$271+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San Francisco to Ireland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Ireland
Cheapest flights from San Francisco to IrelandExplore 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 December 21, 2025.
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 December 21, 2025.
This SmartFares deal was found by Cheapflights users on 12/21. 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.
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
This SmartFares deal was found by Cheapflights users on 12/19. 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.
This Gotogate deal was found by Cheapflights users on 12/21. 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.
This United Airlines deal was found by Cheapflights users on 12/19. 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.
This Kissandfly.com deal was found by Cheapflights users on 12/19. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 12/21. 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.
This Delta deal was found by Cheapflights users on 12/21. 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.
This Delta deal was found by Cheapflights users on 12/21. 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.
This Air France deal was found by Cheapflights users on 12/21. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 12/21. 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.
This British Airways deal was found by Cheapflights users on 12/21. 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.
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 December 21, 2025.
Most accurate provider | OneTravel 3 stars |
|---|---|
Most trusted provider | OneTravel 3 stars |
Round-trip from | $532 (American Airlines) |
One-way from | $271 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $943 |
Good round-trip deal | $694 or less |
Good one-way deal | $415 or less |
Cheapflights Fare Finder
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
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Tue 5/5
4:35 pm-8:35 pm
1 stop20h 00m
Shannon
Thu 5/21
9:15 pm-1:50 pm
1 stop24h 35m
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Tue 2/3
10:35 am-11:30 am
2 stops16h 55m
Shannon
Tue 2/10
7:50 am-6:45 pm
1 stop18h 55m
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Sun 2/1
7:30 am-11:30 am
2 stops20h 00m
Shannon
Tue 2/10
7:50 am-6:45 pm
1 stop18h 55m
San FranciscoDublin
SFO - DUB
SFODUB
San Francisco
Wed 2/4
1:30 pm-5:10 pm
1 stop19h 40m
Dublin
Wed 2/11
9:10 am-3:55 pm
1 stop14h 45m
San FranciscoDublin
SFO - DUB
SFODUB
San Francisco
Tue 2/3
7:00 am-7:30 am
1 stop16h 30m
Dublin
Tue 2/10
9:30 am-7:55 pm
1 stop18h 25m
San FranciscoDublin
SFO - DUB
SFODUB
San Francisco
Wed 3/11
4:03 pm-11:45 am
2 stops36h 42m
Dublin
Mon 3/16
8:20 pm-3:35 pm
2 stops26h 15m
San FranciscoDublin
SFO - DUB
SFODUB
San Francisco
Mon 12/29
7:00 am-7:30 am
1 stop16h 30m
Dublin
Wed 1/14
9:30 am-6:13 pm
1 stop16h 43m
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Thu 4/30
4:35 pm-4:10 pm
1 stop15h 35m
Shannon
Thu 5/14
9:15 pm-1:50 pm
1 stop24h 35m
San FranciscoDublin
SFO - DUB
SFODUB
San Francisco
Tue 1/13
4:03 pm-11:45 am
2 stops35h 42m
Dublin
Tue 1/20
12:30 pm-10:54 pm
2 stops42h 24m
San FranciscoDublin
SFO - DUB
SFODUB
San Francisco
Mon 1/5
5:00 am-8:10 am
1 stop19h 10m
Dublin
Wed 1/21
9:00 am-10:54 am
1 stop33h 54m
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.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Ireland
What is the cheapest month to book a flight from San Francisco to Ireland?
Currently, August is the cheapest month in which you can book a flight from San Francisco to Ireland (average of $455). Flying from San Francisco to Ireland in June is currently the most expensive (average of $716). 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 December 21, 2025.
It’s typically best to fly out from San Francisco to Ireland at noon. Doing so could potentially save you 25% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from San Francisco to Ireland?
Use this chart to determine the cheapest time to fly round-trip from San Francisco to Ireland. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their San Francisco to Ireland flight should consider departing on Sunday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from San Francisco to Ireland delayed?
About 11% of weekly flights between San Francisco and Ireland have experienced delays in the past year, with the average delay time being 163 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?
Tuesday tends to have the lowest number of delays on this route, whereas Wednesday 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 11% 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 December 21, 2025.
Get a feel of what it's like to fly with Delta, Scandinavian Airlines, and United Airlines 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.
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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 December 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$421 | Average$529 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$468 | Average$814 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$471 | Average$862 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$503 | Average$876 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$506 | Average$776 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$510 | Average$862 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$517 | Average$665 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$544 | Average$929 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$568 | Average$1,261 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$571 | Average$909 | FlexibilityNo cancel fee | On-time69% |