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$492+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Jun 6 — Jun 131
Sat 6/6
Sat 6/13
1 adult, Economy
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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 7, 2026.

This Gotogate deal was found by Cheapflights users on 5/3. 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.
Sun 5/101:00 pm
DUB
-
SFO
Nonstop10h 55m
Aer Lingus
Sat 5/235:40 pm
SFO
-
DUB
Nonstop10h 05m
Aer Lingus
Deal found 5/3$626
This Gotogate deal was found by Cheapflights users on 5/4. 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.
Thu 5/1412:50 pm
DUB
-
SFO
Nonstop11h 00m
Aer Lingus
Wed 5/275:40 pm
SFO
-
DUB
Nonstop10h 05m
Aer Lingus
Deal found 5/4$627
This Scandinavian Airlines deal was found by Cheapflights users on 5/5. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:05 pm
DUB
-
SFO
1 stop27h 35m
Scandinavian Airlines
Sat 9/124:45 pm
SFO
-
DUB
2 stops33h 40m
Scandinavian Airlines
Deal found 5/5$629
This Finnair deal was found by Cheapflights users on 5/4. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:30 am
DUB
-
SFO
1 stop22h 29m
Finnair
Thu 5/288:00 am
SFO
-
DUB
1 stop17h 45m
Finnair
Deal found 5/4$630
This Scandinavian Airlines deal was found by Cheapflights users on 5/6. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:30 pm
DUB
-
SFO
1 stop34h 20m
Scandinavian Airlines
Wed 12/24:45 pm
SFO
-
DUB
1 stop35h 00m
Scandinavian Airlines
Deal found 5/6$631
This lol.travel deal was found by Cheapflights users on 5/6. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1512:40 pm
DUB
-
SFO
1 stop34h 00m
Scandinavian Airlines
Sun 8/304:45 pm
SFO
-
DUB
1 stop35h 05m
Scandinavian Airlines
Deal found 5/6$633
This Scandinavian Airlines deal was found by Cheapflights users on 5/5. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:10 am
DUB
-
SFO
2 stops35h 30m
Scandinavian Airlines
Mon 12/144:45 pm
SFO
-
DUB
2 stops34h 00m
Scandinavian Airlines
Deal found 5/5$636
This Expedia deal was found by Cheapflights users on 5/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:55 am
DUB
-
SFO
1 stop13h 50m
KLM
Mon 6/110:25 pm
SFO
-
DUB
1 stop26h 50m
KLM
Deal found 5/7$637
This lastminute.com deal was found by Cheapflights users on 5/4. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:40 pm
DUB
-
SFO
1 stop17h 20m
Multiple Airlines
Wed 5/277:30 pm
SFO
-
DUB
1 stop14h 30m
Multiple Airlines
Deal found 5/4$638
This Travelocity deal was found by Cheapflights users on 5/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:00 pm
DUB
-
SFO
Nonstop10h 55m
Aer Lingus
Wed 6/175:40 pm
SFO
-
DUB
Nonstop10h 05m
Aer Lingus
Deal found 5/3$639
This Delta deal was found by Cheapflights users on 5/7. 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 5/166:15 am
ORK
-
SFO
1 stop13h 30m
Delta
Fri 5/2911:55 am
SFO
-
ORK
2 stops18h 30m
Delta
Deal found 5/7$643
This KLM deal was found by Cheapflights users on 5/4. 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 5/155:10 pm
ORK
-
SFO
1 stop26h 35m
KLM
Thu 5/288:10 pm
SFO
-
ORK
1 stop34h 15m
KLM
Deal found 5/4$644

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 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$627
(lastminute.com)

One-way from

$492
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$803

Good round-trip deal

$641 or less

Good one-way deal

$710 or less
Provider with most accurate pricing for Dublin-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-San Francisco flights.
Search Deals
From Ireland to San Francisco
Search Deals
One-way flight from Ireland to San Francisco
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Ireland to San Francisco.
Search Deals
Price to beat on a one-way flight from Ireland to San Francisco.
Search Deals

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 7, 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

Mon 6/1

5:55 am-11:45 am

1 stop13h 50m

San Francisco

Thu 6/11

8:45 am-9:15 am

1 stop16h 30m

$645

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 5/28

5:55 am-7:47 pm

2 stops21h 52m

San Francisco

Fri 6/19

12:40 am-7:55 am

1 stop23h 15m

$652

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Sat 5/23

1:05 pm-10:49 pm

1 stop17h 44m

San Francisco

Wed 5/27

10:30 pm-11:10 am

1 stop28h 40m

$660

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 6/18

5:55 am-11:45 am

1 stop13h 50m

San Francisco

Wed 7/15

12:42 pm-3:25 pm

2 stops18h 43m

$732
Quickest round-trip

CorkSan Francisco

ORK - SFO

ORKSFO

Cork

Mon 6/22

6:15 am-11:45 am

1 stop13h 30m

San Francisco

Tue 7/7

3:05 pm-2:40 pm

1 stop15h 35m

$752

CorkSan Francisco

ORK - SFO

ORKSFO

Cork

Mon 6/22

6:15 am-11:45 am

1 stop13h 30m

San Francisco

Tue 7/7

9:20 am-2:40 pm

2 stops21h 20m

$752

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

$756

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 6/15

5:55 am-6:58 pm

2 stops21h 03m

San Francisco

Sun 8/30

1:30 pm-4:40 pm

2 stops19h 10m

$757

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 6/8

5:55 am-6:58 pm

2 stops21h 03m

San Francisco

Fri 7/31

11:59 pm-8:45 am

1 stop24h 46m

$759

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Sat 5/23

1:05 pm-10:49 pm

1 stop17h 44m

San Francisco

Wed 5/27

8:25 am-11:10 am

2 stops18h 45m

$763

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/6

Showing 1-10 of 52 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 31 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 7, 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.

How often are flights from Ireland to San Francisco delayed?

About 11% of weekly flights between Ireland and San Francisco have experienced delays in the past year, with the average delay time being 142 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 11% 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 7, 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.
United Airlines
7.4
Good
9,690 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,690 reviews
United Airlines
7.4
Good
9,690 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Aer Lingus
7.3
Good
1,547 reviews
United Airlines
7.4
Good
9,690 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

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?

    The Ireland to San Francisco flight path was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Airlines like Delta, KLM, and Air France 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 3h 54m. 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?

    The most popular route from Ireland to San Francisco is Dublin - San Francisco. You may also consider Shannon - San Francisco or Cork - 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 (91%), Iberia (91%) or British Airways (91%) 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 $628. On average you can expect to pay $1,409. The most popular route, (Dublin - San Francisco), can usually be booked for $555.

  • 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
Emeryville
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
San Lorenzo
Davis
Manteca
Union City
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 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$483Average$722FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$777Average$979FlexibilityNo cancel feeOn-time69%

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