Cheap flights from Washington to Southwest Austin

View AU$166 flight on Mon, 6 Oct. 2025Opens in a new window

Popular airlines from Washington to Southwest Austin

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Washington (WAS) to Southwest Austin (AUS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, 8 Aug. - Thu, 21 Aug.
DCA
Washington
AUS
Austin
AU$378 Return, found 6 days ago
AU$378
Return
found 6 days ago
Select American Airlines flight, departing Fri, 8 Aug. from Washington to Austin, returning Thu, 21 Aug., priced at AU$378 found 6 days ago
Delta
Fri, 8 Aug. - Thu, 21 Aug.
IAD
Washington
AUS
Austin
AU$401 Return, found 6 days ago
AU$401
Return
found 6 days ago
Select Delta flight, departing Fri, 8 Aug. from Washington to Austin, returning Thu, 21 Aug., priced at AU$401 found 6 days ago
Delta
Thu, 14 Aug. - Mon, 18 Aug.
BWI
Baltimore
AUS
Austin
AU$423 Return, found 5 days ago
AU$423
Return
found 5 days ago
Select Delta flight, departing Thu, 14 Aug. from Baltimore to Austin, returning Mon, 18 Aug., priced at AU$423 found 5 days ago
Delta
Sat, 26 Jul. - Sat, 2 Aug.
BWI
Baltimore
AUS
Austin
AU$425 Return, found 4 days ago
AU$425
Return
found 4 days ago
Select Delta flight, departing Sat, 26 Jul. from Baltimore to Austin, returning Sat, 2 Aug., priced at AU$425 found 4 days ago
United
Thu, 14 Aug. - Mon, 18 Aug.
BWI
Baltimore
AUS
Austin
AU$492 Return, found 5 days ago
AU$492
Return
found 5 days ago
Select United flight, departing Thu, 14 Aug. from Baltimore to Austin, returning Mon, 18 Aug., priced at AU$492 found 5 days ago
Alaska Airlines
Sat, 6 Sep. - Wed, 10 Sep.
BWI
Baltimore
AUS
Austin
AU$861 Return, found 2 days ago
AU$861
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 6 Sep. from Baltimore to Austin, returning Wed, 10 Sep., priced at AU$861 found 2 days ago

Find the cheapest month to fly from Washington (WAS) to Austin (AUS)

April is typically the cheapest month to fly

From AU$184 - AU$605 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.