$163 Cheap Frontier Airlines flights Washington (IAD) to Austin (AUS)

View $163 flight on Thu, Nov 6, 2025Opens in a new window

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$163 Cheap Frontier Airlines flights Washington (IAD) to Austin (AUS)

Prices were available within the past 7 days and start at $163 for one-way flights and $234 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Aug 9 - Sat, Aug 23
IAD
Washington
AUS
Austin
$234 Roundtrip, found 2 hours ago
$234
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, Aug 9 from Washington to Austin, returning Sat, Aug 23, priced at $234 found 2 hours ago
Flights from Washington (IAD) to Austin (AUS)
Origin airport
Washington Dulles Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
United
Distance
1295 mi
Average flight time
2 hours 26 mins

Frequently asked questions

How much is a Frontier Airlines flight from Washington Dulles Intl. Airport (IAD) to Austin-Bergstrom Intl. Airport (AUS)?
You'll discover budget-friendly return Frontier Airlines flights from $234 from IAD to AUS by sorting your results from "Price (lowest to highest)" on Expedia. Or search for deals from $163 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from IAD to AUS with Frontier Airlines?
January is one of the most affordable months to get away to Austin with Frontier Airlines. You could also find fantastic deals on one-way and round-trip tickets in December.
What is the cheapest time to book flights from Washington Dulles Intl. Airport (IAD) to Austin-Bergstrom Intl. Airport (AUS) with Frontier Airlines?
Start searching one to three months ahead of your departure date to score cheap fares on Frontier Airlines flights from Washington Dulles Intl. Airport (IAD) to Austin-Bergstrom Intl. Airport (AUS). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from Washington Dulles Intl. Airport (IAD) to Austin-Bergstrom Intl. Airport (AUS)?
Use our "Nonstop" filter when looking for direct Frontier Airlines flights from IAD to AUS. It's also a great way to compare other airlines servicing the same direct trip.
What is the earliest Frontier Airlines flight from IAD to AUS?
Find Frontier Airlines's earliest flights from IAD to AUS by checking the "Early Morning" and "Morning" filters. Not only will you get to where you're going sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Austin?
Austin-Bergstrom Intl. Airport (AUS) is the primary Austin gateway for Frontier Airlines flights from Washington Dulles Intl. Airport (IAD).
Why fly with Frontier Airlines from IAD to AUS?
Offering a rewarding loyalty program, Frontier Airlines is a popular choice for many travelers journeying from IAD to AUS. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Frontier Airlines flight from Washington Dulles Intl. Airport (IAD) to Austin-Bergstrom Intl. Airport (AUS)?
Depending on your ticket type, a fee may apply if you modify or cancel your booking more than 24 hours after confirmation. To find plane tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when you look for flights. For more information on canceling or modifying your reservation, head to "Trips," select your flight and tick "Manage Booking."

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*Available to One Key members.