Cheap Flights from Austin to San Diego
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Flights from Austin to San Diego
Cheapest airlines flights from Austin to San Diego
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Find cheap flights from Austin to San Diego
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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Cheapest nonstop
AUS 19:532h 50mNonstopSAN 20:43Austin - San Diego | Wed, Aug 6 | Frontier Airlines
SAN 10:083h 6mNonstopAUS 15:14San Diego - Austin | Wed, Aug 13 | Frontier AirlinesUS$150 US$22233% OFF33% OFFUS$222 US$150 -
AUS 19:532h 52mNonstopSAN 20:45Austin - San Diego | Wed, Jun 25 | Frontier Airlines
SAN 10:112h 59mNonstopAUS 15:10San Diego - Austin | Wed, Jul 2 | Frontier AirlinesUS$160 US$22228% OFF28% OFFUS$222 US$160
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AUS 19:532h 50mNonstopSAN 20:43Austin - San Diego | Fri, Aug 8 | Frontier Airlines
SAN 10:083h 6mNonstopAUS 15:14San Diego - Austin | Wed, Aug 13 | Frontier AirlinesUS$160 US$22228% OFF28% OFFUS$222 US$160
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AUS 19:532h 50mNonstopSAN 20:43Austin - San Diego | Wed, Jul 30 | Frontier Airlines
SAN 10:083h 6mNonstopAUS 15:14San Diego - Austin | Wed, Aug 6 | Frontier AirlinesUS$17023% OFFUS$222 US$170
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AUS 19:532h 50mNonstopSAN 20:43Austin - San Diego | Sun, Jul 6 | Frontier Airlines
SAN 08:313h 6mNonstopAUS 13:37San Diego - Austin | Sun, Jul 13 | Frontier AirlinesUS$17023% OFFUS$222 US$170
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AUS 19:532h 52mNonstopSAN 20:45Austin - San Diego | Sun, Jun 22 | Frontier Airlines
SAN 08:292h 59mNonstopAUS 13:28San Diego - Austin | Sun, Jun 29 | Frontier AirlinesUS$17421% OFFUS$222 US$174
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AUS 19:532h 52mNonstopSAN 20:45Austin - San Diego | Fri, Jul 4 | Frontier Airlines
SAN 08:313h 6mNonstopAUS 13:37San Diego - Austin | Fri, Jul 11 | Frontier AirlinesUS$17720% OFFUS$222 US$177
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AUS 14:312h 58mNonstopSAN 15:29Austin - San Diego | Wed, Aug 6 | Alaska Airlines
SAN 10:083h 6mNonstopAUS 15:14San Diego - Austin | Wed, Aug 13 | Frontier AirlinesUS$17720% OFFUS$222 US$177 -
AUS 07:006h 10m1 stopsSAN 11:10Austin - San Diego | Tue, Aug 5 | Frontier Airlines
SAN 12:059h 15m1 stopsAUS 23:20San Diego - Austin | Tue, Aug 12 | Frontier AirlinesUS$15630% OFFUS$222 US$156
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AUS 19:532h 50mNonstopSAN 20:43Austin - San Diego | Wed, Aug 13 | Frontier Airlines
SAN 11:2110h 23m1 stopsAUS 23:44San Diego - Austin | Sun, Aug 17 | Frontier AirlinesUS$16028% OFFUS$222 US$160
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AUS 13:0017h 25m1 stopsSAN Invalid DateAustin - San Diego | Fri, Jun 20 | Normal Airline
SAN 15:006hNonstopAUS 16:00San Diego - Austin | Sun, Jun 22 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
AUS 19:532h 50mNonstopSAN 20:43Austin - San Diego | Mon, Jul 14 | Frontier AirlinesUS$61 US$10945% OFF45% OFFUS$109 US$61
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AUS 19:532h 50mNonstopSAN 20:43Austin - San Diego | Wed, Aug 6 | Frontier AirlinesUS$62 US$10944% OFF44% OFFUS$109 US$62
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AUS 19:532h 50mNonstopSAN 20:43Austin - San Diego | Wed, Aug 13 | Frontier AirlinesUS$62 US$10944% OFF44% OFFUS$109 US$62
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AUS 06:002h 59mNonstopSAN 06:59Austin - San Diego | Tue, Aug 5 | Alaska AirlinesUS$6441% OFFUS$109 US$64
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AUS 14:224h 36m1 stopsSAN 16:58Austin - San Diego | Fri, Aug 8 | Frontier AirlinesUS$7532% OFFUS$109 US$75
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AUS 13:536h 23m1 stopsSAN 18:16Austin - San Diego | Mon, Jun 23 | Frontier AirlinesUS$7631% OFFUS$109 US$76
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AUS 13:5424h 10m1 stopsSAN 12:04Austin - San Diego | Sun, Jul 6 | Frontier AirlinesUS$7927% OFFUS$109 US$79
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AUS 16:348h 32m1 stopsSAN 23:06Austin - San Diego | Fri, Jul 11 | Spirit AirlinesUS$8126% OFFUS$109 US$81 -
AUS 13:546h 26m1 stopsSAN 18:20Austin - San Diego | Mon, Jul 28 | Frontier AirlinesUS$8225% OFFUS$109 US$82
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AUS 16:348h 26m1 stopsSAN 23:00Austin - San Diego | Mon, Jul 14 | Spirit AirlinesUS$8720% OFFUS$109 US$87
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AUS 13:0017h 25m1 stopsSAN Invalid DateAustin - San Diego | Fri, Jun 20 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Austin to San Diego Flight Information
| Cheapest one-way flight price | $60 |
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| Cheapest round-trip ticket price | $149 |
| Off-season for travel | April |
| Peak season for travel | June |
| Flight distance | 1,856.08 km |
| Average flight time | 3 hours 17 minutes |
| Popular airline | American Airlines |
When is the cheapest time to book flights from Austin to San Diego?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from Austin (AUS) to San Diego (SAN) the cheapest?
Airlines adjust prices for flights from Austin to San Diego based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Austin (AUS) to San Diego (SAN) cost?
According to Trip.com's data, the lowest price is around $306. -
How long does it take to fly from Austin (AUS) to San Diego (SAN) and what is the distance?
It takes around 3 hours 17 minutes to fly from Austin (AUS) to San Diego (SAN). -
What are the most popular airlines that fly from Austin (AUS) to San Diego (SAN)?
Airlines with flights from Austin (AUS) to San Diego (SAN): Southwest Airlines, American Airlines, Hawaiian Airlines, Alaska Airlines and Frontier Airlines.
How to find a cheap flight from Austin to San Diego
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Austin to San Diego. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest Austin to San Diego ticket.
Tap "Date" on flight search bar to scan through the calender for Austin to San Diego airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Mon, Jul 14 at US$61 for one-way flights.
Compare cheap Austin to San Diego flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Austin to San Diego. The cheapest airline operating is Frontier Airlines.
Set up a Price Alert
By setting up a Price Alert for your Austin to San Diego route, you can easily track the price of your airline tickets from Austin to San Diego without manually checking every day.
Don't miss cheap Austin to San Diego flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Austin to San Diego to get exclusive deals for you.
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