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Cheap flights from San Diego to Austin from $75

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Austin departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Multiple Airlines Logo
5:10 pm - 10:09 pmSAN-AUS
2h 59mnonstop
Multiple Airlines Logo
5:13 pm - 6:26 pmAUS-SAN
3h 13mnonstop
$132Multiple Airlines
Find Deal
Sat, Dec 13 - Mon, Jan 5
Frontier Logo
8:10 pm - 1:13 pmSAN-AUS
15h 03m1 stop
Frontier Logo
1:10 pm - 2:23 pmAUS-SAN
3h 13mnonstop
$133Frontier
Find Deal
Thu, Dec 11 - Sun, Dec 14
Frontier Logo
6:34 am - 11:12 pmSAN-AUS
14h 38m1 stop
Frontier Logo
1:10 pm - 2:23 pmAUS-SAN
3h 13mnonstop
$134Frontier
Find Deal
Wed, Dec 10 - Sun, Dec 14
Frontier Logo
6:34 am - 12:14 amSAN-AUS
15h 40m1 stop
Frontier Logo
7:22 pm - 9:58 pmAUS-SAN
28h 36m1 stop
$135Frontier
Find Deal
Sat, Dec 13 - Mon, Jan 5
Frontier Logo
6:34 am - 12:14 amSAN-AUS
15h 40m1 stop
Frontier Logo
1:10 pm - 2:23 pmAUS-SAN
3h 13mnonstop
$136Frontier
Find Deal
Fri, Dec 12 - Sun, Dec 14
Frontier Logo
6:34 am - 12:14 amSAN-AUS
15h 40m1 stop
Frontier Logo
6:55 am - 10:46 pmAUS-SAN
17h 51m1 stop
$138Frontier
Find Deal
Sat, Dec 13 - Tue, Dec 16
Frontier Logo
6:34 am - 12:14 amSAN-AUS
15h 40m1 stop
Frontier Logo
10:22 pm - 12:38 pmAUS-SAN
16h 16m1 stop
$139Frontier
Find Deal
Sat, Dec 13 - Sun, Dec 14
Multiple Airlines Logo
9:46 am - 2:38 pmSAN-AUS
2h 52mnonstop
Multiple Airlines Logo
2:15 pm - 3:47 pmAUS-SAN
3h 32mnonstop
$142Multiple Airlines
Find Deal
Mon, Feb 9 - Thu, Feb 19
Frontier Logo
10:01 pm - 10:40 pmSAN-AUS
22h 39m2 stops
Frontier Logo
12:38 pm - 1:57 pmAUS-SAN
3h 19mnonstop
$145Frontier
Find Deal
Mon, Feb 2 - Fri, Feb 6
Frontier Logo
4:33 pm - 9:27 pmSAN-AUS
2h 54mnonstop
Frontier Logo
1:10 pm - 2:23 pmAUS-SAN
3h 13mnonstop
$146Frontier
Find Deal
Thu, Dec 11 - Sun, Dec 14

Frontier flights from San Diego to Austin

Our best Frontier deals on San Diego to Austin flight tickets
Frontier
Dec 11
SAN8:10 pmSan Diego
15h 03m
1 stop
AUS1:13 pmAustin Bergstrom
Dec 14
AUS1:10 pmAustin Bergstrom
3h 13m
SAN2:23 pmSan Diego
$133
Find similar
Frontier
Dec 10
SAN6:34 amSan Diego
14h 38m
1 stop
AUS11:12 pmAustin Bergstrom
Dec 14
AUS1:10 pmAustin Bergstrom
3h 13m
SAN2:23 pmSan Diego
$134
Find similar
Frontier
Dec 13
SAN6:34 amSan Diego
15h 40m
1 stop
AUS12:14 amAustin Bergstrom
Jan 5
AUS7:22 pmAustin Bergstrom
28h 36m
1 stop
SAN9:58 pmSan Diego
$135
Find similar

Alaska Airlines flights from San Diego to Austin

Our best Alaska Airlines deals on San Diego to Austin flight tickets
Alaska Airlines
Jan 16
SAN2:17 pmSan Diego
3h 02m
AUS7:19 pmAustin Bergstrom
Jan 18
AUS7:59 pmAustin Bergstrom
3h 30m
SAN9:29 pmSan Diego
$197
Find similar
Alaska Airlines
Dec 8
SAN5:10 pmSan Diego
2h 59m
AUS10:09 pmAustin Bergstrom
Dec 16
AUS6:00 amAustin Bergstrom
3h 30m
SAN7:30 amSan Diego
$257
Find similar
Alaska Airlines
Dec 6
SAN9:12 amSan Diego
3h 04m
AUS2:16 pmAustin Bergstrom
Dec 12
AUS6:00 amAustin Bergstrom
3h 30m
SAN7:30 amSan Diego
$267
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 24, 2025.
Use the filters below to find and compare flights from San Diego to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 12/13

5:10 pm-10:09 pm

Nonstop2h 59m

Austin Bergstrom

Mon 1/5

5:13 pm-6:26 pm

Nonstop3h 13m

$132

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 12/11

8:10 pm-1:13 pm

1 stop15h 03m

Austin Bergstrom

Sun 12/14

1:10 pm-2:23 pm

Nonstop3h 13m

$133

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Wed 12/10

6:34 am-11:12 pm

1 stop14h 38m

Austin Bergstrom

Sun 12/14

1:10 pm-2:23 pm

Nonstop3h 13m

$134

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 12/13

6:34 am-12:14 am

1 stop15h 40m

Austin Bergstrom

Mon 1/5

7:22 pm-9:58 pm

1 stop28h 36m

$135

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 12/12

6:34 am-12:14 am

1 stop15h 40m

Austin Bergstrom

Sun 12/14

1:10 pm-2:23 pm

Nonstop3h 13m

$136

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 12/13

6:34 am-12:14 am

1 stop15h 40m

Austin Bergstrom

Tue 12/16

6:55 am-10:46 pm

1 stop17h 51m

$138

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Sat 12/13

6:34 am-12:14 am

1 stop15h 40m

Austin Bergstrom

Sun 12/14

10:22 pm-12:38 pm

1 stop16h 16m

$139

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Mon 2/9

9:46 am-2:38 pm

Nonstop2h 52m

Austin Bergstrom

Thu 2/19

2:15 pm-3:47 pm

Nonstop3h 32m

$142

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Mon 2/2

10:01 pm-10:40 pm

2 stops22h 39m

Austin Bergstrom

Fri 2/6

12:38 pm-1:57 pm

Nonstop3h 19m

$145

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 12/11

4:33 pm-9:27 pm

Nonstop2h 54m

Austin Bergstrom

Sun 12/14

1:10 pm-2:23 pm

Nonstop3h 13m

$146

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Austin from

How to get the cheapest flight ticket from San Diego to Austin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Austin?

The cheapest month to fly to Austin from San Diego is in July. Flight prices, which tend to average around $225, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in July, then September is your next best option. Flight prices from San Diego to Austin during September average around $225.

What is the cheapest day to depart on your flight to Austin?

The cheapest day to depart on your flight to Austin is on a Friday when prices can be found for as low as $276. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to Austin for around $368.

What is the cheapest time of day to depart on your flight to Austin?

At noon is the cheapest time of day to fly from San Diego to Austin when you can find flight prices for as low as $273. Flying to Austin at noon is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly in the morning, with an average ticket price of $329. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest San Diego to Austin Bergstrom flight route?

Fly from San Diego to Austin Bergstrom for the best San Diego - Austin Bergstrom flight prices

How far in advance should I book a flight to Austin?

You are more likely to see cheaper flights to Austin from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $280 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from San Diego for as low as $236 on momondo.

What cabin class options are available on San Diego to Austin Bergstrom flights?

There are 4 cabin classes available to choose from on San Diego to Austin Bergstrom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Diego to Austin flights?

No. A direct flight is the cheapest option for a flight between San Diego to Austin.

How have San Diego to Austin flight prices changed over time?

As of November 2025, prices for San Diego to Austin flights are approximately 51% cheaper when compared to flights at the same time last year.

When to book flights from San Diego to Austin

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Austin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to Austin (SAN to AUS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Austin

Best Price Found

$98

Fastest flight time

2h 45m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Austin

1 airport
The best one-way flight to Austin from San Diego in the past 72 hours is $98. The best round-trip flight deal from San Diego to Austin found on momondo in the last 72 hours is $197.
The fastest flight from San Diego to Austin takes 2h 45m
Direct flights go from San Diego to Austin on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Frontier.
There is 1 airport near Austin: Austin Bergstrom (AUS)
Search flight deals

  • How far is San Diego to Austin Bergstrom by plane?

    Austin Bergstrom is 1153.4 mi away from San Diego. In terms of flight time, this usually takes a little over 2h 52m.

  • When did momondo last update prices for flights from San Diego Airport to Austin Bergstrom Airport?

    Prices for flights from San Diego Airport to Austin Bergstrom Airport refresh daily.

  • How many operators does momondo search for flights from San Diego Airport to Austin Bergstrom Airport?

  • How old do you have to be to fly from San Diego Airport to Austin Bergstrom Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Austin Bergstrom Airport.

  • What documentation or ID do you need to fly to Austin Bergstrom Airport?

    The necessary travel and health documents for your Austin Bergstrom Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Diego to Austin?

  • What is the most popular airline from San Diego to Austin?

Best airlines flying from San Diego to Austin

Compare and see reviews for airlines that fly from San Diego to Austin with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $82Free CancellationRating
6.3
8,159 reviews
Search Spirit Airlines flights
FrontierPriceFrom $84Free CancellationRating
5.8
3,097 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $123Free CancellationRating
7.8
2,813 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $148Free CancellationRating
7.4
9,039 reviews
Search United Airlines flights
SouthwestPriceFrom $187Free CancellationRating
8.0
4,252 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $200Free CancellationRating
8.0
11,340 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $225Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
7,993 reviews
Search Delta flights

  • Southwest Flights From San Diego to Austin

    Southwest flight deals from San Diego to Austin start from $187 round-trip. Over the 18 Southwest flights for this route in a normal week, average airfare is usually $310 round-trip - but some users have found much cheaper deals with momondo.

  • Alaska Airlines Flights From San Diego to Austin

    Alaska Airlines (8.0/10 from 11,340 reviews) operates around 12 flights from San Diego to Austin in any given week. The average Alaska Airlines airfare for this route is around $325, with deals from around $200 rare but found on momondo. Referenced prices are for round-trip San Diego to Austin flight searches in the last 72 hours.

Traveling to a place near Austin?

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

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Austin?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Diego to Austin. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San Diego to Austin with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Austin from San Diego with this policy.

How can momondo help me find flights from San Diego to Austin?

momondo helps you find the best flight between San Diego and Austin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Diego to Austin right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Diego to Austin flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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