What airlines fly to Ireland?

Aer Lingus, American Airlines and United Airlines are the top three most popular airlines that fly to Ireland from California according to our data. Aer Lingus is the first choice among our users, with 73% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 16 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

How many flights depart from California to Ireland on average per day?

2 flights are operational daily from California to Ireland as of October 2025. The most popular departure time for this route is 9:00PM, with 76% of flights per day taking off in the evening.

How long is the flight from California to Ireland?

Flight times from California to Ireland vary, but if you’re flying out of San Francisco and flying into Dublin (one of the most popular routes), then the duration is 10h on average. Another popular route from California to Ireland is flying from Los Angeles to Dublin, which will take roughly 10h 15m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from California to Ireland on average per week?

As of October 2025, there are 14 flights per week flying from California to Ireland. The most common day of the week flights depart is Thu, with 50% of flights taking off on this day.

What is the cheapest airline that flies from California to Ireland?

Scandinavian Airlines and JetBlue are the most popular carriers operating from California to Ireland

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?

As of October 2025, there are 17 operators available to choose from 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.

$267 Cheap Flights from California to Ireland in 2025/26

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6:00 pm - 7:40 pmSAN-DUB

17h 40m1 stop

8:50 am - 4:10 pmDUB-SAN

15h 20m1 stop

$402British Airways

Find Deal

Sun, Jan 18 - Thu, Feb 12

6:00 pm - 7:40 pmSAN-DUB

17h 40m1 stop

8:50 am - 4:10 pmDUB-SAN

15h 20m1 stop

$407British Airways

Find Deal

Tue, Feb 3 - Wed, Feb 11

6:00 pm - 3:40 pmSAN-DUB

13h 40m1 stop

11:30 am - 7:02 pmDUB-SAN

15h 32m1 stop

$416American Airlines

Find Deal

Mon, Nov 24 - Tue, Dec 9

6:00 pm - 5:45 pmSAN-DUB

15h 45m1 stop

6:40 am - 4:10 pmDUB-SAN

17h 30m1 stop

$417American Airlines

Find Deal

Wed, Jan 21 - Fri, Feb 6

2:05 pm - 7:45 amSMF-DUB

33h 40m1 stop

9:45 am - 8:39 pmDUB-SMF

18h 54m1 stop

$425Delta

Find Deal

Mon, Nov 10 - Tue, Nov 25

11:02 am - 7:45 amSAN-DUB

12h 43m1 stop

9:45 am - 11:14 amDUB-SAN

33h 29m1 stop

$425Delta

Find Deal

Mon, Nov 24 - Tue, Dec 9

8:25 am - 7:15 amSAN-DUB

14h 50m1 stop

6:05 pm - 7:12 pmDUB-SAN

33h 07m2 stops

$430Multiple Airlines

Find Deal

Tue, Jan 6 - Tue, Jan 13

7:10 am - 7:15 amSAN-DUB

16h 05m1 stop

11:30 am - 10:58 pmDUB-SAN

19h 28m1 stop

$433Multiple Airlines

Find Deal

Tue, Jan 6 - Tue, Jan 13

5:00 pm - 8:10 amSAN-DUB

31h 10m1 stop

9:00 am - 11:53 amDUB-SAN

34h 53m1 stop

$456United Airlines

Find Deal

Mon, Feb 16 - Sun, Feb 22

11:08 am - 8:10 amSAN-DUB

37h 02m2 stops

9:00 am - 11:53 amDUB-SAN

34h 53m1 stop

$461United Airlines

Find Deal

Sun, Jan 18 - Fri, Feb 13

United Airlines flights from California to Ireland

Our best United Airlines deals on California to Ireland flight tickets

United Airlines

Feb 16

SAN5:00 pmSan Diego

31h 10m

1 stop

DUB8:10 amDublin

Feb 22

DUB9:00 amDublin

34h 53m

1 stop

SAN11:53 amSan Diego

$456

Find similar

United Airlines

Jan 18

SAN11:08 amSan Diego

37h 02m

2 stops

DUB8:10 amDublin

Feb 13

DUB9:00 amDublin

34h 53m

1 stop

SAN11:53 amSan Diego

$461

Find similar

United Airlines

Jan 17

SAN4:10 pmSan Diego

32h 00m

2 stops

DUB8:10 amDublin

Feb 13

DUB9:00 amDublin

34h 53m

1 stop

SAN11:53 amSan Diego

$466

Find similar

Aer Lingus flights from California to Ireland

Our best Aer Lingus deals on California to Ireland flight tickets

Aer Lingus

Nov 5

LAX3:55 pmLos Angeles

10h 10m

DUB10:05 amDublin

Nov 13

DUB3:20 pmDublin

11h 10m

LAX6:30 pmLos Angeles

$531

Find similar

Aer Lingus

Nov 26

LAX8:15 pmLos Angeles

10h 15m

DUB2:30 pmDublin

Dec 3

DUB3:20 pmDublin

11h 10m

LAX6:30 pmLos Angeles

$533

Find similar

Aer Lingus

Jan 21

LAX8:15 pmLos Angeles

10h 15m

DUB2:30 pmDublin

Jan 28

DUB3:20 pmDublin

11h 10m

LAX6:30 pmLos Angeles

$538

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Sun 1/18

6:00 pm-7:40 pm

1 stop17h 40m

Dublin

Thu 2/12

8:50 am-4:10 pm

1 stop15h 20m

$402

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Tue 2/3

6:00 pm-7:40 pm

1 stop17h 40m

Dublin

Wed 2/11

8:50 am-4:10 pm

1 stop15h 20m

$407

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Mon 11/24

6:00 pm-3:40 pm

1 stop13h 40m

Dublin

Tue 12/9

11:30 am-7:02 pm

1 stop15h 32m

$416

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Wed 1/21

6:00 pm-5:45 pm

1 stop15h 45m

Dublin

Fri 2/6

6:40 am-4:10 pm

1 stop17h 30m

$417

SacramentoDublin

SMF - DUB

SMFDUB

Sacramento Intl

Mon 11/10

2:05 pm-7:45 am

1 stop33h 40m

Dublin

Tue 11/25

9:45 am-8:39 pm

1 stop18h 54m

$425

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Mon 11/24

11:02 am-7:45 am

1 stop12h 43m

Dublin

Tue 12/9

9:45 am-11:14 am

1 stop33h 29m

$425

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Tue 1/6

8:25 am-7:15 am

1 stop14h 50m

Dublin

Tue 1/13

6:05 pm-7:12 pm

2 stops33h 07m

$430

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Tue 1/6

7:10 am-7:15 am

1 stop16h 05m

Dublin

Tue 1/13

11:30 am-10:58 pm

1 stop19h 28m

$433

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Mon 2/16

5:00 pm-8:10 am

1 stop31h 10m

Dublin

Sun 2/22

9:00 am-11:53 am

1 stop34h 53m

$456

San DiegoDublin

SAN - DUB

SANDUB

San Diego

Sun 1/18

11:08 am-8:10 am

2 stops37h 02m

Dublin

Fri 2/13

9:00 am-11:53 am

1 stop34h 53m

$461

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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

Prices

Airlines

Other information

What is the cheapest month to fly to Ireland?

In general, January 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 $562. If you aren’t able to travel to Ireland during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $565.

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 Wednesday when prices can be found for as low as $721. 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 $847. 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 $760. 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 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 $719 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 $639 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 26% 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	$468
Fastest flight time	9h 45m
Direct flights	Every day
Airports in Ireland	1 airport

The best one-way flight to Ireland from California in the past 72 hours is $468. The best round-trip flight deal from California to Ireland found on momondo in the last 72 hours is $647.

The fastest flight from California to Ireland takes 9h 45m

Direct flights go from California to Ireland every day.

There is 1 airport near Ireland: 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?
As of October 2025, there are 17 operators available to choose from 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?
Based on momondo bookings for flights between California and Ireland, the leading plane model is Airbus A330-300, making up 23.43% of the total bookings. Other popular models include Airbus A330 with 15.62%, Airbus A330-200 with 13.00%, and Boeing 777-300ER with 11.98%.

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
JetBlue	PriceFrom $415	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
Scandinavian Airlines	PriceFrom $421	Free Cancellation	Rating 7.4 1,545 reviews	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	PriceFrom $431	Free Cancellation	Rating 7.1 2,037 reviews	Search TAP AIR PORTUGAL flights
Delta	PriceFrom $455	Free Cancellation	Rating 7.9 7,993 reviews	Search Delta flights
Aer Lingus	PriceFrom $456	Free Cancellation	Rating 7.2 1,361 reviews	Search Aer Lingus flights
American Airlines	PriceFrom $485	Free Cancellation	Rating 7.2 11,032 reviews	Search American Airlines flights
Air Canada	PriceFrom $490	Free Cancellation	Rating 7.1 10,378 reviews	Search Air Canada flights
United Airlines	PriceFrom $490	Free Cancellation	Rating 7.4 8,998 reviews	Search United Airlines flights
Lufthansa	PriceFrom $492	Free Cancellation	Rating 6.8 7,541 reviews	Search Lufthansa flights
British Airways	PriceFrom $495	Free Cancellation	Rating 6.7 7,487 reviews	Search British Airways 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

Flights to Dublinfrom $297

Flights to Shannon, Clarefrom $346

Flights to Corkfrom $392

Flights to Knockfrom $592

Flights to Milltown (Kerry)from $415

Flights to Donegalfrom $454

Cheap flights from California to Ireland from $267

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 1/25. 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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United Airlines flights from California to Ireland

Our best United Airlines deals on California to Ireland flight tickets

Aer Lingus flights from California to Ireland

Our best Aer Lingus deals on California to Ireland flight tickets

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Use the filters below to find and compare flights from California to Ireland that are best for you.

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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?

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

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

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?

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 26% on your flight if you consider stops on a California to Ireland flight.

What is the cheapest airline that flies from California to Ireland?

Scandinavian Airlines and JetBlue are the most popular carriers operating from California to Ireland

What airlines fly to Ireland?

How many flights depart from California to Ireland on average per day?

2 flights are operational daily from California to Ireland as of October 2025. The most popular departure time for this route is 9:00PM, with 76% of flights per day taking off in the evening.

How many flights depart from California to Ireland on average per week?

As of October 2025, there are 14 flights per week flying from California to Ireland. The most common day of the week flights depart is Thu, with 50% of flights taking off on this day.

How long is the flight from 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

Best Price Found

Fastest flight time

Direct flights

Airports in Ireland

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

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?

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

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

Why use momondo?

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

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

How can momondo help me find flights 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?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular cities in Ireland

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