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Cheap flights from Dulles Intl (IAD) to Austin (AUS) - Compare and Save

IAD — AUS
May 3 — May 101
Sun 5/3
Sun 5/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Austin Bergstrom are usually found in August or July, booked 61 days in advance, depart on a Friday or Wednesday and return on a Friday

Cheap 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 April 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$272
(Kiwi.com)

One-way from

$149
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$503

Good round-trip deal

$481 or less

Good one-way deal

$249 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Austin Bergstrom flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Austin Bergstrom flights.
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From Washington, D.C. Dulles Intl to Austin Bergstrom
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One-way flight from Washington, D.C. Dulles Intl to Austin Bergstrom
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Highest demand for flights based on searches. 15% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in April 2026
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Austin Bergstrom.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Austin Bergstrom.
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Find 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 April 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/3. 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 5/297:45 am
IAD
-
AUS
2 stops13h 33m
Multiple Airlines
Mon 6/18:26 am
AUS
-
IAD
1 stop4h 52m
Multiple Airlines
Deal found 4/3$271
This Kiwi.com deal was found by Cheapflights users on 4/2. 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 4/246:00 am
IAD
-
AUS
1 stop12h 16m
Frontier
Sat 4/256:02 pm
AUS
-
IAD
2 stops15h 20m
Frontier
Deal found 4/2$272
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 5/36:20 am
IAD
-
AUS
1 stop11h 25m
Multiple Airlines
Thu 5/76:00 am
AUS
-
IAD
2 stops16h 09m
Multiple Airlines
Deal found 4/3$274
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 5/37:11 pm
IAD
-
AUS
1 stop22h 57m
Frontier
Sun 5/105:47 pm
AUS
-
IAD
2 stops20h 27m
Frontier
Deal found 4/3$276
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 4/276:00 am
IAD
-
AUS
1 stop12h 08m
Frontier
Wed 4/296:13 pm
AUS
-
IAD
2 stops23h 29m
Frontier
Deal found 4/3$277
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 6/17:45 am
IAD
-
AUS
1 stop6h 19m
Frontier
Fri 6/59:13 pm
AUS
-
IAD
2 stops11h 59m
Frontier
Deal found 4/3$278
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Sun 5/105:26 pm
IAD
-
AUS
1 stop20h 38m
Frontier
Fri 5/159:13 pm
AUS
-
IAD
2 stops11h 59m
Frontier
Deal found 4/1$279
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 6/54:27 pm
IAD
-
AUS
Nonstop3h 15m
Multiple Airlines
Sun 6/79:13 pm
AUS
-
IAD
2 stops11h 59m
Multiple Airlines
Deal found 4/3$280
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:10 am
IAD
-
AUS
1 stop11h 35m
Frontier
Mon 4/275:53 pm
AUS
-
IAD
1 stop5h 43m
Frontier
Deal found 3/31$281
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/157:40 am
IAD
-
AUS
2 stops13h 38m
Frontier
Wed 8/121:59 pm
AUS
-
IAD
1 stop8h 18m
Frontier
Deal found 3/30$282
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Wed 7/157:30 am
IAD
-
AUS
1 stop6h 26m
Multiple Airlines
Fri 7/173:52 pm
AUS
-
IAD
Nonstop3h 21m
Multiple Airlines
Deal found 4/1$283
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 6/69:12 am
IAD
-
AUS
1 stop13h 35m
Multiple Airlines
Fri 6/123:57 pm
AUS
-
IAD
Nonstop3h 15m
Multiple Airlines
Deal found 3/30$284

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 April 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 5/13

5:33 pm-12:31 am

1 stop7h 58m

Austin Bergstrom

Thu 5/14

6:38 pm-12:51 am

1 stop5h 13m

$409

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Mon 6/1

6:00 pm-8:35 pm

Nonstop3h 35m

Austin Bergstrom

Thu 6/4

7:15 am-11:33 am

Nonstop3h 18m

$419

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sat 5/9

3:08 pm-8:33 pm

1 stop6h 25m

Austin Bergstrom

Thu 5/14

4:30 pm-10:56 pm

1 stop5h 26m

$450

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Fri 5/15

8:24 am-11:09 am

Nonstop3h 45m

Austin Bergstrom

Sat 5/16

7:15 am-11:31 am

Nonstop3h 16m

$464

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 4/29

6:00 am-10:57 am

1 stop5h 57m

Austin Bergstrom

Sun 5/3

5:25 am-11:42 am

1 stop5h 17m

$469

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sun 5/3

6:00 am-11:15 am

1 stop6h 15m

Austin Bergstrom

Thu 5/7

12:27 pm-9:24 pm

1 stop7h 57m

$469

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Tue 6/16

1:10 pm-3:37 pm

Nonstop3h 27m

Austin Bergstrom

Tue 6/23

5:00 pm-9:19 pm

Nonstop3h 19m

$487

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 8/12

6:00 pm-8:33 pm

Nonstop3h 33m

Austin Bergstrom

Tue 8/18

6:25 am-1:55 pm

1 stop6h 30m

$497
Quickest round-trip

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Tue 6/9

8:30 am-10:56 am

Nonstop3h 26m

Austin Bergstrom

Sun 6/14

7:15 am-11:33 am

Nonstop3h 18m

$507

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 5/13

5:55 pm-8:43 pm

Nonstop3h 48m

Austin Bergstrom

Thu 5/14

7:15 am-11:31 am

Nonstop3h 16m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 April.
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 April 2, 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 61 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 April is currently the most expensive (average of $252). 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 April 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 evening tend to be the most expensive. A flight in the morning could potentially save you up to 13% 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 March 28, 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.

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

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 April 3, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAllegiant Air 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
8,374 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

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.
Delta
7.9
Good
8,374 reviews
Delta
7.9
Good
8,374 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

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.
United Airlines
7.4
Good
9,538 reviews
Delta
7.9
Good
8,374 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

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.
Allegiant Air
7.3
Good
709 reviews
Delta
7.9
Good
8,374 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

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.
American Airlines
7.1
Good
11,552 reviews
Delta
7.9
Good
8,374 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

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.
Frontier
5.7
Fair
3,000 reviews
Delta
7.9
Good
8,374 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

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 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 4 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 35m. Delta provides one of the quickest options available for as low as $419. 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 $150 and $184, respectively. Allegiant Air is priced at 82% 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 ($71), Allegiant Air ($82), 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 Sun Country Air (100%), Mesa Airlines (100%) and United Airlines (88%).

  • 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 $146. While the most popular route (Washington, D.C. Dulles Intl - Austin Bergstrom) can be booked for $119 on average, our data indicates $1,015 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 April is currently the most expensive (average of $252). 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
San Marcos
Round Rock
Fredericksburg
Pflugerville
Georgetown
Bastrop
Dripping Springs
Seguin
Canyon Lake
Horseshoe Bay

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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 April 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$88Average$188FlexibilityNo cancel feeOn-time88%
FrontierCheapest$150Average$231FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$184Average$389FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$409FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$269Average$524FlexibilityNo cancel feeOn-time69%

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