Cheap flights from San Francisco to Ireland from €299

The month of August is another great option to travel to Ireland, with average flight prices from San Francisco averaging around €308.

The cheapest day to depart on your flight to Ireland is on a Saturday when prices can be found for as low as €742. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €1,221. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

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

You are more likely to see cheaper flights to Ireland from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €702 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from San Francisco for as low as €618 on momondo.

You could potentially save up to 11% on your flight if you consider stops on a San Francisco to Ireland flight.

Historically, on average around 9% of flights between San Francisco and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 178 minutes.

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

Saturday is statistically the day of the week that experiences the fewest 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 fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

As of May 2026, 4 flights take off from San Francisco and land in Ireland each day. The most common flight departure time for this route is 17:00, with 100% of daily flights taking off in the afternoon.

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