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Dulles Intl

$141+ Cheap flights from Austin (AUS) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — IAD
Mar 24 — Mar 311
Tue 3/24
Tue 3/31
1 adult, Economy
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Find cheap flights from Austin to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Austin Bergstrom to Washington, D.C. Dulles Intl are usually found in August or June, booked 65 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Austin to Dulles Intl

Cheapest flights from Austin to Dulles Intl
Explore the most affordable flight options available from Austin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:16 pm
AUS
-
IAD
1 stop10h 08m
Multiple Airlines
Mon 3/309:45 pm
IAD
-
AUS
2 stops27h 39m
Multiple Airlines
Deal found 2/17$224
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/198:36 pm
AUS
-
IAD
1 stop9h 48m
Frontier
Mon 3/236:20 am
IAD
-
AUS
1 stop9h 56m
Frontier
Deal found 2/20$227
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:14 pm
AUS
-
IAD
1 stop7h 22m
Multiple Airlines
Thu 4/912:18 pm
IAD
-
AUS
1 stop7h 59m
Multiple Airlines
Deal found 2/19$228
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/54:35 pm
AUS
-
IAD
2 stops13h 49m
Frontier
Sun 3/88:09 am
IAD
-
AUS
1 stop26h 27m
Frontier
Deal found 2/19$229
This Frontier deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:13 pm
AUS
-
IAD
1 stop7h 18m
Frontier
Tue 3/177:00 am
IAD
-
AUS
1 stop9h 16m
Frontier
Deal found 2/19$230
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:36 pm
AUS
-
IAD
2 stops16h 42m
Multiple Airlines
Wed 3/116:20 am
IAD
-
AUS
1 stop9h 56m
Multiple Airlines
Deal found 2/17$232
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/54:59 pm
AUS
-
IAD
1 stop13h 25m
Multiple Airlines
Sun 3/88:09 am
IAD
-
AUS
1 stop26h 27m
Multiple Airlines
Deal found 2/19$233
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/216:12 am
AUS
-
IAD
2 stops17h 19m
Multiple Airlines
Tue 3/247:00 am
IAD
-
AUS
1 stop9h 16m
Multiple Airlines
Deal found 2/20$234
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:30 am
AUS
-
IAD
2 stops24h 26m
Frontier
Sat 5/1610:51 am
IAD
-
AUS
1 stop6h 54m
Frontier
Deal found 2/17$235
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/94:14 pm
AUS
-
IAD
1 stop7h 17m
Frontier
Wed 3/186:20 am
IAD
-
AUS
1 stop9h 56m
Frontier
Deal found 2/19$236
This Trip.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:14 pm
AUS
-
IAD
1 stop7h 17m
Frontier
Mon 3/166:20 am
IAD
-
AUS
1 stop9h 56m
Frontier
Deal found 2/17$237

Find flight deals from Austin to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$224
(Kiwi.com)

One-way from

$141
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$592

Good round-trip deal

$509 or less

Good one-way deal

$261 or less
Provider with most accurate pricing for Austin Bergstrom-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Washington, D.C. Dulles Intl flights.
Search Deals
From Austin Bergstrom to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Austin Bergstrom to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Austin Bergstrom to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Austin Bergstrom to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2026.
Use the filters below to find and compare flights from Austin to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Austin

Fly to

Dulles Intl

Route

Depart

Return

Price

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 3/12

8:36 pm-2:18 pm

2 stops16h 42m

Washington, D.C. Dulles Intl

Mon 3/16

6:20 am-3:16 pm

1 stop9h 56m

$237

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 3/26

8:16 pm-7:24 am

1 stop10h 08m

Washington, D.C. Dulles Intl

Tue 3/31

6:20 am-3:16 pm

1 stop9h 56m

$264

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Mon 3/23

4:14 pm-12:31 am

1 stop7h 17m

Washington, D.C. Dulles Intl

Thu 3/26

6:25 am-3:15 pm

1 stop9h 50m

$284

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Tue 3/24

6:30 am-6:33 pm

1 stop11h 03m

Washington, D.C. Dulles Intl

Mon 3/30

5:32 pm-10:44 pm

1 stop6h 12m

$410

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 3/18

7:15 am-5:20 pm

1 stop9h 05m

Washington, D.C. Dulles Intl

Wed 3/25

5:50 am-1:45 pm

1 stop8h 55m

$417

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 4/1

7:10 am-4:22 pm

1 stop8h 12m

Washington, D.C. Dulles Intl

Sat 4/11

8:23 am-11:08 am

Nonstop3h 45m

$422

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 5/9

7:15 am-11:31 am

Nonstop3h 16m

Washington, D.C. Dulles Intl

Sat 5/16

12:55 pm-3:43 pm

Nonstop3h 48m

$427

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 3/26

5:33 pm-11:59 pm

1 stop5h 26m

Washington, D.C. Dulles Intl

Mon 3/30

8:23 am-11:08 am

Nonstop3h 45m

$437

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Mon 4/27

7:15 am-11:31 am

Nonstop3h 16m

Washington, D.C. Dulles Intl

Thu 4/30

8:30 am-1:09 pm

1 stop5h 39m

$437

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Mon 3/23

6:39 pm-9:10 am

1 stop13h 31m

Washington, D.C. Dulles Intl

Mon 3/30

7:29 pm-12:20 am

1 stop5h 51m

$440

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 21 results
1
2
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Compare providers for flights from Austin to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Dulles Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Austin-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Austin to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Austin to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Austin to Dulles Intl. Price data was last updated on February 20, 2026.

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Austin to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Austin to Washington, D.C. Dulles Intl Airport?

Currently, June is the cheapest month in which you can book a flight from Austin to Washington, D.C. Dulles Intl Airport (average of $109). Flying from Austin to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $329). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AUS to IAD?

Find hourly flight availability from Austin to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2026.

A simple way to save on the total cost of your ticket is to fly from Austin to Washington, D.C. Dulles Intl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 43% on your trip compared to booking a flight at noon.

The best insider tips for Austin to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Austin to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD and AUS

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated February 22, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and Allegiant Air from Austin to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,241 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,241 reviews
Delta
7.9
Good
8,241 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,341 reviews
Delta
7.9
Good
8,241 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.3
Good
711 reviews
Delta
7.9
Good
8,241 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,338 reviews
Delta
7.9
Good
8,241 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,045 reviews
Delta
7.9
Good
8,241 reviews

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Austin to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Austin to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Austin, you will be flying from Austin Bergstrom, which is the city’s only airport. Austin Bergstrom (AUS) is located 7.5 mi from the center of Austin. There are 4 flights from Austin Bergstrom to Washington, D.C. Dulles Intl per day from 5 different airlines.

  • How long is the flight from Austin to Washington, D.C. Dulles Intl Airport?

    Airlines like Frontier, Delta, and Southwest fly from Austin to Washington, D.C. Dulles Intl Airport in about 9h 05m. The time it takes to get you to your destination can typically vary by up to 1h 58m. Austin and Washington, D.C. Dulles Intl Airport are separated by a distance of 1295 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Austin to Washington, D.C. Dulles Intl Airport round-trip?

    Allegiant Air, at $92, was found to be the cheapest airline from Austin to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Delta and Frontier. Allegiant Air is priced at 81% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Austin to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Austin to Washington, D.C. Dulles Intl Airport are Frontier ($75), Allegiant Air ($75), and American Airlines ($118).

  • What are the most reliable airlines from Austin to Washington, D.C. Dulles Intl Airport?

    The top 3 most reliable airlines when flying from Austin to Washington, D.C. Dulles Intl Airport are Brussels Airlines (93%), Mesa Airlines (93%) and Lufthansa (85%).

  • What are the cheapest flights from Austin to Washington, D.C. Dulles Intl Airport?

    On average you can expect to pay $1,018 for a flight from Austin to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $203 while the most popular route, (Austin Bergstrom - Washington, D.C. Dulles Intl) is currently priced at $154.

  • Can I find deals for flights from Austin to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Austin to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Dulles Intl.

  • Can I find deals for business class flights from Austin to Dulles Intl?

    Yes. Cheapflights offers flight deals from Austin to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Austin to Washington, D.C. Dulles Intl Airport?

    Currently, June is the cheapest month in which you can book a flight from Austin to Washington, D.C. Dulles Intl Airport (average of $109). Flying from Austin to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $329). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Fredericksburg
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Manassas
Bowie
Largo
Clinton
Towson

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Austin to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Austin to Dulles Intl

Discover the top 5 airlines that operate flights from Austin to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$92Average$161FlexibilityNo cancel feeOn-time88%
DeltaCheapest$118Average$393FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$130Average$201FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$210Average$431FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$274Average$499FlexibilityNo cancel feeOn-time69%

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