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Cheap flights from California to Ireland from €202

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 29/4. 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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Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
07:00 - 08:10
SMF
-
DUB
17h 10m1 stop
Lufthansa Logo
10:40 - 21:53
DUB
-
SMF
19h 13m2 stops
€367Lufthansa
Mon, 19 Jan - Mon, 26 Jan
Lufthansa Logo
07:00 - 08:10
SMF
-
DUB
17h 10m1 stop
Lufthansa Logo
10:40 - 18:41
DUB
-
SMF
16h 01m1 stop
€377Lufthansa
Mon, 19 Jan - Mon, 26 Jan
British Airways Logo
18:00 - 19:40
SAN
-
DUB
17h 40m1 stop
British Airways Logo
08:50 - 16:10
DUB
-
SAN
15h 20m1 stop
€379British Airways
Mon, 16 Feb - Mon, 23 Feb
Multiple Airlines Logo
18:05 - 07:10
SAN
-
DUB
29h 05m2 stops
Multiple Airlines Logo
09:00 - 11:53
DUB
-
SAN
34h 53m1 stop
€384Multiple Airlines
Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
07:00 - 08:10
SAN
-
DUB
17h 10m1 stop
Multiple Airlines Logo
09:00 - 15:04
DUB
-
SAN
38h 04m2 stops
€386Multiple Airlines
Sat, 10 Jan - Sat, 17 Jan
United Airlines Logo
07:00 - 08:10
SMF
-
DUB
17h 10m1 stop
United Airlines Logo
09:00 - 17:58
DUB
-
SMF
40h 58m2 stops
€389United Airlines
Thu, 29 Jan - Mon, 2 Feb
United Airlines Logo
17:00 - 08:10
SAN
-
DUB
31h 10m1 stop
United Airlines Logo
08:00 - 11:53
DUB
-
SAN
34h 53m1 stop
€389United Airlines
Tue, 17 Feb - Wed, 18 Mar
Air Canada Logo
12:40 - 07:10
SAN
-
DUB
34h 30m1 stop
Air Canada Logo
08:00 - 19:00
DUB
-
SAN
42h 00m2 stops
€391Air Canada
Mon, 16 Feb - Sun, 15 Mar
Air Canada Logo
16:35 - 07:10
SMF
-
DUB
30h 35m2 stops
Air Canada Logo
09:00 - 18:41
DUB
-
SMF
41h 41m2 stops
€394Air Canada
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
15:19 - 17:00
SAN
-
DUB
18h 41m2 stops
British Airways Logo
08:50 - 17:10
DUB
-
SAN
15h 20m1 stop
€396British Airways
Tue, 10 Mar - Fri, 20 Mar

Lufthansa flights from California to Ireland

Our best Lufthansa deals on California to Ireland flight tickets
Lufthansa
19 Jan
SMF07:00Sacramento Intl
17h 10m
1 stop
DUB08:10Dublin
26 Jan
DUB10:40Dublin
19h 13m
2 stops
SMF21:53Sacramento Intl
€367
Find similar
Lufthansa
29 Dec
SAN07:00San Diego
17h 10m
1 stop
DUB08:10Dublin
12 Jan
DUB10:40Dublin
19h 53m
1 stop
SAN22:33San Diego
€368
Find similar
Lufthansa
19 Jan
SMF07:00Sacramento Intl
17h 10m
1 stop
DUB08:10Dublin
26 Jan
DUB10:40Dublin
16h 01m
1 stop
SMF18:41Sacramento Intl
€377
Find similar

British Airways flights from California to Ireland

Our best British Airways deals on California to Ireland flight tickets
British Airways
16 Feb
SAN18:00San Diego
17h 40m
1 stop
DUB19:40Dublin
23 Feb
DUB08:50Dublin
15h 20m
1 stop
SAN16:10San Diego
€379
Find similar
British Airways
10 Mar
SAN14:46San Diego
19h 14m
2 stops
DUB17:00Dublin
20 Mar
DUB08:50Dublin
15h 20m
1 stop
SAN17:10San Diego
€396
Find similar
British Airways
15 Feb
SAN18:00San Diego
17h 40m
1 stop
DUB19:40Dublin
20 Mar
DUB20:35Dublin
27h 35m
1 stop
SAN17:10San Diego
€400
Find similar

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 22 December 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 19/1

07:00-08:10

1 stop17h 10m

Dublin

Mon 26/1

10:40-21:53

2 stops19h 13m

€367

SacramentoDublin

SMF - DUB

SMFDUB

Sacramento Intl

Mon 19/1

07:00-08:10

1 stop17h 10m

Dublin

Mon 26/1

10:40-18:41

1 stop16h 01m

€377

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Mon 16/2

18:00-19:40

1 stop17h 40m

Dublin

Mon 23/2

08:50-16:10

1 stop15h 20m

€379

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Wed 14/1

18:05-07:10

2 stops29h 05m

Dublin

Wed 21/1

09:00-11:53

1 stop34h 53m

€384

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Sat 10/1

07:00-08:10

1 stop17h 10m

Dublin

Sat 17/1

09:00-15:04

2 stops38h 04m

€386

SacramentoDublin

SMF - DUB

SMFDUB

Sacramento Intl

Thu 29/1

07:00-08:10

1 stop17h 10m

Dublin

Mon 2/2

09:00-17:58

2 stops40h 58m

€389

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Tue 17/2

17:00-08:10

1 stop31h 10m

Dublin

Wed 18/3

08:00-11:53

1 stop34h 53m

€389

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Mon 16/2

12:40-07:10

1 stop34h 30m

Dublin

Sun 15/3

08:00-19:00

2 stops42h 00m

€391

SacramentoDublin

SMF - DUB

SMFDUB

Sacramento Intl

Thu 29/1

16:35-07:10

2 stops30h 35m

Dublin

Mon 2/2

09:00-18:41

2 stops41h 41m

€394

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Tue 10/3

15:19-17:00

2 stops18h 41m

Dublin

Fri 20/3

08:50-17:10

1 stop15h 20m

€396

Flights are sorted by cheapest return 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?

The month of January is another great option to travel to Ireland, with average flight prices from California averaging around €494.

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 Friday when prices can be found for as low as €421. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €580. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

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

In the morning is the cheapest time of day to fly from California to Ireland when you can find flight prices for as low as €464. Flying to Ireland in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is in the evening when prices are around €516.

What is the cheapest California to Ireland flight route?

Fly from San Francisco 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 €629 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from California for as low as €565 on momondo.

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

There are 2 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?

No. A direct flight is the cheapest option for a flight between California to Ireland.

Cheap California to Ireland flight deals and tips

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

Fastest flight time

9h 45m

Direct flights

Every day

Airports in Ireland

77 airports
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 refreshed on a daily basis.

  • 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Ireland.

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

    The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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
Aer LingusPriceFrom €420Free CancellationRating
7.2
1,408 reviews
Search Aer Lingus flights

Why use momondo?

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

It is quick and easy to find California to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.

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

Yes. All flights to Ireland from California on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Ireland from California. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for California to Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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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
Flights to Dublinfrom €38
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Flights to Donegalfrom €74
Flights to Milltown (Kerry)from €38