$438 Cheap Aer Lingus flights San Francisco (SFO) to Dublin (DUB)

Use the "Price (lowest to highest)" filter on Expedia to find cheap Aer Lingus round-trip flights from $473 from SFO to DUB. Affordable one-way options from $438 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

To grab cheap flights from SFO to DUB with Aer Lingus, start searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another good tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

The earliest Aer Lingus flight from SFO to DUB takes off at 5:20PM UTC-8, landing at 11:25AM UTC+0. If you prefer to jet off later, the last Aer Lingus flight leaves SFO at 5:20PM UTC-8 and lands at DUB at 11:25AM UTC+0. Flying before noon is often a smart choice as morning flights are least likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

Taking off from SFO to DUB with Aer Lingus comes with a host of perks, including a rewarding loyalty program and a 4-star airline rating. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That's in addition to the Aer Lingus AerClub points you can earn with Aer Lingus.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.