Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ireland to California from £349

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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LAX
7 Dec — 14 Dec1
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 7 November 2025.

Thu 4/1205:55DUB - LAS
1 stop16h 20mKLM
Thu 18/1209:38LAS - DUB
1 stop14h 07mKLM
Deal found 5/11£376
Thu 4/1208:50DUB - LAS
1 stop13h 25mDelta
Thu 11/1206:00LAS - DUB
2 stops18h 45mDelta
Deal found 6/11£378
Thu 27/1113:25DUB - LAS
2 stops19h 02mDelta
Thu 4/1213:40LAS - DUB
2 stops18h 05mDelta
Deal found 6/11£379
Thu 4/1213:25DUB - LAS
2 stops18h 55mDelta
Thu 18/1210:40LAS - DUB
1 stop14h 40mDelta
Deal found 5/11£380
Thu 20/1105:55DUB - LAS
2 stops21h 52mDelta
Sat 29/1106:00LAS - DUB
2 stops17h 45mDelta
Deal found 6/11£382
Wed 3/1211:30DUB - LAS
1 stop15h 05mMultiple Airlines
Wed 10/1210:31LAS - DUB
1 stop14h 09mMultiple Airlines
Deal found 4/11£385
Fri 21/1111:30DUB - LAS
1 stop19h 19mIberia
Mon 24/1110:29LAS - DUB
1 stop14h 11mIberia
Deal found 5/11£386
Thu 20/1109:45DUB - LAS
1 stop14h 43mKLM
Thu 27/1116:05LAS - DUB
1 stop16h 15mKLM
Deal found 6/11£392
Fri 12/1210:45DUB - SFO
2 stops35h 50mScandinavian Airlines
Fri 9/116:40SFO - DUB
2 stops33h 30mScandinavian Airlines
Deal found 6/11£393
Fri 21/1112:55DUB - ONT
1 stop17h 28mMultiple Airlines
Tue 25/1107:00ONT - DUB
2 stops17h 40mMultiple Airlines
Deal found 5/11£395
Fri 21/1112:55DUB - BUR
1 stop15h 30mMultiple Airlines
Tue 25/1107:00BUR - DUB
2 stops17h 40mMultiple Airlines
Deal found 5/11£395
Tue 16/1211:30DUB - LAS
1 stop15h 05mMultiple Airlines
Tue 23/1210:51LAS - DUB
1 stop12h 24mMultiple Airlines
Deal found 6/11£407

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 7 November 2025.

Round-trip from

£372

One-way from

£349

Popular in

July

Cheapest in

February

Average price

£445

Good round-trip deal

£452 or less

Good one-way deal

£513 or less
Delta
  • Delta
  • 13/2-24/2
  • 4 total stops
  • 43h 16m total
  • Ireland to California
Search Deals
British Airways
  • British Airways
  • 22/2
  • 2 total stops
  • 18h 58m total
  • Ireland to California
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£83 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 7 November 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

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

09:30-20:50

2 stops19h 20m

Ontario

Sun 1/3

06:00-09:55

2 stops19h 55m

£377

DublinBurbank

DUB - BUR

DUBBUR

Dublin

Fri 20/2

09:30-20:54

2 stops19h 24m

Burbank Bob Hope

Tue 24/2

09:00-10:20

2 stops17h 20m

£377

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Thu 27/11

13:25-00:27

2 stops19h 02m

Las Vegas Harry Reid Intl

Thu 4/12

13:40-15:45

2 stops18h 05m

£379

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Thu 12/3

08:50-21:41

2 stops19h 51m

Las Vegas Harry Reid Intl

Mon 16/3

00:45-07:45

1 stop24h 00m

£380

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Thu 4/12

13:25-00:20

2 stops18h 55m

Las Vegas Harry Reid Intl

Thu 18/12

10:40-09:20

1 stop14h 40m

£380

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Wed 3/12

11:30-21:13

2 stops17h 43m

Las Vegas Harry Reid Intl

Wed 10/12

09:58-08:40

2 stops14h 42m

£385

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 13/3

05:55-20:21

2 stops21h 26m

San Francisco

Tue 24/3

06:45-07:50

2 stops18h 05m

£385

DublinSan Jose

DUB - SJC

DUBSJC

Dublin

Wed 11/2

05:55-19:12

2 stops21h 17m

San Jose

Fri 20/2

09:17-15:45

2 stops22h 28m

£385

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Sun 1/2

11:30-21:59

1 stop18h 29m

Las Vegas Harry Reid Intl

Sat 7/2

10:42-08:40

1 stop13h 58m

£386

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Thu 27/11

09:45-16:28

1 stop14h 43m

Las Vegas Harry Reid Intl

Thu 4/12

10:00-08:45

1 stop14h 45m

£386

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 60 results
1
2
3
...
6

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, November 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 £532). 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 7 November 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 7 November 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
9,007 reviews
Check prices

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

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
9,007 reviews
United Airlines
7.4
Good
9,007 reviews
Check prices

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

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
11,040 reviews
United Airlines
7.4
Good
9,007 reviews
Check prices

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

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
1,365 reviews
United Airlines
7.4
Good
9,007 reviews
Check prices

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

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
10,416 reviews
United Airlines
7.4
Good
9,007 reviews
Check prices

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

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
7,500 reviews
United Airlines
7.4
Good
9,007 reviews
Check prices

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

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 £379, United Airlines can have you in California from Ireland in 19h 02m. The distance between Ireland and California is about 4938 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 British Airways. According to our data, you can fly for as low as £349. Users have also found prices from £455 and £462 on Aer Lingus and TAP AIR PORTUGAL, 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, November 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 £532). 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 Ireland to California

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Heathrow to LaGuardia flights
Gatwick to John F Kennedy Intl flights
London City to John F Kennedy Intl flights
Gatwick to Newark flights
Stansted to John F Kennedy Intl flights
Gatwick to LaGuardia flights
London City to Newark flights
Luton to John F Kennedy Intl flights
Stansted to Newark flights
Heathrow to Miami flights
Luton to Newark flights
Manchester to John F Kennedy Intl flights
Heathrow to Los Angeles flights
Heathrow to Orlando flights
London City to LaGuardia flights
Heathrow to Boston flights
Heathrow to San Francisco flights
Heathrow to Dulles Intl flights
Heathrow to Dallas/Fort Worth flights
Manchester to Orlando flights
Heathrow to Las Vegas flights
Gatwick to Miami flights
London City to Miami flights
Heathrow to Baltimore flights
Gatwick to Orlando flights
Manchester to Newark flights
Heathrow to Tampa flights
Gatwick to Los Angeles flights
Heathrow to O'Hare Intl flights
Manchester to LaGuardia flights
Heathrow to Atlanta flights
London City to Los Angeles flights
Edinburgh to Newark flights
Gatwick to Boston flights
Heathrow to Seattle flights
London City to Orlando flights
Heathrow to Hobby flights
Stansted to Miami flights
Heathrow to Philadelphia flights
London City to Boston flights
Gatwick to San Francisco flights
Heathrow to Denver flights
Edinburgh to John F Kennedy Intl flights
Heathrow to Reagan-National flights
Heathrow to George Bush Intcntl flights
Gatwick to Dulles Intl flights
Gatwick to Dallas/Fort Worth flights
Heathrow to Ontario flights

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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£322Average£385FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£326Average£345FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£332Average£519FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£334Average£504FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£348Average£530FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest£349Average£572FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£368Average£589FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£405Average£511FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£424Average£576FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£430Average£615FlexibilityNo 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.

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.