€312 Find Cheap Flights from San Francisco Bay Area to Ireland – Compare and Save

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Useful Info

Good to know

Low season

January

Cheapest flight

€312
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly (10% more expensive on average)
Flight from San Francisco to Shannon

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

Insights shared by verified travellers who flew the route from San Francisco Bay Area 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

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?

    American Airlines connects San Francisco Bay Area to Ireland with 7 flights per week and both British Airways and Aer Lingus also offer 7 flights per week.

  • How many airports are there in Ireland?

    There are 6 airports in Ireland. The busiest airport is Dublin Airport (DUB), with 86% 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 Saturday when return tickets can be as cheap as €757. On the other hand, the most expensive day to fly is Tuesday, when return prices are €1,262 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 €928 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 €928.

  • What is the cheapest flight to Ireland?

    The cheapest ticket to Ireland from San Francisco Bay Area found in the last 5 days was to Dublin, at €783 return. The most popular route is San Francisco (SFO) to Dublin (DUB) and the cheapest return ticket found on this route in the last 5 days was €783.

  • 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 November, when tickets cost €401 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is €575 and €572 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 4 weeks before departure, which saves you about 19% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 7 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 28 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. All flights depart in the afternoon.

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

    Each week there are around 28 direct flights from within San Francisco Bay Area to Ireland. The most common day for departures is Monday, with 14% 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 23h 07m, covering a distance of 13064 km. The shortest route is San Francisco (SFO) to Dublin (DUB) with an average flight time of 10h 05m.

  • 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 28 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 (94% of total searches to Ireland). The next most popular destinations are Cork (3%) and Shannon (2%). Searches for flights to Milltown (Kerry) (1%) and to Knock (0%) 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.
7.3
Aer LingusOverall score based on 1767 reviews
7.0Entertainment
7.2Comfort
8.1Crew
7.5Boarding
6.7Food
Airline reviews

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

2.0 MediocreDeirdre, Aug 2026
Read more Aer Lingus reviews

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.

I liked how they looked after couples by providing a row of 4 seats if available.

More options for your flight to Ireland

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