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$126+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — AUS
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
1 adult, Economy
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1. Tell us where you want to go

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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 85 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 May 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Wed 7/158:33 pm
IAD
-
AUS
1 stop21h 06m
Multiple Airlines
Mon 7/203:52 pm
AUS
-
IAD
Nonstop3h 21m
Multiple Airlines
Deal found 5/19$204
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Wed 6/1011:17 am
IAD
-
AUS
2 stops33h 13m
Frontier
Tue 6/165:38 pm
AUS
-
IAD
1 stop15h 44m
Frontier
Deal found 5/17$210
This Cheapflightsfares deal was found by Cheapflights users on 5/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:30 pm
IAD
-
AUS
Nonstop3h 16m
Allegiant Air
Mon 7/273:52 pm
AUS
-
IAD
Nonstop3h 21m
Allegiant Air
Deal found 5/17$211
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 7/104:30 pm
IAD
-
AUS
Nonstop3h 16m
Multiple Airlines
Fri 8/71:40 pm
AUS
-
IAD
1 stop25h 11m
Multiple Airlines
Deal found 5/18$213
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/194:46 pm
IAD
-
AUS
Nonstop3h 15m
Allegiant Air
Mon 7/133:52 pm
AUS
-
IAD
Nonstop3h 21m
Allegiant Air
Deal found 5/18$215
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Mon 6/84:27 pm
IAD
-
AUS
Nonstop3h 15m
Multiple Airlines
Tue 6/165:38 pm
AUS
-
IAD
1 stop15h 44m
Multiple Airlines
Deal found 5/17$216
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 8/47:49 am
IAD
-
AUS
1 stop9h 50m
Frontier
Wed 8/121:51 pm
AUS
-
IAD
1 stop19h 22m
Frontier
Deal found 5/15$218
This Booking.com deal was found by Cheapflights users on 5/15. 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.
Tue 7/711:17 am
IAD
-
AUS
1 stop6h 22m
Multiple Airlines
Mon 7/133:52 pm
AUS
-
IAD
Nonstop3h 21m
Multiple Airlines
Deal found 5/15$219
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:30 pm
IAD
-
AUS
Nonstop3h 16m
Allegiant Air
Mon 7/273:52 pm
AUS
-
IAD
Nonstop3h 21m
Allegiant Air
Deal found 5/18$220
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Sat 10/247:00 am
IAD
-
AUS
2 stops17h 59m
Frontier
Tue 10/2710:50 am
AUS
-
IAD
1 stop5h 46m
Frontier
Deal found 5/19$223
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Tue 6/911:17 am
IAD
-
AUS
2 stops37h 42m
Frontier
Mon 6/151:40 pm
AUS
-
IAD
1 stop19h 42m
Frontier
Deal found 5/17$224
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Mon 7/64:30 pm
IAD
-
AUS
Nonstop3h 16m
Multiple Airlines
Wed 7/81:51 pm
AUS
-
IAD
1 stop8h 22m
Multiple Airlines
Deal found 5/20$225

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 May 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$204
(Kiwi.com)

One-way from

$126
(Super.com)

Popular in

March

Cheapest in

August

Average price

$489

Good round-trip deal

$503 or less

Good one-way deal

$157 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. 16% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 20, 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
Quickest round-trip

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 8/5

8:30 am-10:56 am

Nonstop3h 26m

Austin Bergstrom

Sat 8/15

7:15 am-11:29 am

Nonstop3h 14m

$436

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sat 6/13

8:30 am-11:01 am

Nonstop3h 31m

Austin Bergstrom

Wed 6/17

12:00 pm-4:19 pm

Nonstop3h 19m

$475

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Tue 6/16

8:30 am-10:56 am

Nonstop3h 26m

Austin Bergstrom

Thu 6/18

5:30 am-11:28 am

1 stop4h 58m

$485

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sat 6/27

8:30 am-11:01 am

Nonstop3h 31m

Austin Bergstrom

Wed 7/1

6:04 pm-12:31 am

1 stop5h 27m

$518

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sun 6/21

8:30 am-10:56 am

Nonstop3h 26m

Austin Bergstrom

Tue 6/30

5:00 pm-9:19 pm

Nonstop3h 19m

$529

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sat 6/13

6:00 pm-8:35 pm

Nonstop3h 35m

Austin Bergstrom

Sat 6/20

7:30 am-11:48 am

Nonstop3h 18m

$533

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 6/11

6:30 am-11:19 am

1 stop5h 49m

Austin Bergstrom

Sat 6/13

7:30 am-11:48 am

Nonstop3h 18m

$543

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 6/25

6:00 pm-8:35 pm

Nonstop3h 35m

Austin Bergstrom

Thu 7/2

5:20 pm-12:45 am

1 stop6h 25m

$543

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Fri 7/10

6:00 pm-8:35 pm

Nonstop3h 35m

Austin Bergstrom

Tue 7/14

5:00 pm-9:19 pm

Nonstop3h 19m

$565

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 7/9

8:30 am-10:56 am

Nonstop3h 26m

Austin Bergstrom

Tue 7/14

12:00 pm-4:20 pm

Nonstop3h 20m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Showing 1-10 of 23 resultsSorted by cheapest first
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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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
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?

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 84 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Austin (average of $350). Flying from Washington, D.C. Dulles Intl Airport to Austin in March is currently the most expensive (average of $623). 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 May 20, 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 7% 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 May 16, 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?

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 May 20, 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
8,452 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,452 reviews
Delta
7.9
Good
8,452 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,739 reviews
Delta
7.9
Good
8,452 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Allegiant Air
7.3
Good
709 reviews
Delta
7.9
Good
8,452 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,643 reviews
Delta
7.9
Good
8,452 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Frontier
5.7
Fair
2,945 reviews
Delta
7.9
Good
8,452 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 2 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 26m. United Airlines provides one of the quickest options available for as low as $436. There are 1295 mi between Washington, D.C. Dulles Intl Airport and Austin. Most flights are nonstop.

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

    Currently priced at $92, 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 $149 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 ($71), American Airlines ($79), and Allegiant Air ($84).

  • 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 Republic Airways (100%), ITA Airways (88%) and Brussels Airlines (83%).

  • 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 $102. While the most popular route (Washington, D.C. Dulles Intl - Austin Bergstrom) can be booked for $182 on average, our data indicates $749 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Austin (average of $350). Flying from Washington, D.C. Dulles Intl Airport to Austin in March is currently the most expensive (average of $623). 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
Round Rock
San Marcos
Bastrop
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
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 May 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$92Average$199FlexibilityNo cancel feeOn-time88%
FrontierCheapest$149Average$224FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$184Average$375FlexibilityNo cancel feeOn-time71%
DeltaCheapest$213Average$409FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$273Average$556FlexibilityNo cancel feeOn-time69%

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