Dulles Intl

$137+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — IAD
May 9 — May 161
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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 86 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 April 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Wed 5/132:03 pm
AUS
-
IAD
1 stop19h 09m
Frontier
Sat 5/165:26 pm
IAD
-
AUS
2 stops27h 52m
Frontier
Deal found 4/6$234
This Expedia deal was found by Cheapflights users on 4/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:40 pm
AUS
-
IAD
1 stop5h 56m
Frontier
Sun 4/266:20 am
IAD
-
AUS
1 stop11h 25m
Frontier
Deal found 4/4$235
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Fri 5/298:26 am
AUS
-
IAD
1 stop4h 52m
Allegiant Air
Mon 6/14:36 pm
IAD
-
AUS
Nonstop3h 33m
Allegiant Air
Deal found 4/6$238
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 8/104:15 pm
AUS
-
IAD
Nonstop3h 21m
Multiple Airlines
Wed 8/191:38 pm
IAD
-
AUS
2 stops22h 39m
Multiple Airlines
Deal found 4/4$240
This CheapOair deal was found by Cheapflights users on 4/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:00 pm
AUS
-
IAD
1 stop23h 42m
Frontier
Sun 6/77:27 pm
IAD
-
AUS
1 stop16h 23m
Frontier
Deal found 4/6$241
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
Fri 5/89:13 pm
AUS
-
IAD
2 stops18h 08m
Multiple Airlines
Fri 5/294:36 pm
IAD
-
AUS
Nonstop3h 33m
Multiple Airlines
Deal found 4/5$242
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Wed 8/121:59 pm
AUS
-
IAD
1 stop8h 18m
Multiple Airlines
Sun 8/1612:50 pm
IAD
-
AUS
2 stops22h 19m
Multiple Airlines
Deal found 4/4$244
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Fri 5/2210:59 am
AUS
-
IAD
2 stops23h 22m
Multiple Airlines
Tue 5/267:45 am
IAD
-
AUS
1 stop10h 07m
Multiple Airlines
Deal found 4/4$245
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/45:53 pm
AUS
-
IAD
1 stop15h 19m
Frontier
Sun 5/105:26 pm
IAD
-
AUS
1 stop20h 38m
Frontier
Deal found 4/6$246
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 5/1612:44 pm
AUS
-
IAD
1 stop9h 25m
Frontier
Wed 5/207:40 am
IAD
-
AUS
2 stops27h 03m
Frontier
Deal found 4/4$247
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/149:13 pm
AUS
-
IAD
2 stops18h 59m
Frontier
Sun 5/177:27 pm
IAD
-
AUS
1 stop16h 06m
Frontier
Deal found 4/6$248
This Booking.com deal was found by Cheapflights users on 4/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/221:59 pm
AUS
-
IAD
1 stop8h 10m
Multiple Airlines
Mon 6/14:36 pm
IAD
-
AUS
Nonstop3h 33m
Multiple Airlines
Deal found 4/6$249

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 April 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$234
(Kiwi.com)

One-way from

$137
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$535

Good round-trip deal

$448 or less

Good one-way deal

$288 or less
Provider with most accurate pricing for Austin Bergstrom-Washington, D.C. Dulles Intl flight deals.
Provider most trusted by Cheapflights users for Austin Bergstrom-Washington, D.C. Dulles Intl flights.
From Austin Bergstrom to Washington, D.C. Dulles Intl
One-way flight from Austin Bergstrom to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 17% potential increase in price ($106 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Austin Bergstrom to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Austin Bergstrom to Washington, D.C. Dulles Intl.

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 April 9, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Tue 5/19

2:15 pm-8:56 pm

1 stop5h 41m

Washington, D.C. Dulles Intl

Wed 5/27

1:10 pm-3:37 pm

Nonstop3h 27m

$407

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Tue 5/12

12:15 pm-4:30 pm

Nonstop3h 15m

Washington, D.C. Dulles Intl

Sat 5/16

5:38 pm-11:15 pm

1 stop6h 37m

$418

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 5/9

7:15 am-11:31 am

Nonstop3h 16m

Washington, D.C. Dulles Intl

Tue 5/12

6:00 am-1:09 pm

1 stop8h 09m

$418

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 5/2

7:15 am-11:31 am

Nonstop3h 16m

Washington, D.C. Dulles Intl

Mon 5/11

5:55 pm-8:43 pm

Nonstop3h 48m

$419

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 5/23

7:15 am-11:33 am

Nonstop3h 18m

Washington, D.C. Dulles Intl

Tue 6/2

12:50 pm-7:57 pm

1 stop8h 07m

$438

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 6/17

2:18 pm-8:46 pm

1 stop5h 28m

Washington, D.C. Dulles Intl

Thu 6/25

8:30 am-10:56 am

Nonstop3h 26m

$473

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 6/3

5:25 am-11:39 am

1 stop5h 14m

Washington, D.C. Dulles Intl

Sun 6/7

5:21 pm-10:11 pm

1 stop5h 50m

$485

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Fri 5/1

8:45 am-5:30 pm

1 stop7h 45m

Washington, D.C. Dulles Intl

Wed 5/6

12:55 pm-3:41 pm

Nonstop3h 46m

$485
Quickest round-trip

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 5/13

7:15 am-11:31 am

Nonstop3h 16m

Washington, D.C. Dulles Intl

Mon 5/18

8:24 am-11:09 am

Nonstop3h 45m

$498

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Tue 6/2

4:10 pm-10:44 pm

1 stop5h 34m

Washington, D.C. Dulles Intl

Sat 6/6

8:30 am-11:01 am

Nonstop3h 31m

$508

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

Showing 1-10 of 22 resultsSorted by cheapest first
1
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3

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 April.
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

*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 April 3, 2026.

Booking 86 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 $102). 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 April 9, 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.

How much does it cost to fly round-trip from Austin to Washington, D.C. Dulles Intl Airport?

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.

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 April 9, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAllegiant 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.

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

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.

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

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.

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

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.

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

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.

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

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.

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

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 5 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 United Airlines fly from Austin to Washington, D.C. Dulles Intl Airport in about 5h 41m. The time it takes to get you to your destination can typically vary by up to . Austin and Washington, D.C. Dulles Intl Airport are separated by a distance of 1295 mi.

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

    Allegiant Air, at $90, 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 ($132).

  • 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 Mesa Airlines (100%), Brussels Airlines (90%) and United Airlines (87%).

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

    On average you can expect to pay $1,146 for a flight from Austin to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $100 while the most popular route, (Austin Bergstrom - Washington, D.C. Dulles Intl) is currently priced at $124.

  • 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 $102). 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
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Largo
Bowie
Clinton
Towson
Cordova
Manassas
Falls Church

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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 April 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$155FlexibilityNo cancel feeOn-time88%
DeltaCheapest$118Average$398FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$141Average$207FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$210Average$436FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$276Average$508FlexibilityNo cancel feeOn-time69%

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