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Cheap flights from San Diego to Austin from $80

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 10/14. 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

Frontier Logo
7:15 am - 10:00 pmSAN-AUS
12h 45m1 stop
Frontier Logo
12:39 pm - 1:36 pmAUS-SAN
2h 57mnonstop
$126Frontier
Find Deal
Sat, Oct 4 - Mon, Oct 6
Frontier Logo
9:03 pm - 8:28 pmSAN-AUS
21h 25m1 stop
Frontier Logo
12:39 pm - 1:36 pmAUS-SAN
2h 57mnonstop
$129Frontier
Find Deal
Thu, Oct 2 - Mon, Oct 6
Frontier Logo
6:41 am - 3:53 pmSAN-AUS
7h 12m1 stop
Frontier Logo
1:40 pm - 2:38 pmAUS-SAN
2h 58mnonstop
$130Frontier
Find Deal
Thu, Oct 9 - Mon, Oct 13
Frontier Logo
4:48 pm - 9:49 pmSAN-AUS
3h 01mnonstop
Frontier Logo
9:23 pm - 11:09 amAUS-SAN
15h 46m1 stop
$131Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
Frontier Logo
1:20 pm - 6:17 pmSAN-AUS
2h 57mnonstop
Frontier Logo
2:08 pm - 3:14 pmAUS-SAN
3h 06mnonstop
$132Frontier
Find Deal
Thu, Oct 30 - Mon, Nov 3
Logo
1:35 pm - 10:09 pmSAN-AUS
6h 34m1 stop
Logo
12:39 pm - 1:36 pmAUS-SAN
2h 57mnonstop
$139
Find Deal
Fri, Oct 3 - Sun, Oct 5
Logo
1:35 pm - 10:09 pmSAN-AUS
6h 34m1 stop
Logo
12:39 pm - 1:36 pmAUS-SAN
2h 57mnonstop
$140
Find Deal
Fri, Oct 3 - Sun, Oct 5
Southwest Logo
6:40 pm - 11:30 pmSAN-AUS
2h 50mnonstop
Southwest Logo
9:15 pm - 10:25 pmAUS-SAN
3h 10mnonstop
$161Southwest
Find Deal
Thu, Oct 30 - Thu, Nov 6
American Airlines Logo
4:20 pm - 11:55 pmSAN-AUS
5h 35m1 stop
American Airlines Logo
2:42 pm - 6:24 pmAUS-SAN
5h 42m1 stop
$177American Airlines
Find Deal
Thu, Oct 30 - Mon, Nov 3
Southwest Logo
9:25 am - 2:20 pmSAN-AUS
2h 55mnonstop
Southwest Logo
6:10 am - 9:05 amAUS-SAN
4h 55m1 stop
$182Southwest
Find Deal
Tue, Oct 14 - Tue, Oct 21

Frontier flights from San Diego to Austin

Our best Frontier deals on San Diego to Austin flight tickets
Frontier
Oct 4
SAN7:15 amSan Diego
12h 45m
1 stop
AUS10:00 pmAustin Bergstrom
Oct 6
AUS12:39 pmAustin Bergstrom
2h 57m
SAN1:36 pmSan Diego
$126
Find similar
Frontier
Oct 2
SAN9:03 pmSan Diego
21h 25m
1 stop
AUS8:28 pmAustin Bergstrom
Oct 6
AUS12:39 pmAustin Bergstrom
2h 57m
SAN1:36 pmSan Diego
$129
Find similar
Frontier
Oct 9
SAN6:41 amSan Diego
7h 12m
1 stop
AUS3:53 pmAustin Bergstrom
Oct 13
AUS1:40 pmAustin Bergstrom
2h 58m
SAN2:38 pmSan Diego
$130
Find similar

Southwest flights from San Diego to Austin

Our best Southwest deals on San Diego to Austin flight tickets
Southwest
Oct 30
SAN6:40 pmSan Diego
2h 50m
AUS11:30 pmAustin Bergstrom
Nov 6
AUS9:15 pmAustin Bergstrom
3h 10m
SAN10:25 pmSan Diego
$161
Find similar
Southwest
Oct 14
SAN9:25 amSan Diego
2h 55m
AUS2:20 pmAustin Bergstrom
Oct 21
AUS6:10 amAustin Bergstrom
4h 55m
1 stop
SAN9:05 amSan Diego
$182
Find similar
Southwest
Oct 8
SAN3:00 pmSan Diego
5h 30m
1 stop
AUS10:30 pmAustin Bergstrom
Oct 15
AUS7:45 amAustin Bergstrom
3h 00m
SAN8:45 amSan Diego
$187
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 September 15, 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 10/4

7:15 am-10:00 pm

1 stop12h 45m

Austin Bergstrom

Mon 10/6

12:39 pm-1:36 pm

Nonstop2h 57m

$126

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 10/2

9:03 pm-8:28 pm

1 stop21h 25m

Austin Bergstrom

Mon 10/6

12:39 pm-1:36 pm

Nonstop2h 57m

$129

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 10/9

6:41 am-3:53 pm

1 stop7h 12m

Austin Bergstrom

Mon 10/13

1:40 pm-2:38 pm

Nonstop2h 58m

$130

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 10/3

4:48 pm-9:49 pm

Nonstop3h 01m

Austin Bergstrom

Sun 10/5

9:23 pm-11:09 am

1 stop15h 46m

$131

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 10/30

1:20 pm-6:17 pm

Nonstop2h 57m

Austin Bergstrom

Mon 11/3

2:08 pm-3:14 pm

Nonstop3h 06m

$132

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 10/3

1:35 pm-10:09 pm

1 stop6h 34m

Austin Bergstrom

Sun 10/5

12:39 pm-1:36 pm

Nonstop2h 57m

$139

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Fri 10/3

1:35 pm-10:09 pm

1 stop6h 34m

Austin Bergstrom

Sun 10/5

12:39 pm-1:36 pm

Nonstop2h 57m

$140

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 10/30

6:40 pm-11:30 pm

Nonstop2h 50m

Austin Bergstrom

Thu 11/6

9:15 pm-10:25 pm

Nonstop3h 10m

$161

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Thu 10/30

4:20 pm-11:55 pm

1 stop5h 35m

Austin Bergstrom

Mon 11/3

2:42 pm-6:24 pm

1 stop5h 42m

$177

San DiegoAustin

SAN - AUS

SANAUS

San Diego

Tue 10/14

9:25 am-2:20 pm

Nonstop2h 55m

Austin Bergstrom

Tue 10/21

6:10 am-9:05 am

1 stop4h 55m

$182

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 August is your next best option. Flight prices from San Diego to Austin during August average around $237.

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 $289. 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 $369.

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

In the afternoon is the cheapest time of day to fly from San Diego to Austin when you can find flight prices for as low as $294. Flying to Austin in the afternoon 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 $336. 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 $287 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 $252 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 September 2025, prices for San Diego to Austin flights are approximately 23% 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

$118

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 $118. The best round-trip flight deal from San Diego to Austin found on momondo in the last 72 hours is $155.
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. There are no airlines offering direct flights.
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 50m.

  • 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
8,015 reviews
Search Spirit Airlines flights
FrontierPriceFrom $87Free CancellationRating
5.8
3,172 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $143Free CancellationRating
7.8
2,723 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $148Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $187Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $193Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $216Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
7,954 reviews
Search Delta flights

  • Alaska Airlines Flights From San Diego to Austin

    Alaska Airlines flight deals from San Diego to Austin start from $187 round-trip. Over the 14 Alaska Airlines flights for this route in a normal week, average airfare is usually $314 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From San Diego to Austin

    Southwest (8.0/10 from 4,242 reviews) operates around 26 flights from San Diego to Austin in any given week. The average Southwest airfare for this route is around $312, with deals from around $193 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
San Marcos
Wimberley
Round Rock
Georgetown
Canyon Lake
Marble Falls
Cedar Park
Horseshoe Bay
Dripping Springs
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.

An easier way to manage your Austin trip

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