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Cheap flights from Austin to San Diego from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to San Diego departing on 3/1. 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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Multiple Airlines Logo
1:10 pm - 2:23 pmAUS-SAN
3h 13mnonstop
Multiple Airlines Logo
5:10 pm - 10:09 pmSAN-AUS
2h 59mnonstop
$117Multiple Airlines
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Sun, Dec 7 - Wed, Dec 10
Multiple Airlines Logo
12:42 pm - 1:55 pmAUS-SAN
3h 13mnonstop
Multiple Airlines Logo
2:17 pm - 7:19 pmSAN-AUS
3h 02mnonstop
$118Multiple Airlines
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Sun, Jan 11 - Wed, Jan 14
Frontier Logo
1:10 pm - 2:23 pmAUS-SAN
3h 13mnonstop
Frontier Logo
6:34 am - 12:14 amSAN-AUS
15h 40m1 stop
$119Frontier
Find Deal
Sun, Dec 14 - Mon, Dec 15
Frontier Logo
1:39 pm - 2:52 pmAUS-SAN
3h 13mnonstop
Frontier Logo
4:47 pm - 1:13 pmSAN-AUS
18h 26m1 stop
$122Frontier
Find Deal
Thu, Dec 11 - Sun, Dec 14
Frontier Logo
10:22 pm - 12:38 pmAUS-SAN
16h 16m1 stop
Frontier Logo
1:33 pm - 6:27 pmSAN-AUS
2h 54mnonstop
$123Frontier
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Sun, Dec 14 - Mon, Dec 22
Frontier Logo
6:55 am - 11:59 pmAUS-SAN
19h 04m1 stop
Frontier Logo
3:18 pm - 4:18 pmSAN-AUS
23h 00m1 stop
$124Frontier
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Thu, Dec 4 - Sun, Dec 7
Frontier Logo
10:22 pm - 12:38 pmAUS-SAN
16h 16m1 stop
Frontier Logo
3:18 pm - 4:18 pmSAN-AUS
23h 00m1 stop
$125Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
1:39 pm - 2:52 pmAUS-SAN
3h 13mnonstop
Multiple Airlines Logo
9:12 am - 2:16 pmSAN-AUS
3h 04mnonstop
$127Multiple Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 6
Alaska Airlines Logo
6:00 am - 7:30 amAUS-SAN
3h 30mnonstop
Alaska Airlines Logo
9:12 am - 2:16 pmSAN-AUS
3h 04mnonstop
$157Alaska Airlines
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Sat, Dec 13 - Tue, Dec 16
Alaska Airlines Logo
6:00 am - 7:32 amAUS-SAN
3h 32mnonstop
Alaska Airlines Logo
2:17 pm - 7:19 pmSAN-AUS
3h 02mnonstop
$167Alaska Airlines
Find Deal
Fri, Jan 16 - Tue, Jan 20

Frontier flights from Austin to San Diego

Our best Frontier deals on Austin to San Diego flight tickets
Frontier
Dec 14
AUS1:10 pmAustin Bergstrom
3h 13m
SAN2:23 pmSan Diego
Dec 15
SAN6:34 amSan Diego
15h 40m
1 stop
AUS12:14 amAustin Bergstrom
$119
Find similar
Frontier
Dec 11
AUS1:39 pmAustin Bergstrom
3h 13m
SAN2:52 pmSan Diego
Dec 14
SAN4:47 pmSan Diego
18h 26m
1 stop
AUS1:13 pmAustin Bergstrom
$122
Find similar
Frontier
Dec 14
AUS10:22 pmAustin Bergstrom
16h 16m
1 stop
SAN12:38 pmSan Diego
Dec 22
SAN1:33 pmSan Diego
2h 54m
AUS6:27 pmAustin Bergstrom
$123
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Alaska Airlines flights from Austin to San Diego

Our best Alaska Airlines deals on Austin to San Diego flight tickets
Alaska Airlines
Dec 13
AUS6:00 amAustin Bergstrom
3h 30m
SAN7:30 amSan Diego
Dec 16
SAN9:12 amSan Diego
3h 04m
AUS2:16 pmAustin Bergstrom
$157
Find similar
Alaska Airlines
Jan 16
AUS6:00 amAustin Bergstrom
3h 32m
SAN7:32 amSan Diego
Jan 20
SAN2:17 pmSan Diego
3h 02m
AUS7:19 pmAustin Bergstrom
$167
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Austin to San Diego 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 6, 2025.
Use the filters below to find and compare flights from Austin to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Sun 12/7

1:10 pm-2:23 pm

Nonstop3h 13m

San Diego

Wed 12/10

5:10 pm-10:09 pm

Nonstop2h 59m

$117

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Sun 1/11

12:42 pm-1:55 pm

Nonstop3h 13m

San Diego

Wed 1/14

2:17 pm-7:19 pm

Nonstop3h 02m

$118

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Sun 12/14

1:10 pm-2:23 pm

Nonstop3h 13m

San Diego

Mon 12/15

6:34 am-12:14 am

1 stop15h 40m

$119

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Thu 12/11

1:39 pm-2:52 pm

Nonstop3h 13m

San Diego

Sun 12/14

4:47 pm-1:13 pm

1 stop18h 26m

$122

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Sun 12/14

10:22 pm-12:38 pm

1 stop16h 16m

San Diego

Mon 12/22

1:33 pm-6:27 pm

Nonstop2h 54m

$123

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Thu 12/4

6:55 am-11:59 pm

1 stop19h 04m

San Diego

Sun 12/7

3:18 pm-4:18 pm

1 stop23h 00m

$124

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Thu 12/4

10:22 pm-12:38 pm

1 stop16h 16m

San Diego

Sun 12/7

3:18 pm-4:18 pm

1 stop23h 00m

$125

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Thu 12/4

1:39 pm-2:52 pm

Nonstop3h 13m

San Diego

Sat 12/6

9:12 am-2:16 pm

Nonstop3h 04m

$127

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Sat 12/13

6:00 am-7:30 am

Nonstop3h 30m

San Diego

Tue 12/16

9:12 am-2:16 pm

Nonstop3h 04m

$157

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Fri 1/16

6:00 am-7:32 am

Nonstop3h 32m

San Diego

Tue 1/20

2:17 pm-7:19 pm

Nonstop3h 02m

$167

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to San Diego from

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

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 San Diego?

If you are unable to visit San Diego during the month of August, then departing from Austin during the month September is also very affordable. Most momondo users find prices during this month for around $237.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Austin to San Diego is on a Friday. Travelers who choose to depart for San Diego on a Friday will often find tickets for as low as $275. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $427. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

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

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $218. Flights in the afternoon are often more expensive with an average ticket price of $372.

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

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

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $283 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Austin for as low as $242 on momondo.

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

There are 4 cabin classes available to choose from on Austin Bergstrom to San Diego 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 Austin to San Diego flights?

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

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

As of November 2025, prices for Austin to San Diego flights are approximately 31% cheaper when compared to flights at the same time last year.

When to book flights from Austin to San Diego

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

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

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

Best Price Found

$100

Fastest flight time

3h 06m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Austin in the past 72 hours is $100. The best round-trip flight deal from Austin to San Diego found on momondo in the last 72 hours is $191.
The fastest flight from Austin to San Diego takes 3h 06m
Direct flights go from Austin to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

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

    There are 1153.4 mi between Austin Bergstrom and San Diego. 3h 12m is a normal flight duration for this route.

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

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

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

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

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Austin to San Diego

Compare and see reviews for airlines that fly from Austin to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $71Free CancellationRating
6.3
8,114 reviews
Search Spirit Airlines flights
FrontierPriceFrom $95Free CancellationRating
5.8
3,116 reviews
Search Frontier flights
DeltaPriceFrom $119Free CancellationRating
7.9
8,004 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $127Free CancellationRating
7.8
2,804 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $183Free CancellationRating
8.0
11,243 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $185Free CancellationRating
8.0
4,240 reviews
Search Southwest flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights
American AirlinesPriceFrom $230Free CancellationRating
7.2
11,041 reviews
Search American Airlines flights

  • Alaska Airlines Flights From Austin to San Diego

    Across 14 Alaska Airlines flights from Austin to San Diego this week, the average price was $322, with the best Alaska Airlines deals starting from $183 round-trip. 11,246 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.

  • Southwest Flights From Austin to San Diego

    Southwest (8.0/10 from 4,241 reviews) operates around 30 flights from Austin to San Diego in any given week. The average Southwest airfare for this route is around $327, with deals from around $185 rare but found on momondo. Referenced prices are for round-trip Austin to San Diego flight searches in the last 72 hours.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Imperial Beach
La Mesa
Poway
Borrego Springs
San Ysidro
Lemon Grove
Alpine
Santee

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Austin to San Diego. momondo saves you time and could save you money on your trip.

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

Yes. All flights to San Diego from Austin on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Austin to San Diego flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to San Diego from Austin are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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