San Francisco

$275+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Feb 4 — Feb 111
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ireland to San Francisco with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ireland to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Ireland (IE0) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$446
(Mytrip)

One-way from

$275
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$656

Good round-trip deal

$639 or less

Good one-way deal

$597 or less
Provider with most accurate pricing for Dublin-San Francisco flight deals.
Provider most trusted by Cheapflights users for Dublin-San Francisco flights.
From Ireland to San Francisco
One-way flight from Ireland to San Francisco
Highest demand for flights based on searches. 22% potential increase in price ($198 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Average for round-trip flights in January 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 January 30, 2025.

This Mytrip deal was found by Cheapflights users on 1/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/711:15 amDUB - SFO
2 stops36h 25mScandinavian Airlines
Sun 3/96:30 pmSFO - DUB
1 stop34h 10mScandinavian Airlines
Deal found 1/30$446
This Gotogate deal was found by Cheapflights users on 1/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/711:05 amDUB - SFO
1 stop35h 50mTAP AIR PORTUGAL
Fri 2/217:15 pmSFO - DUB
1 stop31h 05mTAP AIR PORTUGAL
Deal found 1/30$518
This Delta deal was found by Cheapflights users on 1/30. 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.
Sun 2/165:55 amDUB - SFO
1 stop13h 55mDelta
Tue 3/412:35 pmSFO - DUB
2 stops19h 05mDelta
Deal found 1/30$520
This Kiwi.com deal was found by Cheapflights users on 1/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/712:30 pmDUB - SFO
Nonstop11h 00mMultiple Airlines
Fri 2/214:22 pmSFO - DUB
1 stop14h 08mMultiple Airlines
Deal found 1/30$545
This TravelUp deal was found by Cheapflights users on 1/30. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/261:25 pmDUB - SFO
1 stop30h 25mKLM
Tue 4/156:00 amSFO - DUB
1 stop18h 45mKLM
Deal found 1/30$551
This KLM deal was found by Cheapflights users on 1/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/31:25 pmORK - SFO
1 stop30h 25mKLM
Mon 3/172:50 pmSFO - ORK
1 stop24h 00mKLM
Deal found 1/30$554
This TravelUp deal was found by Cheapflights users on 1/30. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/229:10 amDUB - SFO
1 stop17h 05mAir France
Tue 6/36:15 amSFO - DUB
1 stop17h 30mAir France
Deal found 1/30$561
This Flighttix deal was found by Cheapflights users on 1/30. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/79:00 amDUB - SFO
1 stop14h 31mAir Canada
Fri 2/218:25 amSFO - DUB
1 stop14h 45mAir Canada
Deal found 1/30$576
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Wed 2/129:00 amDUB - SFO
1 stop14h 31mUnited Airlines
Wed 2/195:00 amSFO - DUB
2 stops18h 00mUnited Airlines
Deal found 1/29$591
This TravelUp deal was found by Cheapflights users on 1/29. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1011:55 amORK - SFO
1 stop35h 05mBritish Airways
Sun 2/236:04 pmSFO - ORK
2 stops18h 56mBritish Airways
Deal found 1/29$592
This Booking.com deal was found by Cheapflights users on 1/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/510:25 amDUB - SFO
1 stop16h 20mBritish Airways
Wed 2/125:30 pmSFO - DUB
1 stop18h 10mBritish Airways
Deal found 1/29$592
This SWISS deal was found by Cheapflights users on 1/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/126:40 pmDUB - SFO
1 stop29h 45mSWISS
Wed 2/197:25 pmSFO - DUB
1 stop32h 30mSWISS
Deal found 1/29$599

Find flights from Ireland to San Francisco within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 3/7

11:15 am-3:40 pm

2 stops36h 25m

San Francisco

Sun 3/9

6:30 pm-11:40 am

1 stop34h 10m

$446

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sun 2/16

5:55 am-11:50 am

1 stop13h 55m

San Francisco

Tue 3/4

12:35 pm-3:40 pm

2 stops19h 05m

$520

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 3/26

1:25 pm-12:50 pm

1 stop30h 25m

San Francisco

Tue 4/15

6:00 am-8:45 am

1 stop18h 45m

$551

CorkSan Francisco

ORK - SFO

ORKSFO

Cork

Mon 3/3

6:00 am-11:50 am

1 stop13h 50m

San Francisco

Mon 3/17

2:50 pm-9:50 pm

1 stop24h 00m

$554

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 5/22

9:10 am-6:15 pm

1 stop17h 05m

San Francisco

Tue 6/3

6:15 am-7:45 am

1 stop17h 30m

$561

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 4/30

10:45 am-2:35 pm

1 stop35h 50m

San Francisco

Fri 5/9

4:20 pm-12:05 am

1 stop23h 45m

$581

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 2/12

9:00 am-8:07 pm

1 stop19h 07m

San Francisco

Wed 2/19

11:59 pm-10:05 am

3 stops26h 06m

$591

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 3/7

8:40 am-3:00 pm

1 stop14h 20m

San Francisco

Thu 3/13

6:30 pm-2:45 pm

1 stop13h 15m

$592

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 2/12

6:40 pm-4:25 pm

1 stop29h 45m

San Francisco

Wed 2/19

7:25 pm-11:55 am

1 stop32h 30m

$599

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 3/3

8:40 am-12:22 am

2 stops23h 42m

San Francisco

Sat 3/8

11:00 pm-8:40 am

1 stop25h 40m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 39 results
1
2
3
4

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.

Travel insights for flights from Ireland to San Francisco

Get recent, data-driven insights about flights from Ireland to San Francisco including ideal travel times, pricing trends, and more.

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 $405). 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 January 30, 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 - 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 January 30, 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.
8.0
Very good

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
8.0
Very good

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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?

  • 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 $390. However, be on the lookout for offers from Aer Lingus and TAP AIR PORTUGAL, 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?

  • 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 (65%), Aer Lingus (65%) or British Airways (65%) 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 $537. On average you can expect to pay $952. The most popular route, (Dublin - San Francisco), can usually be booked for $443.

  • 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 $405). 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
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Elk Grove
Vallejo
Newark
Alameda
Campbell
Pacific Grove

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 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$502Average$741FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$516Average$642FlexibilityNo cancel feeOn-time70%
DeltaCheapest$538Average$614FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$544Average$770FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$612Average$806FlexibilityNo cancel feeOn-time71%
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.