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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

12 Apr - 02 May $ 172.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
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10 Apr - 05 May $ 1,022.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
AUS
Austin
AUS
Austin
Alaska Airlines
1 STOPS
PHL
Philadelphia
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08 Apr - 09 May $ 1,180.00
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

12 Apr - 01 May $ 231.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
AUS
Austin
AUS
Austin
Frontier Airlines
1 STOPS
PHL
Philadelphia
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10 Apr - 30 Apr $ 1,070.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
AUS
Austin
AUS
Austin
Alaska Airlines
1 STOPS
PHL
Philadelphia
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08 Apr - 30 Apr $ 1,498.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
AUS
Austin
AUS
Austin
Alaska Airlines
1 STOPS
PHL
Philadelphia
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One-way flights to Austin from Philadelphia

3:17 PM - 10:10 PM
Spirit Airlines
1 Stops
10h 7m
PHL - AUS
$ 102
Kiwi
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1:27 PM - 10:15 PM
United Airlines
2 Stops
10h 48m
PHL - AUS
$ 295
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)

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.