Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Austin to San Diego from $73

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 12/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Austin to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:45 am - 8:01 amAUS-SAN
27h 16m1 stop
Frontier Logo
4:33 pm - 9:27 pmSAN-AUS
2h 54mnonstop
$115Frontier
Find Deal
Thu, Nov 27 - Sun, Dec 7
Frontier Logo
6:45 am - 10:46 pmAUS-SAN
18h 01m1 stop
Frontier Logo
1:33 pm - 6:27 pmSAN-AUS
2h 54mnonstop
$116Frontier
Find Deal
Tue, Dec 2 - Mon, Dec 22
Frontier Logo
5:13 pm - 6:26 pmAUS-SAN
3h 13mnonstop
Frontier Logo
1:06 pm - 4:18 pmSAN-AUS
25h 12m1 stop
$117Frontier
Find Deal
Mon, Dec 29 - Sun, Jan 4
Frontier Logo
5:05 pm - 6:17 pmAUS-SAN
3h 12mnonstop
Frontier Logo
4:12 pm - 9:21 pmSAN-AUS
3h 09mnonstop
$119Frontier
Find Deal
Fri, Nov 21 - Sat, Nov 29
Frontier Logo
4:43 pm - 5:55 pmAUS-SAN
3h 12mnonstop
Frontier Logo
4:12 pm - 9:21 pmSAN-AUS
3h 09mnonstop
$120Frontier
Find Deal
Sat, Nov 22 - Sat, Nov 29
Frontier Logo
2:44 pm - 7:15 pmAUS-SAN
6h 31m1 stop
Frontier Logo
10:57 am - 10:13 amSAN-AUS
21h 16m1 stop
$123Frontier
Find Deal
Mon, Dec 22 - Wed, Dec 24
Frontier Logo
6:55 am - 11:59 pmAUS-SAN
19h 04m1 stop
Frontier Logo
6:34 am - 12:14 amSAN-AUS
15h 40m1 stop
$124Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
2:56 pm - 4:22 pmAUS-SAN
3h 26mnonstop
Multiple Airlines Logo
1:33 pm - 6:27 pmSAN-AUS
2h 54mnonstop
$125Multiple Airlines
Find Deal
Wed, Dec 17 - Sat, Dec 27
Frontier Logo
10:22 pm - 12:38 pmAUS-SAN
16h 16m1 stop
Frontier Logo
4:47 pm - 12:14 amSAN-AUS
29h 27m1 stop
$126Frontier
Find Deal
Thu, Dec 11 - Thu, Dec 18
Frontier Logo
6:45 am - 10:46 pmAUS-SAN
18h 01m1 stop
Frontier Logo
8:10 pm - 1:13 pmSAN-AUS
15h 03m1 stop
$127Frontier
Find Deal
Tue, Dec 2 - Thu, Dec 4

Frontier flights from Austin to San Diego

Our best Frontier deals on Austin to San Diego flight tickets
Frontier
Nov 27
AUS6:45 amAustin Bergstrom
27h 16m
1 stop
SAN8:01 amSan Diego
Dec 7
SAN4:33 pmSan Diego
2h 54m
AUS9:27 pmAustin Bergstrom
$115
Find similar
Frontier
Dec 2
AUS6:45 amAustin Bergstrom
18h 01m
1 stop
SAN10:46 pmSan Diego
Dec 22
SAN1:33 pmSan Diego
2h 54m
AUS6:27 pmAustin Bergstrom
$116
Find similar
Frontier
Dec 29
AUS5:13 pmAustin Bergstrom
3h 13m
SAN6:26 pmSan Diego
Jan 4
SAN1:06 pmSan Diego
25h 12m
1 stop
AUS4:18 pmAustin Bergstrom
$117
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 13, 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

Thu 11/27

6:45 am-8:01 am

1 stop27h 16m

San Diego

Sun 12/7

4:33 pm-9:27 pm

Nonstop2h 54m

$115

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Tue 12/2

6:45 am-10:46 pm

1 stop18h 01m

San Diego

Mon 12/22

1:33 pm-6:27 pm

Nonstop2h 54m

$116

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Mon 12/29

5:13 pm-6:26 pm

Nonstop3h 13m

San Diego

Sun 1/4

1:06 pm-4:18 pm

1 stop25h 12m

$117

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Fri 11/21

5:05 pm-6:17 pm

Nonstop3h 12m

San Diego

Sat 11/29

4:12 pm-9:21 pm

Nonstop3h 09m

$119

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Sat 11/22

4:43 pm-5:55 pm

Nonstop3h 12m

San Diego

Sat 11/29

4:12 pm-9:21 pm

Nonstop3h 09m

$120

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Mon 12/22

2:44 pm-7:15 pm

1 stop6h 31m

San Diego

Wed 12/24

10:57 am-10:13 am

1 stop21h 16m

$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

6:34 am-12:14 am

1 stop15h 40m

$124

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Wed 12/17

2:56 pm-4:22 pm

Nonstop3h 26m

San Diego

Sat 12/27

1:33 pm-6:27 pm

Nonstop2h 54m

$125

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Thu 12/11

10:22 pm-12:38 pm

1 stop16h 16m

San Diego

Thu 12/18

4:47 pm-12:14 am

1 stop29h 27m

$126

AustinSan Diego

AUS - SAN

AUSSAN

Austin Bergstrom

Tue 12/2

6:45 am-10:46 pm

1 stop18h 01m

San Diego

Thu 12/4

8:10 pm-1:13 pm

1 stop15h 03m

$127

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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 October, then departing from Austin during the month August is also very affordable. Most momondo users find prices during this month for around $231.

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 $284 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 $228 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 26% 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 10m

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 10m
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
8,139 reviews
Search Spirit Airlines flights
FrontierPriceFrom $95Free CancellationRating
5.8
3,114 reviews
Search Frontier flights
DeltaPriceFrom $119Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $127Free CancellationRating
7.8
2,809 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $183Free CancellationRating
8.0
11,281 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $185Free CancellationRating
8.0
4,236 reviews
Search Southwest flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
American AirlinesPriceFrom $230Free CancellationRating
7.2
11,050 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. 11,281 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 4,236 reviews) operates around 29 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 12/13
Sat 12/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States