Austin

$109+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — AUS
Jul 23 — Jul 301
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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 87 days in advance, depart on a Friday or Saturday 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 July 18, 2025.

Round-trip from

$181
(Cheapflightsfares)

One-way from

$109
(United Airlines)

Popular in

January

Cheapest in

August

Average price

$358

Good round-trip deal

$276 or less

Good one-way deal

$159 or less
From Washington, D.C. Dulles Intl to Austin Bergstrom
One-way flight from Washington, D.C. Dulles Intl to Austin Bergstrom
Highest demand for flights based on searches. 12% potential increase in price ($66 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Austin Bergstrom.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Austin Bergstrom.

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 July 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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 8/410:13 amIAD - AUS
Nonstop3h 19mAllegiant Air
Mon 8/1111:47 amAUS - IAD
Nonstop3h 09mAllegiant Air
Deal found 7/17$181
This United Airlines deal was found by Cheapflights users on 7/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/118:45 amIAD - AUS
Nonstop3h 24mUnited Airlines
Thu 8/1412:11 pmAUS - IAD
Nonstop3h 16mUnited Airlines
Deal found 7/17$197
This American Airlines deal was found by Cheapflights users on 7/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:51 amIAD - AUS
1 stop7h 55mAmerican Airlines
Sat 9/64:54 pmAUS - IAD
1 stop4h 54mAmerican Airlines
Deal found 7/16$218
This Frontier deal was found by Cheapflights users on 7/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/316:10 amIAD - AUS
1 stop11h 36mFrontier
Mon 8/45:31 pmAUS - IAD
1 stop5h 41mFrontier
Deal found 7/17$228
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/131:00 pmIAD - AUS
1 stop6h 20mDelta
Sat 8/165:35 amAUS - IAD
1 stop4h 48mDelta
Deal found 7/17$237
This Mytrip deal was found by Cheapflights users on 7/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/410:13 amIAD - AUS
Nonstop3h 19mMultiple Airlines
Mon 8/115:42 pmAUS - IAD
2 stops16h 44mMultiple Airlines
Deal found 7/15$252

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 July 18, 2025.
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

Mon 8/4

10:13 am-12:32 pm

Nonstop3h 19m

Austin Bergstrom

Mon 8/11

11:47 am-3:56 pm

Nonstop3h 09m

$181

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Mon 8/11

8:45 am-11:09 am

Nonstop3h 24m

Austin Bergstrom

Thu 8/14

12:11 pm-4:27 pm

Nonstop3h 16m

$197

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sat 8/30

11:51 am-6:46 pm

1 stop7h 55m

Austin Bergstrom

Sat 9/6

4:54 pm-10:48 pm

1 stop4h 54m

$218

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 7/31

6:10 am-4:46 pm

1 stop11h 36m

Austin Bergstrom

Mon 8/4

5:31 pm-12:12 am

1 stop5h 41m

$228

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 8/13

1:00 pm-6:20 pm

1 stop6h 20m

Austin Bergstrom

Sat 8/16

5:35 am-11:23 am

1 stop4h 48m

$237

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Mon 8/4

10:13 am-12:32 pm

Nonstop3h 19m

Austin Bergstrom

Mon 8/11

5:42 pm-11:26 am

2 stops16h 44m

$252

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Mon 9/15

4:10 pm-10:53 pm

1 stop7h 43m

$109

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Sat 8/16

6:34 am-1:43 pm

2 stops8h 09m

$114

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 8/7

6:00 am-10:59 am

1 stop5h 59m

$119

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Mon 8/4

10:13 am-12:32 pm

Nonstop3h 19m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 12 results
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The best insider tips for Washington, D.C. Dulles Intl Airport to Austin flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Austin trip
Airports
IAD

For quick check-in at IAD, arrive early as afternoon and evening hours can be crowded with passengers.

Read more about IADby Ramsey Qubein
AUS

At AUS, use rideshare or taxis for quick city access. CapMetro buses are cheaper but make many stops.

Read more about AUSby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD and AUS

Ramsey Qubein

Ramsey Qubein

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

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 July 11, 2025.

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 87 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Austin (average of $286). Flying from Washington, D.C. Dulles Intl Airport to Austin in March is currently the most expensive (average of $362). 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 July 18, 2025.

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 41% 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 July 13, 2025.

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

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Austin

Explore weekly flight availability from Dulles Intl to Austin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 18, 2025.

The most flights from IAD to AUS are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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 July 18, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United 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.

Overall

8.0

Entertainment

7.6

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Overall

8.0

Entertainment

7.6

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
8.0
Very good

Overall

8.0

Entertainment

7.6

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Overall

8.0

Entertainment

7.6

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Overall

8.0

Entertainment

7.6

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Overall

8.0

Entertainment

7.6

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 6 different airlines.

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

    Currently priced at $181, 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 United Airlines and American Airlines - these airlines can fly you to your destination from $197 and $217, respectively. Allegiant Air is priced at 62% 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 United Airlines ($109), American Airlines ($114), and Delta ($119).

  • 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 Allegiant Air (88%), Republic Airways (83%) and Lufthansa (71%).

  • 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 $105. While the most popular route (Washington, D.C. Dulles Intl - Austin Bergstrom) can be booked for $170 on average our data indicates $587 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Austin (average of $286). Flying from Washington, D.C. Dulles Intl Airport to Austin in March is currently the most expensive (average of $362). 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
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Bastrop
Round Rock
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.

Top 6 airlines flying from Dulles Intl to Austin

Discover the top 6 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 July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$191FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$115Average$197FlexibilityNo cancel feeOn-time88%
DeltaCheapest$222Average$378FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$255Average$422FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$283Average$523FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$447Average$540FlexibilityNo cancel feeOn-time63%

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