Cheap flights from Dublin to San Francisco from £403

The month of January is, on average, the cheapest month to fly to San Francisco from Dublin, with most prices found around £407. If you are unable to visit San Francisco during the month of January, then departing from Dublin during the month November is also very affordable. Most momondo users find prices during this month for around £418.

The cheapest day to depart on your flight to San Francisco is on a Wednesday when prices can be found for as low as £459. This is often the case because there is less demand to fly during this day of the week. Flights from Dublin to San Francisco on a Sunday will generally be more expensive and average around £832. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to San Francisco is at midday. Flights from Dublin to San Francisco during this time can be as low as £533. Try not to purchase tickets in the morning because they tend to be around £537. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to San Francisco from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around £543 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 Dublin for as low as £461 on momondo.

There are 4 cabin classes available to choose from on Dublin to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 5% on your flight if you consider stops on a Dublin to San Francisco flight.

As of August 2026, prices for Dublin to San Francisco flights are approximately 2% more expensive when compared to flights at the same time last year.

JetBlue, TAP AIR PORTUGAL, and British Airways are the most popular carriers operating from Dublin to San Francisco

Aer Lingus, British Airways and United Airlines are the top three most popular airlines that fly to San Francisco from Dublin according to our data. Aer Lingus is the first choice among our users, with 85% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 6 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between Dublin and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 124 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

London (LHR) was the most common stop: 75% of momondo users choosing one-stop flights on this route connected there.

Flights via Istanbul (IST) offer the lowest average return price of £1,445.

Flights connecting via London (LHR) have the shortest average one-way travel time: 15h 15m.

London (LHR) has the shortest average stopover time for this route: 2h 33m.

The number of flights available between Dublin and San Francisco is 4 per day as of August 2026. The most frequent departure time is 13:00, with 100% of daily flights leaving in the afternoon.

As of August 2026, there are 28 flights per week flying from Dublin to San Francisco. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.