SYD - IAD

$505 Find Cheap Flights from Sydney 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 Sydney to Dulles Intl departing on 6/5. 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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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 Sydney 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 Sydney to Washington, D.C., as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Sydney to Dulles Intl (SYD-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney 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.

Recent round-trip flight deals from Sydney to Dulles Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Sydney to Dulles Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
7:40 pm - 9:21 pmSYD-IAD
39h 41m2 stops
 Logo
10:05 pm - 2:50 pmIAD-SYD
74h 45m2 stops
$1,204
Find Deal
Fri, Aug 15 - Sun, Aug 31
American Airlines Logo
9:10 am - 8:38 amSYD-IAD
37h 28m2 stops
American Airlines Logo
1:08 pm - 7:05 amIAD-SYD
27h 57m2 stops
$1,259American Airlines
Find Deal
Mon, Jun 9 - Mon, Jun 30
ANA Logo
11:50 am - 10:05 amSYD-IAD
36h 15m1 stop
ANA Logo
12:15 pm - 8:15 pmIAD-SYD
41h 00m1 stop
$1,298ANA
Find Deal
Tue, May 20 - Tue, Mar 31
ANA Logo
12:50 pm - 10:05 amSYD-IAD
36h 15m1 stop
ANA Logo
12:10 pm - 10:30 amIAD-SYD
31h 20m1 stop
$1,315ANA
Find Deal
Thu, Oct 9 - Thu, Oct 30
Air New Zealand Logo
9:55 am - 10:18 pmSYD-IAD
26h 23m2 stops
Air New Zealand Logo
5:53 pm - 8:45 amIAD-SYD
24h 52m2 stops
$1,339Air New Zealand
Find Deal
Wed, Jul 16 - Mon, Jul 28
Air New Zealand Logo
11:50 am - 12:45 amSYD-IAD
26h 55m2 stops
Air New Zealand Logo
12:35 pm - 8:45 amIAD-SYD
30h 10m2 stops
$1,350Air New Zealand
Find Deal
Tue, Jun 10 - Mon, Jun 30
United Airlines Logo
11:20 am - 6:52 pmSYD-IAD
22h 32m1 stop
United Airlines Logo
6:55 pm - 9:05 amIAD-SYD
22h 10m1 stop
$1,436United Airlines
Find Deal
Wed, Oct 8 - Sun, Nov 2
United Airlines Logo
10:20 am - 4:23 pmSYD-IAD
20h 03m1 stop
United Airlines Logo
5:53 pm - 6:55 amIAD-SYD
23h 02m1 stop
$1,444United Airlines
Find Deal
Wed, Jul 16 - Tue, Jul 29
Virgin Australia Logo
9:30 am - 4:21 pmSYD-IAD
20h 51m1 stop
Virgin Australia Logo
10:17 pm - 7:00 amIAD-SYD
42h 43m1 stop
$1,680Virgin Australia
Find Deal
Wed, Jul 16 - Sat, Jul 26
Virgin Australia Logo
9:30 am - 4:21 pmSYD-IAD
20h 51m1 stop
Virgin Australia Logo
3:00 pm - 6:55 amIAD-SYD
25h 55m1 stop
$1,729Virgin Australia
Find Deal
Wed, Aug 13 - Sat, Aug 23
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KAYAK's insights & trends for Sydney to Dulles Intl flights

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

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

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

Your flight ticket price will generally be cheaper if you fly to Washington Dulles Airport on a Tuesday and more expensive on a Friday. On your return trip to Sydney, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

What is the cheapest month to fly from Sydney 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 Sydney 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 Sydney to Washington, D.C. Dulles Intl Airport is March, where tickets cost $1,049 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,608 and $1,439 respectively.

How far in advance should I book a flight from Sydney 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 Sydney 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 Sydney to Washington, D.C. Dulles Intl Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonJanuary
High seasonSeptember
Cheapest flight$505
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Sydney to Washington Dulles Airport

When to book flights from Sydney to Dulles Intl

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

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

    In the last 3 days, the lowest price for a flight from Sydney to Washington, D.C. Dulles Intl Airport was $505 for a one-way ticket and $1,204 for a round-trip.

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

    Yes, you’ll need a passport to travel to Washington Dulles Airport from Sydney.

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

    We unfortunately don’t have that data for this specific route.

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

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

  • Which is the best airline for flights from Sydney to Washington, D.C., Virgin Australia or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sydney to Washington, D.C. are Virgin Australia and United Airlines. With an average price for the route of $1,911 and an overall rating of 7.5, Virgin Australia is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,476 and an overall rating of 7.4.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney 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 Sydney 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 Sydney 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 Sydney with another airline. Booking your flights between Sydney 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 Sydney 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 Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Sydney to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Sydney 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 Sydney 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.
7.5
Virgin AustraliaOverall score based on 400 reviews
6.4Food
7.5Comfort
8.2Crew
6.4Entertainment
7.7Boarding
Airline reviews

Gluten free options less explicit on business class, but great service

10.0 ExcellentLauren, Apr 2025SYD - ZQN
Read more Virgin Australia reviews

Gluten free options less explicit on business class, but great service

Very good… seems the virgin staff particularly in the lounge and in flight exceeded expectations.

I liked everything about the experience but would have liked some free snacks!

Crew was great but flight was delayed almost three hours due to a technical issue and we had to go back to the terminal and wait for another one.

Being told why we delayed three hours and not even given an apology by someone. Not a word. Not my airline of choice ever.

Checked Baggage line up was long but moved quickly, rest of the process, boarding, crew was excellent

Virgin has always provided a smooth and comfortable flight. This one was no different. Seats are comfortable. Staff are great. This is my favourite airline.

Virgin changed the flight to an Alliance flight. Smaller plane, tea coffee and water the only refreshments available and not sure what happened to the extra money I paid to sit in a selected seat with extra leg room. This is obviously a regular switch as it happened on our flight there and back. Do not recommend.

Late boarding, late departure due to weather and slow boarding, packed 5+hour flight, only 2 toilets for main cabin, tight leg room, no free food except tea, coffee, and water, arrived 75 minutes late.

Cramped, crowded flight, with no complimentary food except coffee, tea, or water.

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

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

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