Cheap flights from Dublin to San Francisco from €399

The cheapest month to fly to San Francisco from Dublin is in January. Flight prices, which tend to average around €475, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to San Francisco from Dublin during November instead. Flights to San Francisco in November, while not as cheap as those in January, still average around €488.

On average, the least expensive day to fly to San Francisco from Dublin is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as €604. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €772.

According to our data, the cheapest time of day to fly to San Francisco is in the morning. momondo users have found flights departing from Dublin to San Francisco in the morning for as low as €667. 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 at midday when prices are €705 on average. Flights to San Francisco from Dublin at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 €634 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 €538 on momondo.

There are 2 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 70% 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.

Scandinavian Airlines, JetBlue, and WestJet are the most popular carriers operating from Dublin to San Francisco

Aer Lingus, JetBlue and American 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 79% 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.

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.

Boston (BOS) was the most common stop: 33% of momondo users choosing one-stop flights on this route connected there.

Flights via London (LHR) offer the lowest average return price of €454.

Flights connecting via London (LHR) have the shortest average one-way travel time: 14h 10m.

Newark (EWR) has the shortest average stopover time for this route: 2h 03m.

As of August 2026, there are 1 flights per day flying from Dublin to San Francisco. The most common time of day flights depart is 13:00, with 100% of flights taking off in the afternoon.

The number of flights available between Dublin and San Francisco is 12 per week as of August 2026. The most frequent departure day is Mon, with 33% of weekly flights leaving on this day.