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$445+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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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 July 30, 2025.

Round-trip from

$578
(Delta)

One-way from

$445
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$912

Good round-trip deal

$628 or less

Good one-way deal

$572 or less
From Ireland to San Francisco
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One-way flight from Ireland to San Francisco
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Highest demand for flights based on searches. 16% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Ireland to San Francisco.
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Price to beat on a one-way flight from Ireland to San Francisco.
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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 July 30, 2025.

This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/45:55 amDUB - SFO
2 stops18h 00mDelta
Wed 9/177:05 amSFO - DUB
2 stops19h 20mDelta
Deal found 7/30$578
This Lufthansa deal was found by Cheapflights users on 7/28. 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.
Sat 9/65:55 amDUB - SFO
1 stop18h 05mLufthansa
Fri 9/191:20 pmSFO - DUB
1 stop19h 35mLufthansa
Deal found 7/28$581
This Scandinavian Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 9/610:15 amDUB - SFO
2 stops19h 54mScandinavian Airlines
Thu 9/187:40 pmSFO - DUB
1 stop29h 45mScandinavian Airlines
Deal found 7/28$584
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:50 amDUB - SFO
2 stops18h 01mAir Canada
Fri 9/197:10 amSFO - DUB
2 stops16h 35mAir Canada
Deal found 7/29$585
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/129:50 amDUB - SFO
2 stops19h 33mUnited Airlines
Fri 9/199:01 amSFO - DUB
2 stops18h 09mUnited Airlines
Deal found 7/29$589
This Finnair deal was found by Cheapflights users on 7/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:40 pmDUB - SFO
1 stop18h 35mFinnair
Wed 9/178:00 amSFO - DUB
1 stop17h 45mFinnair
Deal found 7/30$590
This Lufthansa deal was found by Cheapflights users on 7/28. 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.
Tue 9/212:30 pmSNN - SFO
1 stop16h 27mLufthansa
Tue 9/167:05 amSFO - SNN
1 stop19h 10mLufthansa
Deal found 7/28$592
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/11:00 pmDUB - SFO
Nonstop10h 55mAer Lingus
Sun 9/145:40 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 7/28$594
This lastminute.com deal was found by Cheapflights users on 7/30. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2610:40 amDUB - SFO
1 stop19h 35mJetBlue
Wed 9/36:00 amSFO - DUB
1 stop18h 20mJetBlue
Deal found 7/30$597
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 9/39:30 amSNN - SFO
2 stops15h 49mUnited Airlines
Tue 9/1610:35 amSFO - SNN
1 stop12h 55mUnited Airlines
Deal found 7/28$598
This Gotogate deal was found by Cheapflights users on 7/29. 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.
Sun 9/76:50 pmDUB - SFO
1 stop27h 40mTAP AIR PORTUGAL
Tue 9/234:20 pmSFO - DUB
1 stop23h 35mTAP AIR PORTUGAL
Deal found 7/29$615
This Lufthansa deal was found by Cheapflights users on 7/29. 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.
Mon 9/85:10 pmORK - SFO
2 stops33h 50mLufthansa
Tue 9/231:20 pmSFO - ORK
1 stop19h 05mLufthansa
Deal found 7/29$625

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 July 30, 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

Thu 9/4

5:55 am-3:55 pm

2 stops18h 00m

San Francisco

Wed 9/17

7:05 am-10:25 am

2 stops19h 20m

$578

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 9/6

5:55 am-4:00 pm

1 stop18h 05m

San Francisco

Fri 9/19

1:20 pm-4:55 pm

1 stop19h 35m

$581

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 9/6

10:15 am-10:09 pm

2 stops19h 54m

San Francisco

Thu 9/18

7:40 pm-9:25 am

1 stop29h 45m

$584

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 9/12

9:50 am-7:51 pm

2 stops18h 01m

San Francisco

Fri 9/19

7:10 am-7:45 am

2 stops16h 35m

$585

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 9/12

9:50 am-9:23 pm

2 stops19h 33m

San Francisco

Fri 9/19

9:01 am-11:10 am

2 stops18h 09m

$589

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 9/4

12:40 pm-11:15 pm

1 stop18h 35m

San Francisco

Wed 9/17

8:00 am-9:45 am

1 stop17h 45m

$590

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Tue 9/2

12:30 pm-8:57 pm

1 stop16h 27m

San Francisco

Tue 9/16

7:05 am-10:15 am

1 stop19h 10m

$592

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 9/1

1:00 pm-3:55 pm

Nonstop10h 55m

San Francisco

Sun 9/14

5:40 pm-11:45 am

Nonstop10h 05m

$594

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 8/26

10:40 am-10:15 pm

1 stop19h 35m

San Francisco

Wed 9/3

6:00 am-8:20 am

1 stop18h 20m

$597

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Wed 9/3

9:30 am-5:19 pm

2 stops15h 49m

San Francisco

Tue 9/16

10:35 am-7:30 am

1 stop12h 55m

$598

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 39 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 $358). 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 July 30, 2025.

It’s typically best to fly out from Ireland to San Francisco in the morning. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.

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 July 30, 2025.
Read through reviews of airlines operating flights from Ireland to San Francisco, such as Delta, KLM, and Finnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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?

    The Ireland to San Francisco flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $625. However, be on the lookout for offers from British Airways and Scandinavian Airlines, 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?

    The most popular route from Ireland to San Francisco is Dublin - San Francisco. You may also consider Cork - San Francisco or Shannon - 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 American Airlines (85%), British Airways (85%) or Aer Lingus (83%) 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 $559. On average you can expect to pay $1,463. The most popular route, (Dublin - San Francisco), can usually be booked for $438.

  • 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 $358). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Mountain View
Santa Cruz
South San Francisco
Livermore
Turlock
Manteca
Antioch
Hollister
Watsonville
Sunnyvale
Newark
Milpitas
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Capitola
Santa Clara
San Leandro
Burlingame
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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.
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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$481Average$598FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$512Average$611FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$544Average$778FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$549Average$706FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$593Average$853FlexibilityNo cancel feeOn-time71%

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