Find cheap airlines flights from Austin to San Diego

Choose from 3 carriers that fly from Austin to San Diego, including Alaska Airlines, Frontier Airlines, and Hawaiian Airlines. Enjoy the cheapest tickets on this route with Frontier Airlines.

Book direct flights from Austin to San Diego: One way flights from $31, round trip flights from $61. Find flight deals for the next 3 months below.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Austin to San Diego

The distance between Austin and San Diego is about 1,856.08 km. It takes around 3 hours 45 minutes on average to fly from Austin to San Diego. The most popular month to San Diego is July. The off-season for travel is November.

Cheapest one-way flight price$31
Cheapest round-trip ticket price$61
Off-season for travelNovember
Peak season for travelJuly
Flight distance1,856.08 km
Average flight time3 hours 45 minutes
Popular airlineAlaska Airlines

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

The cheapest time for Austin to San Diego flights: Jan 11 to Jan 18 — one way flight prices from $25.

Cheapest flights
From price
Search
  • 916
  • 1623
  • 2330
  • Dec

    307
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • Which airlines offer direct flights from Austin to San Diego?

    At the moment, you can catch a nonstop flight from Austin to San Diego with the following airlines, including: Alaska Airlines Frontier Airlines Hawaiian Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 3 hours 45 minutes to fly from Austin (AUS) to San Diego (SAN).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Austin to San Diego is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 29 flight per week flying from Austin to San Diego. You can check the weekly schedule for popular airlines on this route below: Hawaiian Airlines: S/M/T/W/T/F/S -- HA4767 (06:42)
  • The cheapest months to fly from Austin to San Diego is November, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Austin to San Diego on November 13, 2025 with Frontier Airlines, with prices starting at $76.
  • You can land at any one of the following hubs in San Diego, with Austin–Bergstrom International Airport to San Diego International Airport (AUS-SAN) is by far the most common option on this route: San Diego International Airport (SAN) McClellan-Palomar Airport (CLD) Marine Corps Air Station Miramar (NKX).
  • The time difference between San Diego and Austin is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.