Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ireland to San Francisco from £448

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
22 Jul — 29 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 17 July 2025.

Round-trip from

£448

Popular in

July

Cheapest in

February

Average price

£650

Good round-trip deal

£423 or less
Delta
  • Delta
  • 28/10-1/12
  • 3 total stops
  • 44h 00m total
  • Ireland to San Francisco
Highest demand for flights based on searches. 15% potential increase in price (£70 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 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.

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 17 July 2025.

Tue 28/1013:25DUB - SFO
2 stops28h 05mDelta
Mon 1/1215:50SFO - DUB
1 stop15h 55mDelta
Deal found 16/7£448
Tue 28/1009:45DUB - SFO
2 stops19h 22mFinnair
Sun 30/1110:24SFO - DUB
1 stop12h 51mFinnair
Deal found 16/7£462
Fri 18/710:40DUB - SFO
1 stop22h 19mJetBlue
Wed 23/706:00SFO - DUB
1 stop18h 20mJetBlue
Deal found 15/7£463
Tue 26/820:15DUB - SFO
2 stops28h 15mScandinavian Airlines
Wed 3/912:30SFO - DUB
2 stops21h 45mScandinavian Airlines
Deal found 16/7£476
Mon 1/905:30DUB - SFO
2 stops43h 15mTAP AIR PORTUGAL
Mon 15/916:20SFO - DUB
1 stop33h 40mTAP AIR PORTUGAL
Deal found 16/7£477
Mon 1/913:00DUB - SFO
Nonstop10h 55mAer Lingus
Sun 14/906:30SFO - DUB
1 stop16h 00mAer Lingus
Deal found 16/7£486
Sat 20/1213:30DUB - SFO
1 stop34h 55mSWISS
Wed 14/119:25SFO - DUB
1 stop14h 20mSWISS
Deal found 15/7£489
Mon 22/1209:10DUB - SFO
1 stop35h 30mLufthansa
Wed 14/107:15SFO - DUB
1 stop16h 15mLufthansa
Deal found 15/7£491
Mon 22/1209:30DUB - SFO
1 stop16h 04mUnited Airlines
Tue 13/110:40SFO - DUB
1 stop13h 30mUnited Airlines
Deal found 15/7£494
Fri 26/1209:00DUB - SFO
2 stops30h 50mAir Canada
Sat 3/118:52SFO - DUB
2 stops28h 18mAir Canada
Deal found 15/7£548

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 17 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

Tue 28/10

13:25-10:30

2 stops28h 05m

San Francisco

Mon 1/12

15:50-15:45

1 stop15h 55m

£448

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 28/10

09:45-22:07

2 stops19h 22m

San Francisco

Sun 30/11

10:24-07:15

1 stop12h 51m

£462

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 26/8

20:15-16:30

2 stops28h 15m

San Francisco

Wed 3/9

12:30-18:15

2 stops21h 45m

£476

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 1/9

05:30-16:45

2 stops43h 15m

San Francisco

Mon 15/9

16:20-10:00

1 stop33h 40m

£477

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 1/9

13:00-15:55

Nonstop10h 55m

San Francisco

Sun 14/9

06:30-06:30

1 stop16h 00m

£486

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 20/12

13:30-16:25

1 stop34h 55m

San Francisco

Wed 14/1

19:25-17:45

1 stop14h 20m

£489

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 22/12

09:10-12:40

1 stop35h 30m

San Francisco

Wed 14/1

07:15-07:30

1 stop16h 15m

£491

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 22/12

09:30-17:34

1 stop16h 04m

San Francisco

Tue 13/1

10:40-08:10

1 stop13h 30m

£494

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 26/12

09:00-07:50

2 stops30h 50m

San Francisco

Sat 3/1

18:52-07:10

2 stops28h 18m

£548

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 17/12

10:20-18:45

1 stop16h 25m

£463

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Showing 1-10 of 16 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 17 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 1% 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 17 July 2025.
Check out reviews from past customers who have flown with Delta, Finnair, andSWISS 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.

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
8.0
Very Good

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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?

    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 £463 on British Airways. Other airlines that offer cheap prices include WestJet from £485 and Aer Lingus from £524 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 (85%), British Airways (85%) and Aer Lingus (83%).

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

    While on average a flight from Ireland to San Francisco is generally £450, our data shows the cheapest flight currently is £409. When looking at the most popular route, (Dublin - San Francisco), you can expect to pay £538 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 San Francisco?

Book flights to San Francisco 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 17 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£295Average£357FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£327Average£538FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£332Average£473FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£340Average£584FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£402Average£500FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£412Average£567FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air FranceCheapest£416Average£591FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapest£440Average£601FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest£484Average£567FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.