Cheap flights from Philadelphia to Southwest Austin

View AU$283 flight on Mon, 18 Aug. 2025Opens in a new window

Popular airlines from Philadelphia to Southwest Austin

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Philadelphia (ILG) 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
Mon, 18 Aug. - Sat, 23 Aug.
PHL
Philadelphia
AUS
Austin
AU$240 Return, found 7 hours ago
AU$240
Return
found 7 hours ago
Select American Airlines flight, departing Mon, 18 Aug. from Philadelphia to Austin, returning Sat, 23 Aug., priced at AU$240 found 7 hours ago
American Airlines
Mon, 18 Aug. - Sat, 23 Aug.
PHL
Philadelphia
AUS
Austin
AU$327 Return, found 7 hours ago
AU$327
Return
found 7 hours ago
Select American Airlines flight, departing Mon, 18 Aug. from Philadelphia to Austin, returning Sat, 23 Aug., priced at AU$327 found 7 hours ago
American Airlines
Mon, 18 Aug. - Sat, 23 Aug.
PHL
Philadelphia
AUS
Austin
AU$342 Return, found 7 hours ago
AU$342
Return
found 7 hours ago
Select American Airlines flight, departing Mon, 18 Aug. from Philadelphia to Austin, returning Sat, 23 Aug., priced at AU$342 found 7 hours ago
American Airlines
Mon, 18 Aug. - Sat, 23 Aug.
PHL
Philadelphia
AUS
Austin
AU$356 Return, found 7 hours ago
AU$356
Return
found 7 hours ago
Select American Airlines flight, departing Mon, 18 Aug. from Philadelphia to Austin, returning Sat, 23 Aug., priced at AU$356 found 7 hours ago
Delta
Mon, 18 Aug. - Sat, 23 Aug.
PHL
Philadelphia
AUS
Austin
AU$360 Return, found 7 hours ago
AU$360
Return
found 7 hours ago
Select Delta flight, departing Mon, 18 Aug. from Philadelphia to Austin, returning Sat, 23 Aug., priced at AU$360 found 7 hours ago
United
Mon, 18 Aug. - Sat, 23 Aug.
PHL
Philadelphia
AUS
Austin
AU$689 Return, found 7 hours ago
AU$689
Return
found 7 hours ago
Select United flight, departing Mon, 18 Aug. from Philadelphia to Austin, returning Sat, 23 Aug., priced at AU$689 found 7 hours ago

Find the cheapest month to fly from Philadelphia (PHL) to Austin (AUS)

September is typically the cheapest month to fly

From AU$181 - AU$317 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.