IAD - SYD

$632 Find Cheap Flights from Washington Dulles Airport to Sydney - 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 Sydney departing on 10/31. 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

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Everything you should know

Cheapest round-trip
$1,097
Typical prices: $1,261-$2,211
Multiple Airlines
Wed 9/16Wed 9/23
IAD - SYD • 3 stops
Cheapest one-way
$621
Typical prices: $798-$1,138
Multiple Airlines
Sat 10/31
IAD - SYD • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Sydney. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $858 (round-trip)
Shortest trip • 20h 43m (one-way)
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When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 8% compared to booking last minute.
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When to travel
Cheapest • 35% price drop
Most popular
Good to know
Good to know
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Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Sydney (IAD-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Sydney

Wed, Sep 16 - Wed, Sep 23
Multiple Airlines Logo
11:12 am - 11:50 am
IAD
-
SYD
34h 38m
3 stops
Multiple Airlines Logo
1:15 pm - 10:27 am
SYD
-
IAD
35h 12m
3 stops
$1,097Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
Multiple Airlines Logo
11:12 am - 11:50 am
IAD
-
SYD
34h 38m
3 stops
Multiple Airlines Logo
1:15 pm - 6:20 am
SYD
-
IAD
31h 05m
3 stops
$1,111Multiple Airlines
Wed, Nov 4 - Mon, Nov 9
Qantas Airways Logo
4:39 pm - 6:55 am
IAD
-
SYD
22h 16m
1 stop
Qantas Airways Logo
2:05 pm - 6:19 pm
SYD
-
IAD
20h 14m
1 stop
$1,213Qantas Airways
Wed, Nov 18 - Wed, Dec 2
Qantas Airways Logo
4:39 pm - 6:55 am
IAD
-
SYD
22h 16m
1 stop
Qantas Airways Logo
2:05 pm - 10:43 pm
SYD
-
IAD
24h 38m
1 stop
$1,213Qantas Airways
Sun, Aug 9 - Sun, Aug 23
United Airlines Logo
9:37 am - 7:00 am
IAD
-
SYD
31h 23m
1 stop
United Airlines Logo
10:20 am - 9:22 pm
SYD
-
IAD
25h 02m
1 stop
$1,245United Airlines
Wed, Sep 23 - Sun, Oct 4
United Airlines Logo
6:00 pm - 6:55 am
IAD
-
SYD
22h 55m
1 stop
United Airlines Logo
10:30 am - 4:21 pm
SYD
-
IAD
20h 51m
1 stop
$1,245United Airlines
Sat, Oct 31 - Thu, Nov 12
Air New Zealand Logo
4:20 pm - 8:35 am
IAD
-
SYD
25h 15m
2 stops
Air New Zealand Logo
11:50 am - 8:49 pm
SYD
-
IAD
24h 59m
2 stops
$1,384Air New Zealand
Sun, Aug 23 - Sun, Aug 30
American Airlines Logo
1:23 pm - 7:30 am
IAD
-
SYD
28h 07m
2 stops
American Airlines Logo
9:10 am - 10:52 pm
SYD
-
IAD
27h 42m
2 stops
$1,396American Airlines
Wed, Nov 4 - Wed, Nov 11
American Airlines Logo
4:39 pm - 9:00 am
IAD
-
SYD
24h 21m
2 stops
American Airlines Logo
2:05 pm - 8:54 pm
SYD
-
IAD
22h 49m
2 stops
$1,396American Airlines
Thu, Oct 15 - Mon, Oct 19
Air New Zealand Logo
12:58 pm - 8:45 am
IAD
-
SYD
28h 47m
2 stops
Air New Zealand Logo
11:55 am - 10:09 pm
SYD
-
IAD
25h 14m
2 stops
$1,518Air New Zealand
Booking Insights

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

Get data-powered insights and trends into flights from Dulles Intl to Sydney 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 Sydney?

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 Sydney departing in September.

Flight prices are typical for this route right now.

Flights to Sydney from Washington, D.C. Dulles Intl Airport usually cost between $827 and $1,854 in September.
The lowest price found in the past 5 days was $1,097 on Multiple Airlines (Sep 16-Sep 23).

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Sydney is November, where tickets cost $1,040 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $2,260 and $1,992 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Sydney, you should book around 2 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low season

April

Cheapest flight

$632
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from Washington Dulles Airport to Sydney

When to book flights from Dulles Intl to Sydney

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

  • Which airlines are suitable for families flying from Washington Dulles Airport to Sydney?

    Families with children traveling from Washington Dulles Airport to Sydney should consider traveling with Qantas Airways. They provide activity packs filled with games, puzzles, coloring books, and other fun items to keep young passengers entertained during the flight. Qantas Airways also offers a dedicated children's inflight entertainment section featuring a variety of movies, TV shows, and music suitable for different age groups.

  • Which airline should I book for an unaccompanied minor flying from Washington Dulles Airport to Sydney?

    United Airlines is a great option for an unaccompanied kid traveling from Washington Dulles Airport to Sydney. According to United Airlines regulation, a child between the ages of 5 and 15 are permitted to fly alone as long as they have parental or guardian consent and can show identification. A passport or a driver's license with a current photo is required from parents or guardians. In addition, parents or guardians must complete the Unaccompanied Minors Form in person at the airport of departure.

  • Which airline from Washington Dulles Airport to Sydney is ideal for persons with special needs?

    If you have special needs and require extra assistance, fly on Qantas Airways from Washington Dulles Airport to Sydney. The airline assists passengers who require mobility aid, including wheelchair assistance, during boarding and disembarkation. They provide accessible seating options and priority boarding for passengers who need extra time or assistance. Passengers with visual impairments can request assistance with Braille safety cards and cabin announcements.

  • Which airlines offer business and first-class flights from Washington Dulles Airport to Sydney?

    Business and first-class flights are available from Washington Dulles Airport to Sydney on United Airlines and Qantas Airways. United Airlines provides pre-departure refreshments, premium entertainment, and bedding from Saks Fifth Avenue. Qantas Airways offers first-class, business-class, and premium economy flights with great service, gourmet meals, and an extensive wine list.

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Sydney was $621 for a one-way ticket and $1,097 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Sydney.

  • Which airports will I be using when flying from Washington Dulles Airport to Sydney?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Sydney, also known as Sydney Kingsford Smith.

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

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

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

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

  • What is the most popular layover when flying to Sydney from Washington Dulles Airport?

    Dallas is the most popular layover city among KAYAK users traveling from Washington Dulles Airport to Sydney.

  • Which is the best airline for flights from Washington, D.C. to Sydney, Air New Zealand or Qantas Airways?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Sydney are Air New Zealand and Qantas Airways. With an average price for the route of $1,858 and an overall rating of 8.0, Air New Zealand is the most popular choice. Qantas Airways is also a great choice for the route, with an average price of $1,545 and an overall rating of 7.5.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney 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 Sydney?

    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 Sydney with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SYD 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 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 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 Sydney

  • Passengers flying from Washington Dulles Airport (IAD) to Sydney will land at Sydney Airport (SYD). Sydney Airport (SYD) is a base for Qantas Airways, which offers competitive prices and flexible travel policies for flights from IAD to SYD.
  • You can get flights from Washington Dulles Airport to Sydney with a layover en route. The layovers differ with your airline, with most stopping at their hubs or base of operation. United Airlines and American Airlines flights have a layover at Los Angeles (LAX) and San Francisco (SFO), respectively, while ANA flights stop in Tokyo (HND).
  • Qantas Airways provides sustainable flights to Sydney from Washington Dulles Airport. Qantas Airways prioritizes sustainability in its operations and invest in eco-friendly aircraft technology. The airline is committed to reducing greenhouse gas emissions, improving fuel efficiency, and investing in sustainable aviation fuels. They prioritize aircraft fleet renewal with more fuel-efficient and lower-emission planes.
  • United Airlines has pet-friendly policies for flights from Washington Dulles Airport to Sydney. Pets are permitted in the cabin or cargo hold in an authorized kennel or carrier. The kennel or carrier should be leak-proof, well-ventilated, and have enough space for the pet. The carrier's maximum size and weight limits are 17 x 12.5 x 7.5 inches and 17 lb, respectively.
  • Public transport options from SYD to downtown Sydney include the train and bus. Train T8 runs every 5 minutes from the airport station to downtown Sydney. Murrays Coaches operates a bus that runs every hour from the Terminal 1 bus stop to downtown Sydney.

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

Information on your arrival and departure airports