IAD - AUS

$146 Find Cheap Flights from Washington Dulles Airport to Austin

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 4/24. 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 Austin

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

Cheapest round-trip
$288
Typical prices: $554-$408
Frontier
Mon 5/18Thu 5/28
IAD - AUS • 1 stop
Cheapest non-stop
$328
Typical prices: $584-$429
Allegiant Air
Fri 5/22Mon 5/25
IAD - AUS • 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 on this route.
For a smooth departure, use IAD's AeroTrain at peak times.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with United Airlines and Allegiant Air. Average duration is 3h 51m
Direct flights
Direct flights
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+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 56% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Austin!
Flight Deals
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Expert advice
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

Mon, May 18 - Thu, May 28
Frontier Logo
7:40 am - 1:04 pm
IAD
-
AUS
6h 24m
1 stop
Frontier Logo
9:13 pm - 10:12 am
AUS
-
IAD
11h 59m
2 stops
$288Frontier
Fri, May 22 - Tue, May 26
Multiple Airlines Logo
4:36 pm - 7:09 pm
IAD
-
AUS
3h 33mnonstop
Multiple Airlines Logo
5:47 pm - 5:27 pm
AUS
-
IAD
22h 40m
1 stop
$289Multiple Airlines
Sat, Jul 18 - Wed, Jul 22
Frontier Logo
6:49 am - 11:42 am
IAD
-
AUS
5h 53m
1 stop
Frontier Logo
1:59 pm - 11:17 pm
AUS
-
IAD
8h 18m
1 stop
$290Frontier
Mon, Apr 27 - Thu, Apr 30
Multiple Airlines Logo
6:00 am - 11:40 pm
IAD
-
AUS
18h 40m
2 stops
Multiple Airlines Logo
5:40 pm - 12:36 am
AUS
-
IAD
5h 56m
1 stop
$291Multiple Airlines
Fri, May 22 - Sat, May 23
Multiple Airlines Logo
4:36 pm - 7:09 pm
IAD
-
AUS
3h 33mnonstop
Multiple Airlines Logo
12:44 pm - 11:09 pm
AUS
-
IAD
9h 25m
1 stop
$292Multiple Airlines
Fri, May 22 - Wed, May 27
Frontier Logo
8:47 pm - 11:49 am
IAD
-
AUS
16h 02m
1 stop
Frontier Logo
9:13 pm - 4:21 pm
AUS
-
IAD
18h 08m
2 stops
$293Frontier
Thu, May 7 - Sun, May 10
Frontier Logo
11:07 am - 4:52 pm
IAD
-
AUS
6h 45m
1 stop
Frontier Logo
5:47 pm - 5:12 pm
AUS
-
IAD
22h 25m
1 stop
$294Frontier
Mon, May 18 - Fri, May 29
Multiple Airlines Logo
7:40 am - 1:04 pm
IAD
-
AUS
6h 24m
1 stop
Multiple Airlines Logo
10:59 am - 9:01 pm
AUS
-
IAD
9h 02m
2 stops
$295Multiple Airlines
Thu, May 14 - Tue, May 19
Multiple Airlines Logo
5:26 pm - 9:31 am
IAD
-
AUS
17h 05m
2 stops
Multiple Airlines Logo
5:47 pm - 10:12 am
AUS
-
IAD
15h 25m
1 stop
$296Multiple Airlines
Mon, Jun 29 - Sat, Jul 4
Multiple Airlines Logo
4:27 pm - 6:42 pm
IAD
-
AUS
3h 15mnonstop
Multiple Airlines Logo
12:44 pm - 11:17 pm
AUS
-
IAD
9h 33m
1 stop
$297Multiple 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 May.

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 Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday 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 Saturdays 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 $350 (return) on average. On the other hand, the most expensive months are March and February, where the average cost of round-trip tickets is $623 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $507 on average.

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 6 weeks before departure, which saves you about 56% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 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 seasonJanuary
Cheapest flight$146
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly and prices are also 15% 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

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Austin was $146 for a one-way ticket and $288 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 MAX 8 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 $409 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 $539 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 $252 or less one-way and $447 or less round-trip.

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

Allegiant Air,United Airlines

Allegiant Air,United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

Allegiant Air,United Airlines

Allegiant Air,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

Allegiant Air,United Airlines

Allegiant Air,United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

Allegiant Air,United Airlines

Allegiant Air,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.
7.9
DeltaOverall score based on 8404 reviews
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
7.9Comfort
Airline reviews

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

8.0 ExcellentBarbie, Apr 2026
BOS - SFO
Read more Delta reviews

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

No entertainment. Plane was so small had to pink tag a carry on ive used for 20 years easily on board. The fact the flight got in at midnight, had to wait for crew in fort wayne to allow the plane to approach the gate, THEN had to wait for bag on jet bridge made experience irritating at best.

Crew was great. Near on time departure and early arrival. Snacks are always meh. Not a fan of the "pay for everything including miles " proposal unless base flight rate going to be 100 bucks.

Would have been better if there was a nonstop flight from Tampa to Norfolk or Tampa to New Port News.

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

The flight was smooth, the crew was great but the plane was quite old

Everything was great until I lost my water bottle and they can’t seem to locate it. I know I left it on the plane though.

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Okay considering we had weather delays which the Pilot notified us of immediately!

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

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.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

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.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

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

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

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

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

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

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

They switched our terminal 3 times and we were delayed for four plus hours!!!

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.

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

Information on your arrival and departure airports