$758 Cheap Aer Lingus flights Dublin (DUB) to San Diego (SAN)

Finding cheap one-way Aer Lingus flights from DUB to SAN from $758 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $724 for your next exciting getaway.**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.

Aer Lingus flights to San Diego are typically cheaper in the off-peak months of January and November. Whether you’re after a return or one-way ticket, you could find a better deal then.

Look for Aer Lingus flights from DUB to SAN about one month before you want to go. The most affordable time to reserve an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your itinerary or ticket type, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Passengers who book on a Sunday can save 17% on average compared to those who book on a Friday.**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.

Use our “Nonstop” filter when searching for direct Aer Lingus flights from DUB to SAN. You’ll also be able to compare other carriers servicing the same direct trip.

Search Aer Lingus’s earliest flights from DUB to SAN by checking our “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures are also 20% less likely to be canceled.**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.

Aer Lingus flights from Dublin Airport (DUB) to San Diego arrive at San Diego Intl. Airport (SAN). This is the main entry point to this destination.

On a standard economy flight with Aer Lingus from DUB to SAN, passengers can bring 1 checked-in bag up to 50 lb with dimensions not exceeding 62 inches in total. For carry-on, you’re permitted 1 cabin bag weighing up to 22 lb and measuring no more than 21 inches x 15 inches x 9 inches. Size and weight restrictions can vary depending on your fare type and cabin class. To make sure you won’t face extra fees at the airport, check your Aer Lingus booking or look up the airline’s website before you start packing.

Jetting off from DUB to SAN with Aer Lingus comes with a variety of perks, such as a 4-star airline rating and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That’s on top of 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.

Typically, you can cancel or change your flight, although additional charges may apply if you booked over 24 hours ago. Need flexible options? Make use of our “Changes included” and “No cancel fee” filters to find flights that won’t charge extra if you need to adjust your plans. To update your booking, visit “Trips,” select your flight and click on “Manage Booking” for more details.