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$122+ Cheap flights from Dulles Intl (IAD) to Austin (AUS)

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — AUS
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Find cheap flights from Dulles Intl to Austin with Cheapflights

1. Tell us where you want to go

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2. Select your favorite providers

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Austin Bergstrom are usually found in August or July, booked 90 days in advance, depart on a Friday or Wednesday and return on a Friday

Cheap flight deals from Dulles Intl to Austin

Cheapest flights from Dulles Intl to Austin
Explore the most affordable flight options available from Dulles Intl to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/196:30 am
IAD
-
AUS
1 stop9h 45m
Multiple Airlines
Sun 3/228:36 pm
AUS
-
IAD
2 stops16h 42m
Multiple Airlines
Deal found 2/1$275
This Expedia deal was found by Cheapflights users on 2/1. 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.
Tue 3/37:05 am
IAD
-
AUS
2 stops16h 24m
Multiple Airlines
Tue 3/104:14 pm
AUS
-
IAD
1 stop7h 17m
Multiple Airlines
Deal found 2/1$277
This Frontier deal was found by Cheapflights users on 2/1. 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.
Sun 3/86:25 am
IAD
-
AUS
1 stop9h 50m
Frontier
Thu 3/124:14 pm
AUS
-
IAD
1 stop7h 17m
Frontier
Deal found 2/1$278
This Expedia deal was found by Cheapflights users on 1/31. 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.
Sun 4/126:00 am
IAD
-
AUS
1 stop10h 12m
Frontier
Fri 4/175:40 pm
AUS
-
IAD
1 stop5h 56m
Frontier
Deal found 1/31$280
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/88:09 am
IAD
-
AUS
1 stop8h 55m
Multiple Airlines
Sun 3/88:36 pm
AUS
-
IAD
2 stops16h 42m
Multiple Airlines
Deal found 2/2$281
This Trip.com deal was found by Cheapflights users on 2/2. 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.
Fri 3/136:20 am
IAD
-
AUS
1 stop9h 56m
Frontier
Mon 3/164:14 pm
AUS
-
IAD
1 stop7h 17m
Frontier
Deal found 2/2$283
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/279:45 pm
IAD
-
AUS
2 stops27h 39m
Multiple Airlines
Thu 4/24:14 pm
AUS
-
IAD
1 stop7h 22m
Multiple Airlines
Deal found 2/2$284
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/279:45 pm
IAD
-
AUS
2 stops19h 19m
Multiple Airlines
Sun 3/298:36 pm
AUS
-
IAD
1 stop9h 48m
Multiple Airlines
Deal found 2/1$285
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 2/62:58 pm
IAD
-
AUS
2 stops20h 23m
Multiple Airlines
Fri 2/209:59 am
AUS
-
IAD
1 stop6h 14m
Multiple Airlines
Deal found 2/1$286
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/206:20 am
IAD
-
AUS
1 stop9h 56m
Multiple Airlines
Mon 3/236:12 am
AUS
-
IAD
2 stops17h 19m
Multiple Airlines
Deal found 2/1$287
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 5/136:20 am
IAD
-
AUS
2 stops16h 15m
Multiple Airlines
Sat 5/165:40 pm
AUS
-
IAD
1 stop5h 56m
Multiple Airlines
Deal found 2/2$288
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/266:25 am
IAD
-
AUS
2 stops18h 59m
Multiple Airlines
Sun 3/298:36 pm
AUS
-
IAD
1 stop9h 48m
Multiple Airlines
Deal found 2/2$289

Find flight deals from Dulles Intl to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Austin (AUS). 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 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$275
(Kiwi.com)

One-way from

$122
(Expedia)

Popular in

January

Cheapest in

August

Average price

$549

Good round-trip deal

$485 or less

Good one-way deal

$244 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Austin Bergstrom flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Austin Bergstrom flights.
Search Deals
From Washington, D.C. Dulles Intl to Austin Bergstrom
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Austin Bergstrom
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 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 Washington, D.C. Dulles Intl to Austin Bergstrom.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Austin Bergstrom.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Austin 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 3, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Austin that are best for you.

Fly from

Dulles Intl

Fly to

Austin

Route

Depart

Return

Price

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 4/15

8:23 am-11:08 am

Nonstop3h 45m

Austin Bergstrom

Mon 4/20

7:15 am-11:31 am

Nonstop3h 16m

$412

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Mon 2/23

6:20 pm-7:15 pm

1 stop25h 55m

Austin Bergstrom

Wed 2/25

6:00 am-5:27 pm

1 stop10h 27m

$413

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Tue 3/3

6:20 pm-1:28 pm

1 stop20h 08m

Austin Bergstrom

Wed 3/4

4:30 pm-5:27 pm

1 stop23h 57m

$423

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sat 4/11

12:50 pm-3:49 pm

Nonstop3h 59m

Austin Bergstrom

Mon 4/13

4:57 pm-9:13 pm

Nonstop3h 16m

$427

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 4/30

10:11 am-4:00 pm

1 stop6h 49m

Austin Bergstrom

Mon 5/4

8:00 am-4:15 pm

1 stop7h 15m

$433

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sat 5/2

5:15 pm-10:44 pm

1 stop6h 29m

Austin Bergstrom

Tue 5/5

4:57 pm-9:13 pm

Nonstop3h 16m

$437

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sun 3/1

6:20 pm-10:29 pm

1 stop29h 09m

Austin Bergstrom

Wed 3/4

6:00 am-5:27 pm

1 stop10h 27m

$438

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Fri 2/27

6:20 pm-1:28 pm

1 stop20h 08m

Austin Bergstrom

Mon 3/2

7:55 pm-5:27 pm

1 stop20h 32m

$438

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 4/2

8:23 am-11:08 am

Nonstop3h 45m

Austin Bergstrom

Tue 4/7

12:14 pm-4:30 pm

Nonstop3h 16m

$443

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 4/30

10:11 am-4:00 pm

1 stop6h 49m

Austin Bergstrom

Sun 5/3

4:46 pm-11:03 pm

1 stop5h 17m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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

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 Dulles Intl to Austin in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
MytripPrice Accuracy2 starsTrust Score*3 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 Washington, D.C. Dulles Intl Airport-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Austin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Austin 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 Washington, D.C. Dulles Intl Airport-Austin 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 Dulles Intl to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Austin

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Austin. Price data was last updated on January 30, 2026.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Austin, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Austin (average of $94). Flying from Washington, D.C. Dulles Intl Airport to Austin in February is currently the most expensive (average of $249). 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 IAD to AUS?

Find hourly flight availability from Dulles Intl to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2026.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Austin is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 9% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Austin?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Austin. Price data was last updated on January 31, 2026.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Austin flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated February 3, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Washington, D.C. Dulles Intl Airport to Austin 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
8,138 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

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
8,138 reviews
Delta
7.9
Good
8,138 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

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
9,236 reviews
Delta
7.9
Good
8,138 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

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
11,218 reviews
Delta
7.9
Good
8,138 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

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
7.2
Good
709 reviews
Delta
7.9
Good
8,138 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

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
3,051 reviews
Delta
7.9
Good
8,138 reviews

Overall

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

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 Dulles Intl to Austin. 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 into for flights to Austin from Washington, D.C. Dulles Intl?

    If you book a flight to Austin from Washington, D.C. Dulles Intl, you will be flying to Austin Bergstrom, which is the city’s only airport. Austin Bergstrom (AUS) is located 7.5 mi from the center of Austin. There are 3 flights from Washington, D.C. Dulles Intl to Austin Bergstrom per day from 5 different airlines.

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

    A quick flight from Washington, D.C. Dulles Intl Airport to Austin can take about 3h 45m. United Airlines provides one of the quickest options available for as low as $412. There are 1295 mi between Washington, D.C. Dulles Intl Airport and Austin. 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 Washington, D.C. Dulles Intl Airport to Austin round-trip?

    Currently priced at $88, Allegiant Air will fly you from Washington, D.C. Dulles Intl Airport to Austin and back. In addition to Allegiant Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and American Airlines - these airlines can fly you to your destination from $135 and $184, respectively. 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 Washington, D.C. Dulles Intl Airport to Austin one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Austin are Frontier ($66), Allegiant Air ($70), and Delta ($93).

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

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Austin are Mesa Airlines (95%), United Airlines (83%) and Brussels Airlines (70%).

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

    Looking at all options, your cheapest flight can be booked for $198. While the most popular route (Washington, D.C. Dulles Intl - Austin Bergstrom) can be booked for $169 on average, our data indicates $770 when flying from Washington, D.C. Dulles Intl Airport to Austin.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Austin 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 Washington, D.C. Dulles Intl Airport to Austin?

    Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Austin (average of $94). Flying from Washington, D.C. Dulles Intl Airport to Austin in February is currently the most expensive (average of $249). 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 Austin?

Book flights to Austin if you plan to visit one of these locations
Cedar Park
Fredericksburg
Round Rock
San Marcos
Georgetown
Pflugerville
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay

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Alternative routes for Dulles Intl to Austin

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

Discover the top 5 airlines that operate flights from Dulles Intl to Austin. 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 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$88Average$188FlexibilityNo cancel feeOn-time88%
FrontierCheapest$135Average$231FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$184Average$396FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$389FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$264Average$505FlexibilityNo cancel feeOn-time69%

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.