Cheap Flights from Austin to San Diego

Cheapest flights from Austin to San Diego

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Austin to San Diego. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$88

Southwest Airlines

Direct flight

3h 10m

11/26/2025

The cheapest one-way flight from Austin to San Diego departs on 11/26/2025, is operated by Southwest Airlines and costs $88

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Austin to San Diego

The fastest flight

3h 10m

Fastest flight from Austin to San Diego takes 3h 10m

Direct flights

Several times a week

There are direct flights on this route 2 days a week: We and Sa

Earliest flight

6:00 AM

Latest flight

9:05 PM

Direct flights count

86

Distance

1858km

Timezone difference

2h

The distance between Austin and San Diego is 1858km (1152 miles). There are 86 direct flights from Austin to San Diego. The time difference between Austin and San Diego is 2h. Flights from Austin begin at 6:00 AM. The latest flight from Austin departs at 9:05 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Austin to San Diego by month

We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Austin to San Diego

October 2025

Lowest price

on average:

$101

Avg Price

Airlines operating on route

The Austin — San Diego route is served by multiple airlines, including Alaska Airlines, Frontier Airlines, and Southwest Airlines. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $88, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.

Alaska Airlines

Starting at $162

Frontier Airlines

Starting at $169

Southwest Airlines

Starting at $88

Direct Flights from Austin to San Diego

A direct flight is the most convenient and comfortable way to fly from Austin to San Diego, despite the fact that sometimes flights with transfers can cost significantly less.

Austin — San Diego

AUS — SAN

11/25/2025

Departure

Direct flight

AS3301

Starting at $261

Austin — San Diego

AUS — SAN

12/27/2025

Departure

Direct flight

F91877

Starting at $169

Schedule of direct flights from Austin to San Diego

A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Austin to San Diego:

Unable to find information about the schedule of direct flights from

Austin airports overview

AUS

Austin-Bergstrom International Airport

Airlines flying to this airport

$88

Starting at

$170

on average

San Diego airports overview

SAN

San Diego International Airport

Airlines flying to this airport

$88

Starting at

$170

on average

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

How much is the cheapest flight ticket from Austin to San Diego?

The cheapest flight ticket from Austin to San Diego according to data for the last 48 hours costs $88

When is the best time to buy air tickets on the route Austin — San Diego?

Often the best time to buy tickets from Austin to San Diego is 2 months before departure.

When is the cheapest time of year to fly from Austin to San Diego?

Based on statistics over the past years, the lowest prices for flights from Austin to San Diego can be found flying in these months: October.

How long does it take to fly from Austin to San Diego?

The fastest flights from Austin to San Diego start from 3 hours 10 minutes in the air.

Which airline can fly direct from Austin to San Diego?

The following airlines operate direct flights on the route Austin — San Diego: Alaska Airlines, Frontier Airlines

Special offers and sales on air tickets from Austin to San Diego

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Austin to San Diego

Alternative routes

Abilene ➜ San Diego•Waco ➜ San Diego•College Station ➜ San Diego•Corpus Christi ➜ San Diego•Dallas ➜ San Diego•Killeen ➜ San Diego•San Angelo ➜ San Diego•Austin ➜ Bakersfield•Austin ➜ Long Beach•Austin ➜ Mexicali•Austin ➜ Phoenix•Austin ➜ Santa Barbara•Austin ➜ Santa Maria•Austin ➜ Tijuana•Austin ➜ Yuma

•••••••••••••••••••

Cheapest one way flight

$88

Southwest Airlines

Direct flight

3h 10m

11/26/2025

The cheapest one-way flight from Austin to San Diego departs on 11/26/2025, is operated by Southwest Airlines and costs $88

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Austin to San Diego

The fastest flight