$120 Cheap Delta flights Austin (AUS) to San Diego (SAN)

Use the “Price (lowest to highest)” filter on Expedia to find cheap Delta Air Lines round-trip flights from $239 from AUS to SAN. Affordable one-way fares from $120 are available too.**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.

Search for return or one-way flights to San Diego in January or November. You could find a cheap fare with Delta Air Lines during these off-peak times.

Search for affordable Delta Air Lines flights from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN) one to three months prior to your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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.

Simply enter your dates, click search and check the “Nonstop” filter on Expedia to find any direct flights from AUS to SAN with Delta Air Lines or other carriers.

Browse Delta Air Lines’s earliest flights from AUS to SAN by checking the “Morning” and “Early Morning” filters. Not only will you arrive 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.

San Diego Intl. Airport (SAN) is the primary San Diego hub for Delta Air Lines flights from Austin-Bergstrom Intl. Airport (AUS).

Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a popular option for many passengers flying from AUS 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 you can put toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee typically applies if you modify or cancel your flight more than 24 hours after confirmation. To find tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when you search for flights. For more information on canceling or modifying your reservation, head to “Trips,” select your flight and tick “Manage Booking.”