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Cheap flights from Ireland to California from £334

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LAX
14 12월 — 21 12월1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ireland to California

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to California
Explore the most affordable flight options available from Ireland to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 11월 2025.

금 12/1211:30DUB - LAS
1 stop18h 59mIberia
일 21/1210:29LAS - DUB
1 stop14h 11mIberia
Deal found 12/11£386
금 12/1212:30DUB - SFO
Nonstop11h 05mAer Lingus
화 23/1217:20SFO - DUB
Nonstop10h 05mAer Lingus
Deal found 13/11£388
목 11/1220:40DUB - LAS
1 stop30h 10mBritish Airways
수 24/1220:55LAS - DUB
1 stop27h 00mBritish Airways
Deal found 13/11£389
금 21/1112:30DUB - SFO
Nonstop11h 05mAer Lingus
화 2/1217:20SFO - DUB
Nonstop10h 05mAer Lingus
Deal found 13/11£391
금 28/1111:30DUB - ONT
2 stops17h 41mMultiple Airlines
화 2/1207:00ONT - DUB
2 stops17h 40mMultiple Airlines
Deal found 12/11£395
금 12/1211:30DUB - LAS
1 stop15h 05mMultiple Airlines
화 23/1210:51LAS - DUB
1 stop12h 24mMultiple Airlines
Deal found 12/11£408
토 13/1205:55DUB - LAS
1 stop16h 20mKLM
일 14/1210:00LAS - DUB
1 stop14h 45mKLM
Deal found 12/11£410
토 6/1215:15DUB - LAS
Nonstop10h 35mAer Lingus
화 9/1207:05LAS - DUB
1 stop14h 00mAer Lingus
Deal found 12/11£413
화 9/1205:55DUB - LAX
1 stop13h 50mDelta
화 16/1222:59LAX - DUB
1 stop24h 46mDelta
Deal found 10/11£415
금 28/1105:55DUB - LAS
2 stops21h 52mDelta
화 2/1213:40LAS - DUB
2 stops18h 05mDelta
Deal found 12/11£415
목 20/1115:15DUB - LAS
Nonstop10h 35mMultiple Airlines
목 18/1208:30LAS - DUB
1 stop16h 20mMultiple Airlines
Deal found 13/11£416
목 4/1208:50DUB - LAX
2 stops21h 38mDelta
목 8/106:20LAX - DUB
2 stops17h 45mDelta
Deal found 11/11£416

Cheap flight deals from Ireland to California

Keep the following information in mind while searching for Ireland to California flight deals. Data was last updated 14 11월 2025.

Round-trip from

£374

One-way from

£334

Popular in

July

Cheapest in

February

Average price

£470

Good round-trip deal

£450 or less

Good one-way deal

£510 or less
KLM
  • KLM
  • 24/1-29/1
  • 2 total stops
  • 32h 20m total
  • Ireland to California
Search Deals
2/4
  • 2/4
  • 2 total stops
  • 27h 44m total
  • Ireland to California
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£82 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Ireland to California.
Search Deals
Price to beat on a one-way flight from Ireland to California.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to California 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 858,174 searches. Data last updated 14 11월 2025.
Use the filters below to find and compare flights from Ireland to California that are best for you.

Fly from

Ireland

Fly to

California

Route

Depart

Return

Price

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

목 5/3

19:05-14:35

1 stop27h 30m

San Francisco

월 9/3

17:40-18:20

1 stop17h 40m

£381

DublinOntario

DUB - ONT

DUBONT

Dublin

금 28/11

11:30-21:11

2 stops17h 41m

Ontario

화 2/12

07:00-08:40

2 stops17h 40m

£395

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

금 13/3

10:45-19:45

1 stop16h 00m

San Francisco

화 24/3

18:30-17:00

1 stop15h 30m

£402

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

수 4/3

10:20-23:22

2 stops21h 02m

San Francisco

일 8/3

13:33-14:20

2 stops17h 47m

£408

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

수 14/1

11:30-19:35

1 stop16h 05m

San Francisco

수 28/1

20:40-19:45

1 stop15h 05m

£409

DublinLos Angeles

DUB - LAX

DUBLAX

Dublin

목 4/12

08:50-22:28

2 stops21h 38m

Los Angeles

목 8/1

06:20-08:05

2 stops17h 45m

£416

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

수 10/12

20:40-18:50

1 stop30h 10m

Las Vegas Harry Reid Intl

수 24/12

20:55-14:50

1 stop33h 55m

£417

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

금 12/12

20:35-18:50

1 stop30h 15m

Las Vegas Harry Reid Intl

목 25/12

20:55-07:55

1 stop27h 00m

£417

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

수 10/12

20:40-18:50

1 stop30h 10m

Las Vegas Harry Reid Intl

목 25/12

20:55-19:50

1 stop14h 55m

£417

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

목 11/12

20:40-18:50

1 stop30h 10m

Las Vegas Harry Reid Intl

목 25/12

20:55-07:55

1 stop27h 00m

£417

Flights are sorted by cheapest return flights first.

Deals found on 12/11

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

Have a flexible travel schedule? Discover the best time to fly to California from Ireland with our price prediction graph.
Estimated return 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 Ireland to California

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

Currently, March is the cheapest month in which you can book a flight from Ireland to California (average of £328). Flying from Ireland to California in July is currently the most expensive (average of £528). 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 IE to CA?

Find hourly flight availability from Ireland to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 11월 2025.

It’s optimal to fly from Ireland to California in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. 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 California. Reviews last updated 14 11월 2025.
Read reviews from past customers who have flown with United Airlines, American Airlines, andAer Lingus from Ireland to California. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,017 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,017 reviews
United Airlines
7.4
Good
9,017 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
American Airlines
7.2
Good
11,050 reviews
United Airlines
7.4
Good
9,017 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Aer Lingus
7.2
Good
1,370 reviews
United Airlines
7.4
Good
9,017 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
10,450 reviews
United Airlines
7.4
Good
9,017 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
British Airways
6.7
Okay
7,521 reviews
United Airlines
7.4
Good
9,017 reviews
Check prices

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Ireland to California. 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 Ireland to California flight route?

    The Ireland to California flight path was viewed by 347 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Ireland to California?

    For as low as £402, Scandinavian Airlines can have you in California from Ireland in 16h. The distance between Ireland and California is about 5081 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as £399. Users have also found prices from £451 and £464 on British Airways and Aer Lingus, respectively.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Ireland to California (average of £328). Flying from Ireland to California in July is currently the most expensive (average of £528). 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

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Alternative routes for Ireland to California

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

Discover the top 10 airlines that operate flights from Ireland to California. 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 858,174 searches. Data last updated 14 11월 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£321Average£383FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£324Average£344FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£330Average£517FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£333Average£501FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£347Average£527FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest£347Average£569FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£366Average£586FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£403Average£508FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£422Average£574FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£428Average£612FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to California?

Cheapflights makes it easy to find Ireland to California flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ireland to California?

Cheapflights helps you find that perfect flight to California from Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ireland to California with no change fees?

Certainly. Search results for flights to California from Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ireland to California become cheaper?

Yes, Cheapflights offers price alerts on Ireland to California flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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