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Cheap Flights from San Francisco to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Dublin
Dublin1 stop$635
Shannon
Shannon1 stop$738
Cork
Cork1 stop$803
Knock
Knock1 stop$1,486
Donegal
Donegal2 stops$1,040
Dublin
Dublin1 stop$635
Shannon
Shannon1 stop$738
Cork
Cork1 stop$803
Knock
Knock1 stop$1,486
Donegal
Donegal2 stops$1,040
Booking Insights

Price, demand and travel trends for San Francisco to Ireland flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from San Francisco to Ireland cheaper or more expensive than last year?

Fares from San Francisco to Ireland are running about 17% higher than they were around this time last year, averaging $915 round-trip.

What are the cheapest fares from San Francisco to Ireland right now?

Here are the cheapest round-trip fares from San Francisco to Ireland on KAYAK in the last week:

• Dublin (DUB) from $635
• Shannon (SNN) from $738
• Cork (ORK) from $803
• Donegal (CFN) from $1,040

What’s the cheapest month to fly from San Francisco to Ireland?

February is the cheapest time of year to fly, with average fares of $649. Prices are highest in June, when average flight costs increase to around $1,299.

When is the best time to book flights from San Francisco to Ireland?

Book your flights 12 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 26% compared to booking last-minute (within 2 weeks of departure).

Which airport in Ireland is the cheapest to fly to from San Francisco?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Ireland are:

• Cork (ORK) (avg. price $922)
• Dublin (DUB) (avg. price $927)
• Shannon (SNN) (avg. price $1,034)

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

Wednesday tends to be the cheapest day to fly from San Francisco to Ireland, while Thursday is the most expensive. Fares run about 16% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from San Francisco to Ireland?

Data from the past 12 months shows it's cheapest to fly to Ireland during the afternoon with average prices of $842. The morning is the most expensive time to fly, with average prices of $1,082.

Key details for San Francisco to Ireland flights

Low season

January

Cheapest flight

$405
Beat the crowds with an average 40% drop in travelers.
The most popular month to fly with an average 45% increase in travelers.
One-way flight from San Francisco to Dublin

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-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-Dec 2025
Check gate; it’s not in the international terminal

Your San Francisco to Ireland flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from San Francisco to Ireland?

    Yes. Fares from San Francisco to Ireland are low right now. As a rule of thumb, a round-trip under $760 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from San Francisco to Ireland?

    Over the past 12 months, round-trip fares from San Francisco to Ireland have ranged from $760 to $1,212.

  • What are the main airports serving Ireland?

    Ireland has 8 airports. The three busiest are Dublin (DUB) (96% of arrivals), Shannon (SNN) (3%) and Cork (ORK) (1%).

  • What airlines fly nonstop from San Francisco to Ireland?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from San Francisco to Ireland: Aer Lingus.

  • Where in Ireland can I fly nonstop from San Francisco?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from San Francisco to Dublin.

  • Is it cheaper to fly with a layover from San Francisco to Ireland?

    Yes, nonstop flights from San Francisco to Ireland average $915 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Frankfurt am Main (FRA) (avg. price $589)
    • Kastrup Copenhagen (CPH) (avg. price $608)
    • Lisbon Humberto Delgado (LIS) (avg. price $658)

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

    Flights from San Francisco to Ireland take 10h 10m on average.

  • How often are flights from San Francisco to Ireland delayed and what's the average delay?

    11% of flights on this route are delayed by at least 15 minutes. The average delay is 2h 09m.

  • Which cabin classes are available on flights from San Francisco to Ireland?

    On flights from San Francisco to Ireland you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Ireland?

    KAYAK travelers' favorite landmarks in Ireland include:

    • St. Stephen's Green
    • St. Patrick's Cathedral
    • Aviva Stadium
    • Merrion Square

  • What are the earliest and latest flights from San Francisco to Ireland?

    The earliest nonstop flight from San Francisco to Ireland departs at 5:20 pm and the latest departs at 5:20 pm. Nonstop flights take about 10h 10m.

  • 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.

Your guide to booking San Francisco to Ireland flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 12 weeks before your trip. KAYAK data shows fares in this window are around 26% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Wednesday is usually the cheapest. Flights on Thursday cost about 16% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Cork (ORK) is the cheapest airport to fly into from San Francisco. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Dublin, which is the most popular destination in Ireland. From there, it's easy to continue on to other popular destinations such as Galway, Cork and Killarney.
  • If you want the shortest trip, choose the San Francisco to Ireland nonstop route. If you'd rather save money, the route via Frankfurt am Main (FRA) is usually the cheapest.
  • 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.
7.5
Scandinavian AirlinesOverall score based on 2023 reviews
8.1Crew
7.7Boarding
6.8Food
6.8Entertainment
7.4Comfort
Airline reviews

The crew was very helpful and friendly. Food was good. The only issue was the legroom -- not great. The seat in front is also too close to see the entertainment screen properly.

8.0 ExcellentAnonymous, Aug 2026
Read more Scandinavian Airlines reviews

The crew was very helpful and friendly. Food was good. The only issue was the legroom -- not great. The seat in front is also too close to see the entertainment screen properly.

The first flight was delayed. We missed the second flight, which was rebooked 9 hours later. We missed all our arrangements for the first day of vacation.

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

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

I was surprised how good an American airline can be - I was really impressed.

Over all experience was good. However the connection time was too short at CPG. We missed our connecting flight to AMS as the passport control line was too long and by the time we got our passport control done it was too late I wish there were some SAS staff to help us out at the passport control center Though they put us in a KLM flight from CPG to AMS, That flight was also delayed by over two hours

Great logistics and timeliness as we arrived quite early. Flight smooth and fast. Excellent entertainment. Plane itself was a bit tired and the crew mostly indifferent. Baggage took forever but that’s on CPH. Would use SAS again for sure.

Business class seats narrower and the most uncomfortable Business class I've ever experienced. Clothes on the seats was itchy, head of the bed was elevated causing us to slude down even though they were "lie flat seats". Plane was way too hot. My partner and I were both sweating just sitting in our seats. Staff appeared sad or depressed

Awful customer service. What you are told 100% depends on who you talk to.

Food was mediocre, but as expected in economy class on an airline. Wrap was ice cold , my son’s served by a steward on the next aisle was warm . As expected, but at least heat the food up a bit. No frills, but it’s economy. Excellent free WiFi was a bonus

The check in and boarding process was smooth, and the flight was fine.

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

This was the smoothest flight I've ever taken with any airline, including Aer Lingus. Typically, there are moments when I feel afraid, but from take off (miraculously seamless!) to cruise, to landing this was a perfect flight. Thank you!

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The first leg of my 2 flights were delayed, causing me to miss my second flight and have to stay the whole night in Dublin. Super upset with this experience, and I still need to figure out how to get compensated for this.

New Max 10, first class seats have been shrunk. End of a 20 hour journey, it was United not Lufthansa, just glad to get home

One of my checked luggage was damaged. Cracked on the top by the handle.

Not so good. Crew was not as attentive as they should have been especially if flying business class. Only offered dinner 2 hours after takeoff. My flight attendant seemed overwhelmed. Pushed my help button but no one came. I explained everything on my previous review.

I have been flying united for a long time but now I’m done

Delayed - leaving, delayed getting to the gate at destination. What should have been a very easy flight and experience was not.

Better management of the boarding process. Is there any way you could forward all the window seats first? That's the Way Reno Air used to do it, and they had the fastest boarding in the industry!

overall a very good travel experience - left on time, arrived early. Mostly a smooth flight. Polaris seats were excellent, very good service and nice food with options.

Flight was over two hours late, but they notified us early in the morning. They ended up changing planes the food on board that was extremely mediocre and we were in premier class.

Food was very bad Crew was not so welcoming. Chairs was so uncomfortable

The business class had to wait to board last. Unacceptable

The worst seat in any business class. Food are worst then economy class.

No food on 4.5 hour flight, wi-fi did not work. Terrible experience for a long haul flight.

Multiple delays and made us miss the connecting flight and lost our bags

Little communication with passengers after sitting over 1 hour for a maintenance issue Then we had to deplane- no crew communication Poor gate information after deplaned WiFi would not connect AT ALL

Flight attendant made the flight very enjoyable. He was courteous and gave great care to the passengers

Not good. Flight crew, was not friendly and just shoved stuff at us. Not the way I like to travel.

Aside from the little delay, overall was flight good. Made it safely. Thanks!

Over the course of 7 months of travel, I can count on my hand the number of times the flight has departed on time. Majority of the instances have been related to non-weather reasons. Would not recommend flying this Airline

The food was okay and the space in business class was smaller than we had to Singapore.

The plane was spartan, the seats not that comfortable. It was like flying a super low budget airline. They charged for coffee!!! I have never, ever experienced that before.

We were bumped out of bulkhead seats we purchased a year ago. We were moved to row 5 and the folks in row 4 fully reclined making it difficult to get out to use the restroom. The seat have too little padding making them uncomfortable 3 hours into the flight. The movies did not offer closed captioning and the earbuds were poor so the entertainment was mostly unusable. The food was just passable. I would not fly Iberia/level again. Iberia also bumped us off our direct return flight so I would say the whole experience with this airline is poor.

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.

The crew were friendly and helpful. Iberia lost our luggage on arrival, Friday and we didn't get it until Sunday at 10:00 p.m. local Malaga time. I also paid $382.80 for seat assignments but two out out of the four were not together. Iberia mentioned that it was because the plane was delayed in Madrid before our flight began in LAX. They should compensate us half of my payment.

BEWARE!!! Iberia changes your seats at random. I paid for a window seat and they changed it to one in the middle aisle resting against the bathroom- can’t lean back + hear every flush. This on a 11 hour flight.. There were families that were broken up with separate seats all over the plane. Lots of upset passengers showing their seat confirmation to the besieged and helpless airline steward. Also, the gluten free meal was tasteless.

Flight delayed Service could be better Iberia staff are not really friendly

They cancelled the flight)(they said bad weather but many other flights took off) and made us wait 5 hours in line to figure out what to do. We ended up making a new flight the next day on another airlines...I hope they honor giving us our money back

very good all round. staff, food, entertainment, punctuality all very good

Always an excellent experience. Staff are professional without being overly fussy.

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

More options for your flight from San Francisco to Ireland

Complete your trip to Ireland with a hotel stay or car rental