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$527+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$562
(Delta)

One-way from

$527
(Cheapflightsfares)

Popular in

July

Cheapest in

February

Average price

$806

Good round-trip deal

$671 or less

Good one-way deal

$581 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. 15% potential increase in price ($133 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 June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 9/166:00 amORK - SFO
1 stop13h 45mDelta
Fri 9/2611:05 amSFO - ORK
2 stops19h 35mDelta
Deal found 6/11$562
This Lufthansa deal was found by Cheapflights users on 6/10. 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 9/155:10 pmORK - SFO
1 stop27h 30mLufthansa
Sun 9/282:40 pmSFO - ORK
1 stop17h 45mLufthansa
Deal found 6/10$564
This KLM deal was found by Cheapflights users on 6/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:05 pmORK - SFO
1 stop26h 40mKLM
Fri 9/261:45 pmSFO - ORK
1 stop24h 40mKLM
Deal found 6/10$581
This Flysmarter deal was found by Cheapflights users on 6/9. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/911:45 amDUB - SFO
1 stop17h 10mBritish Airways
Tue 7/224:35 pmSFO - DUB
1 stop16h 30mBritish Airways
Deal found 6/9$653
This Delta deal was found by Cheapflights users on 6/10. 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.
Fri 10/36:00 amDUB - SFO
2 stops20h 50mDelta
Thu 10/912:40 amSFO - DUB
1 stop23h 15mDelta
Deal found 6/10$655
This oojo deal was found by Cheapflights users on 6/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/177:05 pmDUB - SFO
2 stops37h 15mScandinavian Airlines
Tue 6/247:40 pmSFO - DUB
1 stop32h 10mScandinavian Airlines
Deal found 6/11$658
This CheapOair deal was found by Cheapflights users on 6/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/161:00 pmDUB - SFO
Nonstop10h 55mAer Lingus
Sat 10/251:20 pmSFO - DUB
1 stop13h 20mAer Lingus
Deal found 6/12$659
This Expedia deal was found by Cheapflights users on 6/11. 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.
Thu 7/312:40 pmDUB - SFO
1 stop16h 20mMultiple Airlines
Sat 8/97:20 pmSFO - DUB
1 stop28h 25mMultiple Airlines
Deal found 6/11$672
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/812:40 pmDUB - SFO
1 stop18h 07mAmerican Airlines
Tue 7/227:20 pmSFO - DUB
1 stop13h 45mAmerican Airlines
Deal found 6/11$678
This Booking.com deal was found by Cheapflights users on 6/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/209:45 amDUB - SFO
2 stops34h 09mWestJet
Sat 10/112:45 pmSFO - DUB
3 stops33h 40mWestJet
Deal found 6/11$683
This Iberia deal was found by Cheapflights users on 6/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/411:45 amDUB - SFO
1 stop20h 23mIberia
Sun 8/106:10 amSFO - DUB
1 stop21h 30mIberia
Deal found 6/12$691
This SWISS deal was found by Cheapflights users on 6/10. 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.
Sun 12/216:35 pmDUB - SFO
1 stop29h 50mSWISS
Mon 1/127:25 pmSFO - DUB
1 stop32h 35mSWISS
Deal found 6/10$712

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 June 12, 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

CorkSan Francisco

ORK - SFO

ORKSFO

Cork

Tue 9/16

6:00 am-11:45 am

1 stop13h 45m

San Francisco

Fri 9/26

11:05 am-2:40 pm

2 stops19h 35m

$562

CorkSan Francisco

ORK - SFO

ORKSFO

Cork

Mon 9/15

5:10 pm-12:40 pm

1 stop27h 30m

San Francisco

Sun 9/28

2:40 pm-4:25 pm

1 stop17h 45m

$564

CorkSan Francisco

ORK - SFO

ORKSFO

Cork

Tue 9/16

5:05 pm-11:45 am

1 stop26h 40m

San Francisco

Fri 9/26

1:45 pm-10:25 pm

1 stop24h 40m

$581

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 7/9

1:45 pm-8:23 pm

1 stop14h 38m

San Francisco

Tue 7/22

4:44 pm-5:05 pm

2 stops16h 21m

$653

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 10/3

6:00 am-6:50 pm

2 stops20h 50m

San Francisco

Thu 10/9

12:40 am-7:55 am

1 stop23h 15m

$655

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 10/16

1:00 pm-3:55 pm

Nonstop10h 55m

San Francisco

Sat 10/25

1:20 pm-10:40 am

1 stop13h 20m

$659

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 7/3

12:40 pm-9:00 pm

1 stop16h 20m

San Francisco

Sat 8/9

7:20 pm-7:45 am

1 stop28h 25m

$672

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 7/8

12:40 pm-10:47 pm

1 stop18h 07m

San Francisco

Tue 7/22

7:20 pm-5:05 pm

1 stop13h 45m

$678

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 9/20

9:45 am-11:54 am

2 stops34h 09m

San Francisco

Sat 10/11

2:45 pm-8:25 am

3 stops33h 40m

$683

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 8/4

11:45 am-12:08 am

1 stop20h 23m

San Francisco

Sun 8/10

6:10 am-11:40 am

1 stop21h 30m

$691

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 51 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 $364). 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 June 12, 2025.

It’s typically best to fly out from Ireland to San Francisco in the morning. Doing so could potentially save you 12% on the flight price compared to flying at noon, which is usually more expensive.

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 June 12, 2025.
See what other customers who have flown with Delta, KLM and SWISS 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.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
1,623 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
JetBlue
7.3
Good
2,925 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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 Aer Lingus, with whom users have recently found tickets for as low as $527. However, be on the lookout for offers from WestJet and JetBlue, 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%), Aer Lingus (84%) or British Airways (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 $573. On average you can expect to pay $1,494. The most popular route, (Dublin - San Francisco), can usually be booked for $408.

  • 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 $364). 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
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$481Average$598FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$512Average$611FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$537Average$711FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$544Average$762FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$593Average$853FlexibilityNo cancel feeOn-time71%

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