$99 Cheap Flights from Austin (AUS) to Washington (IAD)

View $99 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Austin to Washington (AUS-IAD)

Prices were available within the past 7 days and start at $99 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Nov 1 - Mon, Nov 3
AUS
Austin
IAD
Washington
$197 Roundtrip, just found
$197
Roundtrip
just found
Select United flight, departing Sat, Nov 1 from Austin to Washington, returning Mon, Nov 3, priced at $197 just found
United
Sat, Nov 1 - Mon, Nov 3
AUS
Austin
IAD
Washington
$203 Roundtrip, just found
$203
Roundtrip
just found
Select United flight, departing Sat, Nov 1 from Austin to Washington, returning Mon, Nov 3, priced at $203 just found
Southwest Airlines
Sat, Nov 1 - Mon, Nov 3
AUS
Austin
IAD
Washington
$207 Roundtrip, just found
$207
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Nov 1 from Austin to Washington, returning Mon, Nov 3, priced at $207 just found
United
Sat, Nov 1 - Mon, Nov 3
AUS
Austin
IAD
Washington
$209 Roundtrip, just found
$209
Roundtrip
just found
Select United flight, departing Sat, Nov 1 from Austin to Washington, returning Mon, Nov 3, priced at $209 just found
American Airlines
Sat, Sep 6 - Mon, Sep 8
AUS
Austin
IAD
Washington
$210 Roundtrip, just found
$210
Roundtrip
just found
Select American Airlines flight, departing Sat, Sep 6 from Austin to Washington, returning Mon, Sep 8, priced at $210 just found
Southwest Airlines
Sat, Nov 1 - Mon, Nov 3
AUS
Austin
IAD
Washington
$213 Roundtrip, just found
$213
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Nov 1 from Austin to Washington, returning Mon, Nov 3, priced at $213 just found
United
Sat, Nov 1 - Mon, Nov 3
AUS
Austin
IAD
Washington
$214 Roundtrip, just found
$214
Roundtrip
just found
Select United flight, departing Sat, Nov 1 from Austin to Washington, returning Mon, Nov 3, priced at $214 just found
American Airlines
Wed, Sep 10 - Wed, Sep 17
AUS
Austin
IAD
Washington
$217 Roundtrip, just found
$217
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 10 from Austin to Washington, returning Wed, Sep 17, priced at $217 just found
Delta
Sat, Sep 6 - Mon, Sep 8
AUS
Austin
IAD
Washington
$220 Roundtrip, just found
$220
Roundtrip
just found
Select Delta flight, departing Sat, Sep 6 from Austin to Washington, returning Mon, Sep 8, priced at $220 just found
Frontier Airlines
Sat, Aug 23 - Sat, Aug 30
AUS
Austin
IAD
Washington
$228 Roundtrip, found 3 hours ago
$228
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Austin to Washington, returning Sat, Aug 30, priced at $228 found 3 hours ago

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

June is typically the cheapest month to fly

From $169 - $459 per traveler.

Graph displaying average flight prices per month

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. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $288
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $288
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, Southwest Airlines, United
Roundtrip price
$197
Distance
1295 mi
Average flight time
4 hours 17 mins

Austin to Washington Flights

The cheapest times to fly from Austin to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Austin to Washington are during the month of November. You can find some of the cheapest flights from Austin to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Austin to Washington

Sunday is one of the best days to book for cheap flights from Austin to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Austin to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Austin to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $99 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Austin to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Austin to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD) cost?
Cheap return flights from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD) start from $277. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving AUS on August 11 2025 and touching down at IAD. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from AUS to IAD?
The cheapest flights from AUS to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
Jump on a nonstop flight with United Airlines and head straight from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD).
What is the cheapest airline that flies from AUS to IAD?
Book a flight from AUS to IAD with United. This airline currently offers the lowest one-way fare for this route, starting at $129. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from AUS on August 11 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
Daily, an average of 2 direct flights operate from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD). Select the departure date that fits your schedule best.
What are the most popular departure times for flights from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
Flights between AUS and IAD tend to be busiest at 5 PM. If you're after a quieter experience and possibly cheaper tickets, choose a departure outside the usual busy windows.
What day of the week has the most flights from AUS to IAD?
Jet off on a Friday if you're after the best choice of flights from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
Take the earliest flight at around 7:05AM UTC-6, departing from Austin-Bergstrom Intl. Airport (AUS). You'll be flying for approximately 3h 17m, arriving at Washington Dulles Intl. Airport (IAD) at approximately 11:22AM UTC-5.
How long does it take to fly from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
The average flight time from AUS to IAD is 3 hours and 12 minutes, covering a total distance of 1,300 mi.
What airline has the least delays from AUS to IAD?
Frontier Airlines has the best track record for on-time direct flights from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD), with an on-time rating of 100%. Use the Expedia App to look up your flight schedule before you head off and receive notifications about any trip changes.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Austin-Bergstrom Intl. Airport (AUS)?
Come in for landing at any of these Washington airports after your direct flight from Austin-Bergstrom Intl. Airport (AUS):

  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)
  • Ronald Reagan Washington National Airport (DCA)

Is it cheaper to buy a plane ticket from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from AUS to IAD are usually more expensive. To secure the cheapest rates, start looking for flights as early as possible. That being said, if your travel plans are flexible, it's possible to score a cheap ticket just before your departure.
Is it cheaper to book an AUS to IAD flight and hotel package?
You'll typically save money by booking an AUS to IAD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Washington Dulles Intl. Airport (IAD)?
Usually, it's possible to reschedule or cancel your AUS to IAD flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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