Cheap flights from California to Ireland from €270

The month of January is another great option to travel to Ireland, with average flight prices from California averaging around €591.

The cheapest day to depart on your flight to Ireland is on a Friday when prices can be found for as low as €433. 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 Monday because tickets tend to average around €797. 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 California - Ireland flight prices

You are more likely to see cheaper flights to Ireland from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €733 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 California for as low as €670 on momondo.

There are 2 cabin classes available to choose from on California to Ireland 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 14% on your flight if you consider stops on a California to Ireland flight.

6 flights are operational daily from California to Ireland as of September 2026. The most popular departure time for this route is 17:00, with 50% of flights per day taking off in the afternoon.

The number of flights available between California and Ireland is 44 per week as of September 2026. The most frequent departure day is Tue, with 18% of weekly flights leaving on this day.