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Cheap flights from California to Ireland from $260

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Ireland departing on 1/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from California to Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
7:00 am - 8:10 am
SMF
-
DUB
17h 10m1 stop
Lufthansa Logo
10:40 am - 9:53 pm
DUB
-
SMF
19h 13m2 stops
$430Lufthansa
Mon, Jan 19 - Mon, Jan 26
Lufthansa Logo
7:00 am - 8:10 am
SMF
-
DUB
17h 10m1 stop
Lufthansa Logo
10:40 am - 6:41 pm
DUB
-
SMF
16h 01m1 stop
$441Lufthansa
Mon, Jan 19 - Mon, Jan 26
British Airways Logo
6:00 pm - 7:40 pm
SAN
-
DUB
17h 40m1 stop
British Airways Logo
8:50 am - 4:10 pm
DUB
-
SAN
15h 20m1 stop
$444British Airways
Mon, Feb 16 - Mon, Feb 23
Multiple Airlines Logo
6:05 pm - 7:10 am
SAN
-
DUB
29h 05m2 stops
Multiple Airlines Logo
9:00 am - 11:53 am
DUB
-
SAN
34h 53m1 stop
$450Multiple Airlines
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
7:00 am - 8:10 am
SAN
-
DUB
17h 10m1 stop
Multiple Airlines Logo
9:00 am - 3:04 pm
DUB
-
SAN
38h 04m2 stops
$452Multiple Airlines
Sat, Jan 10 - Sat, Jan 17
United Airlines Logo
7:00 am - 8:10 am
SMF
-
DUB
17h 10m1 stop
United Airlines Logo
9:00 am - 5:58 pm
DUB
-
SMF
40h 58m2 stops
$456United Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
10:15 pm - 10:20 am
SAN
-
DUB
28h 05m1 stop
United Airlines Logo
8:00 am - 11:53 am
DUB
-
SAN
34h 53m1 stop
$456United Airlines
Wed, Feb 18 - Sun, Mar 15
Air Canada Logo
12:40 pm - 7:10 am
SAN
-
DUB
34h 30m1 stop
Air Canada Logo
8:00 am - 7:00 pm
DUB
-
SAN
42h 00m2 stops
$458Air Canada
Mon, Feb 16 - Sun, Mar 15
British Airways Logo
6:00 pm - 7:40 pm
SAN
-
DUB
17h 40m1 stop
British Airways Logo
6:30 pm - 4:10 pm
DUB
-
SAN
29h 40m1 stop
$460British Airways
Mon, Feb 16 - Sun, Feb 22
Air Canada Logo
8:45 am - 7:10 am
SMF
-
DUB
38h 25m2 stops
Air Canada Logo
9:00 am - 1:28 pm
DUB
-
SMF
36h 28m2 stops
$462Air Canada
Thu, Jan 29 - Mon, Feb 2

Lufthansa flights from California to Ireland

Our best Lufthansa deals on California to Ireland flight tickets
Lufthansa
Jan 19
SMF7:00 amSacramento Intl
17h 10m
1 stop
DUB8:10 amDublin
Jan 26
DUB10:40 amDublin
19h 13m
2 stops
SMF9:53 pmSacramento Intl
$430
Find similar
Lufthansa
Dec 29
SAN7:00 amSan Diego
17h 10m
1 stop
DUB8:10 amDublin
Jan 12
DUB10:40 amDublin
19h 53m
1 stop
SAN10:33 pmSan Diego
$431
Find similar
Lufthansa
Jan 19
SMF7:00 amSacramento Intl
17h 10m
1 stop
DUB8:10 amDublin
Jan 26
DUB10:40 amDublin
16h 01m
1 stop
SMF6:41 pmSacramento Intl
$441
Find similar

British Airways flights from California to Ireland

Our best British Airways deals on California to Ireland flight tickets
British Airways
Feb 16
SAN6:00 pmSan Diego
17h 40m
1 stop
DUB7:40 pmDublin
Feb 23
DUB8:40 pmDublin
27h 30m
1 stop
SAN4:10 pmSan Diego
$444
Find similar
British Airways
Feb 16
SAN6:00 pmSan Diego
17h 40m
1 stop
DUB7:40 pmDublin
Feb 22
DUB6:30 pmDublin
29h 40m
1 stop
SAN4:10 pmSan Diego
$460
Find similar
British Airways
Mar 10
SAN3:19 pmSan Diego
18h 41m
2 stops
DUB5:00 pmDublin
Mar 20
DUB8:50 amDublin
15h 20m
1 stop
SAN5:10 pmSan Diego
$464
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 21, 2025.
Use the filters below to find and compare flights from California to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SacramentoDublin

SMF - DUB

SMFDUB

Sacramento Intl

Mon 1/19

7:00 am-8:10 am

1 stop17h 10m

Dublin

Mon 1/26

10:40 am-9:53 pm

2 stops19h 13m

$430

SacramentoDublin

SMF - DUB

SMFDUB

Sacramento Intl

Mon 1/19

7:00 am-8:10 am

1 stop17h 10m

Dublin

Mon 1/26

10:40 am-6:41 pm

1 stop16h 01m

$441

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Mon 2/16

6:00 pm-7:40 pm

1 stop17h 40m

Dublin

Mon 2/23

8:50 am-4:10 pm

1 stop15h 20m

$444

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Wed 1/14

6:05 pm-7:10 am

2 stops29h 05m

Dublin

Wed 1/21

9:00 am-11:53 am

1 stop34h 53m

$450

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Sat 1/10

7:00 am-8:10 am

1 stop17h 10m

Dublin

Sat 1/17

9:00 am-3:04 pm

2 stops38h 04m

$452

SacramentoDublin

SMF - DUB

SMFDUB

Sacramento Intl

Thu 1/29

7:00 am-8:10 am

1 stop17h 10m

Dublin

Mon 2/2

9:00 am-5:58 pm

2 stops40h 58m

$456

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Wed 2/18

10:15 pm-10:20 am

1 stop28h 05m

Dublin

Sun 3/15

8:00 am-11:53 am

1 stop34h 53m

$456

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Mon 2/16

12:40 pm-7:10 am

1 stop34h 30m

Dublin

Sun 3/15

8:00 am-7:00 pm

2 stops42h 00m

$458

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Mon 2/16

6:00 pm-7:40 pm

1 stop17h 40m

Dublin

Sun 2/22

6:30 pm-4:10 pm

1 stop29h 40m

$460

SacramentoDublin

SMF - DUB

SMFDUB

Sacramento Intl

Thu 1/29

8:45 am-7:10 am

2 stops38h 25m

Dublin

Mon 2/2

9:00 am-1:28 pm

2 stops36h 28m

$462

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 Ireland from

How to get the cheapest flight ticket from California to Ireland

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 Ireland?

In general, February is the cheapest month to fly from California to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $569. If you aren’t able to travel to Ireland during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $579.

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

The cheapest day to depart on your flight to Ireland is on a Sunday when prices can be found for as low as $734. This is often the case because there is less demand to fly during this day of the week. Flights from California to Ireland on a Saturday will generally be more expensive and average around $855. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from California to Ireland in the evening for as low as $772. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the morning when prices are around $849.

What is the cheapest California to Ireland flight route?

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

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

You are more likely to see cheaper flights to Ireland from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $736 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from California for as low as $662 on momondo.

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

There are 4 cabin classes available to choose from on California to Ireland 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 California to Ireland flights?

You could potentially save up to 29% on your flight if you consider stops on a California to Ireland flight.

Cheap California to Ireland flight deals and tips

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

Best Price Found

$413

Fastest flight time

9h 45m

Direct flights

Every day

Airports in Ireland

77 airports
The best one-way flight to Ireland from California in the past 72 hours is $413. The best round-trip flight deal from California to Ireland found on momondo in the last 72 hours is $675.
The fastest flight from California to Ireland takes 9h 45m
Direct flights go from California to Ireland every day.
There are 77 airports in Ireland. From California there are direct flights to Dublin (DUB).
Search flight deals

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

    Prices for flights from California to Ireland are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Ireland.

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

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from California to Ireland

Compare and see reviews for airlines that fly from California to Ireland with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $415Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
Scandinavian AirlinesPriceFrom $421Free CancellationRating
7.4
1,618 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $431Free CancellationRating
7.2
2,093 reviews
Search TAP AIR PORTUGAL flights
KLMPriceFrom $433Free CancellationRating
7.7
1,429 reviews
Search KLM flights
LufthansaPriceFrom $440Free CancellationRating
6.8
7,640 reviews
Search Lufthansa flights
DeltaPriceFrom $454Free CancellationRating
7.9
8,021 reviews
Search Delta flights
Air CanadaPriceFrom $457Free CancellationRating
7.1
10,550 reviews
Search Air Canada flights
British AirwaysPriceFrom $468Free CancellationRating
6.7
7,600 reviews
Search British Airways flights
American AirlinesPriceFrom $468Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $483Free CancellationRating
7.4
9,100 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to Ireland. momondo saves you time and could save you money on your trip.

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

Flights from California to Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from California to Ireland.

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

Price alerts on flights to Ireland from California are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
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