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$447+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$544
(Scandinavian Airlines)

One-way from

$447
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$649

Good round-trip deal

$573 or less

Good one-way deal

$614 or less
From Ireland to San Francisco
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One-way flight from Ireland to San Francisco
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Highest demand for flights based on searches. 17% potential increase in price ($148 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ireland to San Francisco.
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Price to beat on a one-way flight from Ireland to San Francisco.
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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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/314:25 amDUB - SFO
1 stop19h 40mTAP AIR PORTUGAL
Fri 11/147:10 pmSFO - DUB
1 stop31h 10mTAP AIR PORTUGAL
Deal found 9/11$552
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/79:00 amDUB - SFO
1 stop15h 00mLufthansa
Tue 10/141:02 pmSFO - DUB
1 stop13h 18mLufthansa
Deal found 9/9$558
This lastminute.com deal was found by Cheapflights users on 9/9. 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.
Mon 12/87:05 pmDUB - SFO
2 stops35h 53mScandinavian Airlines
Sat 1/104:40 pmSFO - DUB
2 stops35h 05mScandinavian Airlines
Deal found 9/9$559
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:05 pmDUB - SFO
1 stop29h 25mScandinavian Airlines
Mon 9/297:40 pmSFO - DUB
1 stop14h 35mScandinavian Airlines
Deal found 9/9$561
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/45:00 amDUB - SFO
1 stop15h 40mLufthansa
Thu 11/138:25 amSFO - DUB
1 stop17h 55mLufthansa
Deal found 9/11$565
This TravelUp deal was found by Cheapflights users on 9/9. 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 12/811:30 amDUB - SFO
1 stop15h 21mMultiple Airlines
Sat 1/105:30 pmSFO - DUB
1 stop17h 10mMultiple Airlines
Deal found 9/9$566
This TravelUp deal was found by Cheapflights users on 9/10. 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.
Fri 10/101:35 pmDUB - SFO
1 stop14h 53mLufthansa
Fri 10/171:02 pmSFO - DUB
1 stop13h 18mLufthansa
Deal found 9/10$567
This Scandinavian Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 11/37:05 pmDUB - SFO
2 stops36h 18mScandinavian Airlines
Sun 11/164:40 pmSFO - DUB
1 stop17h 40mScandinavian Airlines
Deal found 9/10$568
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/155:55 amDUB - SFO
1 stop14h 45mLufthansa
Mon 10/201:02 pmSFO - DUB
1 stop13h 18mLufthansa
Deal found 9/10$569
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Sun 12/710:45 amDUB - SFO
1 stop16h 00mAmerican Airlines
Wed 1/77:25 amSFO - DUB
2 stops18h 15mAmerican Airlines
Deal found 9/9$570
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:50 amDUB - SFO
1 stop17h 55mBritish Airways
Fri 11/145:30 pmSFO - DUB
1 stop18h 20mBritish Airways
Deal found 9/11$571
This British Airways deal was found by Cheapflights users on 9/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:50 amDUB - SFO
1 stop14h 10mBritish Airways
Sun 1/111:22 pmSFO - DUB
2 stops17h 43mBritish Airways
Deal found 9/9$572

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 September 11, 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 2/24

12:30 pm-8:21 pm

2 stops39h 51m

San Francisco

Sat 3/7

4:40 pm-6:20 pm

1 stop17h 40m

$544

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 12/5

10:45 am-6:45 pm

1 stop16h 00m

San Francisco

Tue 1/13

10:40 am-12:10 pm

2 stops17h 30m

$572

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 11/3

9:10 am-3:55 pm

1 stop14h 45m

San Francisco

Sun 11/16

8:30 am-8:10 am

1 stop15h 40m

$572

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 12/6

10:55 am-6:45 pm

1 stop15h 50m

San Francisco

Tue 1/13

5:30 pm-7:40 pm

1 stop18h 10m

$572

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 12/22

8:50 am-3:00 pm

1 stop14h 10m

San Francisco

Tue 12/30

6:00 am-9:35 am

2 stops19h 35m

$572

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 12/18

8:50 am-6:45 pm

1 stop17h 55m

San Francisco

Tue 12/30

8:40 pm-7:40 pm

1 stop15h 00m

$572

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 1/14

8:50 am-10:02 pm

2 stops21h 12m

San Francisco

Wed 1/28

10:40 am-12:15 pm

2 stops17h 35m

$576

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Tue 9/23

5:55 am-12:40 pm

1 stop14h 45m

San Francisco

Mon 10/13

7:40 pm-5:50 pm

1 stop14h 10m

$577

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 10/27

5:55 am-12:50 pm

1 stop13h 55m

San Francisco

Sun 11/9

10:30 am-3:45 pm

2 stops21h 15m

$578

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 12/18

8:50 am-10:51 pm

2 stops22h 01m

San Francisco

Sun 12/28

6:10 am-9:50 am

2 stops19h 40m

$578

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 41 results
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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

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 $357). 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 September 11, 2025.

It’s typically best to fly out from Ireland to San Francisco in the morning. Doing so could potentially save you 5% on the flight price compared to flying at noon, which is usually more expensive.

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 September 11, 2025.
Read through reviews of airlines operating flights from Ireland to San Francisco, such as United Airlines, American 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
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

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.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

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.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

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.
Aer Lingus
7.2
Good
1,271 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

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.
British Airways
6.7
Okay
7,361 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

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 11.8 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 1 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, British Airways, and Lufthansa fly from Ireland to San Francisco in about 14h 45m. The time it takes to get you to your destination can typically vary by up to 25h 06m. 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 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 (86%), Aer Lingus (86%) or British Airways (86%) 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 $531. On average you can expect to pay $1,049. The most popular route, (Dublin - San Francisco), can usually be booked for $423.

  • 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 $357). 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
Roseville
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Manteca
Santa Clara
Sunnyvale
Hollister
Vacaville
Foster City
Vallejo
Burlingame
Redwood City
Union City
San Leandro
San Mateo
Lathrop

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Alternative routes for Ireland to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ireland to San Francisco

Discover the top 4 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$512Average$611FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$531Average$701FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$544Average$851FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$593Average$853FlexibilityNo cancel feeOn-time71%

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