Question 1

How long does it take to fly to San Francisco?

Accepted Answer

The flight from Ireland to San Francisco depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Dublin (a popular airport in Ireland) to San Francisco (the most popular airport in San Francisco), then the flight time is 10h 55m on average. If you fly from Cork (another popular airport in Ireland) to San Francisco, then the average flight time is 13h 45m.

Question 2

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

Accepted Answer

You are more likely to see cheaper flights to San Francisco from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around €603 when searching weeks before you fly. 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 €514 on momondo.

Question 3

How many flights depart from Ireland to San Francisco on average per week?

Accepted Answer

The number of flights available between Ireland and San Francisco is 24 per week as of August 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

Question 4

Which airlines fly to San Francisco?

Accepted Answer

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 56% 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.

Question 5

What is the cheapest day to depart on your flight to San Francisco?

Accepted Answer

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 €555. 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 €667.

Question 6

How many flights depart from Ireland to San Francisco on average per day?

Accepted Answer

As of August 2025, 3 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.

Question 7

What is the cheapest Ireland to San Francisco flight route?

Accepted Answer

Fly from Dublin to San Francisco for the best Ireland - San Francisco flight prices

Question 8

Can stopping save me money on Ireland to San Francisco flights?

Accepted Answer

You could potentially save up to 30% on your flight if you consider stops on a Ireland to San Francisco flight.

Question 9

What is the cheapest time of day to depart on your flight to San Francisco?

Accepted Answer

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 €525. 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 €945 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.

Question 10

What is the cheapest month to fly to San Francisco?

Accepted Answer

The cheapest month to fly to San Francisco from Ireland is in February. Flight prices, which tend to average around €485, 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 €506.

Question 11

What is the cheapest airline that flies from Ireland to San Francisco?

Accepted Answer

Aer Lingus, Lufthansa, and Brussels Airlines are the most popular carriers operating from Ireland to San Francisco

Question 12

What cabin class options are available on Ireland to San Francisco flights?

Accepted Answer

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.

Question 13

When did momondo last update prices for flights from Ireland to San Francisco Airport?

Accepted Answer

Prices for flights from Ireland to San Francisco Airport were last updated today.

Question 14

How many operators does momondo search for flights from Ireland to San Francisco Airport?

Accepted Answer

The number of operators available for flights from Ireland to San Francisco Airport is 8 as of August 2025.

Question 15

How old do you have to be to fly from Ireland to San Francisco Airport?

Accepted Answer

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.

Question 16

What documentation or ID do you need to fly to San Francisco Airport?

Accepted Answer

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.

Best price found	€654
Fastest flight time	10h 55m
Direct flights	Every day
Airports in San Francisco	1 airport

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom €297	Free Cancellation	Rating 7.9 7,979 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom €332	Free Cancellation	Rating 7.4 1,477 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom €394	Free Cancellation	Rating 6.7 7,309 reviews	Search British Airways flights
Aer Lingus	PriceFrom €463	Free Cancellation	Rating 7.2 1,237 reviews	Search Aer Lingus flights
KLM	PriceFrom €479	Free Cancellation	Rating 7.8 1,387 reviews	Search KLM flights
United Airlines	PriceFrom €527	Free Cancellation	Rating 7.4 8,943 reviews	Search United Airlines flights
American Airlines	PriceFrom €530	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Air Canada	PriceFrom €588	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights

Cheap flights from Ireland to San Francisco from €313

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 22/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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What is the cheapest month to fly to San Francisco?

What is the cheapest day to depart on your flight to San Francisco?

What is the cheapest time of day to depart on your flight to San Francisco?

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?

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.

Can stopping save me money on Ireland to San Francisco flights?

You could potentially save up to 30% on your flight if you consider stops on a Ireland to San Francisco flight.

What is the cheapest airline that flies from Ireland to San Francisco?

Aer Lingus, Lufthansa, and Brussels Airlines are the most popular carriers operating from Ireland to San Francisco

Which airlines fly to San Francisco?

How many flights depart from Ireland to San Francisco on average per day?

As of August 2025, 3 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 24 per week as of August 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

How long does it take to fly to San Francisco?

Cheap Ireland to San Francisco flight deals and tips

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When did momondo last update prices for flights from Ireland to San Francisco Airport?

How many operators does momondo search for flights from Ireland to San Francisco Airport?

How old do you have to be to fly from Ireland to San Francisco Airport?

What documentation or ID do you need to fly to San Francisco Airport?

What is the most popular plane model from Ireland to San Francisco?

Best airlines flying from Ireland to San Francisco

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