IAD

$653 Find Cheap Flights to Washington Dulles Airport – 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 to Dulles Intl departing on 8/9. 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 return fare
$1,339
Typical prices: $1,511-$1,972
Multiple Airlines
Tue 8/9Tue 29/9
SYD - IAD • 2 stops
Cheapest one-way flight
$653
Typical prices: $905-$1,623
Multiple Airlines
Tue 8/9
SYD - IAD • 3 stops
Top routes
Insights
Insights
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Insights
When to travel
Cheapest • 15% price drop
Most popular
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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 return flight deals to Dulles Intl

Tue, 8 Sep - Tue, 29 Sep
Multiple Airlines Logo
09:10 - 05:01SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
33h 51m2 stops Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
11:12 - 07:05IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
29h 53m2 stops Orlando Los Angeles
$1,339Multiple Airlines
Tue, 29 Sep - Mon, 19 Oct
Air Canada Logo
10:00 - 07:43BNE  Brisbane-IAD Washington, D.C. Dulles Intl
35h 43m2 stops Vancouver Intl Ottawa
Air Canada Logo
08:15 - 07:05IAD  Washington, D.C. Dulles Intl-BNE Brisbane
32h 50m2 stops Ottawa Vancouver Intl
$1,407Air Canada
Thu, 3 Sep - Sun, 27 Sep
Air Canada Logo
10:15 - 16:35BNE  Brisbane-IAD Washington, D.C. Dulles Intl
44h 20m2 stops Vancouver Intl Ottawa
Air Canada Logo
22:10 - 07:05IAD  Washington, D.C. Dulles Intl-BNE Brisbane
42h 55m2 stops Ottawa Vancouver Intl
$1,411Air Canada
Tue, 8 Sep - Tue, 29 Sep
Multiple Airlines Logo
09:10 - 05:01SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
33h 51m2 stops Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
11:12 - 07:05IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
29h 53m2 stops Orlando Los Angeles
$1,455Multiple Airlines
Wed, 2 Sep - Wed, 9 Sep
Air New Zealand Logo
08:35 - 00:30MEL  Melbourne-IAD Washington, D.C. Dulles Intl
29h 55m2 stops Auckland Intl Houston George Bush Intcntl
Air New Zealand Logo
18:00 - 13:45IAD  Washington, D.C. Dulles Intl-MEL Melbourne
29h 45m2 stops San Francisco Auckland Intl
$1,935Air New Zealand
Thu, 17 Sep - Tue, 22 Sep
Air New Zealand Logo
09:55 - 00:30SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
28h 35m2 stops Auckland Intl Houston George Bush Intcntl
Air New Zealand Logo
18:00 - 08:45IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
24h 45m2 stops San Francisco Auckland Intl
$1,938Air New Zealand
Wed, 9 Sep - Sun, 20 Sep
Qantas Airways Logo
12:00 - 20:24SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
22h 24m1 stop Dallas/Fort Worth
Qantas Airways Logo
19:35 - 06:55IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
21h 20m1 stop Dallas/Fort Worth
$2,228Qantas Airways
Mon, 7 Dec - Sun, 24 Jan
American Airlines Logo
11:20 - 22:43SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
27h 23m2 stops Los Angeles Dallas/Fort Worth
American Airlines Logo
06:10 - 09:00IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
34h 50m1 stop Los Angeles
$2,261American Airlines
Tue, 8 Dec - Sun, 24 Jan
American Airlines Logo
11:20 - 05:00SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
33h 40m1 stop Los Angeles
American Airlines Logo
06:10 - 09:00IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
34h 50m1 stop Los Angeles
$2,261American Airlines
Sun, 20 Sep - Fri, 25 Sep
Qantas Airways Logo
12:00 - 18:44SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
20h 44m1 stop Dallas/Fort Worth
Qantas Airways Logo
16:56 - 06:55IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
23h 59m1 stop Dallas/Fort Worth
$2,427Qantas Airways
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

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

What is the cheapest flight to Washington Dulles Airport?

These are the best return prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Sydney, at $1,339 return. The most popular connection is from Melbourne to Washington Dulles Airport, while KAYAK users have found return deals for as low as $1,518 in the last 5 days.

What is the cheapest month to fly 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 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 to Washington, D.C. Dulles Intl Airport is November, where tickets cost $1,553 on average for return flights. On the other hand, the most expensive months are April and June, where the average cost of tickets from Australia is $2,363 and $2,219 respectively. For one-way flights, the best month to travel is September with an average price of $972.

Good to know – Book Cheap Washington, D.C. Dulles Intl Airport Plane Tickets

Low season

March

Cheapest flight

$653
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from Sydney to Washington Dulles Airport

When to book flights to Dulles Intl

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

FAQs - booking Washington Dulles Airport flights

  • What is the cheapest flight to Washington Dulles Airport?

    In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Sydney, at $1,339 return. The most popular connection is from Melbourne to Washington Dulles Airport, while KAYAK users have found return deals for as low as $1,518 in the last 5 days.

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    The distance between Washington, D.C. Dulles Intl Airport and the city centre of Washington, D.C. is 36 km.

  • How does KAYAK find such low prices on flights 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 to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travellers know whether to wait or book now.

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington Dulles Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Washington Dulles Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top 5 airlines flying to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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.
8.0
Fiji AirwaysOverall score based on 251 reviews
8.5Crew
8.0Comfort
7.4Entertainment
7.4Food
8.0Boarding
Airline reviews

Poor food options for vegi folks n not enough food quantity. Fiji really needs to improve on it. Flight crew is very warm and respectful but don’t know how to cater towards vegi folks n items despite so many Indians staying in Fiji

6.0 GoodNeeta, June 2026
Read more Fiji Airways reviews

Poor food options for vegi folks n not enough food quantity. Fiji really needs to improve on it. Flight crew is very warm and respectful but don’t know how to cater towards vegi folks n items despite so many Indians staying in Fiji

I thought Fiji and Fiji Airways was great. Looking forward to the next trip. Baggage claim at the end went to sh...t

Left on time , arrived on time. Staff was awesome!!!!! Great flight!!!!

Great food, wonderful staff made a long flight seem short

We have had an absolutely horrific experience so far getting home from Australia on a $18,000 + flight we booked with you. The flight did not deplane in Dallas because there was no available gate or staircase. We sat in the plane for 3 hours waiting to deplane. As a result we missed our connecting flight to New York. American Airlines put us up in a hotel several miles away. We waited 45 minutes for a shuttle and The shuttle driver was horribly rude and unhelpful. They offered us $70 vouchers for food but actually there was no food left when we arrived minus some chicken nuggets and corn dogs. It was awful. Horrible way to end a vacation. There has to be accountability here.

A bit cramped in economy and the people in front wouldn’t put their seats up during meal service, crew did not help with that and I felt they could have done more about it.

The airline is ok, but it needs to improve it schedules.

In-flight entertainment options could use a refresh, Consider a tie-up with Spotify for more current music and with IMDB or other service for newer selections/movie ratings.

6 hour delay and they didnt try to make up any time during an over 10 hour flight

Entertainment was not good. Seems like liquor should’ve been advertised only beer and wine was even though I saw others getting liquor didn’t realize I could. And the food to me could’ve been a little bit.

Time to upgrade those planes so you can provide first class.

The flight was smooth and on time. Entertainment options were lacking and there was no food, other than some very boring snacks.

A better selection of entertainment would have been nice. I found nothing that appealed to me as a middle-aged traveler. The flight attendants were gracious, helpful, and attentive. It also would have been nice to have more bathrooms as the flight was full and the plane was big.

This flight was the second leg of a trip that began in Auckland, New Zealand. I was unable to find a way to select seats in advance. The boarding passes we were given in Auckland did not have seat assignments for the second flight. There was no way to check on it until personnel showed up at the gate in Los Angeles, immediately before boarding time. The flight was overbooked by one, and since I was traveling with my sister, we needed two seats. We waited in considerable anxiety for everyone else to board and when one person did not show up, we had to take whatever was left. At least we finally got on the flight although we were the very last to board. We were not able to sit together, of course.

The Premium Economy seats were very comfortable and the food was quite tasty. I did not use the entertainment system, but I was able to charge my phone and tablet with the seatback connection.

We had difficulty checking in as United didn’t recognize the confirmation number and the agent was not helpful. We went to the United Assistance desk where the agent was able to process our reservation. We also weren’t allowed to choose seats in advance.

Air New Zealand over sold our flight and tried to bump us to yesterday. After several calls we got booked to United about 6 hrs before our original flight. No apologies!

Very quick flight so no time for refreshments. We took off. Then landed. The end. Seats were too tight. Very cramped Grateful for the short flight cos moving around wasn’t possible

Please add more Bollywood movies and recent movies to the entertainment.

Couldn’t request a vegan meal somehow but I noticed other people getting them

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

Flight attendants were great. Food mediocre. Bamboo utensils not Great especially if you have to cut something. Seating a bit crowded.

The crew was the worst ive ever had in my life flying with United Airlines, letting another person move my bag without asking and then the staff saying would the floor be better after I kept begging saying dont move my bag it has fragile things inside. This incident truly makes me they favor other customers more and I dont want to worry about being on the tail end. Especially if they dont listen any input, no care for what I asked but accommodated those who are reckless and disturb others more...

The flight was over an hour delayed. The problem was they had the wrong aircraft at the gate, Joe in the world does that happen?

On time departure & early arrival. Made a long day much better.

Like all planes recently, entertainment is achieved by giving the patron free WiFi and letting them stream shows via the screen on a phone or tablet.

Crew and agents misguiding on tight connections, and lack of connecting crew looking for inbound planes. A very avoidable missed connection as a result.

My flight was 4 hours delayed on departure at 6a causing me to miss my connection at DCA. I had to scramble to find a seat home on a later flight and instead of an exit seat, I was in row 30 on a flight getting me home 5 hours later than planned. The AA team on the ground did a fine job. AA continues to run the airline like the passengers are cargo.

American Airlines changed are gate no fewer than four times. Walking back and forth from one concourse to another was exhausting, especially after all the flight delays.

Hydraulic leak caused the flight to be cancelled. Auto system scheduled us on a 3 am flight. Wevhsedvrebook on the app and hit schedules later in the afternoon. Our luggage per gate and ticket agent would be rescanned and put in our new flight. Did not happen. Our luggage stayed in hsv. Baggage claim in wash dc unable to help. We filed a claim. Several emails about our luggage were in conflict with one another. Called as baggage and was on hold 30 minutes. Oscar said one of 2 was out fir delivery then cancelled. About 45 minutes later both pieces were delivered. Their system is suspect

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

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

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

Economy seats always cramped, no meal on international flight, no plugs for electronics, but we got there and cabin crew was excellent.

Pros: The airplane was new and had in-flight entertainment (tablet behind seats) with new movies instead of watching on personal devices. Cons: the flight time was changed without informing us. When I booked the flight, the time was 13:30pm (also in the email confirmation). However, when I reached the airport, the time was conveniently changed to 14:55pm. When I asked at the counter, they said the flight always took off at this time. The booking was made by Air Canada, but the flight was operated by United.

My flight got delayed 5 times and then got cancelled eventually, I had to get a hotel and uber and pay for food for an extra night without any plans. It was a horrible experience, instead of Air Canada, I was flying with United .

Super. Planes were clean. Flights were on time. boarding was smooth. Flight attendants were professional.

Flight was delayed by 45 min. No problems. Everyone took it in stride.

The Flight Attendant was particularly helpful to my wife, who was having a bad day.

We had no idea that you had to check in with United so we were waiting at a closed Air Canada window for about an hour before we found out we had to us United.

Boarding staff provided up-to-date flight information. They were professional and courteous. The flight was on-time and comfortable (adequate leg room). Early landing and orderly exited the aircraft. Ground baggage handlers were quick to offload carry-on bags. GREAT EXPERIENCE WITH HK EXPRESS

I appreciated the flight was on schedule but the crew told us that the flight would be delayed because of an air craft queue to take off. Instead of us arriving at 11.55pm, we were in Toronto at something past 2am which was a massive disadvantage on my part.

Travelling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Alexandria
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Greenbelt
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Easton
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Linthicum Heights
Hunt Valley
Annapolis
Great Falls
Bethesda
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Laurel
Cambridge
Towson
Warrenton
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Everything you need to know for your flight to Dulles Intl

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