way flight from California to Ireland.
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Find flight deals from California to Ireland

Cheapest flights from California to Ireland
Explore the most affordable flight options available from California to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 22, 2025.

This American Airlines deal was found by Cheapflights users on 4/21. 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.
lun. 4/282:44 pmONT - DUB
1 stop35h 01mAmerican Airlines
mar. 5/139:30 amDUB - ONT
2 stops17h 06mAmerican Airlines
Deal found 4/21$545
This Delta deal was found by Cheapflights users on 4/21. 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.
mar. 9/2312:00 pmONT - DUB
1 stop12h 45mDelta
jue. 10/211:00 amDUB - ONT
1 stop16h 42mDelta
Deal found 4/21$552
This Iberia deal was found by Cheapflights users on 4/22. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/110:54 amONT - DUB
1 stop14h 51mIberia
mar. 10/1412:40 pmDUB - ONT
1 stop19h 22mIberia
Deal found 4/22$560
This Gurufare deal was found by Cheapflights users on 4/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/161:07 pmSJC - DUB
2 stops17h 28mBritish Airways
mié. 7/308:20 pmDUB - SJC
2 stops30h 07mBritish Airways
Deal found 4/21$584
This United Airlines deal was found by Cheapflights users on 4/22. 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.
mar. 8/126:15 amSAN - DUB
1 stop17h 30mUnited Airlines
mar. 8/269:20 amDUB - SAN
2 stops34h 20mUnited Airlines
Deal found 4/22$587
This Booking.com deal was found by Cheapflights users on 4/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/2811:59 pmONT - DUB
2 stops27h 56mBritish Airways
mar. 5/1312:45 pmDUB - ONT
2 stops18h 58mBritish Airways
Deal found 4/21$587
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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.
mié. 12/109:45 amSAN - DUB
1 stop13h 30mIberia
mié. 12/172:05 pmDUB - SAN
1 stop15h 46mIberia
Deal found 4/21$597
This CheapOair deal was found by Cheapflights users on 4/21. 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.
sáb. 8/210:20 pmSAN - DUB
2 stops25h 55mAir Canada
jue. 8/219:20 amDUB - SAN
2 stops34h 20mAir Canada
Deal found 4/21$598
This Air Canada deal was found by Cheapflights users on 4/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/128:00 amSAN - DUB
2 stops15h 45mMultiple Airlines
mar. 8/269:20 amDUB - SAN
2 stops20h 33mMultiple Airlines
Deal found 4/22$604
This KLM deal was found by Cheapflights users on 4/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/27:05 amONT - DUB
1 stop17h 40mKLM
mar. 6/1011:00 amDUB - ONT
1 stop19h 25mKLM
Deal found 4/21$610
This FlightHub deal was found by Cheapflights users on 4/21. 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.
mié. 11/1911:10 amSMF - DUB
2 stops40h 35mScandinavian Airlines
lun. 12/17:05 pmDUB - SMF
2 stops35h 09mScandinavian Airlines
Deal found 4/21$615
This Expedia deal was found by Cheapflights users on 4/21. 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.
lun. 9/17:20 pmSFO - DUB
1 stop16h 15mBritish Airways
lun. 9/158:55 pmDUB - SFO
1 stop24h 55mBritish Airways
Deal found 4/21$621

Cheapflights Fare Finder

Customize your flight search to find flights from California to Ireland 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 abril 22, 2025.
Use the filters below to find and compare flights from California to Ireland that are best for you.

Fly from

California

Fly to

Ireland

Route

Depart

Return

Price

OntarioDublin

ONT - DUB

ONTDUB

Ontario

lun. 4/28

2:44 pm-9:45 am

1 stop35h 01m

Dublin

mar. 5/13

9:30 am-6:36 pm

2 stops17h 06m

$545

San JoseDublin

SJC - DUB

SJCDUB

San Jose

mié. 7/16

1:07 pm-2:35 pm

2 stops17h 28m

Dublin

mié. 7/30

8:20 pm-6:27 pm

2 stops30h 07m

$584

OntarioDublin

ONT - DUB

ONTDUB

Ontario

lun. 4/28

11:59 pm-11:55 am

2 stops27h 56m

Dublin

mar. 5/13

12:45 pm-11:43 pm

2 stops18h 58m

$587

OntarioDublin

ONT - DUB

ONTDUB

Ontario

lun. 6/2

7:05 am-8:45 am

1 stop17h 40m

Dublin

mar. 6/10

11:00 am-10:25 pm

1 stop19h 25m

$610

OntarioDublin

ONT - DUB

ONTDUB

Ontario

mié. 4/30

10:54 am-9:45 am

1 stop14h 51m

Dublin

dom. 5/4

12:40 pm-11:50 pm

1 stop19h 10m

$612

OntarioDublin

ONT - DUB

ONTDUB

Ontario

lun. 5/5

12:07 pm-8:45 am

1 stop12h 38m

Dublin

mar. 5/20

11:00 am-10:29 pm

1 stop19h 29m

$617

San FranciscoDublin

SFO - DUB

SFODUB

San Francisco

mar. 8/19

7:40 pm-7:00 pm

2 stops39h 20m

Dublin

dom. 9/7

7:15 pm-4:30 pm

2 stops29h 15m

$623

Las VegasDublin

LAS - DUB

LASDUB

Las Vegas Harry Reid Intl

lun. 4/28

10:50 am-9:45 am

1 stop14h 55m

Dublin

mar. 5/13

12:40 pm-6:41 pm

1 stop14h 01m

$629

Los AngelesDublin

LAX - DUB

LAXDUB

Los Angeles

mar. 7/1

1:25 pm-3:00 pm

2 stops17h 35m

Dublin

mié. 7/16

10:00 am-8:31 pm

1 stop18h 31m

$629

San FranciscoDublin

SFO - DUB

SFODUB

San Francisco

mar. 9/30

5:45 pm-11:45 am

Nonstop10h 00m

Dublin

mar. 10/14

3:25 pm-10:56 pm

1 stop15h 31m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 60 results
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Best time to book a flight from California to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from California 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 California to Ireland

What is the cheapest month to book a flight from California to Ireland?

Currently, November is the cheapest month in which you can book a flight from California to Ireland (average of $509). Flying from California to Ireland in June is currently the most expensive (average of $1,006). 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 CA to IE?

Find hourly flight availability from California to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 22, 2025.

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

Rainfall in Ireland by month

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

In terms of precipitation, rainfall in Ireland ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Ireland when rainfall is around 1.9 in.

Temperature in Ireland by month

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

If weather is an important factor for your trip to Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated abril 22, 2025.
Read reviews from past customers who have flown Delta, Porter Airlines and KLM from California to Ireland. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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.
Porter Airlines
8.0
Very good
284 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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.
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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.
Air Transat
7.8
Good
385 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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.
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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 California to Ireland. 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 California to Ireland flight route?

    Flights from California to Ireland have been viewed 47 times in the past calendar month.

  • What are the cheapest airlines to fly from California to Ireland one-way?

    The cheapest airlines for a one-way flight from California to Ireland are WestJet ($306), Aer Lingus ($442), and Iberia ($446).

  • Can I find deals for flights from California to Ireland that include hotel bookings?

    Yes. In addition to deals on California to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to Ireland?

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

  • Can I find deals for business class flights from California to Ireland?

    Yes. Cheapflights offers flight deals from California to Ireland 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 California to Ireland?

    Currently, November is the cheapest month in which you can book a flight from California to Ireland (average of $509). Flying from California to Ireland in June is currently the most expensive (average of $1,006). 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 California to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from California to Ireland

Discover the top 10 airlines that operate flights from California to Ireland. 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 abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$303Average$495FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$428Average$780FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$442Average$828FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$454Average$672FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$471Average$948FlexibilityNo cancel feeOn-time71%
DeltaCheapest$479Average$903FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$479Average$848FlexibilityNo cancel feeOn-time75%
SWISSCheapest$482Average$787FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$488Average$879FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$491Average$997FlexibilityNo cancel feeOn-time70%

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