Cheap flights from Ireland to San Francisco Bay Area from €377

The month of October is, on average, the cheapest month to fly to San Francisco Bay Area from Ireland, with most prices found around €247. If you aren’t able to travel to San Francisco Bay Area during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of €348.

On average, the least expensive day to fly to San Francisco Bay Area from Ireland is on a Sunday. momondo users have found tickets for Sunday departures for as low as €505. 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 Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €771.

According to our data, the cheapest time of day to fly to San Francisco Bay Area is in the morning. momondo users have found flights departing from Ireland to San Francisco Bay Area in the morning for as low as €664. 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 €667 on average. Flights to San Francisco Bay Area from Ireland 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 Ireland - San Francisco Bay Area flight prices

You are more likely to see cheaper flights to San Francisco Bay Area from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco Bay Area for around €627 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 Bay Area from Ireland for as low as €508 on momondo.

There are 2 cabin classes available to choose from on Ireland to San Francisco Bay Area flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Aer Lingus, Finnair, and British Airways are the most popular carriers operating from Ireland to San Francisco Bay Area

Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to San Francisco Bay Area from Ireland according to our data. Aer Lingus is the first choice among our users, with 77% of people opting to fly with this airline when travelling to San Francisco Bay Area. Keep in mind that there are 6 different airlines that fly to San Francisco Bay Area on a routine basis, so you have a few additional options to choose from.

4 flights are operational daily from Ireland to San Francisco Bay Area as of June 2026. The most popular departure time for this route is 13:00, with 100% of flights per day taking off in the afternoon.

As of June 2026, 28 flights take off from Ireland and land in San Francisco Bay Area each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.