Cheap flights from Austin to Washington, D.C. from $126

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Washington, D.C. departing on 8/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Austin to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:50 am - 12:28 am
AUS
-
IAD
12h 38m
1 stop
Frontier Logo
9:16 pm - 9:48 am
IAD
-
AUS
13h 32m
1 stop
$234Frontier
Wed, Sep 9 - Tue, Sep 15
Frontier Logo
1:59 pm - 11:17 pm
AUS
-
IAD
8h 18m
1 stop
Frontier Logo
7:30 am - 12:56 pm
IAD
-
AUS
6h 26m
1 stop
$235Frontier
Wed, Aug 19 - Wed, Aug 26
Frontier Logo
12:44 pm - 10:16 am
AUS
-
IAD
20h 32m
1 stop
Frontier Logo
7:30 am - 12:56 pm
IAD
-
AUS
6h 26m
1 stop
$236Frontier
Sat, Aug 22 - Mon, Aug 24
Allegiant Air Logo
3:52 pm - 8:13 pm
AUS
-
IAD
3h 21mnonstop
Allegiant Air Logo
4:30 pm - 6:46 pm
IAD
-
AUS
3h 16mnonstop
$239Allegiant Air
Mon, Jul 13 - Fri, Jul 24
Allegiant Air Logo
3:52 pm - 8:13 pm
AUS
-
IAD
3h 21mnonstop
Allegiant Air Logo
4:30 pm - 6:46 pm
IAD
-
AUS
3h 16mnonstop
$240Allegiant Air
Fri, Jul 17 - Mon, Jul 20
Allegiant Air Logo
3:52 pm - 8:13 pm
AUS
-
IAD
3h 21mnonstop
Allegiant Air Logo
4:30 pm - 6:46 pm
IAD
-
AUS
3h 16mnonstop
$242Allegiant Air
Fri, Jul 17 - Mon, Jul 20
Frontier Logo
12:44 pm - 11:17 pm
AUS
-
IAD
9h 33m
1 stop
Frontier Logo
7:30 am - 12:56 pm
IAD
-
AUS
6h 26m
1 stop
$244Frontier
Sat, Aug 22 - Mon, Aug 24
Frontier Logo
1:33 pm - 10:55 pm
AUS
-
IAD
8h 22m
1 stop
Frontier Logo
7:30 am - 12:56 pm
IAD
-
AUS
6h 26m
1 stop
$246Frontier
Mon, Aug 17 - Wed, Aug 26
Frontier Logo
5:34 pm - 5:14 pm
AUS
-
IAD
22h 40m
1 stop
Frontier Logo
7:48 am - 4:39 pm
IAD
-
AUS
9h 51m
1 stop
$248Frontier
Tue, Aug 4 - Thu, Aug 13
Allegiant Air Logo
3:52 pm - 8:13 pm
AUS
-
IAD
3h 21mnonstop
Allegiant Air Logo
4:30 pm - 6:46 pm
IAD
-
AUS
3h 16mnonstop
$249Allegiant Air
Fri, Jul 17 - Mon, Jul 20

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Allegiant Air flights from Austin to Washington, D.C. Dulles Intl Airport

Our best Allegiant Air deals on Austin to Washington, D.C. Dulles Intl Airport flight tickets
Allegiant Air
Jul 17
AUS3:52 pmAustin Bergstrom
3h 21m
IAD8:13 pmWashington, D.C. Dulles Intl
Jul 20
IAD4:30 pmWashington, D.C. Dulles Intl
3h 16m
AUS6:46 pmAustin Bergstrom
$240
Allegiant Air
Jul 17
AUS3:52 pmAustin Bergstrom
3h 21m
IAD8:13 pmWashington, D.C. Dulles Intl
Jul 20
IAD4:30 pmWashington, D.C. Dulles Intl
3h 16m
AUS6:46 pmAustin Bergstrom
$242
Allegiant Air
Jul 17
AUS3:52 pmAustin Bergstrom
3h 21m
IAD8:13 pmWashington, D.C. Dulles Intl
Jul 24
IAD4:30 pmWashington, D.C. Dulles Intl
3h 16m
AUS6:46 pmAustin Bergstrom
$267

Frontier flights from Austin to Washington, D.C. Dulles Intl Airport

Our best Frontier deals on Austin to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Sep 9
AUS10:50 amAustin Bergstrom
12h 38m
1 stop
IAD12:28 amWashington, D.C. Dulles Intl
Sep 15
IAD9:16 pmWashington, D.C. Dulles Intl
13h 32m
1 stop
AUS9:48 amAustin Bergstrom
$234
Frontier
Aug 19
AUS1:59 pmAustin Bergstrom
8h 18m
1 stop
IAD11:17 pmWashington, D.C. Dulles Intl
Aug 26
IAD7:30 amWashington, D.C. Dulles Intl
6h 26m
1 stop
AUS12:56 pmAustin Bergstrom
$235
Frontier
Aug 22
AUS12:44 pmAustin Bergstrom
20h 32m
1 stop
IAD10:16 amWashington, D.C. Dulles Intl
Aug 24
IAD7:30 amWashington, D.C. Dulles Intl
6h 26m
1 stop
AUS12:56 pmAustin Bergstrom
$236

momondo Fare Finder

 
Customize your flight search to find flights from Austin to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated June 17, 2026.
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

Cheapest round-trip

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 9/9

10:50 am-12:28 am

1 stop12h 38m

Washington, D.C. Dulles Intl

Tue 9/15

9:16 pm-9:48 am

1 stop13h 32m

$234

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Wed 8/19

1:59 pm-11:17 pm

1 stop8h 18m

Washington, D.C. Dulles Intl

Wed 8/26

7:30 am-12:56 pm

1 stop6h 26m

$235

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 8/22

12:44 pm-10:16 am

1 stop20h 32m

Washington, D.C. Dulles Intl

Mon 8/24

7:30 am-12:56 pm

1 stop6h 26m

$236
Quickest round-trip

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Mon 7/13

3:52 pm-8:13 pm

Nonstop3h 21m

Washington, D.C. Dulles Intl

Fri 7/24

4:30 pm-6:46 pm

Nonstop3h 16m

$239

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Fri 7/17

3:52 pm-8:13 pm

Nonstop3h 21m

Washington, D.C. Dulles Intl

Mon 7/20

4:30 pm-6:46 pm

Nonstop3h 16m

$240

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Fri 7/17

3:52 pm-8:13 pm

Nonstop3h 21m

Washington, D.C. Dulles Intl

Mon 7/20

4:30 pm-6:46 pm

Nonstop3h 16m

$242

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Sat 8/22

12:44 pm-11:17 pm

1 stop9h 33m

Washington, D.C. Dulles Intl

Mon 8/24

7:30 am-12:56 pm

1 stop6h 26m

$244

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Mon 8/17

1:33 pm-10:55 pm

1 stop8h 22m

Washington, D.C. Dulles Intl

Wed 8/26

7:30 am-12:56 pm

1 stop6h 26m

$246

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Tue 8/4

5:34 pm-5:14 pm

1 stop22h 40m

Washington, D.C. Dulles Intl

Thu 8/13

7:48 am-4:39 pm

1 stop9h 51m

$248

AustinWashington, D.C.

AUS - IAD

AUSIAD

Austin Bergstrom

Fri 7/17

3:52 pm-8:13 pm

Nonstop3h 21m

Washington, D.C. Dulles Intl

Mon 7/20

4:30 pm-6:46 pm

Nonstop3h 16m

$249

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Austin to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Austin and Washington, D.C. Dulles Intl Airport?

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

In general, August is the cheapest month to fly from Austin to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $362. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $437.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $548. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Austin to Washington, D.C. Dulles Intl Airport for around $856.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Austin in the morning is the least expensive time of day to depart. momondo users have found prices as low as $684 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $799 on average. Flights to Washington, D.C. Dulles Intl Airport from Austin in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Austin Bergstrom to Washington, D.C. Dulles Intl flight route?

Fly from Austin Bergstrom to Washington, D.C. Dulles Intl for the best Austin Bergstrom - Washington, D.C. Dulles Intl flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $512 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Austin for as low as $289 on momondo.

What cabin class options are available on Austin to Washington, D.C. Dulles Intl Airport flights?

There are 4 cabin classes available to choose from on Austin to Washington, D.C. Dulles Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Austin to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Austin to Washington, D.C. Dulles Intl Airport.

How have Austin to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of June 2026, prices for Austin to Washington, D.C. Dulles Intl Airport flights are approximately 19% cheaper when compared to flights at the same time last year.

When to book flights from Austin to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to Washington, D.C. Dulles Intl Airport (AUS to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Washington, D.C. Dulles Intl Airport

Best Price Found

$191

Fastest flight time

2h 57m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Austin in the past 72 hours is $191. The best round-trip flight deal from Austin to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $470.
The fastest flight from Austin to Washington, D.C. Dulles Intl Airport takes 2h 57m
Direct flights go from Austin to Washington, D.C. Dulles Intl Airport every day.

Frequently asked questions about flying from Austin to Washington, D.C. Dulles Intl Airport

  • How far is Austin Bergstrom to Washington, D.C. Dulles Intl by plane?

    There are 1295.3 mi between Austin Bergstrom and Washington, D.C. Dulles Intl. Typically, this will take 2h 57m by plane in normal conditions.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Austin Bergstrom Airport to Washington, D.C. Dulles Intl Airport are updated daily.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Austin to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Austin to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Austin to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Austin to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $118Free CancellationRating
7.8
8,407 reviews
Search Delta flights
Allegiant AirPriceFrom $121Free CancellationRating
7.3
694 reviews
Search Allegiant Air flights
FrontierPriceFrom $135Free CancellationRating
5.6
2,883 reviews
Search Frontier flights
American AirlinesPriceFrom $210Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
United AirlinesPriceFrom $310Free CancellationRating
7.4
9,845 reviews
Search United Airlines flights
  • United Airlines Flights From Austin to Washington, D.C. Dulles Intl Airport

    The lowest priced United Airlines flight from Austin to Washington, D.C. Dulles Intl Airport from the last 72 hours was $310. Generally, United Airlines has 16 flights on this route every week with an average price of $543. United Airlines is rated 7.4/10 by our users.

  • Allegiant Air Flights From Austin to Washington, D.C. Dulles Intl Airport

    $121 is the best Allegiant Air flight deal from Austin to Washington, D.C. Dulles Intl Airport found on momondo over the last 72 hours. The average Allegiant Air ticket price found was closer to $233, however, with flight time and availability significantly affecting the price. Allegiant Air (7.3/10 from 694 user reviews) flies into Washington, D.C. Dulles Intl Airport from Austin 1 time in an average week so prices can vary.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Fredericksburg
Gaithersburg
Colonial Beach
Rockville
Linthicum Heights
Silver Spring
Towson
Manassas
Sterling
Tysons
Springfield
Bethesda

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Austin to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Austin to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Austin with this policy.

How can momondo help me find flights from Austin to Washington, D.C.?

momondo helps you find the best flight between Austin and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Austin to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Austin to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Fri 7/17
Fri 7/24

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