$139 Cheap Delta flights Newark Liberty Intl. Airport (EWR) to San Diego (SAN)

Apply the “Price (lowest to highest)” filter on Expedia to find cheap Delta Air Lines round-trip flights from $277 from EWR to SAN. Affordable one-way tickets from $139 are also available.**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.

Delta Air Lines flights to San Diego tend to be cheaper in the quieter months of January and November. Whether you need a round-trip or one-way ticket, you could score a better deal then.

Begin your search one to three months before your departure to get cheap fares on Delta Air Lines flights from Liberty Intl. Airport (EWR) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic journeys.*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.

Fill in your dates, press search and select “Nonstop” on Expedia to find any direct flights from EWR to SAN with Delta Air Lines or another carrier.

Search Delta Air Lines’s earliest flights from EWR to SAN by using our “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being 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.

Catch a Delta Air Lines flight from Liberty Intl. Airport (EWR) to San Diego, and you’ll probably touch down at San Diego Intl. Airport (SAN). This is the airline’s primary hub in this city.

Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a top choice for many travelers heading from EWR to SAN. What’s more, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be spent on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of booking, but your airline may charge a fee after that. For further details about altering your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to update your itinerary without extra charges, tick the “No cancel fee” or “Changes included” filter when planning your next break.