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$135+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — AUS
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
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 39 days in advance, depart on a Thursday or Wednesday and return on a Thursday

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 16, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$271
(CheapOair)

One-way from

$135
(Mytrip)

Popular in

January

Cheapest in

August

Average price

$503

Good round-trip deal

$380 or less

Good one-way deal

$188 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
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 16, 2025.

This Frontier deal was found by Cheapflights users on 4/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/247:25 amIAD - AUS
1 stop9h 19mFrontier
Sun 6/112:28 pmAUS - IAD
1 stop9h 29mFrontier
Deal found 4/15$300
This Gotogate deal was found by Cheapflights users on 4/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/207:30 amIAD - AUS
1 stop31h 45mMultiple Airlines
Fri 6/2711:54 amAUS - IAD
Nonstop3h 10mMultiple Airlines
Deal found 4/15$302
This Mytrip deal was found by Cheapflights users on 4/15. 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.
Thu 6/269:21 amIAD - AUS
2 stops34h 00mAllegiant Air
Sun 6/298:37 amAUS - IAD
2 stops23h 46mAllegiant Air
Deal found 4/15$325
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 6/1111:50 amIAD - AUS
1 stop12h 59mAmerican Airlines
Wed 6/185:00 amAUS - IAD
1 stop11h 35mAmerican Airlines
Deal found 4/14$335
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/218:23 amIAD - AUS
Nonstop3h 38mUnited Airlines
Sun 5/257:15 amAUS - IAD
Nonstop3h 16mUnited Airlines
Deal found 4/15$337
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/75:24 pmIAD - AUS
1 stop6h 37mDelta
Wed 6/115:25 amAUS - IAD
1 stop5h 08mDelta
Deal found 4/16$357
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/105:05 amIAD - AUS
2 stops10h 10mSouthwest
Sun 5/115:05 pmAUS - IAD
1 stop7h 00mSouthwest
Deal found 4/16$406
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/156:30 amIAD - AUS
2 stops18h 08mAlaska Airlines
Tue 5/209:30 amAUS - IAD
2 stops21h 06mAlaska Airlines
Deal found 4/16$488

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 16, 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

Sat 5/24

7:25 am-3:44 pm

1 stop9h 19m

Austin Bergstrom

Sun 6/1

12:28 pm-10:57 pm

1 stop9h 29m

$300

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Fri 6/20

7:30 am-2:15 pm

1 stop31h 45m

Austin Bergstrom

Fri 6/27

11:54 am-4:04 pm

Nonstop3h 10m

$302

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 6/26

9:21 am-6:21 pm

2 stops34h 00m

Austin Bergstrom

Sun 6/29

8:37 am-9:23 am

2 stops23h 46m

$325

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 6/11

11:50 am-11:49 pm

1 stop12h 59m

Austin Bergstrom

Wed 6/18

5:00 am-5:35 pm

1 stop11h 35m

$335

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 5/21

8:23 am-11:01 am

Nonstop3h 38m

Austin Bergstrom

Sun 5/25

7:15 am-11:31 am

Nonstop3h 16m

$337

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Wed 5/7

5:24 pm-11:01 pm

1 stop6h 37m

Austin Bergstrom

Wed 6/11

5:25 am-11:33 am

1 stop5h 08m

$357

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Tue 7/15

2:05 pm-8:20 pm

1 stop7h 15m

Austin Bergstrom

Tue 7/22

1:00 pm-10:45 pm

1 stop8h 45m

$401

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 5/15

6:30 am-11:38 pm

2 stops18h 08m

Austin Bergstrom

Tue 5/20

9:30 am-7:36 am

2 stops21h 06m

$488

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Thu 7/3

5:40 pm-4:52 pm

2 stops24h 12m

$135

Washington, D.C.Austin

IAD - AUS

IADAUS

Washington, D.C. Dulles Intl

Tue 6/3

5:15 am-11:42 am

1 stop7h 27m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 17 results
1
2

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*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 Washington, D.C. Dulles Intl Airport-Austin flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Washington, D.C. Dulles Intl Airport-Austin flight deals on Cheapflights vs. Mytrip >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 Mytrip the most. Mytrip 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 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 39 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 April 16, 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 56% 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 30, 2025.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Austin flight should consider departing on Tuesday 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 April 16, 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 (4 on average).

Rainfall in Austin by month

Plan your trip to Austin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Austin ranges from 2.1 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. July is typically the driest time to visit Austin when rainfall is around 2.1 in.

Temperature in Austin by month

Plan your trip to Austin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Austin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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 16, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Washington, D.C. to Austin to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,282 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,665 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 5 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 $271, Frontier will fly you from Washington, D.C. Dulles Intl Airport to Austin and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Allegiant Air and American Airlines - these airlines can fly you to your destination from $325 and $335, respectively. Frontier is priced at 41% 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 American Airlines ($138), Allegiant Air ($139), and Frontier ($148).

  • 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 Brussels Airlines (82%), United Airlines (81%) and Mesa Airlines (79%).

  • 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 $114. While the most popular route (Washington, D.C. Dulles Intl - Austin Bergstrom) can be booked for $229 on average our data indicates $716 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
San Marcos
Georgetown
Fredericksburg
Seguin
Round Rock
Dripping Springs
Cedar Park
Pflugerville
Bastrop
Canyon Lake
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

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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 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 April 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$106Average$211FlexibilityNo cancel feeOn-time88%
FrontierCheapest$108Average$155FlexibilityNo cancel feeOn-time62%
DeltaCheapest$222Average$360FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$395FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$518FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$447Average$540FlexibilityNo cancel feeOn-time63%

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