Cheap flights from San Francisco to Dublin from $397

In general, February is the cheapest month to fly from San Francisco to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $624. If you’re not able to fly to Dublin in February, then January is your next best option. Flight prices from San Francisco to Dublin during January average around $688.

The cheapest day to depart from San Francisco to Dublin is on a Sunday. Travelers who choose to depart for Dublin on a Sunday will often find tickets for as low as $918. Flights from San Francisco to Dublin on a Thursday will generally be more expensive and average around $1,090. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the evening is the cheapest time of day to fly from San Francisco to Dublin when you can find flight prices for as low as $680. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $998.

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

You are more likely to see cheaper flights to Dublin from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $922 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from San Francisco for as low as $804 on momondo.

There are 2 cabin classes available to choose from on San Francisco to Dublin 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 2% on your flight if you consider stops on a San Francisco to Dublin flight.

As of October 2026, prices for San Francisco to Dublin flights are approximately 10% cheaper when compared to flights at the same time last year.

Aer Lingus and United Airlines are the most popular carriers operating from San Francisco to Dublin

Aer Lingus, American Airlines and United Airlines are the top three most popular airlines that fly to Dublin from San Francisco according to our data. Aer Lingus is the first choice among our users, with 83% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 14 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% of flights between San Francisco and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

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

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

Boston (BOS) was the most common stop: 32% of momondo users choosing 1-stop flights on this route connected there.

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $561.

Flights connecting via London (LHR) have the shortest average one-way travel time: 14h 00m.

Chicago (ORD) has the shortest average layover time for this route: 1h 54m.

As of October 2026, there are 2 flights per day flying from San Francisco to Dublin. The most common time of day flights depart is 5:00PM, with 100% of flights taking off in the afternoon.

The number of flights available between San Francisco and Dublin is 20 per week as of October 2026. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.