San Francisco

$497+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Jun 18 — Jun 251
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Cheap 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 May 19, 2026.

This KLM deal was found by Cheapflights users on 5/15. 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.
Fri 6/195:55 am
DUB
-
SFO
1 stop13h 50m
Multiple Airlines
Sat 6/276:00 am
SFO
-
DUB
1 stop17h 55m
Multiple Airlines
Deal found 5/15$627
This Delta deal was found by Cheapflights users on 5/18. 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.
Thu 6/1811:10 am
DUB
-
SFO
2 stops17h 09m
Delta
Fri 6/269:56 pm
SFO
-
DUB
1 stop26h 49m
Delta
Deal found 5/18$629
This Delta deal was found by Cheapflights users on 5/14. 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 5/245:55 am
DUB
-
SFO
1 stop13h 50m
Delta
Tue 6/91:38 pm
SFO
-
DUB
2 stops19h 02m
Delta
Deal found 5/14$630
This Delta deal was found by Cheapflights users on 5/18. 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.
Mon 5/255:55 am
DUB
-
SFO
2 stops18h 01m
Delta
Mon 6/85:25 pm
SFO
-
DUB
2 stops15h 15m
Delta
Deal found 5/18$631
This Delta deal was found by Cheapflights users on 5/15. 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 6/1911:10 am
DUB
-
SFO
2 stops20h 56m
Delta
Sat 6/2710:55 pm
SFO
-
DUB
1 stop27h 05m
Delta
Deal found 5/15$632
This Delta deal was found by Cheapflights users on 5/14. 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 6/75:55 am
DUB
-
SFO
1 stop13h 50m
Delta
Fri 6/1210:55 pm
SFO
-
DUB
1 stop27h 05m
Delta
Deal found 5/14$634
This Delta deal was found by Cheapflights users on 5/14. 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.
Thu 5/2111:10 am
DUB
-
SFO
2 stops20h 55m
Delta
Wed 6/35:50 am
SFO
-
DUB
2 stops18h 30m
Delta
Deal found 5/14$635
This FlightHub deal was found by Cheapflights users on 5/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:50 pm
DUB
-
SFO
Nonstop11h 00m
Aer Lingus
Sat 6/205:40 pm
SFO
-
DUB
Nonstop10h 05m
Aer Lingus
Deal found 5/16$636
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 5/2212:50 pm
DUB
-
SFO
Nonstop11h 00m
Aer Lingus
Sat 6/65:40 pm
SFO
-
DUB
Nonstop10h 05m
Aer Lingus
Deal found 5/15$637
This American Airlines deal was found by Cheapflights users on 5/18. 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.
Thu 5/2811:45 am
DUB
-
SFO
1 stop16h 25m
American Airlines
Wed 6/176:45 am
SFO
-
DUB
1 stop19h 00m
American Airlines
Deal found 5/18$639
This Delta deal was found by Cheapflights users on 5/15. 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.
Sat 5/231:05 pm
SNN
-
SFO
1 stop17h 44m
Delta
Wed 5/2711:31 am
SFO
-
SNN
1 stop15h 39m
Delta
Deal found 5/15$640
This KLM deal was found by Cheapflights users on 5/17. 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 6/155:10 pm
ORK
-
SFO
1 stop26h 35m
KLM
Tue 6/3010:35 am
SFO
-
ORK
2 stops15h 45m
KLM
Deal found 5/17$743

Find 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 May 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$627
(KLM)

One-way from

$497
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$786

Good round-trip deal

$724 or less

Good one-way deal

$637 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. 17% potential increase in price ($151 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 May 2026
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.

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 May 19, 2026.
Use the filters below to find and compare flights from Ireland to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 6/4

5:55 am-11:45 am

1 stop13h 50m

San Francisco

Wed 6/24

5:55 am-10:25 am

2 stops20h 30m

$629

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 6/13

5:55 am-12:50 pm

1 stop14h 55m

San Francisco

Tue 6/23

5:55 am-10:25 am

2 stops20h 30m

$633

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 6/15

5:55 am-6:58 pm

2 stops21h 03m

San Francisco

Mon 6/22

9:56 pm-8:45 am

1 stop26h 49m

$634

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 6/15

7:05 pm-12:06 am

2 stops37h 01m

San Francisco

Sun 8/30

4:45 pm-7:05 pm

2 stops18h 20m

$731

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 6/2

11:00 am-2:40 pm

2 stops35h 40m

San Francisco

Tue 12/8

7:00 am-11:45 am

2 stops20h 45m

$731

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 6/8

9:30 am-11:58 pm

1 stop22h 28m

San Francisco

Fri 7/31

8:00 am-9:45 am

1 stop17h 45m

$740

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 6/8

5:55 am-6:13 pm

2 stops20h 18m

San Francisco

Fri 7/31

10:35 pm-9:15 am

1 stop26h 40m

$743

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 8/13

7:05 pm-2:40 pm

1 stop27h 35m

San Francisco

Thu 8/27

4:45 pm-9:25 am

1 stop32h 40m

$745

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 6/20

9:30 am-11:57 pm

1 stop22h 27m

San Francisco

Sun 7/12

8:00 am-9:45 am

1 stop17h 45m

$746

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Wed 6/24

1:05 pm-6:30 pm

1 stop37h 25m

San Francisco

Tue 7/14

7:50 am-11:10 am

2 stops19h 20m

$756

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/18

Showing 1-10 of 45 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Ireland to San Francisco?

To ensure you get the cheapest price possible for a flight from Ireland to San Francisco, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Ireland to San Francisco?

Currently, October is the cheapest month in which you can book a flight from Ireland to San Francisco (average of $285). Flying from Ireland to San Francisco in July is currently the most expensive (average of $672). 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 May 19, 2026.

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.

Weekly flight availability from Ireland to San Francisco

Explore weekly flight availability from Ireland to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 19, 2026.

The most flights from IE0 to SFO are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

How often are flights from Ireland to San Francisco delayed?

About 12% of weekly flights between Ireland and San Francisco have experienced delays in the past year, with the average delay time being 136 minutes.

What is the most punctual flight time for Ireland to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to San Francisco flights?

Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 12% of flights being delayed.

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 May 19, 2026.
Read through reviews of airlines operating flights from Ireland to San Francisco, such as United Airlines and Aer Lingus. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 11.0 mi journey from San Francisco (SFO) to San Francisco’s city center.

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

  • How long is the flight from Ireland to San Francisco?

    Airlines like Delta, Finnair, and KLM fly from Ireland to San Francisco in about 13h 50m. The time it takes to get you to your destination can typically vary by up to 8h 37m. Ireland and San Francisco are separated by a distance of 5081 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $377. However, be on the lookout for offers from Aer Lingus and British Airways, 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 Aer Lingus (89%), Iberia (89%) or British Airways (89%) 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 $619. On average you can expect to pay $1,417. The most popular route, (Dublin - San Francisco), can usually be booked for $561.

  • 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, October is the cheapest month in which you can book a flight from Ireland to San Francisco (average of $285). Flying from Ireland to San Francisco in July is currently the most expensive (average of $672). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Santa Clara
Fairfield
Rancho Cordova
San Bruno
Watsonville
San Ramon
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
Vallejo
San Lorenzo
Davis
Emeryville
Manteca
Elk Grove

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Ireland to San Francisco

Discover the top 2 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 May 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$482Average$712FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$777Average$979FlexibilityNo cancel feeOn-time69%

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