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Cheap flights from Ireland to California from $300

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to California departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Recent round-trip flight deals from Ireland to California

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Multiple Airlines Logo
10:30 am - 9:48 pm
DUB
-
LAS
19h 18m2 stops
Multiple Airlines Logo
11:01 am - 12:45 pm
LAS
-
DUB
17h 44m2 stops
$483Multiple Airlines
Thu, Jan 15 - Sat, Jan 31
British Airways Logo
10:30 am - 9:49 pm
DUB
-
LAS
18h 19m2 stops
British Airways Logo
12:29 pm - 5:00 pm
LAS
-
DUB
21h 31m2 stops
$484British Airways
Thu, Mar 12 - Tue, Mar 17
British Airways Logo
8:50 am - 8:01 pm
DUB
-
LAS
19h 11m2 stops
British Airways Logo
8:55 pm - 7:55 am
LAS
-
DUB
27h 00m1 stop
$485British Airways
Thu, Jan 15 - Sun, Feb 1
Aer Lingus Logo
3:15 pm - 5:50 pm
DUB
-
LAS
10h 35mnonstop
Aer Lingus Logo
7:35 pm - 1:20 pm
LAS
-
DUB
9h 45mnonstop
$491Aer Lingus
Sat, Jan 17 - Sat, Jan 24
American Airlines Logo
1:10 pm - 6:50 pm
DUB
-
LAS
13h 40m1 stop
American Airlines Logo
6:03 am - 8:40 am
LAS
-
DUB
18h 37m1 stop
$495American Airlines
Thu, Jan 15 - Thu, Jan 29
American Airlines Logo
10:45 am - 10:49 pm
DUB
-
SJC
20h 04m2 stops
American Airlines Logo
4:25 pm - 5:00 pm
SJC
-
DUB
16h 35m2 stops
$563American Airlines
Fri, Jan 30 - Fri, Feb 6
Delta Logo
5:55 am - 10:51 pm
DUB
-
ONT
24h 56m2 stops
Delta Logo
10:30 pm - 8:45 am
ONT
-
DUB
26h 15m2 stops
$693Delta
Fri, Jan 30 - Fri, Feb 6
United Airlines Logo
9:00 am - 10:57 pm
DUB
-
ONT
21h 57m2 stops
United Airlines Logo
11:59 pm - 7:30 am
ONT
-
DUB
24h 31m2 stops
$698United Airlines
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
9:00 am - 8:49 pm
DUB
-
SNA
19h 49m2 stops
United Airlines Logo
7:01 am - 7:30 am
SNA
-
DUB
16h 29m2 stops
$698United Airlines
Fri, Feb 27 - Mon, Mar 2
Aer Lingus Logo
9:15 pm - 6:25 pm
SNN
-
LAX
29h 10m1 stop
Aer Lingus Logo
5:05 pm - 8:35 pm
LAX
-
SNN
19h 30m1 stop
$723Aer Lingus
Tue, Apr 14 - Mon, Apr 20

TAP AIR PORTUGAL flights from Ireland to California

Our best TAP AIR PORTUGAL deals on Ireland to California flight tickets
TAP AIR PORTUGAL
Apr 3
DUB5:30 amDublin
19h 20m
1 stop
SFO4:50 pmSan Francisco
Apr 11
SFO7:35 pmSan Francisco
20h 30m
1 stop
DUB12:05 amDublin
$557
Find similar
TAP AIR PORTUGAL
Jan 14
DUB4:25 amDublin
18h 15m
1 stop
LAX2:40 pmLos Angeles
Jan 22
LAX4:45 pmLos Angeles
22h 35m
1 stop
DUB11:20 pmDublin
$565
Find similar
TAP AIR PORTUGAL
Jan 16
DUB4:25 amDublin
18h 35m
1 stop
LAX3:00 pmLos Angeles
Jan 29
LAX4:45 pmLos Angeles
22h 35m
1 stop
DUB11:20 pmDublin
$566
Find similar

JetBlue flights from Ireland to California

Our best JetBlue deals on Ireland to California flight tickets
JetBlue
Apr 22
DUB10:40 amDublin
16h 58m
1 stop
SAN7:38 pmSan Diego
May 7
SAN11:08 amSan Diego
13h 12m
1 stop
DUB8:20 amDublin
$765
Find similar
JetBlue
Mar 31
SNN1:45 pmShannon
14h 18m
1 stop
LAX8:03 pmLos Angeles
Apr 7
LAX8:00 amLos Angeles
13h 55m
1 stop
SNN5:55 amShannon
$1,477
Find similar
JetBlue
Mar 31
SNN1:45 pmShannon
14h 18m
1 stop
LAX8:03 pmLos Angeles
Apr 5
LAX6:00 amLos Angeles
15h 55m
1 stop
SNN5:55 amShannon
$1,502
Find similar

momondo Fare Finder

 
Customize 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Ireland to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Thu 1/15

10:30 am-9:48 pm

2 stops19h 18m

Las Vegas Harry Reid Intl

Sat 1/31

11:01 am-12:45 pm

2 stops17h 44m

$483

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Thu 3/12

10:30 am-9:49 pm

2 stops18h 19m

Las Vegas Harry Reid Intl

Tue 3/17

12:29 pm-5:00 pm

2 stops21h 31m

$484

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Thu 1/15

8:50 am-8:01 pm

2 stops19h 11m

Las Vegas Harry Reid Intl

Sun 2/1

8:55 pm-7:55 am

1 stop27h 00m

$485

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Sat 1/17

3:15 pm-5:50 pm

Nonstop10h 35m

Las Vegas Harry Reid Intl

Sat 1/24

7:35 pm-1:20 pm

Nonstop9h 45m

$491

DublinLas Vegas

DUB - LAS

DUBLAS

Dublin

Thu 1/15

1:10 pm-6:50 pm

1 stop13h 40m

Las Vegas Harry Reid Intl

Thu 1/29

6:03 am-8:40 am

1 stop18h 37m

$495

DublinSan Jose

DUB - SJC

DUBSJC

Dublin

Fri 1/30

10:45 am-10:49 pm

2 stops20h 04m

San Jose

Fri 2/6

4:25 pm-5:00 pm

2 stops16h 35m

$563

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 1/30

5:55 am-10:51 pm

2 stops24h 56m

Ontario

Fri 2/6

10:30 pm-8:45 am

2 stops26h 15m

$693

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 3/4

9:00 am-10:57 pm

2 stops21h 57m

Ontario

Sun 3/8

11:59 pm-7:30 am

2 stops24h 31m

$698

DublinSanta Ana

DUB - SNA

DUBSNA

Dublin

Fri 2/27

9:00 am-8:49 pm

2 stops19h 49m

Santa Ana J. Wayne/Orange Cnty

Mon 3/2

7:01 am-7:30 am

2 stops16h 29m

$698

ShannonLos Angeles

SNN - LAX

SNNLAX

Shannon

Tue 4/14

9:15 pm-6:25 pm

1 stop29h 10m

Los Angeles

Mon 4/20

5:05 pm-8:35 pm

1 stop19h 30m

$723

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to California from

How to get the cheapest flight ticket from Ireland to California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to California?

The month of October is another great option to travel to California, with average flight prices from Ireland averaging around $587.

What is the cheapest day to depart on your flight to California?

The cheapest day to depart from Ireland to California is on a Wednesday. Travelers who choose to depart for California on a Wednesday will often find tickets for as low as $581. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to California on Saturday is $950.

What is the cheapest time of day to depart on your flight to California?

The cheapest time of day to fly to California is in the morning when flights can be purchased for as low as $653. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $733 on average. Flights to California from Ireland at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Ireland to California flight route?

Fly from Dublin to Los Angeles for the best Ireland - California flight prices

How far in advance should I book a flight to California?

You are more likely to see cheaper flights to California from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around $683 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Ireland for as low as $632 on momondo.

What cabin class options are available on Ireland to California flights?

There are 4 cabin classes available to choose from on Ireland to California flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to California flights?

You could potentially save up to 24% on your flight if you consider stops on a Ireland to California flight.

Cheap Ireland to California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to California

Best Price Found

$581

Fastest flight time

10h 30m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in California

418 airports
The best one-way flight to California from Ireland in the past 72 hours is $581. The best round-trip flight deal from Ireland to California found on momondo in the last 72 hours is $600.
The fastest flight from Ireland to California takes 10h 30m
Direct flights go from Ireland to California on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Aer Lingus.
There are 418 airports in California. From Ireland there are direct flights to Los Angeles (LAX), San Francisco (SFO), Las Vegas Harry Reid Intl (LAS).
Search flight deals

  • When did momondo last update prices for flights from Ireland to California?

    Prices for flights from Ireland to California were last updated today.

  • How many operators does momondo search for flights from Ireland to California?

  • How old do you have to be to fly from Ireland to California?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to California.

  • What documentation or ID do you need to fly to California?

    The required travel and health documents for your California trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at California. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Ireland to California?

Best airlines flying from Ireland to California

Compare and see reviews for airlines that fly from Ireland to California with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $444Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
British AirwaysPriceFrom $456Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
DeltaPriceFrom $472Free CancellationRating
7.9
8,005 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $475Free CancellationRating
7.4
1,607 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $482Free CancellationRating
7.2
1,395 reviews
Search Aer Lingus flights
American AirlinesPriceFrom $589Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to California?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to California. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to California with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ireland to California flights to just show those with flexible booking policies.

How can momondo help me find flights from Ireland to California?

Once you have performed a search for Ireland to California flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ireland to California right now. Can momondo alert me if prices change?

If you are simply researching potential flights to California, momondo offers a useful price alert feature which will track prices for flights to California from Ireland and alert you when they change.

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