Ireland

$351+ Cheap flights from San Francisco (SFO) to Ireland

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DUB
Jun 11 — Jun 181
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Cheap flight deals from San Francisco to Ireland

Cheapest flights from San Francisco to Ireland
Explore the most affordable flight options available from San Francisco to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.

This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:20 pm
SFO
-
SNN
1 stop12h 50m
Delta
Wed 9/161:05 pm
SNN
-
SFO
1 stop20h 19m
Delta
Deal found 5/10$753
This KLM deal was found by Cheapflights users on 5/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:30 am
SFO
-
SNN
1 stop15h 40m
Multiple Airlines
Wed 9/161:05 pm
SNN
-
SFO
2 stops17h 29m
Multiple Airlines
Deal found 5/10$758
This Delta deal was found by Cheapflights users on 5/8. 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 9/510:45 pm
SFO
-
SNN
1 stop28h 25m
Delta
Thu 9/171:05 pm
SNN
-
SFO
1 stop20h 19m
Delta
Deal found 5/8$759
This United Airlines deal was found by Cheapflights users on 5/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:21 am
SFO
-
SNN
2 stops15h 09m
United Airlines
Wed 8/199:30 am
SNN
-
SFO
1 stop14h 05m
United Airlines
Deal found 5/9$770
This United Airlines deal was found by Cheapflights users on 5/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:00 am
SFO
-
SNN
2 stops16h 30m
United Airlines
Thu 8/279:30 am
SNN
-
SFO
1 stop17h 42m
United Airlines
Deal found 5/10$775
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:05 am
SFO
-
SNN
2 stops19h 10m
United Airlines
Tue 9/159:30 am
SNN
-
SFO
2 stops19h 44m
United Airlines
Deal found 5/7$784
This United Airlines deal was found by Cheapflights users on 5/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:21 am
SFO
-
SNN
2 stops15h 09m
United Airlines
Tue 8/189:30 am
SNN
-
SFO
1 stop14h 05m
United Airlines
Deal found 5/10$787
This Delta deal was found by Cheapflights users on 5/8. 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.
Tue 9/12:20 pm
SFO
-
SNN
1 stop12h 50m
Delta
Sat 9/191:05 pm
SNN
-
SFO
1 stop16h 09m
Delta
Deal found 5/8$803
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:25 pm
SFO
-
SNN
2 stops26h 05m
United Airlines
Sun 9/1312:30 pm
SNN
-
SFO
2 stops28h 11m
United Airlines
Deal found 5/8$808
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:30 pm
SFO
-
SNN
1 stop24h 00m
United Airlines
Sat 9/199:30 am
SNN
-
SFO
1 stop14h 00m
United Airlines
Deal found 5/8$809
This Delta deal was found by Cheapflights users on 5/8. 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 9/510:45 pm
SFO
-
SNN
1 stop28h 25m
Delta
Sun 9/131:05 pm
SNN
-
SFO
1 stop16h 09m
Delta
Deal found 5/8$810
This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Sun 8/165:40 pm
SFO
-
DUB
Nonstop10h 05m
Multiple Airlines
Sun 8/309:40 pm
DUB
-
SFO
2 stops24h 25m
Multiple Airlines
Deal found 5/9$825

Find flight deals from San Francisco to Ireland

Keep the following information in mind while searching for San Francisco to Ireland flight deals. Data was last updated May 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$753
(Delta)

One-way from

$351
(Delta)

Popular in

June

Cheapest in

February

Average price

$985

Good round-trip deal

$1,098 or less

Good one-way deal

$513 or less
Provider with most accurate pricing for San Francisco-Dublin flight deals.
Provider most trusted by Cheapflights users for San Francisco-Dublin flights.
From San Francisco to Ireland
One-way flight from San Francisco to Ireland
Highest demand for flights based on searches. 21% potential increase in price ($232 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from San Francisco to Ireland.
Price to beat on a one-way flight from San Francisco to Ireland.

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Ireland 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 12, 2026.
Use the filters below to find and compare flights from San Francisco to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Sun 9/6

11:30 am-11:10 am

1 stop15h 40m

Shannon

Wed 9/16

1:05 pm-10:55 pm

1 stop17h 50m

$753

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 9/1

11:30 am-11:10 am

1 stop15h 40m

Shannon

Wed 9/16

1:05 pm-10:55 pm

1 stop17h 50m

$753

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 9/1

10:43 am-10:15 am

2 stops15h 32m

Shannon

Wed 9/16

9:30 am-9:42 pm

2 stops20h 12m

$758

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 9/1

11:30 am-11:10 am

1 stop15h 40m

Shannon

Wed 9/16

1:05 pm-10:34 pm

2 stops17h 29m

$758

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 9/1

7:05 am-10:15 am

2 stops19h 10m

Shannon

Tue 9/15

9:30 am-5:19 pm

1 stop15h 49m

$758

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 8/11

8:21 am-7:30 am

2 stops15h 09m

Shannon

Wed 8/19

9:30 am-3:35 pm

1 stop14h 05m

$770

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 8/24

6:00 am-7:30 am

1 stop17h 30m

Shannon

Thu 8/27

9:30 am-7:12 pm

1 stop17h 42m

$770

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 9/23

10:16 am-10:15 am

2 stops15h 59m

Shannon

Tue 10/6

12:30 pm-9:22 pm

1 stop16h 52m

$775

San FranciscoDublin

SFO - DUB

SFODUB

San Francisco

Sat 9/5

3:20 pm-8:45 am

1 stop33h 25m

Dublin

Mon 9/14

8:55 am-11:45 am

1 stop34h 50m

$880

San FranciscoDublin

SFO - DUB

SFODUB

San Francisco

Mon 9/7

5:00 am-7:20 am

2 stops18h 20m

Dublin

Fri 9/18

9:20 am-9:12 pm

2 stops19h 52m

$881

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from San Francisco to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from San Francisco 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 San Francisco to Ireland

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

To ensure you get the cheapest price possible for a flight from San Francisco to Ireland, you should look to book at least 76 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 San Francisco to Ireland?

Currently, November is the cheapest month in which you can book a flight from San Francisco to Ireland (average of $354). Flying from San Francisco to Ireland in July is currently the most expensive (average of $1,830). 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 SFO to IE?

Find hourly flight availability from San Francisco to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 12, 2026.

When flying from San Francisco to Ireland, 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 San Francisco to Ireland delayed?

About 9% of weekly flights between San Francisco and Ireland have experienced delays in the past year, with the average delay time being 178 minutes.

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

Historically, flights departing in the evening 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?

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

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

Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 9% of flights being delayed.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated May 12, 2026.
Get a feel of what it's like to fly with Scandinavian Airlines,United Airlines, andAer Lingus from San Francisco to Ireland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.3

Crew

8.0

Entertainment

6.7

Overall

7.4

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Comfort

7.3

Crew

8.0

Entertainment

6.7

Overall

7.4

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Comfort

7.3

Crew

8.0

Entertainment

6.7

Overall

7.4

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Comfort

7.3

Crew

8.0

Entertainment

6.7

Overall

7.4

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Comfort

7.3

Crew

8.0

Entertainment

6.7

Overall

7.4

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Comfort

7.3

Crew

8.0

Entertainment

6.7

Overall

7.4

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Ireland. 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 from for flights from San Francisco to Ireland?

    If you book a flight to Ireland from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.0 mi from the center of San Francisco.

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

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

    Airlines like Delta, United Airlines, and Scandinavian Airlines fly from San Francisco to Ireland in about 15h 32m. The time it takes to get you to your destination can typically vary by up to 5h 48m. The distance from San Francisco to Ireland is about 5032 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $239. Users have also found prices from $315 and $350 on Iberia and JetBlue, respectively.

  • What are the most popular routes from San Francisco to Ireland?

  • What are the most reliable airlines from San Francisco to Ireland?

    Before booking your flight to Ireland from San Francisco, check out the most reliable airlines to get you to your destination on time: American Airlines (89%), Aer Lingus (89%), Iberia( 89%).

  • What are the cheapest flights from San Francisco to Ireland?

    Looking for the cheapest flight from San Francisco to Ireland? While on average our users pay $2,959, our data indicates the cheapest price to be $405. The most popular route (San Francisco - Dublin), is priced around $632.

  • Can I find deals for flights from San Francisco to Ireland that include hotel bookings?

    Yes. In addition to deals on San Francisco to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Ireland.

  • Can I find deals for business class flights from San Francisco to Ireland?

    Yes. Cheapflights offers flight deals from San Francisco to Ireland 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 San Francisco to Ireland?

    Currently, November is the cheapest month in which you can book a flight from San Francisco to Ireland (average of $354). Flying from San Francisco to Ireland in July is currently the most expensive (average of $1,830). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from San Francisco to Ireland

Discover the top 10 airlines that operate flights from San Francisco to Ireland. 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 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$421Average$516FlexibilityNo cancel feeOn-time77%
IberiaCheapest$491Average$752FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$491Average$921FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$499Average$803FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$508Average$807FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$523Average$758FlexibilityNo cancel feeOn-time77%
SWISSCheapest$539Average$1,002FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$568Average$975FlexibilityNo cancel feeOn-time76%
DeltaCheapest$579Average$978FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$588Average$948FlexibilityNo cancel feeOn-time69%

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