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$75+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — AUS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Austin Bergstrom are usually found in July or September, booked 52 days in advance, depart on a Wednesday or Friday and return on a Wednesday

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 August 14, 2025.

Round-trip from

$156
(Frontier)

One-way from

$75
(Priceline)

Popular in

March

Cheapest in

July

Average price

$265

Good round-trip deal

$176 or less

Good one-way deal

$109 or less
From San Diego to Austin Bergstrom
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One-way flight from San Diego to Austin Bergstrom
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Highest demand for flights based on searches. 8% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from San Diego to Austin Bergstrom.
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Price to beat on a one-way flight from San Diego to Austin Bergstrom.
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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 August 14, 2025.

This Frontier deal was found by Cheapflights users on 8/14. 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.
Sat 11/18:00 amSAN - AUS
1 stop6h 50mFrontier
Mon 11/36:00 amAUS - SAN
1 stop7h 08mFrontier
Deal found 8/14$156
This Frontier deal was found by Cheapflights users on 8/14. 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 9/512:04 pmSAN - AUS
2 stops9h 28mFrontier
Sun 9/712:39 pmAUS - SAN
Nonstop2h 57mFrontier
Deal found 8/14$157
This Frontier deal was found by Cheapflights users on 8/14. 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.
Thu 10/2312:46 pmSAN - AUS
Nonstop3h 07mFrontier
Sun 10/266:00 amAUS - SAN
1 stop5h 57mFrontier
Deal found 8/14$158
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:34 amSAN - AUS
1 stop24h 13mFrontier
Sun 8/2412:34 pmAUS - SAN
Nonstop2h 50mFrontier
Deal found 8/14$159
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:30 pmSAN - AUS
1 stop14h 14mFrontier
Wed 9/178:00 amAUS - SAN
1 stop16h 24mFrontier
Deal found 8/14$160
This Orbitz deal was found by Cheapflights users on 8/14. 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.
Wed 9/105:49 pmSAN - AUS
Nonstop3h 10mMultiple Airlines
Mon 9/1512:39 pmAUS - SAN
Nonstop2h 57mMultiple Airlines
Deal found 8/14$162
This Frontier deal was found by Cheapflights users on 8/14. 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.
Sun 10/1212:46 pmSAN - AUS
Nonstop2h 57mFrontier
Sun 10/129:06 pmAUS - SAN
2 stops14h 51mFrontier
Deal found 8/14$163
This Frontier deal was found by Cheapflights users on 8/14. 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.
Mon 8/188:31 amSAN - AUS
Nonstop3h 06mFrontier
Mon 8/252:47 pmAUS - SAN
1 stop6h 11mFrontier
Deal found 8/14$164
This Frontier deal was found by Cheapflights users on 8/14. 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.
Thu 10/96:41 amSAN - AUS
2 stops12h 43mFrontier
Mon 10/131:32 pmAUS - SAN
Nonstop3h 06mFrontier
Deal found 8/14$167
This eDestinos deal was found by Cheapflights users on 8/12. 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.
Mon 9/154:48 pmSAN - AUS
Nonstop3h 01mMultiple Airlines
Thu 9/186:00 amAUS - SAN
Nonstop3h 08mMultiple Airlines
Deal found 8/12$168
This Orbitz deal was found by Cheapflights users on 8/12. 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.
Mon 9/83:49 pmSAN - AUS
Nonstop3h 01mMultiple Airlines
Wed 9/106:00 amAUS - SAN
Nonstop3h 08mMultiple Airlines
Deal found 8/12$170

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 August 14, 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

Thu 11/6

6:00 pm-9:42 am

1 stop13h 42m

Austin Bergstrom

Sun 11/9

6:00 am-11:17 am

1 stop7h 17m

$156

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 10/24

1:02 pm-6:12 pm

Nonstop3h 10m

Austin Bergstrom

Tue 10/28

6:00 am-7:14 am

Nonstop3h 14m

$156

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 11/1

6:41 am-12:32 am

1 stop15h 51m

Austin Bergstrom

Sun 11/2

5:00 am-10:17 am

1 stop7h 17m

$156

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 11/1

8:00 am-4:50 pm

1 stop6h 50m

Austin Bergstrom

Mon 11/3

6:00 am-11:08 am

1 stop7h 08m

$156

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 11/8

8:00 am-4:50 pm

1 stop6h 50m

Austin Bergstrom

Sun 11/9

6:00 am-11:08 am

1 stop7h 08m

$156

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 11/7

6:25 am-7:32 pm

1 stop11h 07m

Austin Bergstrom

Mon 11/10

6:00 am-11:08 am

1 stop7h 08m

$156

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 10/31

10:20 am-11:34 pm

1 stop11h 14m

Austin Bergstrom

Sun 11/2

1:57 pm-10:55 pm

1 stop10h 58m

$156

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 9/18

6:25 am-1:26 pm

1 stop5h 01m

Austin Bergstrom

Mon 9/22

6:30 am-11:09 am

1 stop6h 39m

$156

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 9/5

12:04 pm-11:32 pm

2 stops9h 28m

Austin Bergstrom

Sun 9/7

12:39 pm-1:36 pm

Nonstop2h 57m

$157

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 9/13

10:16 am-10:00 pm

2 stops9h 44m

Austin Bergstrom

Mon 9/15

12:39 pm-1:36 pm

Nonstop2h 57m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 22 results
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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 August 8, 2025.

Booking 52 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, January is the cheapest month in which you can book a flight from San Diego to Austin (average of $286). 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 August 14, 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 at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 15% 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 August 10, 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.

Weekly flight availability from San Diego to Austin

Explore weekly flight availability from San Diego to Austin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 14, 2025.

The most flights from SAN to AUS are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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 August 14, 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,244 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,656 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Frontier
5.8
Fair
3,217 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 9 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 54m is how long a nonstop flight from San Diego to Austin Bergstrom typically takes.

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

    This flight path from San Diego to Austin Bergstrom was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 $108 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 (79%), Southwest (79%) or SkyWest Airlines (76%) 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 $197 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 $139.

  • 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, January is the cheapest month in which you can book a flight from San Diego to Austin (average of $286). 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
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Round Rock
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

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$205FlexibilityNo cancel feeOn-time65%
FrontierCheapest$108Average$199FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$123Average$287FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$148Average$337FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$162Average$307FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$193Average$310FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$363FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$306FlexibilityNo cancel feeOn-timeN/A

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