Cheap flight from Austin to San Diego from $75
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Flights from Austin to San Diego
Find cheap 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.
Cheap flight deals 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 7:53 PM2h 50mNonstopSAN 8:43 PMAustin - San Diego | Fri, Jul 18 | Frontier Airlines
SAN 8:31 AM3h 6mNonstopAUS 1:37 PMSan Diego - Austin | Mon, Jul 21 | Frontier Airlines$159 $26841% OFF41% OFF$268 $159 -
AUS 7:53 PM2h 50mNonstopSAN 8:43 PMAustin - San Diego | Sun, Jul 6 | Frontier Airlines
SAN 8:31 AM3h 6mNonstopAUS 1:37 PMSan Diego - Austin | Sun, Jul 13 | Frontier Airlines$170 $26837% OFF37% OFF$268 $170
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AUS 7:53 PM2h 52mNonstopSAN 8:45 PMAustin - San Diego | Fri, Jul 4 | Frontier Airlines
SAN 10:08 AM3h 6mNonstopAUS 3:14 PMSan Diego - Austin | Wed, Jul 9 | Frontier Airlines$171 $26836% OFF36% OFF$268 $171
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AUS 7:53 PM2h 52mNonstopSAN 8:45 PMAustin - San Diego | Sun, Jun 22 | Frontier Airlines
SAN 8:29 AM2h 59mNonstopAUS 1:28 PMSan Diego - Austin | Sun, Jun 29 | Frontier Airlines$17435% OFF$268 $174
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AUS 7:53 PM2h 52mNonstopSAN 8:45 PMAustin - San Diego | Sun, Jun 15 | Frontier Airlines
SAN 8:29 AM2h 59mNonstopAUS 1:28 PMSan Diego - Austin | Mon, Jun 23 | Frontier Airlines$17634% OFF$268 $176
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AUS 7:53 PM2h 52mNonstopSAN 8:45 PMAustin - San Diego | Fri, Jun 13 | Frontier Airlines
SAN 8:29 AM2h 59mNonstopAUS 1:28 PMSan Diego - Austin | Mon, Jun 16 | Frontier Airlines$22018% OFF$268 $220
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AUS 1:53 PM6h 23m1 stopsSAN 6:16 PMAustin - San Diego | Mon, Jun 9 | Frontier Airlines
SAN 12:52 PM22h 6m1 stopsAUS 12:58 PMSan Diego - Austin | Wed, Jun 11 | Frontier Airlines$17136% OFF$268 $171
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AUS 1:53 PM6h 13m1 stopsSAN 6:06 PMAustin - San Diego | Thu, Jun 12 | Frontier Airlines
SAN 10:11 AM2h 59mNonstopAUS 3:10 PMSan Diego - Austin | Wed, Jun 18 | Frontier Airlines$17136% OFF$268 $171
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AUS 6:00 AM3h 20mNonstopSAN 7:20 AMAustin - San Diego | Wed, Jun 11 | Alaska Airlines
SAN 6:15 AM10h 59m1 stopsAUS 7:14 PMSan Diego - Austin | Sat, Jun 14 | Spirit Airlines$17435% OFF$268 $174 -
AUS 11:48 AM8h 18m1 stopsSAN 6:06 PMAustin - San Diego | Thu, Jun 12 | Allegiant Air
SAN 10:11 AM2h 59mNonstopAUS 3:10 PMSan Diego - Austin | Wed, Jun 18 | Frontier Airlines$17535% OFF$268 $175 -
AUS 1:00 PM17h 25m1 stopsSAN Invalid DateAustin - San Diego | Sat, May 24 | Normal Airline
SAN 3:00 PM6hNonstopAUS 4:00 PMSan Diego - Austin | Mon, May 26 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
AUS 7:53 PM2h 52mNonstopSAN 8:45 PMAustin - San Diego | Mon, Jun 16 | Frontier Airlines$83 $10421% OFF21% OFF$104 $83
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AUS 7:53 PM2h 50mNonstopSAN 8:43 PMAustin - San Diego | Wed, Jul 16 | Frontier Airlines$85 $10419% OFF19% OFF$104 $85
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AUS 7:53 PM2h 50mNonstopSAN 8:43 PMAustin - San Diego | Mon, Jul 14 | Frontier Airlines$86 $10418% OFF18% OFF$104 $86
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AUS 1:53 PM6h 23m1 stopsSAN 6:16 PMAustin - San Diego | Fri, Jun 13 | Frontier Airlines$7528% OFF$104 $75
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AUS 1:53 PM6h 23m1 stopsSAN 6:16 PMAustin - San Diego | Mon, Jun 23 | Frontier Airlines$7628% OFF$104 $76
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AUS 1:53 PM24h 2m1 stopsSAN 11:55 AMAustin - San Diego | Sun, Jun 1 | Frontier Airlines$7627% OFF$104 $76
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AUS 1:53 PM6h 13m1 stopsSAN 6:06 PMAustin - San Diego | Thu, Jun 12 | Frontier Airlines$7727% OFF$104 $77
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AUS 1:54 PM24h 10m1 stopsSAN 12:04 PMAustin - San Diego | Sun, Jul 6 | Frontier Airlines$7924% OFF$104 $79
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AUS 8:11 PM17h 46m1 stopsSAN 11:57 AMAustin - San Diego | Mon, Jun 9 | Spirit Airlines$8321% OFF$104 $83 -
AUS 3:15 PM5h 4m1 stopsSAN 6:19 PMAustin - San Diego | Sat, Jul 12 | Frontier Airlines$8320% OFF$104 $83
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AUS 1:00 PM17h 25m1 stopsSAN Invalid DateAustin - San Diego | Sat, May 24 | 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.
Flight Info | Austin to San Diego
| Cheapest one-way flight price | $74 |
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| Cheapest round-trip ticket price | $158 |
| Off-season for travel | March |
| Peak season for travel | February |
| Flight distance | 1,856.08 km |
| Average flight time | 4 hours 23 minutes |
| Popular airline | Alaska Airlines |
When is the cheapest time to fly 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 4 hours 23 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): American Airlines, United Airlines, Southwest Airlines, Hawaiian Airlines and Alaska 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.
Be flexible with your travel dates to get the cheapest Austin to San Diego ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from Austin to San Diego for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is $83 for a one-way ticket on Mon, Jun 16.
Compare cheap Austin to San Diego flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Austin to San Diego. The most affordable airline currently operating on this route is Frontier Airlines.
Set up a Price Alert to track fare drops.
Set up a Price Alert for your Austin to San Diego route to track ticket prices effortlessly—no need to check manually every day.
Don't miss out on cheap Austin to San Diego flight deals and promo codes.
Stay updated on the latest deals with Trip.com Deals and Promo Codes for cheap flights. Sign up for a free membership to unlock even more exclusive flight discounts.
Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from Austin to San Diego to access exclusive deals just for you.
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