FlightsFrom Austin

To San Diego

Cheap Flights from Austin to San Diego

Browse current best options from Austin. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Austin

RatePunk searches hundreds of travel sites at once for deals on flights to San Diego

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Austin to San Diego

Explore current cheapest deals departing from Austin to San Diego

August 20 - August 22

Cheapest
Best

AUS - San Diego

$388

$183

Round trip

August 19 - August 24

AUS - San Diego

$382

$188

Round trip

September 15 - September 23

AUS - San Diego

$305

$188

Round trip

September 15 - September 30

AUS - San Diego

$284

$188

Round trip

September 15 - September 16

AUS - San Diego

$326

$188

Round trip

September 15 - September 29

AUS - San Diego

$288

$188

Round trip

August 18 - September 9

Earliest

AUS - San Diego

$326

$188

Round trip

August 25 - September 9

AUS - San Diego

$334

$188

Round trip

August 18 - September 16

Earliest

AUS - San Diego

$323

$188

Round trip

September 1 - September 5

AUS - San Diego

$203

$192

Round trip

Unlock all 500+ flight deals to San Diego and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Austin to San Diego

A typical journey from Austin to San Diego takes about 11h 39m, including connections. This is a medium-haul route, covering a distance of 1870 kilometers. Given that most itineraries connect at least once, this duration reflects the time spent on layovers in addition to flight segments.
For travelers seeking cheap flights from Austin to San Diego, prices typically range from $241–$693, with a median of $433. Right now, fares are significantly below the typical level for this route. Currently, about 8% of recent fares are considered a good price, indicating that finding a particularly low fare can require some flexibility.
When is the cheapest time to fly from Austin to San Diego? The data indicates that December is often the most affordable month, with a median fare of $197. Following closely are April, with a median of $198, and March, where the median fare is $204. These months present the best opportunities for finding lower prices.
Regarding direct flights from Austin to San Diego, only 36.8% of recent fares are non-stop. This means that most itineraries connect at least once, with a typical connecting journey involving 2 stopovers. New deals appear almost daily for this route, so setting up a price alert can be beneficial for tracking fare changes.

How much is a round trip from Austin to San Diego

Regular price: $289 - $417

Prices are currently below the regular range.

The regular price range for flights from Austin to San Diego is typically between $289 and $417. The current lowest deal is $183 with Frontier Airlines, for travel from Aug 20-Aug 22.

now $183

Low $289

High $417

The cheapest time to fly from Austin to San Diego

The cheapest month to fly from Austin to San Diego is December, with a median price of $197. The most expensive month is June, with a median price of $636. Prices are generally lower from March to December.

December

Cheapest

Flights from $197

June

Most Expensive

Flights from $636

Jan
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Direct flights from Austin to San Diego

Airline logo

Alaska Airlines, Inc.

Last-minute flights going from Austin to San Diego

Tue, Jul 7

⌛ Last-Minute

AUS - San Diego

Southwest Airlines

Austin (AUS) - San Diego (SAN)

Southwest Airlines

$273

$207

One-way

Tue, Jul 7

⌛ Last-Minute

AUS - San Diego

United Airlines

Austin (AUS) - San Diego (SAN)

United Airlines

$237

$217

One-way

Tue, Jul 7

⌛ Last-Minute

AUS - San Diego

American Airlines

Austin (AUS) - San Diego (SAN)

American Airlines

$260

$217

One-way

Wed, Jul 8

⌛ Last-Minute

AUS - San Diego

United Airlines

Austin (AUS) - San Diego (SAN)

United Airlines

$237

$217

One-way

Wed, Jul 8

⌛ Last-Minute

AUS - San Diego

American Airlines

Austin (AUS) - San Diego (SAN)

American Airlines

$260

$217

One-way

Tue, Jul 14

⌛ Last-Minute

AUS - San Diego

United Airlines

Austin (AUS) - San Diego (SAN)

United Airlines

$233

$217

One-way

Biggest price drops on these dates for flights from Austin to San Diego

2 nights

Aug 20 - Aug 22

$388  →  $183

53%

5 nights

Aug 19 - Aug 24

$382  →  $188

51%

5 nights

Oct 14 - Oct 19

$410  →  $224

45%

4 nights

Oct 14 - Oct 18

$413  →  $231

44%

Popular Airports to fly from Austin to San Diego

Austin - San Diego route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Austin to San Diego are below the typical level, with prices around $183.

📅 Best time to fly

Cheapest months: December, April, March

Historically, the cheapest months to fly are December ($197), April ($198), and March ($204).

⏱️ Flight duration

Median flight time is 11h 39m

The median flight time for this route is 11 hours and 39 minutes.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant for this route, with a median of 2 stopovers.

🏆 Airline highlight

Alaska Airlines offers direct flights

Alaska Airlines, Inc. is an airline that offers direct flights on this route.

🎯 Booking tip

Deals are frequent

Deals for flights from Austin to San Diego are frequent, with over 1 deal per day.

Austin main airports to depart from

Austin–Bergstrom International (AUS)

Cheapest

Austin–Bergstrom International Airport is a great choice for flights from Austin to San Diego.

📍 ~10 km from city center (reachable by car)

💸 Flights from ~$183

San Diego main airports to arrive at

San Diego International (SAN)

Cheapest

San Diego International Airport is a convenient arrival option for flights from Austin to San Diego.

📍 ~5 km from San Diego city center (reachable by car)

💸 Flights from ~$183

McClellan–Palomar (CLD)

McClellan–Palomar Airport offers an alternative arrival point for flights from Austin to San Diego.

📍 ~40 km from San Diego city center (reachable by car)

💸 Flights from ~$320

Airports nearby San Diego used as alternative

Tijuana International (TIJ)

Consider Tijuana International for direct access to Mexico flights via the Cross Border Xpress terminal.

📍 ~25 km from San Diego (reachable by car)

💸 Flights from ~$328

John Wayne (SNA)

John Wayne offers a strong domestic network as a major US alternative, often less congested than LAX.

📍 ~120 km from San Diego (reachable by car)

💸 Flights from ~$230

Los Angeles International (LAX)

Cheapest

Los Angeles International is a primary global hub with extensive international and domestic route options.

📍 ~180 km from San Diego (reachable by car)

💸 Flights from ~$182

Ontario International (ONT)

Ontario International is a reliable domestic alternative with growing service, often less congested than LAX or SNA.

📍 ~185 km from San Diego (reachable by car)

💸 Flights from ~$188

Long Beach (LGB)

Long Beach is easy to navigate with fast security, a good alternative for specific West Coast routes.

📍 ~150 km from San Diego (reachable by car)

💸 Flights from ~$299

Business & First Class Flight Deals to San Diego

Discover luxury on the budget with premium cabin class on flights from Austin to San Diego.

Elite

Best Elite deals to San Diego

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From AUS

Elite

Jul 14

San Diego, United States

84% AI deal score

$1,397

$779

Save $618

From AUS

Elite

Sep 14

San Diego, United States

83% AI deal score

$985

$561

Save $424

From AUS

Elite

Sep 16

San Diego, United States

83% AI deal score

$1,425

$774

Save $651

From AUS

Elite

Sep 12

San Diego, United States

83% AI deal score

$1,444

$788

Save $656

From AUS

Elite

Sep 19

San Diego, United States

83% AI deal score

$1,461

$788

Save $673

From AUS

Elite

Jul 24

San Diego, United States

83% AI deal score

$1,371

$794

Save $577

From AUS

Elite

Sep 09

San Diego, United States

82% AI deal score

$921

$547

Save $374

From AUS

Elite

Sep 09

San Diego, United States

82% AI deal score

$921

$547

Save $374

From AUS

Elite

Sep 09

San Diego, United States

82% AI deal score

$896

$547

Save $349

From AUS

Elite

Sep 14

San Diego, United States

82% AI deal score

$975

$561

Save $414

From AUS

Elite

Sep 19

San Diego, United States

82% AI deal score

$935

$561

Save $374

From AUS

Elite

Dec 08

San Diego, United States

82% AI deal score

$857

$547

Save $310

From AUS

Elite

Aug 11

San Diego, United States

82% AI deal score

$1,364

$788

Save $576

From AUS

Elite

Aug 25

San Diego, United States

81% AI deal score

$818

$547

Save $271

From AUS

Elite

Aug 25

San Diego, United States

81% AI deal score

$820

$547

Save $273

From AUS

Elite

Aug 25

San Diego, United States

81% AI deal score

$818

$547

Save $271

From AUS

Elite

Aug 25

San Diego, United States

81% AI deal score

$851

$547

Save $304

From AUS

Elite

Sep 01

San Diego, United States

81% AI deal score

$855

$549

Save $306

From AUS

Elite

Aug 11

San Diego, United States

81% AI deal score

$819

$550

Save $269

From AUS

Elite

Dec 02

San Diego, United States

81% AI deal score

$845

$553

Save $292

From AUS

Elite

Aug 22

San Diego, United States

81% AI deal score

$847

$561

Save $286

From AUS

Elite

Sep 14

San Diego, United States

81% AI deal score

$896

$561

Save $335

From AUS

Elite

Sep 09

San Diego, United States

81% AI deal score

$911

$561

Save $350

From AUS

Elite

Sep 09

San Diego, United States

81% AI deal score

$893

$561

Save $332

From AUS

Elite

Dec 01

San Diego, United States

81% AI deal score

$792

$547

Save $245

From AUS

Elite

Dec 01

San Diego, United States

81% AI deal score

$790

$547

Save $243

From AUS

Elite

Dec 08

San Diego, United States

81% AI deal score

$859

$561

Save $298

From AUS

Elite

Dec 09

San Diego, United States

81% AI deal score

$858

$561

Save $297

From AUS

Elite

Dec 01

San Diego, United States

81% AI deal score

$859

$561

Save $298

From AUS

Elite

Aug 08

San Diego, United States

81% AI deal score

$1,355

$807

Save $548

From AUS

Elite

Aug 22

San Diego, United States

80% AI deal score

$820

$561

Save $259

From AUS

Elite

Aug 22

San Diego, United States

80% AI deal score

$820

$561

Save $259

From AUS

Elite

Aug 15

San Diego, United States

80% AI deal score

$828

$561

Save $267

From AUS

Elite

Aug 25

San Diego, United States

80% AI deal score

$818

$561

Save $257

From AUS

Elite

Dec 01

San Diego, United States

80% AI deal score

$784

$561

Save $223

From AUS

Elite

Nov 26

San Diego, United States

80% AI deal score

$794

$561

Save $233

From AUS

Elite

Dec 01

San Diego, United States

80% AI deal score

$857

$592

Save $265

From AUS

Elite

Jul 21

San Diego, United States

80% AI deal score

$1,395

$914

Save $481

From AUS

Elite

Jul 28

San Diego, United States

79% AI deal score

$780

$547

Save $233

From AUS

Elite

Jul 29

San Diego, United States

79% AI deal score

$785

$548

Save $237

From AUS

Elite

Jul 07

San Diego, United States

79% AI deal score

$798

$549

Save $249

From AUS

Elite

Dec 02

San Diego, United States

79% AI deal score

$795

$592

Save $203

From AUS

Elite

Dec 02

San Diego, United States

79% AI deal score

$790

$592

Save $198

From AUS

Elite

Jul 28

San Diego, United States

78% AI deal score

$764

$561

Save $203

From AUS

Elite

Jul 22

San Diego, United States

78% AI deal score

$1,395

$985

Save $410

From AUS

Elite

Dec 11

San Diego, United States

77% AI deal score

$880

$651

Save $229

From AUS

Elite

Jul 21

San Diego, United States

77% AI deal score

$1,371

$1,009

Save $362

From AUS

Elite

Jul 21

San Diego, United States

77% AI deal score

$1,376

$1,009

Save $367

From AUS

Elite

Jul 20

San Diego, United States

77% AI deal score

$1,395

$1,024

Save $371

From AUS

Elite

Dec 10

San Diego, United States

73% AI deal score

$868

$655

Save $213

From AUS

Elite

Jun 28

San Diego, United States

73% AI deal score

$1,422

$1,090

Save $332

From AUS

Elite

Nov 22

San Diego, United States

71% AI deal score

$784

$651

Save $133

From AUS

Elite

Jul 02

San Diego, United States

71% AI deal score

$1,393

$1,141

Save $252

From AUS

Elite

Jun 21

San Diego, United States

71% AI deal score

$1,507

$1,240

Save $267

From AUS

Elite

Nov 22

San Diego, United States

70% AI deal score

$795

$696

Save $99

From AUS

Elite

Dec 10

San Diego, United States

70% AI deal score

$858

$747

Save $111

From AUS

Elite

Nov 22

San Diego, United States

68% AI deal score

$824

$787

Save $37

From AUS

Elite

Nov 22

San Diego, United States

66% AI deal score

$812

From AUS

Elite

Nov 26

San Diego, United States

66% AI deal score

$826

From AUS

Elite

Nov 20

San Diego, United States

45% AI deal score

$1,197

From AUS

Elite

Nov 21

San Diego, United States

45% AI deal score

$1,201

From AUS

Elite

Jun 20

San Diego, United States

45% AI deal score

$1,205

From AUS

Elite

Jun 20

San Diego, United States

45% AI deal score

$1,205

From AUS

Elite

Jun 20

San Diego, United States

45% AI deal score

$1,205

From AUS

Elite

Jun 20

San Diego, United States

45% AI deal score

$1,205

Frequently Asked Questions About Flights to San Diego

Historically, the optimal time to purchase tickets from Austin to San Diego is 60+ days before departure. Flights booked within this window typically average around $329. In contrast, booking 0-6 days before departure sees average prices rise significantly to $792. For those booking 7-13 days out, the average price is $832, while 14-27 days out shows an average of $703. Across the trailing quarter, prices tend to increase closer to the departure date.

A good price for a flight from Austin to San Diego is considered to be $241 or less. This threshold represents the lowest 25% of fares observed across the trailing quarter. The median price for this route over the same period was $433, with 75% of fares being $693 or less. Travelers aiming for a budget-friendly trip should target prices at or below the $241 mark.

Historically, December is the cheapest month to fly from Austin to San Diego, with a median price of $197. April also offers low fares, with a median price of $198. March, while appearing as a cheapest month candidate with a median of $204, is also identified as the most expensive month, indicating significant price fluctuations within that period. The annual median price for this route is $433, suggesting that certain months offer substantial savings.