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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 July , August 2026

30 Jul - 15 Aug $ 309.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
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28 Jul - 05 Aug $ 440.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
Pick dates
29 Jul - 05 Aug $ 440.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
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Last minute flights from Philadelphia to Austin

30 Jul - 31 Jul $ 374.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
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28 Jul - 31 Jul $ 467.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
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29 Jul - 31 Jul $ 1,085.00
PHL
Philadelphia
United Airlines
1 STOPS
AUS
Austin
AUS
Austin
United Airlines
1 STOPS
PHL
Philadelphia
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One-way flights to Austin from Philadelphia

6:18 PM - 6:30 AM
Allegiant Air
1 Stops
14h 34m
PHL - AUS
$ 167
Kiwi
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6:00 AM - 9:45 AM
JetBlue Airways
1 Stops
6h 48m
PHL - AUS
$ 272
Kiwi
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1:04 PM - 4:20 PM
United Airlines
1 Stops
5h 23m
PHL - AUS
$ 528
Kiwi
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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.