What is the cheapest airline that flies from Ireland to San Francisco?

Aer Lingus, WestJet, and American Airlines are the most popular carriers operating from Ireland to San Francisco

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

The number of flights available between Ireland and San Francisco is 3 per day as of September 2025. The most frequent departure time is 1:00PM, with 100% of daily flights leaving in the afternoon.

How long does it take to fly to San Francisco?

Flight times from Ireland to San Francisco vary, but if you’re flying out of Dublin and flying into San Francisco (one of the most popular routes), then the duration is 10h 55m on average. Another popular route from Ireland to San Francisco is flying from Cork to San Francisco, which will take roughly 13h 40m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to San Francisco?

Aer Lingus, American Airlines and United Airlines are the top three most popular airlines that fly to San Francisco from Ireland according to our data. Aer Lingus is the first choice among our users, with 64% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 4 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

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

As of September 2025, there are 24 flights per week flying from Ireland to San Francisco. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

When did momondo last update prices for flights from Ireland to San Francisco Airport?

Prices for flights from Ireland to San Francisco Airport were last updated today.

How many operators does momondo search for flights from Ireland to San Francisco Airport?

As of September 2025, there are 4 operators available to choose from for flights from Ireland to San Francisco Airport.

How old do you have to be to fly from Ireland to San Francisco Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The travel and health documents required for your trip to San Francisco Airport 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 license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$405 Cheap Flights from Ireland to San Francisco in 2025/26

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Find the cheapest flights from Ireland to San Francisco

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One-way

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Direct

Recent round-trip flight deals from Ireland to San Francisco

9:00 am - 4:00 pmDUB-SFO

15h 00m1 stop

7:00 am - 7:20 amSFO-DUB

16h 20m1 stop

$544Lufthansa

Find Deal

Wed, Oct 15 - Wed, Oct 22

12:30 pm - 11:12 pmDUB-SFO

42h 42m2 stops

4:40 pm - 6:20 pmSFO-DUB

17h 40m1 stop

$545Scandinavian Airlines

Find Deal

Tue, Feb 24 - Sat, Mar 7

10:20 am - 7:45 pmDUB-SFO

16h 25m1 stop

5:30 pm - 5:00 pmSFO-DUB

15h 30m1 stop

$565British Airways

Find Deal

Wed, Oct 29 - Wed, Nov 5

12:30 pm - 4:35 pmDUB-SFO

11h 05mnonstop

5:20 pm - 11:25 amSFO-DUB

10h 05mnonstop

$567Aer Lingus

Find Deal

Wed, Oct 29 - Wed, Nov 5

12:30 pm - 4:35 pmDUB-SFO

11h 05mnonstop

5:20 pm - 11:25 amSFO-DUB

10h 05mnonstop

$569Aer Lingus

Find Deal

Fri, Oct 31 - Fri, Nov 7

8:50 am - 4:00 pmDUB-SFO

14h 10m1 stop

8:40 pm - 7:45 pmSFO-DUB

15h 05m1 stop

$570American Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

8:50 am - 3:00 pmDUB-SFO

14h 10m1 stop

8:40 pm - 7:40 pmSFO-DUB

15h 00m1 stop

$571British Airways

Find Deal

Fri, Dec 19 - Sun, Jan 4

12:30 pm - 12:55 amSNN-SFO

20h 25m2 stops

10:50 am - 10:15 amSFO-SNN

15h 25m2 stops

$600United Airlines

Find Deal

Thu, Oct 2 - Tue, Oct 7

12:30 pm - 8:08 pmDUB-SFO

15h 38m1 stop

11:44 pm - 8:10 amSFO-DUB

25h 26m1 stop

$600United Airlines

Find Deal

Thu, Oct 2 - Wed, Oct 29

7:50 am - 6:45 pmSNN-SFO

18h 55m1 stop

6:30 pm - 4:45 pmSFO-SNN

15h 15m1 stop

$732American Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

Lufthansa flights from Ireland to San Francisco

Our best Lufthansa deals on Ireland to San Francisco flight tickets

Lufthansa

Oct 15

DUB9:00 amDublin

15h 00m

1 stop

SFO4:00 pmSan Francisco

Oct 22

SFO7:00 amSan Francisco

16h 20m

1 stop

DUB7:20 amDublin

$544

Find similar

Lufthansa

Oct 10

DUB1:35 pmDublin

14h 53m

1 stop

SFO8:28 pmSan Francisco

Oct 18

SFO1:02 pmSan Francisco

13h 18m

1 stop

DUB10:20 amDublin

$563

Find similar

Lufthansa

Sep 24

DUB5:55 amDublin

14h 45m

1 stop

SFO12:40 pmSan Francisco

Oct 8

SFO1:02 pmSan Francisco

13h 18m

1 stop

DUB10:20 amDublin

$576

Find similar

Scandinavian Airlines flights from Ireland to San Francisco

Our best Scandinavian Airlines deals on Ireland to San Francisco flight tickets

Scandinavian Airlines

Feb 24

DUB12:30 pmDublin

42h 42m

2 stops

SFO11:12 pmSan Francisco

Mar 7

SFO4:40 pmSan Francisco

17h 40m

1 stop

DUB6:20 pmDublin

$545

Find similar

Scandinavian Airlines

Nov 19

DUB11:30 amDublin

35h 05m

2 stops

SFO2:35 pmSan Francisco

Dec 3

SFO12:25 pmSan Francisco

39h 20m

2 stops

DUB11:45 amDublin

$550

Find similar

Scandinavian Airlines

Oct 29

DUB11:30 amDublin

38h 55m

2 stops

SFO7:25 pmSan Francisco

Nov 5

SFO12:35 pmSan Francisco

39h 10m

2 stops

DUB11:45 amDublin

$553

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 10/15

9:00 am-4:00 pm

1 stop15h 00m

San Francisco

Wed 10/22

7:00 am-7:20 am

1 stop16h 20m

$544

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 2/24

12:30 pm-11:12 pm

2 stops42h 42m

San Francisco

Sat 3/7

4:40 pm-6:20 pm

1 stop17h 40m

$545

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 10/29

10:20 am-7:45 pm

1 stop16h 25m

San Francisco

Wed 11/5

5:30 pm-5:00 pm

1 stop15h 30m

$565

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 10/29

12:30 pm-4:35 pm

Nonstop11h 05m

San Francisco

Wed 11/5

5:20 pm-11:25 am

Nonstop10h 05m

$567

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 10/31

12:30 pm-4:35 pm

Nonstop11h 05m

San Francisco

Fri 11/7

5:20 pm-11:25 am

Nonstop10h 05m

$569

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 10/29

8:50 am-4:00 pm

1 stop14h 10m

San Francisco

Wed 11/5

8:40 pm-7:45 pm

1 stop15h 05m

$570

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 12/19

8:50 am-3:00 pm

1 stop14h 10m

San Francisco

Sun 1/4

8:40 pm-7:40 pm

1 stop15h 00m

$571

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Thu 10/2

12:30 pm-12:55 am

2 stops20h 25m

San Francisco

Tue 10/7

10:50 am-10:15 am

2 stops15h 25m

$600

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 10/2

12:30 pm-8:08 pm

1 stop15h 38m

San Francisco

Wed 10/29

11:44 pm-8:10 am

1 stop25h 26m

$600

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Thu 3/5

7:50 am-6:45 pm

1 stop18h 55m

San Francisco

Mon 3/9

6:30 pm-4:45 pm

1 stop15h 15m

$732

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Ireland to San Francisco

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 San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $586.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Ireland to San Francisco is on a Thursday when prices can be found for as low as $693. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $753.

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

Our data shows that the cheapest Ireland to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $627. Flights at noon are often more expensive with an average ticket price of $739.

What is the cheapest Ireland to San Francisco flight route?

Fly from Dublin to San Francisco for the best Ireland - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $701 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Ireland for as low as $595 on momondo.

What cabin class options are available on Ireland to San Francisco flights?

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

You could potentially save up to 31% on your flight if you consider stops on a Ireland to San Francisco flight.

Cheap Ireland to San Francisco flight deals and tips

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

Best Price Found	$617
Fastest flight time	10h 55m
Direct flights	Every day
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from Ireland in the past 72 hours is $617. The best round-trip flight deal from Ireland to San Francisco found on momondo in the last 72 hours is $574.

The fastest flight from Ireland to San Francisco takes 10h 55m

Direct flights go from Ireland to San Francisco every day.

There is 1 airport near San Francisco: San Francisco (SFO)

Search flight deals

When did momondo last update prices for flights from Ireland to San Francisco Airport?
Prices for flights from Ireland to San Francisco Airport were last updated today.
How many operators does momondo search for flights from Ireland to San Francisco Airport?
As of September 2025, there are 4 operators available to choose from for flights from Ireland to San Francisco Airport.
How old do you have to be to fly from Ireland to San Francisco Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport 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 license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. 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 Ireland to San Francisco?
momondo data reveals that the most frequently booked plane model on the route from Ireland to San Francisco is Airbus A330-300, representing 55.17% of all bookings. The subsequent popular models are Airbus A330 at 23.98%, Airbus A330-200 at 8.38%, and Airbus A220-300 at 7.99%.

Best airlines flying from Ireland to San Francisco

Compare and see reviews for airlines that fly from Ireland to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $512	Free Cancellation	Rating 6.7 7,363 reviews	Search British Airways flights
Aer Lingus	PriceFrom $531	Free Cancellation	Rating 7.2 1,274 reviews	Search Aer Lingus flights
United Airlines	PriceFrom $544	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
American Airlines	PriceFrom $593	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Santa Cruz

Carmel-by-the-Sea

Modesto

Sonoma

Calistoga

Bodega Bay

Roseville

Hayward

Big Sur

Santa Clara

Daly City

Fremont

Berkeley

Half Moon Bay

Walnut Creek

Vallejo

Redwood City

Salinas

South San Francisco

Fairfield

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Ireland.

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

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

How can momondo help me find flights from Ireland to San Francisco?

momondo helps you find the best flight between Ireland and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to San Francisco from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Francisco 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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Cheap flights from Ireland to San Francisco from $405

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 San Francisco departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Ireland to San Francisco

Recent round-trip flight deals from Ireland to San Francisco

Recent one-way flight deals from Ireland to San Francisco

Recent last minute flight deals from Ireland to San Francisco

Recent direct flight deals from Ireland to San Francisco

Lufthansa flights from Ireland to San Francisco

Our best Lufthansa deals on Ireland to San Francisco flight tickets

Scandinavian Airlines flights from Ireland to San Francisco

Our best Scandinavian Airlines deals on Ireland to San Francisco flight tickets

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

See travel insights to San Francisco from

How to get the cheapest flight ticket from Ireland to San Francisco

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 San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $586.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Ireland to San Francisco is on a Thursday when prices can be found for as low as $693. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $753.

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

Our data shows that the cheapest Ireland to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $627. Flights at noon are often more expensive with an average ticket price of $739.

What is the cheapest Ireland to San Francisco flight route?

Fly from Dublin to San Francisco for the best Ireland - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

What cabin class options are available on Ireland to San Francisco flights?

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

You could potentially save up to 31% on your flight if you consider stops on a Ireland to San Francisco flight.

What is the cheapest airline that flies from Ireland to San Francisco?

Aer Lingus, WestJet, and American Airlines are the most popular carriers operating from Ireland to San Francisco

What airlines fly to San Francisco?

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

The number of flights available between Ireland and San Francisco is 3 per day as of September 2025. The most frequent departure time is 1:00PM, with 100% of daily flights leaving in the afternoon.

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

As of September 2025, there are 24 flights per week flying from Ireland to San Francisco. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How long does it take to fly to San Francisco?

Cheap Ireland to San Francisco flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in San Francisco

When did momondo last update prices for flights from Ireland to San Francisco Airport?

How many operators does momondo search for flights from Ireland to San Francisco Airport?

How old do you have to be to fly from Ireland to San Francisco Airport?

What documentation or ID do you need to fly to San Francisco Airport?

What is the most popular plane model from Ireland to San Francisco?

Best airlines flying from Ireland to San Francisco

Compare and see reviews for airlines that fly from Ireland to San Francisco with momondo

Traveling to a place near San Francisco?

Why use momondo?

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

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

How can momondo help me find flights from Ireland to San Francisco?

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

An easier way to manage your San Francisco 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 the United States

Airports servicing California