Austin

$77+ Cheap flights from San Diego to Austin (SAN - AUS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — AUS
Oct 29 — Nov 51
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Find cheap flights from San Diego to Austin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from San Diego to Austin Bergstrom are usually found in July or August, booked 49 days in advance, depart on a Friday or Wednesday and return on a Friday

Cheap flight deals from San Diego to Austin

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$141
(Cheapflightsfares)

One-way from

$77
(Trip.com)

Popular in

March

Cheapest in

July

Average price

$258

Good round-trip deal

$166 or less

Good one-way deal

$116 or less
Provider with most accurate pricing for San Diego-Austin Bergstrom flight deals.
Provider most trusted by Cheapflights users for San Diego-Austin Bergstrom flights.
From San Diego to Austin Bergstrom
One-way flight from San Diego to Austin Bergstrom
Highest demand for flights based on searches. 9% potential increase in price ($29 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from San Diego to Austin Bergstrom.
Price to beat on a one-way flight from San Diego to Austin Bergstrom.

Find flight deals from San Diego to Austin

Cheapest flights from San Diego to Austin
Explore the most affordable flight options available from San Diego to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:46 pmSAN - AUS
Nonstop3h 07mFrontier
Sun 10/262:23 pmAUS - SAN
Nonstop2h 58mFrontier
Deal found 9/27$141
This Orbitz deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/255:58 pmSAN - AUS
Nonstop3h 09mMultiple Airlines
Mon 10/271:32 pmAUS - SAN
Nonstop2h 58mMultiple Airlines
Deal found 9/26$142
This Frontier deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:25 pmSAN - AUS
Nonstop2h 57mFrontier
Mon 11/32:08 pmAUS - SAN
Nonstop3h 06mFrontier
Deal found 9/26$143
This eDestinos deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2612:46 pmSAN - AUS
Nonstop3h 07mFrontier
Sun 11/22:08 pmAUS - SAN
Nonstop3h 06mFrontier
Deal found 9/26$144
This Cheapflightsfares deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/175:58 pmSAN - AUS
Nonstop3h 09mAlaska Airlines
Sun 10/196:00 amAUS - SAN
Nonstop3h 16mAlaska Airlines
Deal found 9/27$145
This Southwest deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:20 pmSAN - AUS
Nonstop2h 45mSouthwest
Sun 11/96:05 amAUS - SAN
Nonstop3h 10mSouthwest
Deal found 9/25$149
This Cheapflightsfares deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:02 pmSAN - AUS
Nonstop3h 10mFrontier
Sun 10/262:23 pmAUS - SAN
Nonstop2h 58mFrontier
Deal found 9/27$150
This Priceline deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:20 pmSAN - AUS
Nonstop2h 57mFrontier
Tue 11/47:45 amAUS - SAN
1 stop6h 22mFrontier
Deal found 9/28$154
This Booking.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:20 pmSAN - AUS
Nonstop2h 57mFrontier
Mon 11/310:37 amAUS - SAN
1 stop27h 30mFrontier
Deal found 9/26$156
This Booking.com deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/912:46 pmSAN - AUS
Nonstop3h 07mFrontier
Wed 10/156:00 amAUS - SAN
1 stop19h 50mFrontier
Deal found 9/28$158
This Southwest deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:05 amSAN - AUS
Nonstop3h 00mSouthwest
Fri 10/246:55 pmAUS - SAN
1 stop6h 15mSouthwest
Deal found 9/26$159

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Austin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 29, 2025.
Use the filters below to find and compare flights from San Diego to Austin that are best for you.

Fly from

San Diego

Fly to

Austin

Route

Depart

Return

Price

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Tue 10/21

8:58 am-2:15 pm

Nonstop3h 17m

Austin Bergstrom

Thu 10/23

2:55 pm-4:05 pm

Nonstop3h 10m

$149

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Wed 11/19

5:10 pm-10:13 pm

Nonstop3h 03m

Austin Bergstrom

Sun 11/23

6:00 am-7:30 am

Nonstop3h 30m

$149

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Tue 10/21

8:58 am-2:15 pm

Nonstop3h 17m

Austin Bergstrom

Fri 10/24

2:55 pm-4:05 pm

Nonstop3h 10m

$149

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 12/5

9:30 am-5:00 pm

1 stop5h 30m

Austin Bergstrom

Mon 12/8

7:55 pm-9:05 pm

Nonstop3h 10m

$154

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Tue 10/21

7:05 am-12:05 pm

Nonstop3h 00m

Austin Bergstrom

Fri 10/24

6:55 pm-11:10 pm

1 stop6h 15m

$159

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Tue 10/21

10:20 am-5:55 pm

1 stop5h 35m

Austin Bergstrom

Thu 10/23

6:55 pm-11:10 pm

1 stop6h 15m

$168

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 10/25

7:35 am-2:45 pm

1 stop5h 10m

Austin Bergstrom

Mon 10/27

5:40 pm-8:20 pm

1 stop4h 40m

$168

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 11/20

1:52 pm-12:14 am

1 stop8h 22m

Austin Bergstrom

Sun 11/23

6:00 am-7:30 am

Nonstop3h 30m

$193

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 11/20

1:52 pm-12:14 am

1 stop8h 22m

Austin Bergstrom

Mon 11/24

6:00 am-7:30 am

Nonstop3h 30m

$193

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 10/23

5:58 pm-11:07 pm

Nonstop3h 09m

Austin Bergstrom

Sat 10/25

6:00 am-7:16 am

Nonstop3h 16m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 22 results
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2
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Compare providers for flights from San Diego to Austin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Austin in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Austin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Austin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Austin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Diego to Austin flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Austin trip
Airports
SAN

Plan to arrive at SAN two hours before your flight to avoid stress from potential traffic congestion near the airport.

Read more about SANby Blane Bachelor
AUS

Use the CapMetro Route 20 bus for a budget-friendly ride from AUS to downtown Austin, running every 15 minutes during peak hours.

Read more about AUSby Ramsey Qubein
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on AUS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from San Diego to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Austin

How far ahead should I book a flight from San Diego to Austin?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Austin. Price data was last updated on September 26, 2025.

Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Austin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Diego to Austin?

Currently, August is the cheapest month in which you can book a flight from San Diego to Austin (average of $285). Flying from San Diego to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to AUS?

Find hourly flight availability from San Diego to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2025.

One of the essential ways to save on airfare from San Diego to Austin is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 14% on airfare.

What is the cheapest day to fly from San Diego to Austin?

Use this chart to determine the cheapest time to fly round-trip from San Diego to Austin. Price data was last updated on September 28, 2025.

Travelers seeking maximum savings on their San Diego to Austin flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Austin. Reviews last updated September 29, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Hawaiian Airlines from San Diego to Austin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from San Diego to Austin?

    If you wish to fly to Austin from San Diego, then you need to book flights from San Diego to Austin Bergstrom. There are 8 flights from San Diego (SAN) to Austin Bergstrom (AUS) per day to choose from. Flights to Austin from San Diego are available from 8 different airlines, which means you should have some options if you want to compare airfare deals. 2h 45m is how long a nonstop flight from San Diego to Austin Bergstrom typically takes.

  • How popular is this San Diego to Austin flight route?

  • How long is the flight from San Diego to Austin?

    For as low as $149, Alaska Airlines can have you in Austin from San Diego in 3h 17m. There are 1162 mi between San Diego and Austin. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from San Diego to Austin round-trip?

    Currently priced at $82, Spirit Airlines will fly you from San Diego to Austin and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Hawaiian Airlines - these airlines can fly you to your destination from $88 and $123, respectively. Spirit Airlines is priced at 71% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from San Diego to Austin?

    No one likes to see their flight delayed. When booking a flight from San Diego to Austin consider choosing Frontier (87%), SkyWest Airlines (82%) or American Airlines (82%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Diego to Austin?

    On average you can expect to pay $433 for a flight from San Diego to Austin. The cheapest flight overall is $64 while the most popular route, (San Diego - Austin Bergstrom) is currently priced at $117.

  • Can I find deals for flights from San Diego to Austin that include hotel bookings?

    Yes. In addition to deals on San Diego to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Austin.

  • Can I find deals for business class flights from San Diego to Austin?

    Yes. Cheapflights offers flight deals from San Diego to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Austin?

    Currently, August is the cheapest month in which you can book a flight from San Diego to Austin (average of $285). Flying from San Diego to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Round Rock
San Marcos
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Cedar Park
Canyon Lake
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Diego to Austin

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from San Diego to Austin

Discover the top 8 airlines that operate flights from San Diego to Austin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$205FlexibilityNo cancel feeOn-time65%
FrontierCheapest$88Average$191FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$123Average$288FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$148Average$337FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$190Average$311FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$197Average$318FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$216Average$364FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$277FlexibilityNo cancel feeOn-timeN/A

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