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Cheap flights from Ireland to San Francisco from £439

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
9 Jul — 16 Jul1
1 adult

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 4 July 2025.

Round-trip from

£469

One-way from

£439

Popular in

July

Cheapest in

February

Average price

£653

Good round-trip deal

£471 or less

Good one-way deal

£498 or less
Delta
  • Delta
  • 28/11-10/12
  • 4 total stops
  • 35h 19m total
  • Ireland to San Francisco
WestJet
  • WestJet
  • 8/10
  • 1 total stop
  • 16h 34m total
  • Ireland to San Francisco
Highest demand for flights based on searches. 15% potential increase in price (£69 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in July 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 4 July 2025.

Fri 28/1105:55DUB - SFO
2 stops17h 14mDelta
Wed 10/1206:00SFO - DUB
2 stops18h 05mDelta
Deal found 2/7£469
Mon 8/905:30DUB - SFO
2 stops43h 15mTAP AIR PORTUGAL
Mon 22/916:20SFO - DUB
1 stop17h 45mTAP AIR PORTUGAL
Deal found 4/7£472
Tue 23/1211:30DUB - SFO
2 stops59h 05mScandinavian Airlines
Mon 12/116:40SFO - DUB
1 stop35h 05mScandinavian Airlines
Deal found 2/7£478
Sat 8/1109:00DUB - SFO
2 stops19h 09mUnited Airlines
Sat 22/1107:25SFO - DUB
2 stops18h 55mUnited Airlines
Deal found 3/7£486
Wed 24/1210:45DUB - SFO
1 stop15h 51mKLM
Wed 31/1207:00SFO - DUB
1 stop17h 45mKLM
Deal found 3/7£499
Mon 22/1213:25DUB - SFO
1 stop30h 25mMultiple Airlines
Mon 12/115:50SFO - DUB
1 stop15h 50mMultiple Airlines
Deal found 3/7£509
Mon 25/809:00DUB - SFO
1 stop14h 55mLufthansa
Sun 7/913:10SFO - DUB
1 stop13h 10mLufthansa
Deal found 2/7£528
Mon 25/818:40DUB - SFO
1 stop29h 30mSWISS
Wed 10/911:35SFO - DUB
2 stops22h 15mSWISS
Deal found 3/7£536
Wed 17/913:00DUB - SFO
Nonstop10h 55mAmerican Airlines
Mon 22/919:20SFO - DUB
1 stop15h 00mAmerican Airlines
Deal found 4/7£538
Tue 11/1112:30DUB - SFO
Nonstop11h 05mAer Lingus
Tue 25/1117:20SFO - DUB
Nonstop10h 05mAer Lingus
Deal found 2/7£542

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 4 July 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

Fri 28/11

05:55-15:09

2 stops17h 14m

San Francisco

Wed 10/12

06:00-08:05

2 stops18h 05m

£469

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 8/9

05:30-16:45

2 stops43h 15m

San Francisco

Mon 22/9

16:20-18:05

1 stop17h 45m

£472

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 23/12

11:30-14:35

2 stops59h 05m

San Francisco

Mon 12/1

16:40-11:45

1 stop35h 05m

£478

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 8/11

09:00-20:09

2 stops19h 09m

San Francisco

Sat 22/11

07:25-10:20

2 stops18h 55m

£486

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 24/12

10:45-18:36

1 stop15h 51m

San Francisco

Wed 31/12

07:00-08:45

1 stop17h 45m

£499

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 22/12

13:25-11:50

1 stop30h 25m

San Francisco

Mon 12/1

15:50-15:40

1 stop15h 50m

£509

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 25/8

09:00-15:55

1 stop14h 55m

San Francisco

Sun 7/9

13:10-10:20

1 stop13h 10m

£528

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 25/8

18:40-16:10

1 stop29h 30m

San Francisco

Wed 10/9

11:35-17:50

2 stops22h 15m

£536

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 17/9

13:00-15:55

Nonstop10h 55m

San Francisco

Mon 22/9

19:20-18:20

1 stop15h 00m

£538

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 11/11

12:30-15:35

Nonstop11h 05m

San Francisco

Tue 25/11

17:20-11:25

Nonstop10h 05m

£542

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 19 results
1
2

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 return 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, February is the cheapest month in which you can book a flight from Ireland to San Francisco (average of £538). Flying from Ireland to San Francisco in July is currently the most expensive (average of £803). 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 4 July 2025.

When flying from Ireland to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 2% versus a flight in the morning.

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 4 July 2025.
Check out reviews from past customers who have flown with Delta, KLM, andFinnair from Ireland to San Francisco to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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
8.0
Very Good

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

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?

    Located just 11.8 mi from the city center, San Francisco (SFO) is the airport most travelers will use when flying to San Francisco from Ireland.

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

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

    One-way options have recently been found by users for as low as £439 on WestJet. Other airlines that offer cheap prices include JetBlue from £456 and TAP AIR PORTUGAL from £476 one-way.

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

    The top 3 most reliable airlines when flying from Ireland to San Francisco are American Airlines (78%), British Airways (78%) and Aer Lingus (77%).

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

    While on average a flight from Ireland to San Francisco is generally £530, our data shows the cheapest flight currently is £405. When looking at the most popular route, (Dublin - San Francisco), you can expect to pay £604 for that flight.

  • 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 holiday 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, February is the cheapest month in which you can book a flight from Ireland to San Francisco (average of £538). Flying from Ireland to San Francisco in July is currently the most expensive (average of £803). 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

Travelling to a place near Ireland?

Book flights to Ireland if you plan to visit one of these locations
Santa Cruz
Vallejo
Newark
South San Francisco
Bodega Bay
Pacific Grove
Union 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 9 airlines flying from Ireland to San Francisco

Discover the top 9 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 858,174 searches. Data last updated 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£290Average£346FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£321Average£528FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£326Average£468FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£334Average£578FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£395Average£491FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£405Average£555FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air FranceCheapest£409Average£580FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapest£432Average£590FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest£476Average£556FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to San Francisco?

Deals for Ireland to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ireland to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Ireland.

Can Cheapflights find flights from Ireland to San Francisco with no change fees?

Need flexible booking options for your flight to San Francisco from Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ireland to San Francisco become cheaper?

Of course! You can now track prices for flights from Ireland to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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