$357 Find Cheap Flights from San Francisco to Ireland - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Ireland departing on 8/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from San Francisco to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop$951
Shannon
Shannon1 stop$770
Cork
Cork1 stop$858
Knock
Knock2 stops$1,278
Dublin
Dublin1 stop$951
Shannon
Shannon1 stop$770
Cork
Cork1 stop$858
Knock
Knock2 stops$1,278

Book Cheap San Francisco to Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Ireland

Tue, Oct 6 - Tue, Oct 20
United Airlines Logo
1:05 pm - 10:15 am
SFO
-
SNN
13h 10m
1 stop
United Airlines Logo
12:30 pm - 7:14 pm
SNN
-
SFO
14h 44m
1 stop
$770United Airlines
Tue, Oct 6 - Tue, Oct 20
United Airlines Logo
10:17 am - 10:15 am
SFO
-
SNN
15h 58m
2 stops
United Airlines Logo
12:30 pm - 9:22 pm
SNN
-
SFO
16h 52m
1 stop
$775United Airlines
Mon, Aug 3 - Wed, Aug 19
United Airlines Logo
6:05 am - 7:30 am
SFO
-
SNN
17h 25m
1 stop
United Airlines Logo
9:30 am - 7:38 pm
SNN
-
SFO
18h 08m
2 stops
$795United Airlines
Wed, Aug 5 - Thu, Aug 20
Aer Lingus Logo
7:30 pm - 5:15 pm
SFO
-
DUB
13h 45m
1 stop
Aer Lingus Logo
12:50 pm - 3:50 pm
DUB
-
SFO
11h 00mnonstop
$951Aer Lingus
Thu, Oct 1 - Sun, Oct 18
Scandinavian Airlines Logo
4:45 pm - 7:05 pm
SFO
-
DUB
18h 20m
2 stops
Scandinavian Airlines Logo
7:15 pm - 2:40 pm
DUB
-
SFO
27h 25m
2 stops
$953Scandinavian Airlines
Sat, Aug 29 - Sun, Sep 6
JetBlue Logo
11:26 am - 8:20 am
SFO
-
DUB
12h 54m
1 stop
JetBlue Logo
11:30 am - 7:10 pm
DUB
-
SFO
15h 40m
1 stop
$956JetBlue
Sat, Nov 21 - Sat, Nov 28
Scandinavian Airlines Logo
4:45 pm - 11:45 am
SFO
-
DUB
35h 00m
1 stop
Scandinavian Airlines Logo
7:05 pm - 2:50 pm
DUB
-
SFO
27h 45m
1 stop
$957Scandinavian Airlines
Wed, Sep 23 - Tue, Sep 29
JetBlue Logo
10:15 am - 8:20 am
SFO
-
DUB
14h 05m
1 stop
JetBlue Logo
11:30 am - 11:31 pm
DUB
-
SFO
20h 01m
1 stop
$958JetBlue
Mon, Sep 7 - Fri, Sep 11
British Airways Logo
7:30 pm - 12:35 pm
SFO
-
NOC
33h 05m
1 stop
British Airways Logo
1:05 pm - 10:45 pm
NOC
-
SFO
17h 40m
2 stops
$1,638British Airways
Mon, Sep 7 - Fri, Sep 11
British Airways Logo
6:20 am - 12:35 pm
SFO
-
NOC
22h 15m
2 stops
British Airways Logo
1:05 pm - 10:45 pm
NOC
-
SFO
17h 40m
2 stops
$1,642British Airways
Booking Insights

KAYAK's insights & trends for San Francisco to Ireland flights

Get data-powered insights and trends into flights from San Francisco to Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Francisco to Ireland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from San Francisco found in the last 5 days was to Dublin, at $895 round-trip. The most popular route is from San Francisco (SFO) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 5 days was $895.

What is the cheapest time of day to fly to Ireland?

The average price for all round-trip flights from San Francisco to Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ireland is generally at night, when round-trip flights cost $687 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is $872.

Can I save money by flying with a layover from San Francisco to Ireland?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $1,172 on average.

What is the cheapest month to fly from San Francisco to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Ireland is July, when tickets cost $331 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $660 and $523 respectively.

What’s the cheapest day of the week to fly from San Francisco to Ireland?

The average price of all round-trip flights from San Francisco to Ireland clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Ireland on a Tuesday and more expensive on a Thursday. On your return trip to San Francisco, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Ireland, you should book around 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$357
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from San Francisco to Cork

Flights from San Francisco to Ireland: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from San Francisco to Ireland 
Verified travelerFlew with Aer Lingus
SFO
-
DUB
Jan 2026
If flying to Ireland, the direct flight from SFO to DUB on Aer Lingus is the way to go to avoid the hassles and uncertainty of mid journey stop-overs.
DavidFlew with Aer Lingus
SFO
-
DUB
Dec 2025
Check gate; it’s not in the international terminal

FAQs - booking Ireland flights

  • What is the best means of transport to the city center from DUB airport?

    From Dublin Airport, you may take a taxi to O'Connell Street and other downtown areas, as well as the Connolly and Heuston railway stations and Bus ras, the country's primary bus terminal, to go to other parts of Ireland.

  • Are there rental car services at DUB airport?

    Yes. The rental car companies include Alamo, Avis, and Budget. Simply make your way to the Arrivals Hall of either Terminal 1 or 2 at Dublin Airport if you need to visit the Rental Car Center. You may discover a number of different desks for organizations that have branches at the airport scattered throughout the area where baggage claim is located.

  • Are there hotels near SFO airport?

    Luxury rooms with floor-to-ceiling windows revealing scenic airport and bay vistas await you. Next to San Francisco International Airport lies the luxurious Grand Hyatt at SFO. The hotel's position near the airport's main entrance makes it easy to access by car or the SFO AirTrain from any terminal.

  • Are there parking spots at SFO airport?

    There are five lots that are utilized for on-site parking at San Francisco International Airport, and they are the Domestic Garage, International Garage A, International Garage G, Long Term Garage, and Long Term Surface. Valet parking is also available at the airport.

  • How does KAYAK find such low prices on flights from San Francisco to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco to Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Francisco to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Francisco to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Ireland

  • If you are flying to Ireland, you can access two major airports. They include the Dublin Airport and Shannon Airport. Dublin Airport serves as the major airport connecting domestic and international flights while Shannon airport acts as secondary airport serving the same duties as that of the main airport.
  • If you have just arrived at San Francisco International Airport and want to relax, you are welcome to use the airport's lounges. The American Express Centurion Lounge is a luxurious airport lounge that provides some of the world's best food and wine to passengers departing from or transiting through San Francisco International Airport. You will have a great day with everything from the free Wi-Fi to the delicious local fare to the wine tasting.
  • There are 19 lactation facilities available to moms traveling through SFO, including 13 spacious, luxurious, and discrete nursing rooms. Breastfeeding and pumping women may use these private rooms at the airport. There are breastfeeding rooms available at Terminals 1, 2, and 3 for use before and after travelers clear security.
  • At San Francisco International Airport, there are one or two authorized spaces for animal relief in each terminal. Once a traveler has passed through security at either Terminal 1 or Terminal 3, they may use the terminal's amenities. Outdoor pre-security checks may be found at the terminal curbside on the Arrivals Level; just follow the painted paw-prints. The airport's perimeter is where these checkpoints are set up.
  • Both the SFO and the Ireland airports (DUB and SNN) have extensive facilities to assist passengers with disabilities. When you arrive, depart, or have already arrived at the airport, you may get help renting a wheelchair and getting about the terminal. Whenever you find you need it, feel free to take advantage of this help. Make sure the airline knows ahead of time if you want to take advantage of their optional extras.

Reviews of the top 5 airlines serving from San Francisco to Ireland

 
Need help choosing which airline to fly with from San Francisco to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Scandinavian AirlinesOverall score based on 1840 reviews
7.3Comfort
6.7Food
8.0Crew
7.7Boarding
6.7Entertainment
Airline reviews

Old plane, food not that great - lacked taste. Crew was nice but strict.

4.0 OkayAnonymous, Jun 2026
JFK - CPH
Read more Scandinavian Airlines reviews

Old plane, food not that great - lacked taste. Crew was nice but strict.

Terrible airlines, kept lying to me about the fact that my connection flight was cancelled. Left me hanging until last min. NEVER AGAIN

Mediocre. Maybe due to Economy light. Staff was great. Space shrunk, not for me, and definitely not for Vikings. Food was decent. Assistance lagging. There was a possibility to upgrade to Premium economy, however my bid was immediately classified as low and not even considered (though well over minimum bid). Thus I was no bleeding dry.

Upon departing and landing, the man seating in front of me had his seat leaning back. Taking off nobody told him anything. Landing someone from the crew said something but the passenger ignored him and nobody followed up. Felt a bit unsecured. If this that is some of the basics are missed, what else was overlooked?

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

Every flight got canceled or delayed. Customer service was awful.

They lost my luggage and can’t find it. My trip is ruined. Online tracking of lost luggage doesn’t work

No free Wi-Fi. I have SkyMiles but not a high status, having an account has been enough for Wi-Fi on other flights, but this one was going to charge me to use it. Also turbulence was really bad toward the end, but I didn't count this in my ratings since I know Delta cannot control the weather - it's 2026 and lack of WiFi alone is enough for a poor rating.

The connection time from the flight to Stockholm and the flight out of Stockholm was too short. Due to a knee injury, I almost missed the second flight. From deplaning at E5 to boarding at F69 takes more than 40 minutes.

The stewardess was incredibly rude. The gave you only one drink with dinner.

It was perfect! United Airlines staff was extremely caring, super friendly and professional

United has maintenance issues and can then never recover. No operations ability and simple issues always turn into multiple hours long cascading delays. Worst airline on earth.

I paid for a confirmed upgraded aisle seat and was moved to a center seat in the back of the plane at the last minute.

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Easy of boarding, helpfully staff at check in, surprisingly comfortable seating

Lost of requested seat assignments. Lost my husband's meal choice

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

My flight time was changed without any notification to me which ruined my time sensitive plans so I ended up completely changing my travel plans and no reimbursement.

No screens or meal options. Freezing cold. Dirty seats. Left late.

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

Flight delayed 45 minutes almost caused us to miss connection to transatlantic flight.

Vegetarian food options were pretty tasteless. Gob of rice with absolutely no protein, barely any vegetables, and poorly seasoned. Food was the major disappointment of an otherwise good flight experience. However, food is a differentiator on long haul flights.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Overall good experience. But seats were small and uncomfortable for the price. Good entertainment, staff friendly and attentive.

Flight was delayed no information given really . No food whatsoever on the plane . I think you should be able to put that on the app so people have a chance to buy food bring it with them . They said plane was very busy on way over but there should be enough for both flights as we pay full price for the service. No information or very slow on the app about the delays . Staff were lovely it’s not their fault so company not fare to passengers or staff .

Smooth quiet flight take off and landing both excellent. Food was mediocre. Boarding at gate was disorganized and unacceptable.

My only complaint is that during my 8-hour-long flight, the flight attendants came around with the coffee and tea cart twice instead of the alcoholic beverage cart. I would rather sleep on a plane than rush to the bathroom to take a dump. I asked the flight attendant if I could have a beer instead of coffee or tea. Unfortunately, she said the bar is closed. That tells me that she was too lazy to get me a beer on the plane. I was not happy about that.

Caring & friendly crew. Most important: got us SAFELY to our destination!

Friendly flight attendants, decent food if you can eat dairy.

Agency very bad had to cancelled my booking too many changes in the flight changed my flight to 1 week

Luggage did not make it onto my plane. Business seats were economy with empty row seat. Just horrible experience. Why would the company allow for transfers that don’t give employees enough time to transfer luggages??

The gate experience at LAX was abysmal (same for the arrival experience two days prior). Despite the LAX -> SAT schedule of two flights daily, our departure gate was at a smaller hub that we had to be bussed to from Terminal 4. Fortunately, I arrived at LAX extra early and had time to spare, but if I had not known, I might have missed my flight. I looked at the LAX airport map in the AA app and there was no indication of the additional boarding process. Lastly the gate area we were bussed to was crowded with limited food and beverage options. On flight, the fight attendant was hospitable and attentive, the flight was smooth, and AA's free (and working) wifi for AA members were all on the positive side.

Our flight from JFK to Madrid was delayed. We had to go from one side of the Madrid airport (Terminal 4s to the far end of terminal 4 - Gate K98) to our gate in less than 30 minutes. Put passport control and security/baggage check and that’s very hard unless you’re Usain Bolt. I called Iberia Airlines and the telephone customer service told me that I was going to have to pay to re-book. Luckily the help desk in the airport (who was dealing with dozens of people from the same JFK-Madrid flight) did not charge us extra to reschedule to a flight 8 hours later. They also gave us a voucher for breakfast and lunch. Glad the actual person at the airport had some actual sense.

For an long range economy flight I feel more space and more meal options need to be offered for flights over 5 hours

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

The flight from LA to Chicago was smooth and service was very good overall.

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

It's a long flight and that is always difficult. I was comfortable and well. The movies available were great and the crew was good.

Not bad but they lost 2 of my bags when I got to Florence

Couldn’t get boarding passes online, delayed an hour, and smallest amount of space on board I’ve ever encountered for such a long flight.

In general, I've had excellent experiences with Iberia flights and will continue to use them. In this last flight there were two things that didn't go right. I didn't get the kosher meal I had pre-requested when I had checked in on-line. Things worked out OK as we ended up eating the fish and vegetarian choices, which were really good. The other issue was that some movies for me and my wife started fine but after 8-12 minutes the content just switched to something else. The flight attendant reset our entertainment systems, but the problem persisted. We ended up choosing other movies/TV shows that did work fine.

Awful. They didn't even show concern that her connecting flight( Dallas to Mardrid) was gone/missing. I don't understand how that is even possible. Rudest answer from one of the crew was that American Airlines sold the tickets to somebody else. My daughter was not in the list.

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

Everything you need to know for your flight from San Francisco to Ireland

Information on your arrival and departure airports