IAD - AUS

$155 Find Cheap Flights from Washington Dulles Airport to Austin - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Austin departing on 8/29. 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.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$293
Typical prices: $358-$533
Frontier
Sat 8/29Sun 8/30
IAD - AUS • 1 stop
Cheapest non-stop
$377
Typical prices: $412-$604
United Airlines
Mon 8/31Wed 9/2
IAD - AUS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United Economy Plus adds up to six inches more legroom than standard economy.
Allegiant Bonus bundle adds a carry-on, seat choice, and ticket change flexibility.
Expert advice
Expert advice
Expert advice
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Top airlines
Cheapest • from $293 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with United Airlines. Average duration is 3h 34m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $344 (round-trip)
Shortest trip • 5h 55m (one-way)
Insights
Insights
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 51% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 22% price drop
Most popular
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Austin 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 Dulles Intl to Austin

Sat, Aug 29 - Sun, Aug 30
Frontier Logo
7:00 am - 4:39 pm
IAD
-
AUS
10h 39m
1 stop
Frontier Logo
12:47 pm - 8:04 am
AUS
-
IAD
18h 17m
1 stop
$293Frontier
Sun, Aug 30 - Sun, Sep 6
Multiple Airlines Logo
8:39 pm - 4:39 pm
IAD
-
AUS
21h 00m
1 stop
Multiple Airlines Logo
7:10 pm - 2:12 pm
AUS
-
IAD
18h 02m
2 stops
$293Multiple Airlines
Wed, Aug 12 - Mon, Aug 24
Frontier Logo
7:48 am - 12:38 pm
IAD
-
AUS
5h 50m
1 stop
Frontier Logo
5:37 pm - 5:14 pm
AUS
-
IAD
22h 37m
1 stop
$294Frontier
Thu, Sep 3 - Sun, Sep 6
Multiple Airlines Logo
6:20 am - 4:39 pm
IAD
-
AUS
11h 19m
1 stop
Multiple Airlines Logo
7:10 pm - 2:12 pm
AUS
-
IAD
18h 02m
2 stops
$304Multiple Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
5:34 pm - 10:26 pm
IAD
-
AUS
5h 52m
1 stop
American Airlines Logo
8:45 am - 4:53 pm
AUS
-
IAD
7h 08m
1 stop
$317American Airlines
Sat, Sep 5 - Wed, Sep 9
American Airlines Logo
1:23 pm - 5:36 pm
IAD
-
AUS
5h 13m
1 stop
American Airlines Logo
2:08 pm - 8:24 pm
AUS
-
IAD
5h 16m
1 stop
$317American Airlines
Sat, Aug 29 - Sat, Aug 29
Delta Logo
6:00 am - 10:01 am
IAD
-
AUS
5h 01m
1 stop
Delta Logo
4:32 pm - 11:26 pm
AUS
-
IAD
5h 54m
1 stop
$317Delta
Sat, Aug 22 - Tue, Aug 25
Delta Logo
8:28 am - 12:29 pm
IAD
-
AUS
5h 01m
1 stop
Delta Logo
5:15 am - 11:33 am
AUS
-
IAD
5h 18m
1 stop
$317Delta
Mon, Aug 31 - Wed, Sep 2
United Airlines Logo
8:25 am - 10:56 am
IAD
-
AUS
3h 31mnonstop
United Airlines Logo
12:05 pm - 4:21 pm
AUS
-
IAD
3h 16mnonstop
$377United Airlines
Thu, Aug 20 - Thu, Aug 27
United Airlines Logo
8:25 am - 10:56 am
IAD
-
AUS
3h 31mnonstop
United Airlines Logo
7:30 am - 11:44 am
AUS
-
IAD
3h 14mnonstop
$377United Airlines
Booking Insights

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

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

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

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

Flight prices are below average for this route right now.

Flights to Austin from Washington, D.C. Dulles Intl Airport usually cost between $358 and $533 in August.
The lowest price found in the past 5 days was $293 on Frontier (Aug 29-Aug 31).

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

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

If your flying dates are flexible, you should consider flying to Austin on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Washington Dulles Airport to Austin. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Austin, 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 Washington, D.C. Dulles Intl Airport to Austin is August, where tickets cost $411 (return) on average. On the other hand, the most expensive months are March and February, where the average cost of round-trip tickets is $613 and $595 respectively.

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

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 $561, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Austin, 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 Washington, D.C. Dulles Intl Airport to Austin, you should book around 4 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Dulles Intl to Austin

 
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
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.

Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

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 season

January

Cheapest flight

$155
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Washington Dulles Airport to Austin

When to book flights from Dulles Intl to Austin

Are your dates flexible? Find out the best times to travel from Dulles Intl to Austin 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 Washington Dulles Airport to Austin flights

  • Where is the Admirals Club lounge in Austin Airport?

    Members of the Admirals Club can take advantage of the Admirals club lounge on arrival at Austin International Airport. The lounge is ideal for relaxing and offers complimentary snacks and drinks, newspapers and magazines, TV and working areas. Those flying with American Airlines can check whether there is space and pay at the door. The lounge is across from gate 22 on the mezzanine level airside of the Barbara Jordan Terminal.

  • Which facilities are available to nursing mothers at IAD?

    Dulles International ensures breastfeeding mothers comfortably nurse, breast pump and breastfeed their babies. The airport has nursing rooms located in the secure areas and post-security. In the secure areas, nursing rooms are next to the restrooms in front of baggage claims 2, 6, 11 and 14 of the Arrivals level. The post-security nursing rooms are located at gates A, B, C and D.

  • Where are the pet rest areas at Washington Dulles Airport?

    Traveling with your service animal at Washington Dulles International Airport, there are various pet rests. These pet rest areas are next to gate A32 and gate D1 of the pre-security area and opposite ends of the terminal on the departure level. An additional relief area is available near baggage claim 1, outside the building on the Arrival level.

  • Which services are available for relaxation at Austin International Airport?

    On arrival at Austin International Airport, you can relax at the observation deck and watch planes landing and taking off. The observation deck has picnic tables and parking and is located east of the airport entrance. You can also get a chair or foot massage at Knot Anymore Massage. The massage zone is located at gate 7 of the Barbara Jordan Terminal and Gate 13.

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Austin was $155 for a one-way ticket and $293 for a round-trip.

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

    No, a passport isn't needed to fly from Washington Dulles Airport to Austin. However, local authorities might ask for an official ID.

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

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

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

    The Boeing 737-800 is the aircraft model that flies most regularly on the Washington Dulles Airport to Austin flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Austin are Delta and United Airlines. With an average price for the route of $426 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $577 and an overall rating of 7.4.

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

    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 Washington Dulles Airport to Austin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from Washington Dulles Airport 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 Washington Dulles Airport to Austin?

    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 Austin with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and AUS 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 Washington Dulles Airport to Austin?

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $273 or less one-way and $458 or less round-trip.
  • Passengers can relax at the Air France KLM Lounge at Washington Dulles Airport (IAD) before departure. The lounge is opposite Gate A22, concourse A, airside the midfield terminal. You can use the train to access the lounge.
  • There are several information desks if you need assistance at Washington Dulles International Airport. These desks are located landside at baggage claims 116, and 14 ND on the airside near gates B62, C17, A15, and D16 and beyond security. Additionally, there are airport ambassadors throughout the airport.
  • Passengers with limited mobility can take advantage of the designated parking at Washington Dulles Airport. This parking is available at the terminal lot, garages 1 and 2 and the economy parking. Additionally, the airport shuttles are accessible.
  • For those who want a place to sit and eat or grab food at Austin International Airport (AUS), there are various food concessions on the land and airside. Additionally, vending machines are available near Carousels 1 and 5 of the baggage claim level.
  • If you want assistance at Austin International Airport, there are information desks to help you with directions, information on ground transportation and area maps. In addition, the visitor's information centers are near carousels 3 and 5 at the baggage claim area in Barbara Jordan Terminal.

Prefer to fly direct from Washington Dulles Airport to Austin?

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

Direct departures

Washington, D.C. Dulles Intl to Austin Bergstrom

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Austin Bergstrom to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

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

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Austin. 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 Dulles Intl to Austin? 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.
7.8
DeltaOverall score based on 8488 reviews
7.8Entertainment
8.1Boarding
7.8Comfort
7.2Food
8.5Crew
Airline reviews

Flight was delayed for about an hour but overall good experience

8.0 ExcellentNana, Jul 2026
DCA - ATL
Read more Delta reviews

Flight was delayed for about an hour but overall good experience

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

They were an hour late and they didn’t have my wheelchair for me

Food service was bare-bone. Better bot to have any at all rather than hand out premade coffees and cookies to random few passengers.

I wouldn't say I liked being forced to check my small roller bag at the gate; too many people had bags and were in a higher boarding group.

due to delay, we were downgraded in seating, so it was cramped

My flight was delayed so bad i missed u it so i just said never mind

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

Onboard staff was courteous, helpful, responsive and friendly. The boarding process was disorganized, poorly communicated, and disheveled. Gate agents were yelling instead of using the PA system, didn’t communicate the timing delay of our flight, and created an atmosphere of chaos rather than order and communication. As far as I know, there was no reason for their. I would hate to see how it operated under extreme conditions. I’ve never seen United Airlines operations in such a state.

The flight did not have its customary snacks during the flight. Apparently they were never loaded on the plane.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

It would have helped if I knew it would be air Canada jazz/rouge. The flight was ok but the planes are older and smaller with no entertainment. Fitting the carry one every one had was tricky and made the process longer. Overall it was ok but I actually booked a company other than air Canada and got them which was disappointing.I prefer American or overseas airlines over Canadian because the experience is usually better

It was poor a four hour delay and no explanation for the delay. What’s a 35 dollars going to do. It also made me miss my car rental,

It was on time. Flight was comfortable. Staff was nice. It was the way a flight should always be.

The price was the only good thing about this flight. It was scary during takeoff when the plane tilted side to side. It made me feel very nervous as I have never had a take-off that unsmooth. There was no on-flight movie or music options and the only complimentary option was water. Other airlines offer trail mix or a caramel cookie and pop options as complimentary. This flight was a 2.5 hour flight. I understand for shorter flights not having options, but a flight 2 hours or longer should offer more complimentary options and in flight entertainment. Also the seats did not recline and for a longer flight reclining seats are a must for comfort.

A very pleasant flight but it would be greatly improved with wifi to help entertain kids

This is a no frills, get it done, efficient airline. The seat is a lawn chair. You better bring your own entertainment. If you want something other than water you need to pay for it. But they will get you to your destination quickly, on time, and then they will turn the flight around and go right back where they came from. Reliably. Couple times a week tops. If it fits into your schedule, you can’t get there cheaper or faster.

A three hour delay to board and then another hour on the tarmac because they couldn't get a tractor? Ugh.

Allegiant canceled the flight. The flight the next day was full. Allegiant did not provide any compensation besides a refund. Last time on Allegiant.

Seats were very uncomfortable and being charged for snacks and water.........

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Leave on time. We waited on the plane for hour hours and it was hot and smelly

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

Human interaction. Thought there would be more service-even a smile would have been nice.

It was the most un-special flight experience in my life.

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

The plane was very warm and the crew turned on the lights for the entire snack service.

It is okay. Flight was on time to start and early to land

The gate crew did try to help, however they lacked the information as to whether the flight will operate or not. Being delayed 6 hours and in a limbo on whether the flight will operate or not is not fun. The airline having staffing issues is not encouraging at all.

Gossipy flight attendants talked the whole flight about bar hopping and dating.

Terrible. Delayed my family flight for several hours affecting family plans

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

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

I missed a flight because of a delay. I had to buy a new ticket through Southwest.

Bag should not be so much money. This is how Frontier takes advantage of customers

An absolutely fraudulent experience. Extremely unprofessional. Terrible in all ways possible. Rude staff, flight attendants, and deceptive "policies."

Frontier is definitely a good option for people traveling light or on a budget - just remember to bring your own entertainment and your own headphones if you need them.

Never offer anything to drink ☹️ Flight delayed gate moved poor communication

It’s a cheap airline. I wish they had better seats.

Seats are cramped and very uncomfortable. You have to pay for everything and it is too expensive.

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

Information on your arrival and departure airports