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Find cheap Southwest flights to Austin

RDU — AUS
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Find Southwest flight deals to Austin

Cheapest Southwest flights from USA to Austin
Explore the most affordable Southwest flight options available from USA to Austin. Find the lowest fares with prices last updated on July 27, 2026.

This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:05 am
SFO
-
AUS
Nonstop3h 30m
Southwest
Wed 8/1912:10 pm
AUS
-
SFO
Nonstop3h 40m
Southwest
Deal found 7/27$227
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:00 pm
SFO
-
AUS
1 stop8h 10m
Southwest
Mon 8/243:50 pm
AUS
-
SFO
Nonstop3h 45m
Southwest
Deal found 7/27$237
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:50 pm
SFO
-
AUS
2 stops7h 35m
Southwest
Mon 8/313:50 pm
AUS
-
SFO
Nonstop3h 45m
Southwest
Deal found 7/27$242

Flights to Austin with Southwest at a glance

Find detailed information about Southwest flights from USA to Austin. Explore the options provided by Southwest to plan your journey from USA to Austin. Data last updated July 27, 2026.

Popular in

March

Cheapest in

September

Average price

$365

Round-trip from

$227

One-way from

$124

Good one-way deal

$90 or less
Highest demand for flights to Austin with Southwest; 7% potential price increase.
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Best time to find cheap flights to Austin with Southwest; 1% potential price drop.
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Average price for flights to Austin with Southwest (round-trip).
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Southwest
  • Southwest
  • 9/8-9/16
  • Nonstop
  • 7h 15m total
  • USA to Austin
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Southwest
  • Southwest
  • 8/20
  • 1 total stop
  • 6h 30m total
  • USA to Austin
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Price to beat on a one-way flight from the United States to Austin with Southwest.
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Cheapflights Insights

Find cheap Southwest flights to Austin

How long is the flight to Austin with Southwest?

On average, Southwest flights from the United States to Austin take 3 hours 6 minutes. Flights to Austin from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.

Southwest weekly flight availability to Austin

The most flights to Austin operated by Southwest are scheduled on a Monday (123 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (88 on average).

When is the best time to book a flight to Austin with Southwest?

The best time to book a flight to Austin with Southwest is 77 days before departure. On average, fares are higher if you book on the same day as departure.

When is the cheapest time to fly to Austin with Southwest?

Users looking for the cheapest Southwest fares to Austin should consider flying on Tuesday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday afternoons, when prices are usually at their highest.

FAQs about flights to Austin with Southwest

  • Which airport do Southwest flights arrive at when travelling to Austin?

    Southwest flights on this route tend to land at Austin Bergstrom Airport.

  • Is Southwest the cheapest airline for a flight to Austin?

    Flight prices will depend on many factors like date, time and cabin class so it is worth comparing flights before booking. Based on Cheapflights data the cheapest average return price for flights to Austin tends to be with Sun Country Air.

  • Are there alternative airlines other than Southwest that fly to Austin?

    Delta, American Airlines and United Airlines all fly to Austin and offer an alternative to Southwest.

  • How much is a flight to Austin with Southwest?

    The average price for a return flight with Southwest is $402; with a one-way flight around $262.

See more FAQs

Reviews of Southwest

See what Cheapflights users have to say about their Southwest experience.
Southwest
8.0
Very good
4,229 reviews
Overview

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Crew

8.6

Popular Southwest flights

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