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

United Airlines, at $197, was found to be the cheapest airline from Austin to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include American Airlines and Frontier. United Airlines is priced at 59% 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 United Airlines ($104), American Airlines ($108), and Frontier ($113).

What is the cheapest day to fly from Austin to Washington, D.C. Dulles Intl Airport?

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

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.

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).

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

On average you can expect to pay $1,629 for a flight from Austin to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $114 while the most popular route, (Austin Bergstrom - Washington, D.C. Dulles Intl) is currently priced at $197.

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 Allegiant Air (88%), Republic Airways (83%) and Brussels Airlines (77%).

What are the most popular airlines that fly from Austin to Washington, D.C. Dulles Intl Airport?

When booking a flight from Austin to Washington, D.C. Dulles Intl Airport, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

What is the cheapest day to fly round-trip from Austin to Washington, D.C. Dulles Intl Airport?

Thursday is generally a great day to depart. Flying on this day could help you save up to 59%.

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

August can be a great time to fly to Washington, D.C. Dulles Intl Airport from Austin with a flight ticket averaging about $428. Cheapflights users have found deals in the month of August for as cheap as $125. The most expensive prices can be found in the month of November.

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 are 3 flights from Austin Bergstrom to Washington, D.C. Dulles Intl per day from 6 different airlines.

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.

$104+ Flights from Austin to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Austin Bergstrom to Washington, D.C. Dulles Intl are usually found in June or August, booked 83 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Austin to Dulles Intl

Round-trip from	$197 (United Airlines)
One-way from	$104 (United Airlines)
Popular in	November
Cheapest in	June
Average price	$403
Good round-trip deal	$403 or less
Good one-way deal	$166 or less

From Austin Bergstrom to Washington, D.C. Dulles Intl

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One-way flight from Austin Bergstrom to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 13% potential increase in price ($74 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from Austin Bergstrom to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Austin Bergstrom to Washington, D.C. Dulles Intl.

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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 July 31, 2025.

Wed 9/34:55 pmAUS - IAD

Nonstop3h 16mUnited Airlines

Thu 9/45:55 pmIAD - AUS

Nonstop3h 30mUnited Airlines

Deal found 7/31

$197

Sat 8/235:00 amAUS - IAD

1 stop5h 01mAmerican Airlines

Sat 8/238:19 pmIAD - AUS

1 stop4h 53mAmerican Airlines

Deal found 7/30

$217

Sat 8/93:15 pmAUS - IAD

1 stop14h 19mFrontier

Sat 8/166:10 amIAD - AUS

1 stop11h 36mFrontier

Deal found 7/28

$218

Thu 8/215:35 amAUS - IAD

1 stop5h 09mDelta

Tue 8/267:22 amIAD - AUS

1 stop6h 01mDelta

Deal found 7/29

$237

Thu 8/286:45 amAUS - IAD

1 stop8h 00mSouthwest

Thu 9/47:35 amIAD - AUS

1 stop9h 20mSouthwest

Deal found 7/29

$269

Thu 9/412:15 pmAUS - IAD

3 stops26h 38mMultiple Airlines

Mon 9/810:49 amIAD - AUS

2 stops13h 13mMultiple Airlines

Deal found 7/30

$289

Best flights from Austin to Dulles Intl
Discover carefully curated flight deals from Austin to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Wed 9/310:20 amAUS - IAD

Nonstop3h 16mUnited Airlines

Wed 9/105:55 pmIAD - AUS

Nonstop3h 30mUnited Airlines

Deal found 7/31

$197

Sat 8/235:00 amAUS - IAD

1 stop5h 01mAmerican Airlines

Sat 8/238:19 pmIAD - AUS

1 stop4h 53mAmerican Airlines

Deal found 7/30

$217

Sat 8/3011:00 amAUS - IAD

1 stop8h 48mFrontier

Fri 9/56:10 amIAD - AUS

1 stop11h 24mFrontier

Deal found 7/30

$228

Thu 8/215:35 amAUS - IAD

1 stop5h 09mDelta

Sat 8/236:15 pmIAD - AUS

1 stop5h 59mDelta

Deal found 7/29

$237

Thu 8/286:45 amAUS - IAD

1 stop8h 00mSouthwest

Thu 9/47:35 amIAD - AUS

1 stop9h 20mSouthwest

Deal found 7/29

$269

Thu 9/412:15 pmAUS - IAD

3 stops26h 38mMultiple Airlines

Mon 9/810:49 amIAD - AUS

2 stops13h 13mMultiple Airlines

Deal found 7/30

$289

Last-minute flights from Austin to Dulles Intl
Discover last-minute flight deals from Austin to Dulles Intl. Data last updated July 31, 2025 and is based on user searches.

Tue 8/57:05 amAUS - IAD

2 stops13h 05mUnited Airlines

Tue 8/128:45 amIAD - AUS

Nonstop3h 24mUnited Airlines

Deal found 7/29

$689

Thu 8/78:28 amAUS - IAD

2 stops23h 55mMultiple Airlines

Sat 8/99:20 pmIAD - AUS

2 stops25h 58mMultiple Airlines

Deal found 7/28

$319

Fri 8/811:47 amAUS - IAD

Nonstop3h 09mAllegiant Air

Mon 8/1110:13 amIAD - AUS

Nonstop3h 19mAllegiant Air

Deal found 7/29

$315

Sat 8/93:15 pmAUS - IAD

1 stop14h 19mFrontier

Sat 8/166:10 amIAD - AUS

1 stop11h 36mFrontier

Deal found 7/28

$218

Sun 8/1012:04 pmAUS - IAD

1 stop5h 37mDelta

Tue 8/1210:07 amIAD - AUS

1 stop4h 40mDelta

Deal found 7/29

$688

Sun 8/102:55 pmAUS - IAD

1 stop9h 00mSouthwest

Tue 8/122:25 pmIAD - AUS

1 stop8h 40mSouthwest

Deal found 7/29

$698

Wed 8/207:15 amAUS - IAD

2 stops26h 29mMultiple Airlines

Sat 8/238:12 pmIAD - AUS

2 stops29h 47mMultiple Airlines

Deal found 7/29

$296

Thu 8/215:35 amAUS - IAD

1 stop5h 09mDelta

Sat 8/236:15 pmIAD - AUS

1 stop5h 59mDelta

Deal found 7/29

$237

Sat 8/235:00 amAUS - IAD

1 stop5h 01mAmerican Airlines

Sat 8/238:19 pmIAD - AUS

1 stop4h 53mAmerican Airlines

Deal found 7/30

$217

Thu 8/2810:20 amAUS - IAD

Nonstop3h 16mUnited Airlines

Thu 9/48:30 amIAD - AUS

Nonstop3h 30mUnited Airlines

Deal found 7/29

$197

Thu 8/286:45 amAUS - IAD

1 stop8h 00mSouthwest

Thu 9/47:35 amIAD - AUS

1 stop9h 20mSouthwest

Deal found 7/29

$269

One-way flights from Austin to Dulles Intl
Search for one-way flight options from Austin to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 31, 2025.

Tue 10/2810:00 amAUS - IAD

1 stop6h 30mUnited Airlines

Deal found 7/31

$104

Sat 9/1310:15 amAUS - IAD

1 stop5h 32mAmerican Airlines

Deal found 7/30

$108

Thu 8/215:26 pmAUS - IAD

1 stop5h 50mFrontier

Deal found 7/29

$113

Wed 8/207:15 amAUS - IAD

2 stops26h 29mMultiple Airlines

Deal found 7/30

$131

Sun 8/108:28 amAUS - IAD

2 stops23h 55mAllegiant Air

Deal found 7/29

$140

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 9/3

10:20 am-2:36 pm

Nonstop3h 16m

Washington, D.C. Dulles Intl

Wed 9/10

5:55 pm-8:25 pm

Nonstop3h 30m

$197

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 8/23

5:00 am-11:01 am

1 stop5h 01m

Washington, D.C. Dulles Intl

Sat 8/23

8:19 pm-12:12 am

1 stop4h 53m

$217

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 8/30

11:00 am-8:48 pm

1 stop8h 48m

Washington, D.C. Dulles Intl

Fri 9/5

6:10 am-4:34 pm

1 stop11h 24m

$228

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 8/21

5:35 am-11:44 am

1 stop5h 09m

Washington, D.C. Dulles Intl

Sat 8/23

6:15 pm-11:14 pm

1 stop5h 59m

$237

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 8/28

6:45 am-3:45 pm

1 stop8h 00m

Washington, D.C. Dulles Intl

Thu 9/4

7:35 am-3:55 pm

1 stop9h 20m

$269

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 9/4

12:15 pm-3:53 pm

3 stops26h 38m

Washington, D.C. Dulles Intl

Mon 9/8

10:49 am-11:02 pm

2 stops13h 13m

$289

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Tue 10/28

10:00 am-5:30 pm

1 stop6h 30m

$104

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 9/13

10:15 am-4:47 pm

1 stop5h 32m

$108

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Thu 8/21

5:26 pm-12:16 am

1 stop5h 50m

$113

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 8/20

7:15 am-10:44 am

2 stops26h 29m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 11 results

The best insider tips for Austin to Washington, D.C. Dulles Intl Airport flights

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.

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.

Our travel experts

Ramsey Qubein

Expert on IAD and AUS

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?

Booking 83 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, July is the cheapest month in which you can book a flight from Austin to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Austin to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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?

A simple way to save on the total cost of your ticket is to fly from Austin to Washington, D.C. Dulles Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 54% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Austin to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Southwest

8.0

Very good

4,246 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Delta

8.0

Very good

7,981 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

United Airlines

7.4

Good

8,900 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Allegiant Air

7.2

Good

702 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Related info for your journey

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 are 3 flights from Austin Bergstrom to Washington, D.C. Dulles Intl per day from 6 different airlines.
What are the cheapest airlines flying from Austin to Washington, D.C. Dulles Intl Airport round-trip?
United Airlines, at $197, was found to be the cheapest airline from Austin to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include American Airlines and Frontier. United Airlines is priced at 59% 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 United Airlines ($104), American Airlines ($108), and Frontier ($113).
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 Allegiant Air (88%), Republic Airways (83%) and Brussels Airlines (77%).
What are the cheapest flights from Austin to Washington, D.C. Dulles Intl Airport?
On average you can expect to pay $1,629 for a flight from Austin to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $114 while the most popular route, (Austin Bergstrom - Washington, D.C. Dulles Intl) is currently priced at $197.
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, July is the cheapest month in which you can book a flight from Austin to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Austin to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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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Top 6 airlines flying from Austin to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Allegiant Air	Cheapest$100	Average$184	FlexibilityNo cancel fee	On-time88%
Frontier	Cheapest$128	Average$224	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$236	Average$397	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$236	Average$426	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$265	Average$530	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$300	Average$588	FlexibilityNo cancel fee	On-time63%

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$104+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Austin to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Austin Bergstrom to Washington, D.C. Dulles Intl are usually found in June or August, booked 83 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Austin to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Austin to Dulles Intl

Cheapest flights from Austin to Dulles IntlExplore 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 July 31, 2025.

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 July 31, 2025.

Cheapflights Fare Finder

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

The best insider tips for Austin to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Austin to Washington, D.C. Dulles Intl Airport trip

Airports

AUS

IAD

Our travel experts

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.

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 July 25, 2025.

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

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 July 31, 2025.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Austin to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Austin to Dulles Intl

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Top 6 airlines flying from Austin to Dulles Intl

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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 July 31, 2025.