Cheap flights from San Diego to Austin from £53

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — AUS
12 10월 — 19 10월1
1 adult
1 adult, Economy

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 12 9월 2025.

Round-trip from

£98

One-way from

£53

Popular in

March

Cheapest in

July

Average price

£171
Southwest
  • Southwest
  • 15/11-19/11
  • Nonstop
  • 6h 00m total
  • San Diego to Austin
Southwest
  • Southwest
  • 9/12
  • 1 total stop
  • 5h 55m total
  • San Diego to Austin
Highest demand for flights based on searches. 9% potential increase in price (£15 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Average for round-trip flights in September 2025

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 12 9월 2025.

토 15/1107:25SAN - AUS
Nonstop2h 50mSouthwest
수 19/1119:55AUS - SAN
Nonstop3h 10mSouthwest
Deal found 11/9£98
금 10/1016:30SAN - AUS
Nonstop2h 45mSouthwest
화 14/1007:45AUS - SAN
Nonstop3h 00mSouthwest
Deal found 10/9£101
수 29/1014:10SAN - AUS
1 stop6h 15mSouthwest
화 4/1114:30AUS - SAN
1 stop5h 25mSouthwest
Deal found 11/9£105
토 13/1216:25SAN - AUS
Nonstop2h 45mSouthwest
화 16/1219:55AUS - SAN
Nonstop3h 10mSouthwest
Deal found 10/9£111
토 4/1007:35SAN - AUS
1 stop5h 10mSouthwest
수 8/1007:45AUS - SAN
Nonstop3h 00mSouthwest
Deal found 11/9£117
토 11/1006:55SAN - AUS
1 stop7h 55mSouthwest
토 18/1018:15AUS - SAN
1 stop4h 45mSouthwest
Deal found 11/9£120
수 8/1017:58SAN - AUS
Nonstop3h 09mAlaska Airlines
화 14/1006:00AUS - SAN
Nonstop3h 16mAlaska Airlines
Deal found 11/9£125
토 8/1117:10SAN - AUS
Nonstop3h 03mAlaska Airlines
화 11/1106:00AUS - SAN
Nonstop3h 14mAlaska Airlines
Deal found 11/9£126
일 9/1107:20SAN - AUS
Nonstop2h 50mSouthwest
토 15/1107:00AUS - SAN
Nonstop3h 10mSouthwest
Deal found 10/9£126

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 12 9월 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

토 15/11

07:25-12:15

Nonstop2h 50m

Austin Bergstrom

수 19/11

13:10-16:10

1 stop5h 00m

£106

San DiegoAustin

SAN - AUS

SANAUS

San Diego

목 19/2

17:30-22:29

Nonstop2h 59m

Austin Bergstrom

수 25/2

15:00-16:10

Nonstop3h 10m

£126

San DiegoAustin

SAN - AUS

SANAUS

San Diego

화 10/2

17:30-22:29

Nonstop2h 59m

Austin Bergstrom

목 19/2

06:15-07:25

Nonstop3h 10m

£126

San DiegoAustin

SAN - AUS

SANAUS

San Diego

화 17/2

17:30-22:29

Nonstop2h 59m

Austin Bergstrom

일 22/2

18:30-19:45

Nonstop3h 15m

£126

San DiegoAustin

SAN - AUS

SANAUS

San Diego

일 9/11

07:20-12:10

Nonstop2h 50m

Austin Bergstrom

토 15/11

07:00-08:10

Nonstop3h 10m

£126

San DiegoAustin

SAN - AUS

SANAUS

San Diego

화 28/10

11:37-00:14

1 stop10h 37m

Austin Bergstrom

화 4/11

14:59-16:13

Nonstop3h 14m

£132

San DiegoAustin

SAN - AUS

SANAUS

San Diego

토 25/10

07:35-14:45

1 stop5h 10m

Austin Bergstrom

토 25/10

17:40-21:20

1 stop5h 40m

£133

San DiegoAustin

SAN - AUS

SANAUS

San Diego

화 17/2

12:30-17:29

Nonstop2h 59m

Austin Bergstrom

목 26/2

13:35-20:42

1 stop9h 07m

£133

San DiegoAustin

SAN - AUS

SANAUS

San Diego

화 17/2

12:30-17:29

Nonstop2h 59m

Austin Bergstrom

금 20/2

13:55-20:06

1 stop8h 11m

£133

San DiegoAustin

SAN - AUS

SANAUS

San Diego

화 20/1

07:20-12:05

Nonstop2h 45m

£57

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 17 results
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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 29 August 2025.

The best time to book flights from San Diego to Austin is 52 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, February is the cheapest month in which you can book a flight from San Diego to Austin (average of £636). Flying from San Diego to Austin in July is currently the most expensive (average of £901). 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 12 9월 2025.

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?

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

    Southwest and Alaska Airlines can get you from San Diego to Austin in just under 2h 59m. Your travel time can differ by up to 2h 46m. The distance between San Diego and Austin is about 1162 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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 Frontier (85%), SkyWest Airlines (76%) and American Airlines (76%).

  • 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, February is the cheapest month in which you can book a flight from San Diego to Austin (average of £636). Flying from San Diego to Austin in July is currently the most expensive (average of £901). 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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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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