€223 Find Cheap Flights from San Francisco Bay Area to Ireland

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Useful Info

Good to know

Low seasonJanuary
Cheapest flight€239
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (11% more expensive on average)
Flight from San Francisco to Cork

FAQs for booking flights from San Francisco Bay Area to Ireland

  • How does KAYAK find such low prices on flights from San Francisco Bay Area 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 Bay Area to Ireland.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from San Francisco Bay Area 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 Bay Area 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 Bay Area to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines fly most frequently to Ireland?

    San Francisco Bay Area and Ireland are connected by different airlines. The airlines that fly that route the most regularly are Aer Lingus (9 flights per week), American Airlines (6 flights per week), and British Airways (6 flights per week).

  • How many airports are there in Ireland?

    There are 6 airports in Ireland. The busiest airport is Dublin Airport (DUB), with 87% of all flights arriving there.

  • What is the cheapest day to fly to Ireland?

    Based on KAYAK data, the cheapest day to fly to Ireland is Friday when return tickets can be as cheap as €620. On the other hand, the most expensive day to fly is Wednesday, when return prices are €1,014 on average.

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

    The cheapest time of day to fly to Ireland is generally in the evening, when retur flights cost €684 on average. Morning departures are around 26% more expensive than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the morning, which is peak travel time and where the average cost of a ticket is €864.

  • What is the cheapest flight to Ireland?

    The cheapest ticket to Ireland from San Francisco Bay Area found in the last 72 hours was to Dublin, at €369 return. The most popular route is San Francisco (SFO) to Dublin (DUB) and the cheapest return airline ticket found on this route in the last 72 hours was €369.

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

    The cheapest month for flights from San Francisco Bay Area to Ireland is October, when tickets cost €602 (return) on average. On the other hand, the most expensive months are June and March, when the average cost of round-trip tickets is €1,064 and €857 respectively.

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

    To get a below-average price on a flight from San Francisco Bay Area to Ireland, you should book around 3 weeks before departure, which saves you about 22% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

  • How many cities have direct flights to Ireland?

    From San Francisco Bay Area, there are direct flights to Ireland from one city. This city is San Francisco and there are 27 direct flights each week.

  • How many direct flights to Ireland are there each day?

    There are around 4 direct flights from within San Francisco Bay Area to Ireland every day. Most flights (81%) depart in the afternoon.

  • How many direct flights to Ireland are there each week?

    Each week there are around 27 direct flights from within San Francisco Bay Area to Ireland. The most common day for departures is Monday, with 19% of flights taking off on this day.

  • How long is the flight to Ireland?

    An average direct flight from San Francisco Bay Area to Ireland takes 20h 13m, covering a distance of 13064 km. The shortest route is San Francisco (SFO) to Dublin (DUB) with an average flight time of 10h 00m.

  • How many long-haul flights are there to Ireland each week?

    There aren’t any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Ireland. Instead, there are 27 long-haul flights (6-12 hour flight duration), with the most arriving from San Francisco.

  • What are the most popular destinations in Ireland?

    Based on KAYAK flight searches, the most popular destination is Dublin (91% of total searches to Ireland). The next most popular destinations are Cork (4%) and Shannon (4%). Searches for flights to Milltown (Kerry) (1%) and to Knock (1%) are also popular.

Reviews of the top airline flying from San Francisco Bay Area to Ireland

 
Need help choosing which airline to fly with from San Francisco Bay Area 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.
7.2
Aer LingusOverall score based on 1365 reviews
7.1Comfort
6.6Food
7.4Boarding
8.0Crew
6.9Entertainment
Airline reviews

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

4.0 OkayHarry, Oct 2025AMS - DUB
Read more Aer Lingus reviews

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

The boarding process was not good. From check-in, there was only one desk for check-in, which made for a very long line. I asked to print out my boarding pass for the next leg of my trip, also via Aer Lingus, and they said they couldn't. I was unable to do this on the app or online, either. Many fellow passengers I spoke to had the same issue. Because the plane was delayed taking off by 90 minutes, everyone had to quickly go to a desk for their next boarding pass which was chaos. Overall it wasn't a smooth or happy experience.

UNDERPRISER IS A CRIMINAL ORGANIZATION. I WILL NEVER LET THEM MANAGE ANOTHER TRIP. THEY ESSENTIALLY WERE TRYING TO EXTORT ME FOR "Permission" FROM THEM not TO USE MY ROME TO DUBLIN FLIGHT. I did not use this flight, and despite many communications with both Aer Lingus and Underpricers, to the end, they insisted I could not do this, while Aer Lingus kept telling me there was no problem. And in fact, I had zero problems catching that second leg of the trip home from Dublin to LAX.. As if harrassment, underpricers sent me a rude and insensitve email insisting Aer Lingus would not honor the flight home to LAX from DUB. ON THE MORNING OF THE TRAVEL!!! KAYAK SHOULD NOT USE UNDERPRICER "services" They are dishonest and sadistic.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

They specifically asked about my flight from bordeaux to Dublin, which was fine. A little lacking but for a 1 and a half hour flight - it was more than enough. I transferred at Dublin and went to Newark. And wow that flight was incredible.

Everything you need to know for your flight to Ireland

Cabin class types available on flights to San Francisco Bay Area

Cabin classes available on flights to San Francisco Bay Area. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class Flights to Irelandfrom €159
Business Class Flights to Irelandfrom €498
Prem Econ Class Flights to Irelandfrom €553
Economy class Flights to Irelandfrom €35

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