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Cheap flights from San Diego to Austin from £63

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — AUS
17 Feb — 24 Feb1
1 adult
1 adult, Economy, 0 bags

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 18 January 2026.

Round-trip from

£125

One-way from

£63

Popular in

March

Cheapest in

July

Average price

£183
Alaska Airlines
  • Alaska Airlines
  • 18/2-21/2
  • Nonstop
  • 6h 28m total
  • San Diego to Austin
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Alaska Airlines
  • Alaska Airlines
  • 14/4
  • Nonstop
  • 3h 06m total
  • San Diego to Austin
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Find flight deals from San Diego to Austin

Enter your travel dates to find the best prices.

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 18 January 2026.

Wed 18/214:19
SAN
-
AUS
Nonstop2h 56m
Alaska Airlines
Sat 21/214:15
AUS
-
SAN
Nonstop3h 32m
Alaska Airlines
Deal found 15/1£125
Wed 25/318:00
SAN
-
AUS
Nonstop3h 04m
Alaska Airlines
Thu 26/306:00
AUS
-
SAN
Nonstop3h 31m
Alaska Airlines
Deal found 17/1£136
Fri 13/219:10
SAN
-
AUS
Nonstop2h 55m
Southwest
Sun 15/221:15
AUS
-
SAN
Nonstop3h 15m
Southwest
Deal found 15/1£147
Fri 1/512:10
SAN
-
AUS
1 stop5h 17m
United Airlines
Tue 5/507:11
AUS
-
SAN
Nonstop6h 43m
United Airlines
Deal found 16/1£148
Fri 20/219:10
SAN
-
AUS
Nonstop2h 55m
Southwest
Sat 21/218:10
AUS
-
SAN
1 stop5h 30m
Southwest
Deal found 17/1£155
Sat 14/306:40
SAN
-
AUS
Nonstop2h 50m
Southwest
Sat 21/306:35
AUS
-
SAN
Nonstop3h 15m
Southwest
Deal found 16/1£158
Thu 16/420:39
SAN
-
AUS
1 stop6h 17m
United Airlines
Sun 19/420:08
AUS
-
SAN
1 stop5h 51m
United Airlines
Deal found 17/1£159
Sat 28/319:30
SAN
-
AUS
Nonstop2h 50m
Southwest
Wed 1/420:35
AUS
-
SAN
Nonstop3h 10m
Southwest
Deal found 16/1£166
Sat 14/319:30
SAN
-
AUS
Nonstop2h 50m
Southwest
Mon 16/321:30
AUS
-
SAN
Nonstop3h 10m
Southwest
Deal found 16/1£170
Fri 6/215:25
SAN
-
AUS
Nonstop2h 45m
Southwest
Thu 12/221:10
AUS
-
SAN
Nonstop3h 10m
Southwest
Deal found 16/1£170
Wed 18/206:15
SAN
-
AUS
1 stop9h 45m
Alaska Airlines
Fri 20/219:55
AUS
-
SAN
Nonstop3h 34m
Alaska Airlines
Deal found 17/1£173

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 18 January 2026.
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

Sat 9/5

18:00-23:03

Nonstop3h 03m

Austin Bergstrom

Wed 13/5

06:00-07:21

Nonstop3h 21m

£125

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Wed 18/2

14:19-19:15

Nonstop2h 56m

Austin Bergstrom

Sat 21/2

14:15-15:47

Nonstop3h 32m

£125

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Wed 25/3

18:00-23:04

Nonstop3h 04m

Austin Bergstrom

Fri 27/3

06:00-07:31

Nonstop3h 31m

£136

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Wed 11/2

14:17-19:19

Nonstop3h 02m

Austin Bergstrom

Thu 19/2

19:55-21:29

Nonstop3h 34m

£136

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 13/2

19:10-00:05

Nonstop2h 55m

Austin Bergstrom

Mon 16/2

06:40-07:55

Nonstop3h 15m

£147

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 13/3

08:23-13:28

Nonstop3h 05m

Austin Bergstrom

Sun 22/3

06:00-07:31

Nonstop3h 31m

£147

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 14/3

06:40-11:30

Nonstop2h 50m

Austin Bergstrom

Sat 21/3

06:35-07:50

Nonstop3h 15m

£158

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 16/4

20:39-04:56

1 stop6h 17m

Austin Bergstrom

Sun 19/4

20:08-23:59

1 stop5h 51m

£159

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 23/4

20:39-04:56

1 stop6h 17m

Austin Bergstrom

Mon 27/4

20:08-23:59

1 stop5h 51m

£159

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 9/5

09:45-17:32

1 stop5h 47m

Austin Bergstrom

Wed 13/5

07:20-10:27

1 stop5h 07m

£162

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 18 results
1
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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 return 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 return flight from San Diego to Austin. Price data was last updated on 9 January 2026.

The best time to book flights from San Diego to Austin is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 £60). Flying from San Diego to Austin in March is currently the most expensive (average of £110). 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 18 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Austin as you normally would.

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.

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

    This flight path from San Diego to Austin Bergstrom was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Alaska Airlines can get you from San Diego to Austin in just under 3h 03m. Your travel time will be generally consistent. The distance between San Diego and Austin is about 1162 mi. Generally, flights for this route are direct.

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

    The top 3 most reliable airlines when flying from San Diego to Austin are SkyWest Airlines (87%), Alaska Airlines (87%) and Hawaiian Airlines (85%).

  • 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 holiday 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 £60). Flying from San Diego to Austin in March is currently the most expensive (average of £110). 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

Travelling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Round Rock

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Why should you use Cheapflights to find cheap flight tickets from San Diego to Austin?

Cheapflights helps you find that perfect flight to Austin from San Diego by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from San Diego to Austin with no change fees?

Yes! Cheapflights helps users easily find flights from San Diego to Austin with no change fees.

Can Cheapflights notify me if prices for flights from San Diego to Austin become cheaper?

Yes! Start tracking prices for San Diego to Austin flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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