$69 Cheap Flights from Austin (AUS) to San Diego (SAN)

View $69 flight on Thu, Dec 11, 2025Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)

Today's featured flight deals from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Austin to San Diego (AUS-SAN)

Prices were available within the past 7 days and start at $69 for one-way flights and $119 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Sep 22 - Thu, Oct 9
AUS
Austin
SAN
San Diego
$119 Roundtrip, found 1 day ago
$119
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Sep 22 from Austin to San Diego, returning Thu, Oct 9, priced at $119 found 1 day ago
Frontier Airlines
Mon, Dec 8 - Thu, Dec 11
AUS
Austin
SAN
San Diego
$132 Roundtrip, found 1 hour ago
$132
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Austin to San Diego, returning Thu, Dec 11, priced at $132 found 1 hour ago
Frontier Airlines
Mon, Oct 27 - Sun, Nov 2
AUS
Austin
SAN
San Diego
$141 Roundtrip, found 19 hours ago
$141
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Mon, Oct 27 from Austin to San Diego, returning Sun, Nov 2, priced at $141 found 19 hours ago
Frontier Airlines
Thu, Dec 4 - Sun, Dec 7
AUS
Austin
SAN
San Diego
$141 Roundtrip, found 1 hour ago
$141
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Dec 4 from Austin to San Diego, returning Sun, Dec 7, priced at $141 found 1 hour ago
Frontier Airlines
Thu, Dec 11 - Sun, Dec 14
AUS
Austin
SAN
San Diego
$142 Roundtrip, found 1 hour ago
$142
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Dec 11 from Austin to San Diego, returning Sun, Dec 14, priced at $142 found 1 hour ago
Frontier Airlines
Fri, Dec 5 - Sun, Dec 7
AUS
Austin
SAN
San Diego
$150 Roundtrip, found 3 hours ago
$150
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Fri, Dec 5 from Austin to San Diego, returning Sun, Dec 7, priced at $150 found 3 hours ago
United
Tue, Nov 11 - Thu, Nov 13
AUS
Austin
SAN
San Diego
$153 Roundtrip, found 3 hours ago
$153
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Nov 11 from Austin to San Diego, returning Thu, Nov 13, priced at $153 found 3 hours ago
American Airlines
Tue, Nov 11 - Thu, Nov 13
AUS
Austin
SAN
San Diego
$158 Roundtrip, found 3 hours ago
$158
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, Nov 11 from Austin to San Diego, returning Thu, Nov 13, priced at $158 found 3 hours ago
Southwest Airlines
Tue, Oct 21 - Mon, Oct 27
AUS
Austin
SAN
San Diego
$165 Roundtrip, found 19 hours ago
$165
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Tue, Oct 21 from Austin to San Diego, returning Mon, Oct 27, priced at $165 found 19 hours ago
Alaska Airlines
Sat, Dec 6 - Mon, Dec 8
AUS
Austin
SAN
San Diego
$172 Roundtrip, found 3 hours ago
$172
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Austin to San Diego, returning Mon, Dec 8, priced at $172 found 3 hours ago

Find the cheapest month to fly from Austin (AUS) to San Diego (SAN)

February is typically the cheapest month to fly

From $91 - $302 per traveler.

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN) cost?
Lock in a cheap one-way flight from $69 or cheap return flight from $119 from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
Planning your getaway for September is a great way to save, as it's the cheapest month for flights between AUS and SAN. You'll often find the lowest fares during off-peak months.
Which airlines fly direct from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
When departing from Austin-Bergstrom Intl. Airport (AUS), you can take a direct flight to San Diego Intl. Airport (SAN) with Southwest Airlines.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
While prices can vary depending on when you travel, Alaska Airlines and Southwest Airlines are often frequently picked for flights between Austin-Bergstrom Intl. Airport (AUS) and San Diego Intl. Airport (SAN). You can also compare carriers on Expedia and use the "Sort by" filter to find the lowest-priced ticket for your AUS to SAN flight.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
Every day on average, 4 direct flights take off from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN). Select the departure time that best suits your plans.
What are the most popular departure times for flights from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
Flights between AUS and SAN are busiest at 6 AM. If you want a quieter experience and potentially cheaper tickets, choose a departure that's outside typical rush times.
What day of the week has the most flights from AUS to SAN?
If you depart on a Friday, you'll get the biggest range of options for flights from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN).
What is the earliest flight from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
Austin-Bergstrom Intl. Airport (AUS)'s first flight to San Diego Intl. Airport (SAN) takes off at approximately 6:10AM UTC-6. With a total flight time of 3h 20m, you'll land at around 7:30AM UTC-8.
How long does it take to fly from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
Flights from AUS to SAN have an average travel time of 3 hours and 15 minutes. The total distance between these two airports is 1,150 mi.
What airline has the least delays from AUS to SAN?
Consider traveling with American Airlines if you'd like to fly straight from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN) without any interruptions. This airline has the best track record for punctuality, with an on-time performance of 87%. Want to get notified of any changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
To avoid possible delays on the Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN) route, fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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.
What airports do you fly into for San Diego from Austin-Bergstrom Intl. Airport (AUS)?
San Diego Intl. Airport (SAN) is the only airport in San Diego with direct flights from Austin-Bergstrom Intl. Airport (AUS). Compare your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN) last-minute?
Holding off until just before your departure to book a ticket from AUS to SAN often results in higher prices. Although you may find some last-minute offers, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of getting a bargain.
Is it cheaper to book an AUS to SAN flight and hotel package?
You'll generally save money by booking an AUS to SAN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your ideal flights and accommodations, consider adding extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN)?
You can usually reschedule or cancel your AUS to SAN flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Austin-Bergstrom Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$119
Distance
1162 mi
Average flight time
1 hour 3 mins

Book with confidence

Book with confidence

Austin to San Diego Flights

The cheapest times to fly from Austin to San Diego

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 Austin to San Diego are during the month of September. You can find some of the cheapest flights from Austin to San Diego with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Austin to San Diego: 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 Austin to San Diego

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 Austin to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $69 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 Austin to San Diego 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 Austin to San Diego 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.

 

Austin to San Diego Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.