Cheap flights from Ireland to San Francisco from €270
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to San Francisco departing on 18/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ireland to San Francisco
Recent return flight deals from Ireland to San Francisco
Recent one-way flight deals from Ireland to San Francisco
Recent last minute flight deals from Ireland to San Francisco
Recent direct flight deals from Ireland to San Francisco
Scandinavian Airlines flights from Ireland to San Francisco
Our best Scandinavian Airlines deals on Ireland to San Francisco flight tickets
TAP AIR PORTUGAL flights from Ireland to San Francisco
Our best TAP AIR PORTUGAL deals on Ireland to San Francisco flight tickets
See travel insights to San Francisco from
How to get the cheapest flight ticket from Ireland to San Francisco
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Francisco?
The cheapest month to fly to San Francisco from Ireland is in February. Flight prices, which tend to average around €501, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to San Francisco from Ireland during November instead. Flights to San Francisco in November, while not as cheap as those in February, still average around €516.
What is the cheapest day to depart on your flight to San Francisco?
On average, the least expensive day to fly to San Francisco from Ireland is on a Monday. momondo users have found tickets for Monday departures for as low as €563. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €832.
What is the cheapest time of day to depart on your flight to San Francisco?
According to our data, the cheapest time of day to fly to San Francisco is in the evening. momondo users have found flights departing from Ireland to San Francisco in the evening for as low as €535. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €964 on average. Flights to San Francisco from Ireland in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Ireland to San Francisco flight route?
Fly from Dublin to San Francisco for the best Ireland - San Francisco flight prices
How far in advance should I book a flight to San Francisco?
You are more likely to see cheaper flights to San Francisco from Ireland when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around €619 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Ireland for as low as €546 on momondo.
What cabin class options are available on Ireland to San Francisco flights?
There are 2 cabin classes available to choose from on Ireland to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ireland to San Francisco?
Iberia, WestJet, and Vueling are the most popular carriers operating from Ireland to San Francisco
Which airlines fly to San Francisco?
Aer Lingus, British Airways and United Airlines are the top three most popular airlines that fly to San Francisco from Ireland according to our data. Aer Lingus is the first choice among our users, with 55% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 8 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ireland to San Francisco on average per day?
As of June 2025, 2 flights take off from Ireland and land in San Francisco each day. The most common flight departure time for this route is 13:00, with 100% of daily flights taking off in the afternoon.
How many flights depart from Ireland to San Francisco on average per week?
The number of flights available between Ireland and San Francisco is 18 per week as of June 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.
Cheap Ireland to San Francisco flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to San Francisco
Best price found | €270 |
|---|---|
Fastest flight time | 10h 55m |
Direct flights | Every day |
Airports in San Francisco | 1 airport |
When did momondo last update prices for flights from Ireland to San Francisco Airport?
Prices for flights from Ireland to San Francisco Airport were last updated today.
How many operators does momondo search for flights from Ireland to San Francisco Airport?
The number of operators available for flights from Ireland to San Francisco Airport is 8 as of June 2025.
How old do you have to be to fly from Ireland to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ireland to San Francisco?
momondo data reveals that the most frequently booked plane model on the route from Ireland to San Francisco is Airbus A330, representing 49.66% of all bookings. The subsequent popular models are Airbus A330-300 at 36.58%, Airbus A330-200 at 4.70%, and Boeing 777 at 1.34%.
Best airlines flying from Ireland to San Francisco
Compare and see reviews for airlines that fly from Ireland to San Francisco with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €303 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom €339 | Free Cancellation | Rating 7.3 1,384 reviews | |||
| PriceFrom €441 | Free Cancellation | Rating 6.6 7,004 reviews | |||
| PriceFrom €473 | Free Cancellation | Rating 7.1 1,116 reviews | |||
| PriceFrom €488 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom €537 | Free Cancellation | Rating 7.4 8,784 reviews | |||
| PriceFrom €541 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom €637 | Free Cancellation | Rating 7.1 9,522 reviews |
Travelling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ireland to San Francisco?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Ireland.
Can I find flights from Ireland to San Francisco with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ireland to San Francisco flights to just show those with flexible booking policies.
How can momondo help me find flights from Ireland to San Francisco?
momondo helps you find the best flight between Ireland and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Ireland to San Francisco right now. Can momondo alert me if prices change?
Price alerts on flights to San Francisco from Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.