$70 Cheap Frontier Airlines flights Austin (AUS) to Washington (IAD)

View $70 flight on Sat, Jan 24, 2026Opens in a new window

$70 Cheap Frontier Airlines flights Austin (AUS) to Washington (IAD)

Prices were available within the past 7 days and start at $70 for one-way flights and $128 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Feb 23 - Sun, Mar 1
AUS
Austin
IAD
Washington
$128 Roundtrip, found 20 hours ago
$128
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Mon, Feb 23 from Austin to Washington, returning Sun, Mar 1, priced at $128 found 20 hours ago
Frontier Airlines
Sat, Jan 24 - Fri, Jan 30
AUS
Austin
IAD
Washington
$138 Roundtrip, found 1 day ago
$138
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jan 24 from Austin to Washington, returning Fri, Jan 30, priced at $138 found 1 day ago
Frontier Airlines
Fri, Feb 27 - Mon, Mar 2
AUS
Austin
IAD
Washington
$155 Roundtrip, found 20 hours ago
$155
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Fri, Feb 27 from Austin to Washington, returning Mon, Mar 2, priced at $155 found 20 hours ago
Frontier Airlines
Sat, Feb 7 - Mon, Feb 23
AUS
Austin
IAD
Washington
$165 Roundtrip, found 6 hours ago
$165
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Feb 7 from Austin to Washington, returning Mon, Feb 23, priced at $165 found 6 hours ago
Frontier Airlines
Mon, Mar 9 - Thu, Mar 12
AUS
Austin
IAD
Washington
$182 Roundtrip, found 8 hours ago
$182
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Mon, Mar 9 from Austin to Washington, returning Thu, Mar 12, priced at $182 found 8 hours ago
Frontier Airlines
Sun, Mar 1 - Sun, Mar 8
AUS
Austin
IAD
Washington
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Mar 1 from Austin to Washington, returning Sun, Mar 8, priced at $190 found 1 day ago

Find the cheapest month to fly from Austin (AUS) to Washington (IAD)

November is typically the cheapest month to fly

From $147 - $564 per traveler.

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city center is 8 minutes. Flights from $514
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $514
Flights from Austin (AUS) to Washington (IAD)
Origin airport
Austin-Bergstrom Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
United
Distance
1295 mi
Average flight time
4 hours 36 mins

Frequently asked questions

How much is a Frontier Airlines flight from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
Landing cheap one-way Frontier Airlines flights from AUS to IAD from $70 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $128 for your next exciting adventure.**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 AUS to IAD with Frontier Airlines?
January is one of the least expensive months to fly to Washington with Frontier Airlines. You could also find great prices on return and one-way tickets in February.
What is the cheapest time to book flights from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD) with Frontier Airlines?
Look for affordable Frontier Airlines flights from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and journey, the best day to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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 Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
To figure out if there's a direct route from AUS to IAD with Frontier Airlines or another carrier, check the "Nonstop" filter when searching for flights.
What is the earliest Frontier Airlines flight from AUS to IAD?
Browse Frontier Airlines's earliest flights from AUS to IAD by selecting the "Early Morning" and "Morning" filters. Not only will you get to your destination 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 Washington?
Take a Frontier Airlines flight from Austin-Bergstrom Intl. Airport (AUS) to Washington, and you'll most likely come in to Washington Dulles Intl. Airport (IAD). This is the airline's main hub here.
Why fly with Frontier Airlines from AUS to IAD?
Offering a rewarding loyalty program, Frontier Airlines is a top pick for many travelers flying from AUS to IAD. Plus, if you're a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of 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 Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that. For further details about modifying your reservation, check out your "Trips," select your flight and click on "Manage Booking." If you want the freedom to make changes without being charged, check the "Changes included" and "No cancel fee" filters when organizing your trip.

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*Available to One Key members.