$67 Cheap Flights from Austin (AUS) to San Diego (SAN)

View $67 flight on Wed, Sep 24, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $67 for one-way flights and $121 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Fri, Oct 17 - Tue, Oct 21
AUS
Austin
SAN
San Diego
$121 Roundtrip, found 4 hours ago
$121
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Fri, Oct 17 from Austin to San Diego, returning Tue, Oct 21, priced at $121 found 4 hours ago
Frontier Airlines
Fri, Oct 17 - Tue, Oct 21
AUS
Austin
SAN
San Diego
$126 Roundtrip, found 4 hours ago
$126
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Fri, Oct 17 from Austin to San Diego, returning Tue, Oct 21, priced at $126 found 4 hours ago
Southwest Airlines
Sun, Oct 5 - Tue, Oct 7
AUS
Austin
SAN
San Diego
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Southwest Airlines flight, departing Sun, Oct 5 from Austin to San Diego, returning Tue, Oct 7, priced at $128 just found
Bargain Flight
Wed, Aug 27 - Sat, Aug 30
AUS
Austin
SAN
San Diego
$130 Roundtrip, found 11 hours ago
$130
Roundtrip
found 11 hours ago
Select Bargain Flight flight, departing Wed, Aug 27 from Austin to San Diego, returning Sat, Aug 30, priced at $130 found 11 hours ago
Bargain Flight
Fri, Aug 15 - Tue, Aug 19
AUS
Austin
SAN
San Diego
$131 Roundtrip, found 2 hours ago
$131
Roundtrip
found 2 hours ago
Select Bargain Flight flight, departing Fri, Aug 15 from Austin to San Diego, returning Tue, Aug 19, priced at $131 found 2 hours ago
Frontier Airlines
Sun, Oct 5 - Tue, Oct 7
AUS
Austin
SAN
San Diego
$133 Roundtrip, just found
$133
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Oct 5 from Austin to San Diego, returning Tue, Oct 7, priced at $133 just found
Southwest Airlines
Tue, Sep 23 - Thu, Sep 25
AUS
Austin
SAN
San Diego
$133 Roundtrip, just found
$133
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Sep 23 from Austin to San Diego, returning Thu, Sep 25, priced at $133 just found
American Airlines
Fri, Oct 17 - Tue, Oct 21
AUS
Austin
SAN
San Diego
$134 Roundtrip, found 4 hours ago
$134
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Fri, Oct 17 from Austin to San Diego, returning Tue, Oct 21, priced at $134 found 4 hours ago
Spirit Airlines
Mon, Aug 11 - Tue, Oct 7
AUS
Austin
SAN
San Diego
$134 Roundtrip, found 1 day ago
$134
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Mon, Aug 11 from Austin to San Diego, returning Tue, Oct 7, priced at $134 found 1 day ago
Spirit Airlines
Fri, Aug 8 - Fri, Aug 15
AUS
Austin
SAN
San Diego
$135 Roundtrip, found 2 hours ago
$135
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Fri, Aug 8 from Austin to San Diego, returning Fri, Aug 15, priced at $135 found 2 hours ago

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

February is typically the cheapest month to fly

From $84 - $307 per traveler.

Graph displaying average flight prices per month

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $636
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $636
Select flight to McClellan-Palomar CLD. Average driving time to city center is 38 minutes. Flights from $259
CLD
McClellan-Palomar
Average driving time to city center38 min
Flights from $259
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Flights from Austin (AUS) to San Diego (SAN)
Origin airport
Austin-Bergstrom Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$121
Distance
1162 mi

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 October. 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 $67 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.

 

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN) cost?
You can score cheap return tickets from Austin-Bergstrom Intl. Airport (AUS) to San Diego Intl. Airport (SAN) starting from $150. Reserve your seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving AUS on July 18 2025 and touching down at SAN. The price was last updated on July 7 2025 and has not changed since.
What is the cheapest month to fly from AUS to SAN?
The cheapest flights from AUS to SAN 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 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 AUS to SAN?
With prices starting from $75 for a one-way journey from AUS to SAN, Frontier Airlines is currently the cheapest carrier operating this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from AUS on September 29 2025. Prices were last updated on July 7 2025 and have not changed since.
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.

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