Cheap Flights from San Diego (SDM) to Austin (AUS)

Featured airlines

American Airlines
United
Southwest Airlines
Delta
Spirit Airlines
JetBlue Airways
Frontier Airlines
Air India
Hawaiian Airlines
  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Find available prices by choosing your travel dates.
Flights from San Diego (SDM) to Austin (AUS)
Origin airport
Brown Field Municipal
Destination airport
Austin-Bergstrom Intl.
Distance
1149 mi

San Diego to Austin Flights

The cheapest times to fly from San Diego to Austin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Diego to Austin are during the month of . You can find some of the cheapest flights from San Diego to Austin with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Diego to Austin

Sunday is one of the best days to book for cheap flights from San Diego to Austin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Diego to Austin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Diego to Austin in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Diego to Austin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Diego to Austin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from San Diego, CA (SDM-Brown Field Municipal) to Austin-Bergstrom Intl. Airport (AUS) cost?
Discover the latest flight deals from SDM to AUS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SDM to AUS?
The cheapest flights from SDM to AUS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Diego, CA (SDM-Brown Field Municipal) to Austin-Bergstrom Intl. Airport (AUS)?
You can’t catch a direct flight to Austin-Bergstrom Intl. Airport (AUS) from San Diego, CA (SDM-Brown Field Municipal). However, you can easily travel to Austin without any layovers by departing from San Diego Intl. Airport (SAN).
What is the cheapest airline that flies from SDM to AUS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SDM to AUS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from San Diego, CA (SDM-Brown Field Municipal) to Austin-Bergstrom Intl. Airport (AUS)?
Nonstop flights from San Diego, CA (SDM-Brown Field Municipal) to Austin-Bergstrom Intl. Airport (AUS) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your travel details and choose either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from SDM to AUS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego, CA (SDM-Brown Field Municipal) to Austin-Bergstrom Intl. Airport (AUS)?
To reach Austin-Bergstrom Intl. Airport (AUS) on schedule, choose a flight that leaves San Diego, CA (SDM-Brown Field Municipal) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from San Diego, CA (SDM-Brown Field Municipal) to Austin-Bergstrom Intl. Airport (AUS) last-minute?
Waiting until just before your trip to book a flight from SDM to AUS often results in higher prices. While it’s possible to find some last-minute offers, they aren’t always guaranteed. Keep your travel schedule open to boost your chances of scoring a bargain.
Is it cheaper to book a SDM to AUS flight and hotel package?
Securing a SDM to AUS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our extensive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Diego, CA (SDM-Brown Field Municipal) to Austin-Bergstrom Intl. Airport (AUS)?
Usually, it’s possible to reschedule or cancel your SDM to AUS flight. However, if it’s been more than 24 hours since booking, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find further details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.