WAS - SYD

$795 Find Cheap Flights from Washington, D.C. to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Sydney departing on 19/6. 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 Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sydney, 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 Sydney, as well as popular online travel agencies
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Cheap Flight Deals from Washington, D.C. to Sydney (WAS-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Washington, D.C. to Sydney 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 return flight deals from Washington, D.C. to Sydney

KAYAK's recommended return flight deals from the most popular airlines that fly from Washington, D.C. to Sydney.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
 Logo
14:14 - 12:15BWI-SYD
32h 01m2 stops
 Logo
06:00 - 23:44SYD-BWI
31h 44m3 stops
$1,730
Find Deal
Thu, 5 Jun - Thu, 12 Jun
 Logo
12:51 - 12:15BWI-SYD
33h 24m3 stops
 Logo
06:00 - 23:44SYD-BWI
31h 44m3 stops
$1,870
Find Deal
Thu, 5 Jun - Thu, 12 Jun
Air New Zealand Logo
17:55 - 10:35IAD-SYD
26h 40m2 stops
Air New Zealand Logo
11:50 - 00:30SYD-IAD
26h 40m2 stops
$1,885Air New Zealand
Find Deal
Tue, 12 Aug - Tue, 26 Aug
Air New Zealand Logo
14:50 - 08:45BWI-SYD
27h 55m2 stops
Air New Zealand Logo
08:45 - 05:48SYD-BWI
36h 03m2 stops
$1,885Air New Zealand
Find Deal
Tue, 2 Sep - Tue, 7 Oct
Fiji Airways Logo
18:59 - 11:45DCA-SYD
26h 46m2 stops
Fiji Airways Logo
13:15 - 23:04SYD-DCA
23h 49m2 stops
$1,920Fiji Airways
Find Deal
Tue, 13 May - Tue, 20 May
Fiji Airways Logo
19:30 - 11:45DCA-SYD
26h 15m2 stops
Fiji Airways Logo
14:45 - 23:00SYD-DCA
23h 15m2 stops
$1,971Fiji Airways
Find Deal
Sat, 27 Sep - Sat, 18 Oct
ANA Logo
12:15 - 10:25IAD-SYD
31h 10m1 stop
ANA Logo
21:45 - 15:40SYD-IAD
33h 55m1 stop
$2,006ANA
Find Deal
Mon, 20 Oct - Sun, 16 Nov
ANA Logo
12:15 - 09:25IAD-SYD
31h 10m1 stop
ANA Logo
20:55 - 10:05SYD-IAD
27h 10m1 stop
$2,007ANA
Find Deal
Tue, 26 Aug - Tue, 9 Sep
American Airlines Logo
14:09 - 06:05IAD-SYD
25h 56m2 stops
American Airlines Logo
12:10 - 22:30SYD-IAD
24h 20m1 stop
$2,362American Airlines
Find Deal
Sun, 14 Sep - Wed, 24 Sep
American Airlines Logo
09:14 - 06:55DCA-SYD
31h 41m1 stop
American Airlines Logo
12:10 - 18:59SYD-DCA
20h 49m1 stop
$2,362American Airlines
Find Deal
Sun, 14 Sep - Tue, 23 Sep

KAYAK's insights & trends for Washington, D.C. to Sydney flights

Get data-powered insights and trends into flights from Washington, D.C. to Sydney 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 Washington, D.C. to Sydney?

The average price of all round-trip flights from Washington, D.C. to Sydney clicked on KAYAK for each day over the last 12 months.
When flying from Washington, D.C. to Sydney, you should consider leaving on a Wednesday and avoid Thursdays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Washington, D.C. to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Sydney, 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. to Sydney is February, where tickets cost $1,439 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $2,785 and $2,405 respectively.

How far in advance should I book a flight from Washington, D.C. to Sydney?

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. to Sydney, 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. to Sydney, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low season

September

High season

December

Cheapest flight

$795
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly (42% more expensive on average)
Flight from Washington Dulles Airport to Sydney

When to book flights from Washington, D.C. to Sydney

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Sydney 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Sydney

  • What are the popular layovers for flights from Washington, D.C. to Sydney?

    Airlines with stopover options on Washington, D.C. to Sydney route stop in one or more cities. However, flight routes and layover durations vary among airlines. For this reason, consider checking the flight route before booking to avoid extended layovers. Most airlines have a layover in major cities, including Dallas, San Francisco, Houston, Vancouver, Los Angeles, Honolulu, Tokyo, Seoul, Beijing, New Delhi, Abu Dhabi, Doha, and Dubai.

  • What is the carry-on and checked luggage allowance for economy on cheap flights from Washington, D.C. to Sydney?

    Your carry-on and checked luggage policy depends on your airline. For ANA, the maximum dimensions for your carry-on are 22 x 16 x 10 inches. You can also bring another bag weighing up to 50 lb. If you book Air New Zealand, your carry-on shouldn’t exceed 22 x 14 x 9 inches. Your additional bag should weigh 50 lb at most. However, your bags must fit in the overhead cabin or beneath your seat.

  • What airlines offer sustainable travel from Washington, D.C. to Sydney?

    Singapore Airlines offers an eco-friendly journey on this route. These airlines cut food waste to achieve net zero carbon emissions by 2050. Cathay Pacific is committed to ensuring a greener environment by using sustainable aviation fuel to lower its carbon footprint.

  • What’s the best way to travel from SYD airport to downtown Sydney?

    One way to travel from SYD airport to downtown Sydney is to take the T3 or T8 trains to arrive in the city in around 17 minutes. If you take the N20 or 438X buses, you get to the city in approximately 25 minutes. A taxi or rental car offers a quick journey, about 15 minutes to the city.

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Sydney was $508 for a one-way ticket and $1,106 for a return.

  • Which airports will I be using when flying from Washington, D.C. to Sydney?

    On your way to Sydney, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Washington, D.C. to Sydney?

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

  • Which airline alliances offer flights from Washington, D.C. to Sydney?

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

  • How does KAYAK find such low prices on flights from Washington, D.C. to Sydney?

    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, D.C. to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Washington, D.C. 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, D.C. to Sydney?

    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 Sydney with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Sydney?

    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 Sydney from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Washington, D.C. to Sydney

  • Washington Dulles International Airport (IAD) is a hub for United Airlines. At the same time, Sydney Kingsford Smith International Airport (SYD) serves as a primary hub for Qantas. It’s also a secondary hub for Jetstar and Virgin Australia.
  • Japan Airlines offer an extensive array of special meals to meet passengers’ religious and health requirements. Those who need a special diet are required to order a meal at least 24h before take-off.
  • The Silver train offers a reliable journey from downtown via the subway to the airport in about 49 minutes. Another way to get to the airport from the city is taking the Virginia Breeze bus, which gets you to the airport terminal in around 1h 5min.
  • Suppose you upgrade to business class on cheap flights from Washington, D.C. to Sydney. In that case, you enjoy numerous amenities, including priority check-in and boarding, access to the VIP lounge, premium dining, complimentary snacks and drinks, inflight entertainment, amenity kits, and working space.
  • Besides Sydney, IAD airport serves several nearby cities. You can visit Botany to the east, Brighton-Le-Sands to the southwest, Wolli Creek to the northwest, and Rosebery to the northeast. You can board a public bus if you need a cheap way to get to these cities. Alternatively, you can rent a car at the airport to drive at your own pace.
See more tips

Top airline flying from Washington, D.C. to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Sydney. 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 Washington, D.C. to Sydney? 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.
7.2
American AirlinesOverall score based on 10000 reviews
8.0Crew
6.5Food
7.5Boarding
6.9Entertainment
7.2Comfort
Airline reviews

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

6.0 GoodAnonymous, Apr 2025PHX - SGU
Read more American Airlines reviews

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

British Airways staff are very polite and willing to help.

Any sort of gluten free snack option would be nice

They lost my luggage and it didn’t get delivered until the next day.

Everything you need to know for your flight from Washington, D.C. to Sydney

Information on your arrival and departure airports

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