Washington to Austin
IADAUS
Fly from Washington to Austin starting at USD 73 with Frontier Airlines.
Best fare available on Aug 24, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to Austin cheapest flights this week
Washington to Austin monthly flight fare trend
Aug
from USD 73
Sep
from USD 86
Oct
No flights
Nov
from USD 123
Dec
No flights
Jan
No flights
Airport Details
Origin
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
Destination
Austin
Austin Bergstrom International Airport (AUS)
Austin, AUS
Zone
Chicago
Elev
542 ft
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