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Cheap flights from Philadelphia (PHL) to Austin (AUS)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Philadelphia (PHL) to Austin (AUS)

How to find the cheapest flight from Philadelphia (PHL) to Austin (AUS)
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How to find the cheapest flight from Philadelphia (PHL) to Austin (AUS)
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How to find the cheapest flight from Philadelphia (PHL) to Austin (AUS)
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Cheap flights from Philadelphia to Austin in February , March 2026

25 Feb - 10 Mar $ 133.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
Pick dates
06 Feb - 16 Mar $ 823.00
PHL
Philadelphia
United Airlines
1 STOPS
AUS
Austin
AUS
Austin
United Airlines
1 STOPS
PHL
Philadelphia
Pick dates
06 Feb - 16 Mar $ 937.00
PHL
Philadelphia
United Airlines
1 STOPS
AUS
Austin
AUS
Austin
United Airlines
1 STOPS
PHL
Philadelphia
Pick dates

Last minute flights from Philadelphia to Austin

25 Feb - 28 Feb $ 121.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
Pick dates
14 Feb - 28 Feb $ 426.00
PHL
Philadelphia
United Airlines
1 STOPS
AUS
Austin
AUS
Austin
United Airlines
1 STOPS
PHL
Philadelphia
Pick dates
14 Feb - 28 Feb $ 426.00
PHL
Philadelphia
United Airlines
1 STOPS
AUS
Austin
AUS
Austin
United Airlines
1 STOPS
PHL
Philadelphia
Pick dates

One-way flights to Austin from Philadelphia

12:00 PM - 6:55 PM
Spirit Airlines
1 Stops
9h 53m
PHL - AUS
$ 61
Kiwi
Pick dates
6:30 AM - 9:15 AM
United Airlines
1 Stops
6h 57m
PHL - AUS
$ 494
Kiwi
Pick dates
10:31 AM - 9:00 PM
Frontier Airlines
2 Stops
14h 45m
PHL - AUS
$ 728
Kiwi
Pick dates

How to find the cheapest flight from Philadelphia (PHL) to Austin (AUS)

Related info for your journey
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How to find the cheapest flight from Philadelphia (PHL) to Austin (AUS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Philadelphia (PHL) to Austin (AUS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.