Philadelphia to Austin
PHLAUS
Fly from Philadelphia to Austin starting at USD 74 with Frontier Airlines.
Best fare available on Sep 16, 2026.
Limited seats. Better plans. Book before it's gone.
Philadelphia to Austin cheapest flights this week
Philadelphia to Austin monthly flight fare trend
Aug
from USD 100
Sep
from USD 74
Oct
from USD 96
Nov
No flights
Dec
No flights
Jan
No flights
Airport Details
Origin
Philadelphia
Philadelphia International Airport (PHL)
Philadelphia, PHL
Zone
New York
Elev
36 ft
Destination
Austin
Austin Bergstrom International Airport (AUS)
Austin, AUS
Zone
Chicago
Elev
542 ft
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