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Cheap flights from San Diego to Austin from $54

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 3/2. 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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Find the cheapest flights from San Diego to Austin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:33 pm - 6:27 pm
SAN
-
AUS
2h 54mnonstop
Frontier Logo
12:42 pm - 1:55 pm
AUS
-
SAN
3h 13mnonstop
$112Frontier
Fri, Feb 13 - Fri, Feb 20
Frontier Logo
9:16 am - 6:14 pm
SAN
-
AUS
6h 58m1 stop
Frontier Logo
12:38 pm - 1:57 pm
AUS
-
SAN
3h 19mnonstop
$113Frontier
Thu, Jan 15 - Fri, Jan 23
Frontier Logo
4:56 pm - 11:21 pm
SAN
-
AUS
28h 25m1 stop
Frontier Logo
6:12 pm - 7:31 pm
AUS
-
SAN
3h 19mnonstop
$116Frontier
Fri, Jan 16 - Mon, Jan 19
Frontier Logo
4:22 pm - 12:14 am
SAN
-
AUS
5h 52m1 stop
Frontier Logo
12:42 pm - 1:55 pm
AUS
-
SAN
3h 13mnonstop
$118Frontier
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
6:25 am - 12:14 am
SAN
-
AUS
15h 49m1 stop
Frontier Logo
6:45 am - 10:46 pm
AUS
-
SAN
18h 01m1 stop
$119Frontier
Wed, Feb 11 - Tue, Feb 17
Frontier Logo
7:00 am - 10:56 pm
SAN
-
AUS
13h 56m1 stop
Frontier Logo
10:55 am - 11:07 pm
AUS
-
SAN
14h 12m1 stop
$122Frontier
Tue, Jan 6 - Tue, Jan 13
Frontier Logo
9:16 am - 2:08 pm
SAN
-
AUS
2h 52mnonstop
Frontier Logo
6:12 pm - 7:31 pm
AUS
-
SAN
3h 19mnonstop
$123Frontier
Fri, Jan 16 - Mon, Jan 19
Frontier Logo
9:16 am - 2:08 pm
SAN
-
AUS
2h 52mnonstop
Frontier Logo
12:38 pm - 1:57 pm
AUS
-
SAN
3h 19mnonstop
$124Frontier
Fri, Jan 16 - Fri, Jan 23
Frontier Logo
11:49 am - 7:30 pm
SAN
-
AUS
5h 41m1 stop
Frontier Logo
6:45 am - 10:46 pm
AUS
-
SAN
18h 01m1 stop
$125Frontier
Mon, Feb 9 - Wed, Feb 18
Frontier Logo
6:30 am - 7:27 pm
SAN
-
AUS
10h 57m1 stop
Frontier Logo
8:22 pm - 12:08 am
AUS
-
SAN
5h 46m1 stop
$128Frontier
Fri, Jan 23 - Mon, Jan 26

Alaska Airlines flights from San Diego to Austin

Our best Alaska Airlines deals on San Diego to Austin flight tickets
Alaska Airlines
Jan 6
SAN9:10 amSan Diego
3h 06m
AUS2:16 pmAustin Bergstrom
Jan 13
AUS3:39 pmAustin Bergstrom
3h 27m
SAN5:06 pmSan Diego
$176
Find similar
Alaska Airlines
Jan 7
SAN7:48 amSan Diego
3h 02m
AUS12:50 pmAustin Bergstrom
Jan 10
AUS6:00 amAustin Bergstrom
3h 32m
SAN7:32 amSan Diego
$177
Find similar

Frontier flights from San Diego to Austin

Our best Frontier deals on San Diego to Austin flight tickets
Frontier
Feb 13
SAN1:33 pmSan Diego
2h 54m
AUS6:27 pmAustin Bergstrom
Feb 20
AUS12:42 pmAustin Bergstrom
3h 13m
SAN1:55 pmSan Diego
$112
Find similar
Frontier
Jan 15
SAN9:16 amSan Diego
6h 58m
1 stop
AUS6:14 pmAustin Bergstrom
Jan 23
AUS12:38 pmAustin Bergstrom
3h 19m
SAN1:57 pmSan Diego
$113
Find similar
Frontier
Jan 16
SAN4:56 pmSan Diego
28h 25m
1 stop
AUS11:21 pmAustin Bergstrom
Jan 19
AUS6:12 pmAustin Bergstrom
3h 19m
SAN7:31 pmSan Diego
$116
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 December 8, 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

Fri 2/13

1:33 pm-6:27 pm

Nonstop2h 54m

Austin Bergstrom

Fri 2/20

12:42 pm-1:55 pm

Nonstop3h 13m

$112

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 1/15

9:16 am-6:14 pm

1 stop6h 58m

Austin Bergstrom

Fri 1/23

12:38 pm-1:57 pm

Nonstop3h 19m

$113

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 1/16

4:56 pm-11:21 pm

1 stop28h 25m

Austin Bergstrom

Mon 1/19

6:12 pm-7:31 pm

Nonstop3h 19m

$116

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 2/27

4:22 pm-12:14 am

1 stop5h 52m

Austin Bergstrom

Mon 3/2

12:42 pm-1:55 pm

Nonstop3h 13m

$118

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Wed 2/11

6:25 am-12:14 am

1 stop15h 49m

Austin Bergstrom

Tue 2/17

6:45 am-10:46 pm

1 stop18h 01m

$119

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Tue 1/6

7:00 am-10:56 pm

1 stop13h 56m

Austin Bergstrom

Tue 1/13

10:55 am-11:07 pm

1 stop14h 12m

$122

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 1/16

9:16 am-2:08 pm

Nonstop2h 52m

Austin Bergstrom

Mon 1/19

6:12 pm-7:31 pm

Nonstop3h 19m

$123

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 1/16

9:16 am-2:08 pm

Nonstop2h 52m

Austin Bergstrom

Fri 1/23

12:38 pm-1:57 pm

Nonstop3h 19m

$124

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Mon 2/9

11:49 am-7:30 pm

1 stop5h 41m

Austin Bergstrom

Wed 2/18

6:45 am-10:46 pm

1 stop18h 01m

$125

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 1/23

6:30 am-7:27 pm

1 stop10h 57m

Austin Bergstrom

Mon 1/26

8:22 pm-12:08 am

1 stop5h 46m

$128

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 $267. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to Austin for around $348.

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 $263. 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 $322. 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 $274 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 $233 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 December 2025, prices for San Diego to Austin flights are approximately 4% 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

$121

Fastest flight time

2h 40m

Direct flights

Every day

Airports in Austin

1 airport
The best one-way flight to Austin from San Diego in the past 72 hours is $121. The best round-trip flight deal from San Diego to Austin found on momondo in the last 72 hours is $195.
The fastest flight from San Diego to Austin takes 2h 40m
Direct flights go from San Diego to Austin every day.
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
FrontierPriceFrom $79Free CancellationRating
5.8
3,087 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $82Free CancellationRating
6.3
8,168 reviews
Search Spirit Airlines flights
DeltaPriceFrom $119Free CancellationRating
7.9
8,011 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $123Free CancellationRating
7.8
2,818 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $148Free CancellationRating
7.4
9,079 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $183Free CancellationRating
8.0
11,416 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $187Free CancellationRating
8.0
4,252 reviews
Search Southwest flights
American AirlinesPriceFrom $227Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights

  • Alaska Airlines Flights From San Diego to Austin

    Alaska Airlines flight deals from San Diego to Austin start from $183 round-trip. Over the 12 Alaska Airlines flights for this route in a normal week, average airfare is usually $328 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From San Diego to Austin

    Southwest (8.0/10 from 4,252 reviews) operates around 38 flights from San Diego to Austin in any given week. The average Southwest airfare for this route is around $307, with deals from around $187 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
Horseshoe Bay
Dripping Springs
Cedar Park
Pflugerville
Seguin
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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