AUS - IAD

$139 Find Cheap Flights from Austin to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Dulles Intl departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$250
Typical prices: $443-$275
Frontier
Wed 8/12Sat 8/15
AUS - IAD • 1 stop
Cheapest non-stop
$273
Typical prices: $570-$403
Allegiant Air
Fri 5/22Mon 5/25
AUS - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom benefits.
Expect long security lines at Austin Bergstrom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $250 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines and Allegiant Air. Average duration is 3h 20m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 92% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $148 (round-trip)
Shortest trip • 4h 55m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
Good to know
+1
+1
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+1
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We hope you love your trip to Dulles Intl!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Austin to Dulles Intl (AUS-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Austin to Dulles Intl

Wed, Aug 12 - Sat, Aug 15
Frontier Logo
1:59 pm - 11:17 pm
AUS
-
IAD
8h 18m
1 stop
Frontier Logo
6:49 am - 11:42 am
IAD
-
AUS
5h 53m
1 stop
$250Frontier
Mon, Apr 13 - Fri, Apr 17
Frontier Logo
4:44 pm - 12:36 am
AUS
-
IAD
6h 52m
1 stop
Frontier Logo
1:31 pm - 11:21 am
IAD
-
AUS
22h 50m
1 stop
$252Frontier
Fri, Jun 5 - Sun, Jun 7
Multiple Airlines Logo
10:54 am - 11:21 am
AUS
-
IAD
23h 27m
2 stops
Multiple Airlines Logo
7:27 pm - 10:50 am
IAD
-
AUS
16h 23m
1 stop
$253Multiple Airlines
Thu, Jun 4 - Fri, Jun 5
Multiple Airlines Logo
9:13 pm - 10:12 am
AUS
-
IAD
11h 59m
2 stops
Multiple Airlines Logo
4:27 pm - 6:42 pm
IAD
-
AUS
3h 15mnonstop
$254Multiple Airlines
Fri, May 22 - Fri, Jun 5
Allegiant Air Logo
4:38 pm - 8:46 pm
AUS
-
IAD
3h 08mnonstop
Allegiant Air Logo
4:27 pm - 6:42 pm
IAD
-
AUS
3h 15mnonstop
$255Allegiant Air
Fri, Apr 24 - Mon, Apr 27
Frontier Logo
8:03 pm - 9:54 am
AUS
-
IAD
12h 51m
2 stops
Frontier Logo
6:00 am - 5:08 pm
IAD
-
AUS
12h 08m
1 stop
$256Frontier
Thu, Apr 16 - Mon, Apr 20
Multiple Airlines Logo
5:40 pm - 12:36 am
AUS
-
IAD
5h 56m
1 stop
Multiple Airlines Logo
6:00 am - 11:40 pm
IAD
-
AUS
18h 40m
2 stops
$257Multiple Airlines
Wed, Apr 22 - Mon, Apr 27
Frontier Logo
6:13 pm - 8:56 am
AUS
-
IAD
13h 43m
2 stops
Frontier Logo
6:00 am - 5:08 pm
IAD
-
AUS
12h 08m
1 stop
$258Frontier
Fri, Apr 24 - Mon, Apr 27
Frontier Logo
8:03 pm - 9:54 am
AUS
-
IAD
12h 51m
2 stops
Frontier Logo
8:17 am - 6:17 pm
IAD
-
AUS
11h 00m
1 stop
$259Frontier
Mon, Apr 13 - Thu, Apr 16
Frontier Logo
4:44 pm - 12:36 am
AUS
-
IAD
6h 52m
1 stop
Frontier Logo
12:35 pm - 6:17 pm
IAD
-
AUS
6h 42m
1 stop
$260Frontier
Booking Insights

KAYAK's insights & trends for Austin to Dulles Intl flights

Get data-powered insights and trends into flights from Austin to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Austin to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Austin to Washington, D.C. Dulles Intl Airport departing in August.

What’s the cheapest day of the week to fly from Austin to Washington Dulles Airport?

The average price of all round-trip flights from Austin to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

For Austin to Washington Dulles Airport, Friday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Washington Dulles Airport back to Austin, the best deals are generally found on Friday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Austin to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Austin to Washington, D.C. Dulles Intl Airport is August, where tickets cost $353 (return) on average. On the other hand, the most expensive months are January and March, where the average cost of round-trip tickets is $729 and $569 respectively.

Can I save money by flying with a layover from Austin to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $510, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Austin to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Austin to Washington, D.C. Dulles Intl Airport, you should book around 4 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

Expert advice for your flight from Austin to Dulles Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on AUS

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$139
Best time to beat the crowds but there is an average 49% increase in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Austin to Washington Dulles Airport

When to book flights from Austin to Dulles Intl

Are your dates flexible? Find out the best times to travel from Austin to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Austin to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Austin to Washington, D.C. Dulles Intl Airport was $139 for a one-way ticket and $250 for a round-trip.

  • Do I need a passport to fly between Austin and Washington Dulles Airport?

    A passport is not required to fly from Austin to Washington Dulles Airport.

  • Which airports will I be using when flying from Austin to Washington Dulles Airport?

    Austin airport is called Austin Bergstrom and the only airport in Washington Dulles Airport is Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Austin to Washington Dulles Airport?

    JetBlue, Delta, American Airlines, and United Airlines offer inflight Wi-Fi service on the Austin to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Austin to Washington Dulles Airport?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Austin to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Austin to Washington Dulles Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Austin and Washington Dulles Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Austin to Washington Dulles Airport?

    There are nonstop flights from Austin to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Austin to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Austin to Washington, D.C. are Delta and United Airlines. With an average price for the route of $398 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $507 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Austin to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Austin to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Austin to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Austin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Austin to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Austin with another airline. Booking your flights between Austin and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Austin to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Austin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Austin to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $310 or less one-way and $473 or less round-trip.

Prefer to fly direct from Austin to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Austin Bergstrom to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Austin Bergstrom Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Austin Bergstrom to Washington, D.C. Dulles Intl

Monday

United Airlines,Allegiant Air

United Airlines,Allegiant Air

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines,Allegiant Air

United Airlines,Allegiant Air

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Austin Bergstrom

Monday

United Airlines,Allegiant Air

United Airlines,Allegiant Air

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines,Allegiant Air

United Airlines,Allegiant Air

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Austin to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Austin to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Austin to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8367 reviews
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

2.0 MediocreEdward, Mar 2026
ATL - EWR
Read more Delta reviews

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Everything you need to know for your flight from Austin to Dulles Intl

Information on your arrival and departure airports