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$372+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Aug 4 — Aug 111
Tue 8/4
Tue 8/11
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 July 5, 2026.

This SmartFares deal was found by Cheapflights users on 7/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:05 pm
DUB
-
SFO
1 stop27h 45m
Scandinavian Airlines
Fri 12/44:45 pm
SFO
-
DUB
1 stop32h 40m
Scandinavian Airlines
Deal found 7/3$537
This flugladen.de deal was found by Cheapflights users on 7/2. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:30 pm
DUB
-
SFO
1 stop34h 20m
Scandinavian Airlines
Fri 11/64:45 pm
SFO
-
DUB
1 stop32h 40m
Scandinavian Airlines
Deal found 7/2$544
This Expedia deal was found by Cheapflights users on 7/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:05 pm
DUB
-
SFO
1 stop27h 45m
Scandinavian Airlines
Fri 12/44:45 pm
SFO
-
DUB
1 stop17h 35m
Scandinavian Airlines
Deal found 7/4$548
This Scandinavian Airlines deal was found by Cheapflights users on 6/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:05 pm
DUB
-
SFO
1 stop27h 45m
Scandinavian Airlines
Wed 12/24:45 pm
SFO
-
DUB
1 stop17h 35m
Scandinavian Airlines
Deal found 6/30$549
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:40 pm
DUB
-
SFO
1 stop34h 00m
Scandinavian Airlines
Wed 9/94:45 pm
SFO
-
DUB
1 stop35h 05m
Scandinavian Airlines
Deal found 7/3$553
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Thu 8/277:05 pm
DUB
-
SFO
1 stop27h 35m
Scandinavian Airlines
Tue 9/14:45 pm
SFO
-
DUB
1 stop17h 35m
Scandinavian Airlines
Deal found 6/30$556
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 8/257:05 pm
DUB
-
SFO
1 stop27h 35m
Scandinavian Airlines
Mon 9/74:45 pm
SFO
-
DUB
1 stop17h 35m
Scandinavian Airlines
Deal found 6/30$557
This SmartFares deal was found by Cheapflights users on 6/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:05 pm
DUB
-
SFO
1 stop27h 35m
Scandinavian Airlines
Tue 9/84:45 pm
SFO
-
DUB
1 stop17h 35m
Scandinavian Airlines
Deal found 6/30$559
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 8/257:05 pm
DUB
-
SFO
1 stop27h 35m
Scandinavian Airlines
Tue 9/14:45 pm
SFO
-
DUB
1 stop17h 35m
Scandinavian Airlines
Deal found 6/30$561
This SmartFares deal was found by Cheapflights users on 7/4. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:30 pm
ORK
-
SFO
2 stops27h 25m
Aer Lingus
Sun 9/64:35 pm
SFO
-
ORK
1 stop19h 15m
Aer Lingus
Deal found 7/4$802
This SmartFares deal was found by Cheapflights users on 7/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:30 pm
ORK
-
SFO
2 stops27h 25m
Aer Lingus
Mon 9/74:35 pm
SFO
-
ORK
1 stop14h 35m
Aer Lingus
Deal found 7/2$804
This SmartFares deal was found by Cheapflights users on 7/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:30 pm
ORK
-
SFO
2 stops27h 20m
Aer Lingus
Fri 9/1111:58 pm
SFO
-
ORK
2 stops26h 47m
Aer Lingus
Deal found 7/3$814

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 July 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$537
(SmartFares)

One-way from

$372
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$982

Good round-trip deal

$708 or less

Good one-way deal

$681 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. 18% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 5, 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 10/5

12:40 pm-2:40 pm

1 stop34h 00m

San Francisco

Mon 10/12

4:45 pm-6:20 pm

1 stop17h 35m

$583

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 9/16

11:00 am-2:40 pm

2 stops35h 40m

San Francisco

Wed 9/30

4:45 pm-7:05 pm

2 stops18h 20m

$599

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 9/4

11:10 am-2:40 pm

2 stops35h 30m

San Francisco

Sat 9/19

4:45 pm-11:50 am

1 stop35h 05m

$644

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 8/28

7:05 pm-2:40 pm

1 stop27h 35m

San Francisco

Thu 9/10

7:00 am-6:20 pm

2 stops27h 20m

$645

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 8/27

11:10 am-2:40 pm

2 stops35h 30m

San Francisco

Thu 9/10

7:00 am-11:50 am

2 stops20h 50m

$647

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sun 11/1

6:55 pm-2:50 pm

2 stops27h 55m

San Francisco

Thu 11/12

4:45 pm-9:20 am

2 stops32h 35m

$660

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 8/27

10:30 am-5:40 pm

1 stop15h 10m

San Francisco

Thu 9/10

7:30 pm-7:40 am

1 stop28h 10m

$695

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 8/27

8:20 pm-1:50 pm

1 stop25h 30m

San Francisco

Wed 9/9

7:30 pm-7:30 pm

1 stop16h 00m

$697

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 8/17

7:05 pm-2:40 pm

1 stop27h 35m

San Francisco

Mon 9/21

4:45 pm-10:10 am

2 stops33h 25m

$707
Quickest round-trip

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 9/4

12:50 pm-3:50 pm

Nonstop11h 00m

San Francisco

Fri 9/18

5:35 pm-11:45 am

Nonstop10h 10m

$709

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 49 resultsSorted by cheapest first
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5

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

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 $673). 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 July 5, 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 July 5, 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 11% of weekly flights between Ireland and San Francisco have experienced delays in the past year, with the average delay time being 139 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 Saturday 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.

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.

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 July 5, 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
9,930 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.7

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
9,930 reviews
United Airlines
7.4
Good
9,930 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.7

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
1,642 reviews
United Airlines
7.4
Good
9,930 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.7

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 Scandinavian Airlines, Aer Lingus, and KLM fly from Ireland to San Francisco in about 27h 25m. The time it takes to get you to your destination can typically vary by up to 6h 35m. Ireland and San Francisco are separated by a distance of 5084 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 $374. However, be on the lookout for offers from WestJet and Aer Lingus, 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 American Airlines (75%), Aer Lingus (75%) or Iberia (75%) 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 $632. On average you can expect to pay $2,324. The most popular route, (Dublin - San Francisco), can usually be booked for $537.

  • 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 $673). 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 Clara
Santa Cruz
Fairfield
Burlingame
Redwood City
Rancho Cordova
Roseville
Cupertino
Emeryville
Newark
San Bruno
Watsonville
Hayward
San Ramon
San Carlos
Daly City
Turlock
Vallejo
San Lorenzo

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 July 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$483Average$734FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$839Average$1,024FlexibilityNo cancel feeOn-time69%

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