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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 April , May 2026

30 Apr - 21 May $ 329.00
PHL
Philadelphia
Allegiant Air
1 STOPS
AUS
Austin
AUS
Austin
Allegiant Air
1 STOPS
PHL
Philadelphia
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29 Apr - 10 May $ 1,352.00
PHL
Philadelphia
Alaska Airlines
2 STOPS
AUS
Austin
AUS
Austin
Alaska Airlines
1 STOPS
PHL
Philadelphia
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30 Apr - 10 May $ 1,433.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
AUS
Austin
AUS
Austin
Alaska Airlines
1 STOPS
PHL
Philadelphia
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Last minute flights from Philadelphia to Austin

27 Apr - 30 Apr $ 479.00
PHL
Philadelphia
Frontier Airlines
2 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
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29 Apr - 30 Apr $ 932.00
PHL
Philadelphia
United Airlines
1 STOPS
AUS
Austin
AUS
Austin
United Airlines
1 STOPS
PHL
Philadelphia
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29 Apr - 30 Apr $ 932.00
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

9:29 AM - 9:00 AM
Frontier Airlines
1 Stops
27h 52m
PHL - AUS
$ 195
Kiwi
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1:27 PM - 7:45 PM
United Airlines
1 Stops
10h 20m
PHL - AUS
$ 415
Kiwi
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12:55 PM - 4:20 PM
United Airlines
1 Stops
5h 31m
PHL - AUS
$ 523
Kiwi
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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)
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.