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$382+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SFO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$500
(Cheapflightsfares)

One-way from

$382
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$679

Good round-trip deal

$514 or less

Good one-way deal

$615 or less
Provider with most accurate pricing for Dublin-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Dublin-San Francisco flights.
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From Ireland to San Francisco
Search Deals
One-way flight from Ireland to San Francisco
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($150 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 October 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 October 30, 2025.

This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:30 pmDUB - SFO
Nonstop11h 05mAer Lingus
Sat 11/155:20 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 10/30$507
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:30 pmDUB - SFO
Nonstop11h 05mAer Lingus
Fri 11/145:20 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 10/29$508
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/712:30 pmDUB - SFO
Nonstop11h 05mAer Lingus
Sat 11/225:20 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 10/28$511
This Mytrip deal was found by Cheapflights users on 10/30. 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.
Wed 11/511:00 amDUB - SFO
Nonstop11h 05mAer Lingus
Mon 11/105:20 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 10/30$512
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Mon 11/1012:30 pmDUB - SFO
Nonstop11h 05mAer Lingus
Fri 11/145:20 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 10/28$513
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/511:00 amDUB - SFO
Nonstop11h 05mAer Lingus
Wed 11/125:20 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 10/29$516
This Aer Lingus deal was found by Cheapflights users on 10/30. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:30 pmDUB - SFO
Nonstop11h 05mAer Lingus
Wed 11/125:20 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 10/30$517
This FlightHub deal was found by Cheapflights users on 10/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/231:30 pmDUB - SFO
Nonstop11h 05mAer Lingus
Sat 11/295:20 pmSFO - DUB
Nonstop10h 05mAer Lingus
Deal found 10/30$528
This American Airlines deal was found by Cheapflights users on 10/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:30 amDUB - SFO
1 stop16h 15mAmerican Airlines
Tue 12/97:21 amSFO - DUB
2 stops18h 14mAmerican Airlines
Deal found 10/30$529
This British Airways deal was found by Cheapflights users on 10/28. 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 11/117:50 amSNN - SFO
2 stops20h 38mBritish Airways
Thu 11/2010:16 amSFO - SNN
2 stops17h 14mBritish Airways
Deal found 10/28$628
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 11/112:00 pmSNN - SFO
1 stop17h 59mAmerican Airlines
Thu 11/2010:16 amSFO - SNN
2 stops17h 14mAmerican Airlines
Deal found 10/28$637
This KLM deal was found by Cheapflights users on 10/30. 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.
Thu 11/206:00 amORK - SFO
1 stop13h 50mMultiple Airlines
Thu 12/412:25 pmSFO - ORK
2 stops18h 20mMultiple Airlines
Deal found 10/30$670

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 October 30, 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

4:55 pm-2:30 pm

1 stop29h 35m

San Francisco

Sat 3/7

4:35 pm-11:20 pm

1 stop22h 45m

$516

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sun 11/9

1:30 pm-4:35 pm

Nonstop11h 05m

San Francisco

Wed 11/12

5:20 pm-11:25 am

Nonstop10h 05m

$517

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 4/9

10:40 am-11:19 pm

2 stops20h 39m

San Francisco

Tue 4/21

7:30 pm-7:45 am

1 stop28h 15m

$532

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 11/14

12:55 pm-8:56 pm

1 stop16h 01m

San Francisco

Mon 12/8

10:16 am-12:35 pm

2 stops18h 19m

$537

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 4/10

8:15 pm-1:50 pm

1 stop25h 35m

San Francisco

Thu 4/23

1:16 pm-2:35 pm

2 stops17h 19m

$550

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 1/9

11:30 am-10:13 pm

1 stop18h 43m

San Francisco

Tue 1/20

11:13 pm-8:40 am

1 stop25h 27m

$555

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 11/10

11:30 am-7:30 pm

1 stop16h 00m

San Francisco

Sun 12/14

7:27 am-7:10 am

2 stops15h 43m

$555

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 11/10

12:55 pm-8:56 pm

1 stop16h 01m

San Francisco

Sun 11/23

10:16 am-7:10 am

1 stop12h 54m

$557

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 3/5

12:30 pm-2:35 pm

1 stop34h 05m

San Francisco

Mon 3/9

7:00 am-11:45 am

2 stops21h 45m

$562

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 1/14

12:30 pm-2:35 pm

1 stop34h 05m

San Francisco

Wed 1/28

4:02 pm-11:45 am

2 stops35h 43m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 43 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, November is the cheapest month in which you can book a flight from Ireland to San Francisco (average of $428). Flying from Ireland to San Francisco in July is currently the most expensive (average of $696). 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 October 30, 2025.

It’s typically best to fly out from Ireland to San Francisco in the evening. Doing so could potentially save you 29% on the flight price compared to flying in the afternoon, 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 October 30, 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
8,999 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

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
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

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
11,034 reviews
United Airlines
7.4
Good
8,999 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

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
1,365 reviews
United Airlines
7.4
Good
8,999 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

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
7,488 reviews
United Airlines
7.4
Good
8,999 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

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 2 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 TAP AIR PORTUGAL, Aer Lingus, and British Airways fly from Ireland to San Francisco in about 11h 05m. The time it takes to get you to your destination can typically vary by up to 18h 30m. 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 (70%), Aer Lingus (70%) or Iberia (70%) 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 $482. On average you can expect to pay $1,206. The most popular route, (Dublin - San Francisco), can usually be booked for $463.

  • 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, November is the cheapest month in which you can book a flight from Ireland to San Francisco (average of $428). Flying from Ireland to San Francisco in July is currently the most expensive (average of $696). 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
South San Francisco
Santa Cruz
Livermore
Turlock
Watsonville
Sunnyvale
Santa Clara
Antioch
Manteca
Vallejo
Hollister
Vacaville
San Bruno
Foster City
Redwood City
Union City
Fairfield
Burlingame
Lodi

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$462Average$643FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$514Average$711FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$593Average$853FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$607Average$859FlexibilityNo cancel feeOn-time69%

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