Dulles Intl

$120+ Cheap flights from Austin (AUS) to Dulles Intl (IAD)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — IAD
May 26 — Jun 21
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Cheapflights Tip: The best prices from Austin Bergstrom to Washington, D.C. Dulles Intl are usually found in July or August, booked 64 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Austin to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Dulles Intl (IAD). 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 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$202
(FlightHub)

One-way from

$120
(Frontier)

Popular in

November

Cheapest in

July

Average price

$489

Good round-trip deal

$490 or less

Good one-way deal

$230 or less
Provider with most accurate pricing for Austin Bergstrom-Washington, D.C. Dulles Intl flight deals.
Provider most trusted by Cheapflights users for Austin Bergstrom-Washington, D.C. Dulles Intl flights.
From Austin Bergstrom to Washington, D.C. Dulles Intl
One-way flight from Austin Bergstrom to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 12% potential increase in price ($66 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in May 2025
Price to beat on a round-trip flight from Austin Bergstrom to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Austin Bergstrom to Washington, D.C. Dulles Intl.

Find flight deals from Austin to Dulles Intl

Cheapest flights from Austin to Dulles Intl
Explore the most affordable flight options available from Austin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 21, 2025.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/17:01 pmAUS - IAD
1 stop16h 48mFrontier
Tue 6/35:15 amIAD - AUS
1 stop7h 27mFrontier
Deal found 5/20$202
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/115:31 pmAUS - IAD
1 stop5h 41mMultiple Airlines
Mon 7/1410:13 amIAD - AUS
Nonstop3h 19mMultiple Airlines
Deal found 5/20$205
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/318:28 amAUS - IAD
2 stops23h 55mAllegiant Air
Mon 8/410:13 amIAD - AUS
Nonstop3h 19mAllegiant Air
Deal found 5/20$213
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/285:25 amAUS - IAD
1 stop6h 55mSouthwest
Fri 8/15:00 amIAD - AUS
2 stops10h 10mSouthwest
Deal found 5/19$282
This American Airlines deal was found by Cheapflights users on 5/21. 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.
Tue 7/293:47 pmAUS - IAD
1 stop15h 46mAmerican Airlines
Wed 7/3011:49 amIAD - AUS
1 stop6h 22mAmerican Airlines
Deal found 5/21$307
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2010:30 amAUS - IAD
Nonstop3h 18mUnited Airlines
Tue 6/244:00 pmIAD - AUS
Nonstop3h 26mUnited Airlines
Deal found 5/20$319
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/255:04 pmAUS - IAD
1 stop6h 30mDelta
Wed 7/306:00 amIAD - AUS
1 stop7h 23mDelta
Deal found 5/20$339

Cheapflights Fare Finder

Customize your flight search to find flights from Austin to Dulles Intl 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 21, 2025.
Use the filters below to find and compare flights from Austin to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Austin

Fly to

Dulles Intl

Route

Depart

Return

Price

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sun 6/1

7:01 pm-12:49 pm

1 stop16h 48m

Washington, D.C. Dulles Intl

Tue 6/3

5:15 am-11:42 am

1 stop7h 27m

$202

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Fri 7/11

5:31 pm-12:12 am

1 stop5h 41m

Washington, D.C. Dulles Intl

Mon 7/14

10:13 am-12:32 pm

Nonstop3h 19m

$205

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 7/31

8:28 am-9:23 am

2 stops23h 55m

Washington, D.C. Dulles Intl

Mon 8/4

10:13 am-12:32 pm

Nonstop3h 19m

$213

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Mon 7/28

5:25 am-1:20 pm

1 stop6h 55m

Washington, D.C. Dulles Intl

Fri 8/1

5:00 am-2:10 pm

2 stops10h 10m

$282

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 6/18

10:02 am-11:59 pm

1 stop12h 57m

Washington, D.C. Dulles Intl

Sat 6/21

5:50 am-5:00 pm

1 stop12h 10m

$306

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Fri 6/20

10:30 am-2:48 pm

Nonstop3h 18m

Washington, D.C. Dulles Intl

Tue 6/24

4:00 pm-6:26 pm

Nonstop3h 26m

$319

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Fri 6/20

5:25 am-11:33 am

1 stop5h 08m

Washington, D.C. Dulles Intl

Fri 6/20

7:34 pm-12:19 am

1 stop5h 45m

$338

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sun 6/1

7:01 pm-12:49 pm

1 stop16h 48m

$120

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Mon 6/23

5:39 pm-11:26 am

2 stops16h 47m

$121

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 8/7

8:28 am-2:23 pm

2 stops28h 55m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Showing 1-10 of 16 results
1
2

Compare providers for flights from Austin to Dulles Intl

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

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

Expect long lines at AUS, especially during morning rush. Plan extra time for security and check-in to avoid missing your flight.

Read more about AUSby Ramsey Qubein
IAD

Use the Silver Line Metro for a cheap, 40-minute ride to downtown D.C. from IAD, with the station just five minutes from the terminal.

Read more about IADby 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 Austin to Dulles Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Austin to Dulles Intl. Price data was last updated on May 16, 2025.

Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Austin to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Austin to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Austin to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $363). 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 AUS to IAD?

Find hourly flight availability from Austin to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 21, 2025.

A simple way to save on the total cost of your ticket is to fly from Austin to Washington, D.C. Dulles Intl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 82% on your trip compared to booking a flight in the afternoon.

Rainfall in Dulles Intl by month

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated May 21, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Austin to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Austin to Dulles Intl. 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 from for flights from Austin to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Austin, you will be flying from Austin Bergstrom, which is the city’s only airport. Austin Bergstrom (AUS) is located 7.5 mi from the center of Austin. There is 1 flight from Austin Bergstrom to Washington, D.C. Dulles Intl per day from 4 different airlines.

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

    Frontier, at $202, was found to be the cheapest airline from Austin to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Allegiant Air and Southwest. Frontier is priced at 57% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Austin to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Austin to Washington, D.C. Dulles Intl Airport are Frontier ($120), Allegiant Air ($123), and American Airlines ($134).

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

    The top 3 most reliable airlines when flying from Austin to Washington, D.C. Dulles Intl Airport are Lufthansa (93%), Brussels Airlines (92%) and United Airlines (86%).

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

    On average you can expect to pay $1,461 for a flight from Austin to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $100 while the most popular route, (Austin Bergstrom - Washington, D.C. Dulles Intl) is currently priced at $110.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Austin to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Austin to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $363). 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

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Alternative routes for Austin to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Austin to Dulles Intl

Discover the top 4 airlines that operate flights from Austin to Dulles Intl. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$131Average$206FlexibilityNo cancel feeOn-time88%
DeltaCheapest$236Average$389FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$403FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$257Average$504FlexibilityNo cancel feeOn-time69%

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