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Cheap flights from Ireland to San Francisco from £335

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
5 May — 12 May1
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 30 April 2025.

Round-trip from

£434

One-way from

£335

Popular in

July

Cheapest in

November

Average price

£477

Good round-trip deal

£427 or less
Air France
  • Air France
  • 22/5-3/6
  • 2 total stops
  • 32h 20m total
  • Ireland to San Francisco
18/5
  • 18/5
  • 2 total stops
  • 35h 14m total
  • Ireland to San Francisco
Highest demand for flights based on searches. 18% potential increase in price (£88 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in April 2025
Price to beat on a round-trip 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 30 April 2025.

Thu 22/505:55DUB - SFO
1 stop13h 50mMultiple Airlines
Tue 3/606:15SFO - DUB
1 stop18h 30mMultiple Airlines
Deal found 29/4£434
Mon 29/912:20DUB - SFO
2 stops36h 10mScandinavian Airlines
Wed 8/1019:40SFO - DUB
1 stop14h 35mScandinavian Airlines
Deal found 30/4£438
Sat 10/505:55DUB - SFO
1 stop13h 50mDelta
Mon 26/515:05SFO - DUB
1 stop15h 55mDelta
Deal found 29/4£444
Fri 9/509:20DUB - SFO
1 stop20h 26mUnited Airlines
Sun 25/510:35SFO - DUB
1 stop15h 45mUnited Airlines
Deal found 29/4£449
Sat 10/508:35DUB - SFO
1 stop16h 40mBritish Airways
Mon 26/516:20SFO - DUB
1 stop14h 20mBritish Airways
Deal found 30/4£454
Thu 22/513:00DUB - SFO
Nonstop10h 55mAer Lingus
Tue 3/617:45SFO - DUB
Nonstop10h 00mAer Lingus
Deal found 29/4£456
Tue 20/510:40DUB - SFO
1 stop16h 20mLufthansa
Tue 3/607:10SFO - DUB
1 stop16h 10mLufthansa
Deal found 29/4£462
Wed 21/509:20DUB - SFO
1 stop14h 15mAir Canada
Tue 3/605:05SFO - DUB
2 stops19h 10mAir Canada
Deal found 29/4£463
Tue 20/512:40DUB - SFO
2 stops19h 18mAmerican Airlines
Wed 4/607:03SFO - DUB
1 stop14h 27mAmerican Airlines
Deal found 29/4£471
Fri 9/508:45DUB - SFO
2 stops19h 18mSWISS
Sun 25/519:50SFO - DUB
2 stops32h 20mSWISS
Deal found 30/4£603
Thu 22/509:45DUB - SFO
2 stops39h 30mWestJet
Wed 4/607:30SFO - DUB
2 stops18h 30mWestJet
Deal found 29/4£693

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 30 April 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 22/5

05:55-11:45

1 stop13h 50m

San Francisco

Tue 3/6

06:15-08:45

1 stop18h 30m

£434

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 29/9

12:20-16:30

2 stops36h 10m

San Francisco

Wed 8/10

19:40-18:15

1 stop14h 35m

£438

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 10/5

05:55-11:45

1 stop13h 50m

San Francisco

Mon 26/5

15:05-15:00

1 stop15h 55m

£444

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 22/5

09:50-21:02

1 stop19h 12m

San Francisco

Sun 1/6

23:55-07:45

1 stop23h 50m

£453

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 10/5

08:35-17:15

1 stop16h 40m

San Francisco

Mon 26/5

16:20-14:40

1 stop14h 20m

£454

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 22/5

13:00-15:55

Nonstop10h 55m

San Francisco

Tue 3/6

17:45-11:45

Nonstop10h 00m

£456

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 20/5

10:40-19:00

1 stop16h 20m

San Francisco

Sun 1/6

13:00-10:20

1 stop13h 20m

£462

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 21/5

09:20-15:35

1 stop14h 15m

San Francisco

Tue 3/6

05:05-08:15

2 stops19h 10m

£463

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 20/5

12:40-23:58

2 stops19h 18m

San Francisco

Wed 4/6

07:03-05:30

1 stop14h 27m

£471

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 22/5

09:45-17:15

2 stops39h 30m

San Francisco

Wed 4/6

07:30-10:00

2 stops18h 30m

£693

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 20 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 30 April 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 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 30 April 2025.
Read through reviews of airlines operating flights from Ireland to San Francisco, such as Delta, United Airlines and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

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

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

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

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

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

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

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

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

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

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

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?

    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 £361 on WestJet. Other airlines that offer cheap prices include Vueling from £366 and Iberia from £403 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 Aer Lingus (93%), American Airlines (92%) and British Airways (91%).

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

    While on average a flight from Ireland to San Francisco is generally £553, our data shows the cheapest flight currently is £426. When looking at the most popular route, (Dublin - San Francisco), you can expect to pay £974 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
Los Banos
Vallejo
Newark
South San Francisco
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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£295Average£353FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£326Average£471FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£326Average£461FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£340Average£608FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£361Average£583FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest£394Average£540FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£402Average£500FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£409Average£579FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air FranceCheapest£445Average£599FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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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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