San Francisco

$398+ Cheap flights from Ireland to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Mai 6 — Mai 131
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Cheap flight deals from Ireland to San Francisco

Keep the following information in mind while searching for Ireland to San Francisco flight deals. Data was last updated Mai 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$576
(Ticket)

One-way from

$398
(Cheapflightsfares)

Popular in

July

Cheapest in

November

Average price

$735

Good round-trip deal

$731 or less

Good one-way deal

$568 or less
Provider with most accurate pricing for Dublin-San Francisco flight deals.
Provider most trusted by Cheapflights users for Dublin-San Francisco flights.
From Ireland to San Francisco
One-way flight from Ireland to San Francisco
Highest demand for flights based on searches. 18% potential increase in price ($159 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Average for round-trip flights in May 2025
Price to beat on a round-trip flight from Ireland to San Francisco.
Price to beat on a one-way flight from Ireland to San Francisco.

Find flight deals from Ireland to San Francisco

Cheapest flights from Ireland to San Francisco
Explore the most affordable flight options available from Ireland to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Mai 1, 2025.

This Ticket deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 6/49:20 amDUB - SFO
1 stop14h 15mAir Canada
Mo 6/307:40 pmSFO - DUB
1 stop28h 05mAir Canada
Deal found 4/29$576
This TravelUp deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 5/225:55 amDUB - SFO
1 stop13h 50mMultiple Airlines
Di 6/36:15 amSFO - DUB
1 stop18h 30mMultiple Airlines
Deal found 4/29$582
This Scandinavian Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 9/2912:20 pmDUB - SFO
2 stops36h 10mScandinavian Airlines
Mi 10/87:40 pmSFO - DUB
1 stop14h 35mScandinavian Airlines
Deal found 4/30$588
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 5/105:55 amDUB - SFO
1 stop13h 50mDelta
Mo 5/263:05 pmSFO - DUB
1 stop15h 55mDelta
Deal found 4/29$596
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 5/99:20 amDUB - SFO
1 stop20h 26mUnited Airlines
So 5/2510:35 amSFO - DUB
1 stop15h 45mUnited Airlines
Deal found 4/29$602
This British Airways deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 5/108:35 amDUB - SFO
1 stop16h 40mBritish Airways
Mo 5/264:20 pmSFO - DUB
1 stop14h 20mBritish Airways
Deal found 4/30$609
This Expedia deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 5/221:00 pmDUB - SFO
Nonstop10h 55mAer Lingus
Di 6/35:45 pmSFO - DUB
Nonstop10h 00mAer Lingus
Deal found 4/29$612
This Lufthansa deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/2010:40 amDUB - SFO
1 stop16h 20mLufthansa
So 6/11:00 pmSFO - DUB
1 stop13h 20mLufthansa
Deal found 4/29$619
This SWISS deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 5/164:50 pmORK - SFO
1 stop31h 20mSWISS
Do 5/2911:30 amSFO - ORK
2 stops20h 30mSWISS
Deal found 4/30$623
This Gotogate deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 11/94:25 amDUB - SFO
1 stop18h 20mTAP AIR PORTUGAL
Mi 11/194:35 pmSFO - DUB
1 stop33h 45mTAP AIR PORTUGAL
Deal found 4/29$623
This Lufthansa deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 5/812:30 pmSNN - SFO
1 stop17h 11mLufthansa
Mo 5/1210:58 pmSFO - SNN
2 stops27h 17mLufthansa
Deal found 4/29$624
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 5/812:30 pmSNN - SFO
2 stops18h 15mUnited Airlines
Mo 5/1210:35 amSFO - SNN
2 stops15h 40mUnited Airlines
Deal found 4/29$630

Cheapflights Fare Finder

Customize your flight search to find flights from Ireland to San Francisco 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, Cheapflights users made 2,558,603 searches. Data last updated Mai 1, 2025.
Use the filters below to find and compare flights from Ireland to San Francisco that are best for you.

Fly from

Ireland

Fly to

San Francisco

Route

Depart

Return

Price

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mi 6/4

9:20 am-3:35 pm

1 stop14h 15m

San Francisco

Mo 6/30

7:40 pm-7:45 am

1 stop28h 05m

$576

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Do 5/22

5:55 am-11:45 am

1 stop13h 50m

San Francisco

Di 6/3

6:15 am-8:45 am

1 stop18h 30m

$582

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mo 9/29

12:20 pm-4:30 pm

2 stops36h 10m

San Francisco

Mi 10/8

7:40 pm-6:15 pm

1 stop14h 35m

$588

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sa 5/10

5:55 am-11:45 am

1 stop13h 50m

San Francisco

Mo 5/26

3:05 pm-3:00 pm

1 stop15h 55m

$596

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Do 5/22

9:50 am-9:02 pm

1 stop19h 12m

San Francisco

So 6/1

11:55 pm-7:45 am

1 stop23h 50m

$608

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sa 5/10

8:35 am-5:15 pm

1 stop16h 40m

San Francisco

Mo 5/26

4:20 pm-2:40 pm

1 stop14h 20m

$609

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Do 5/22

1:00 pm-3:55 pm

Nonstop10h 55m

San Francisco

Di 6/3

5:45 pm-11:45 am

Nonstop10h 00m

$612

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Di 5/20

10:40 am-7:00 pm

1 stop16h 20m

San Francisco

So 6/1

1:00 pm-10:20 am

1 stop13h 20m

$619

CorkSan Francisco

ORK - SFO

ORKSFO

Cork

Fr 5/16

4:50 pm-4:10 pm

1 stop31h 20m

San Francisco

Do 5/29

11:30 am-4:00 pm

2 stops20h 30m

$623

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Fr 5/23

12:30 pm-9:40 pm

1 stop17h 10m

San Francisco

Mi 5/28

9:16 pm-10:15 am

2 stops28h 59m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 43 results
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Best time to book a flight from Ireland to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Ireland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ireland to San Francisco

What is the cheapest month to book a flight from Ireland to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Ireland to San Francisco (average of $276). Flying from Ireland to San Francisco in June is currently the most expensive (average of $384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IE to SFO?

Find hourly flight availability from Ireland to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Mai 1, 2025.

When flying from Ireland to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated Mai 1, 2025.
See what other customers who have flown with Delta, KLM and Air Transat from Ireland to San Francisco have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very good
8.0
Very good

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very good

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very good

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very good

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very good

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Ireland to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to San Francisco from Ireland?

    San Francisco (SFO) is the airport you will fly into if you book a flight from Ireland to San Francisco. It is only a 11.8 mi journey from San Francisco (SFO) to San Francisco’s city center.

  • How popular is this Ireland to San Francisco flight route?

  • What are the cheapest airlines to fly from Ireland to San Francisco one-way?

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $398. However, be on the lookout for offers from TAP AIR PORTUGAL and Iberia, as they are both options that can get you from Ireland to San Francisco for a low price.

  • What are the most popular routes from Ireland to San Francisco?

  • What are the most reliable airlines from Ireland to San Francisco?

    No one likes to see their flight delayed. When booking a flight from Ireland to San Francisco consider choosing Aer Lingus (93%), American Airlines (92%) or British Airways (91%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Ireland to San Francisco?

    The cheapest flight price from Ireland to San Francisco is $561. On average you can expect to pay $1,200. The most popular route, (Dublin - San Francisco), can usually be booked for $487.

  • Can I find deals for flights from Ireland to San Francisco that include hotel bookings?

    Yes. In addition to deals on Ireland to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ireland to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to San Francisco.

  • Can I find deals for business class flights from Ireland to San Francisco?

    Yes. Cheapflights offers flight deals from Ireland to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ireland to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Ireland to San Francisco (average of $276). Flying from Ireland to San Francisco in June is currently the most expensive (average of $384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ireland?

Book flights to Ireland if you plan to visit one of these locations
Roseville
Mountain View
Santa Cruz
Livermore
South San Francisco
Turlock
Manteca
Fairfield
Richmond
Watsonville
Hollister
Newark
Milpitas
Antioch
Sausalito
Hayward
Alameda
Sunnyvale
Campbell
Daly City

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ireland to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ireland to San Francisco

Discover the top 5 airlines that operate flights from Ireland to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Mai 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$512Average$619FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$530Average$728FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$544Average$768FlexibilityNo cancel feeOn-time69%
DeltaCheapest$554Average$604FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$593Average$853FlexibilityNo cancel feeOn-time71%

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