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Cheap flights from Washington, D.C. Dulles Intl Airport to Sydney from $691

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Sydney departing on 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Sydney

Cheap return flights

Logo
20:19 - 14:40IAD-SYD
52h 21m2 stops
Logo
17:45 - 16:25SYD-IAD
36h 40m1 stop
$1,954
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Wed, 13 Aug - Mon, 18 Aug
Logo
17:37 - 12:30IAD-SYD
27h 53m2 stops
Logo
14:30 - 22:18SYD-IAD
23h 48m2 stops
$2,035
Find Deal
Sat, 1 Nov - Sat, 15 Nov
Logo
17:40 - 22:10IAD-SYD
38h 30m2 stops
Logo
14:45 - 22:48SYD-IAD
23h 03m2 stops
$2,056
Find Deal
Sat, 27 Sep - Sat, 11 Oct
Air Canada Logo
12:41 - 07:20IAD-SYD
28h 39m2 stops
Air Canada Logo
09:20 - 21:05SYD-IAD
25h 45m2 stops
$2,092Air Canada
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Sun, 7 Sep - Sun, 21 Sep
Air Canada Logo
09:35 - 07:20IAD-SYD
31h 45m2 stops
Air Canada Logo
09:20 - 21:05SYD-IAD
25h 45m2 stops
$2,095Air Canada
Find Deal
Tue, 16 Sep - Tue, 30 Sep
Turkish Airlines Logo
21:40 - 19:00IAD-SYD
31h 20m2 stops
Turkish Airlines Logo
20:55 - 11:45SYD-IAD
52h 50m2 stops
$2,124Turkish Airlines
Find Deal
Tue, 26 Aug - Wed, 3 Sep
Turkish Airlines Logo
13:30 - 19:50IAD-SYD
38h 20m2 stops
Turkish Airlines Logo
21:45 - 11:45SYD-IAD
54h 00m2 stops
$2,125Turkish Airlines
Find Deal
Thu, 6 Nov - Tue, 25 Nov
Alaska Airlines Logo
20:19 - 19:45IAD-SYD
33h 26m2 stops
Alaska Airlines Logo
21:40 - 16:47SYD-IAD
33h 07m2 stops
$2,160Alaska Airlines
Find Deal
Thu, 14 Aug - Tue, 19 Aug
Air New Zealand Logo
12:55 - 10:30IAD-SYD
29h 35m2 stops
Air New Zealand Logo
11:45 - 22:12SYD-IAD
26h 27m2 stops
$2,174Air New Zealand
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Mon, 10 Nov - Sun, 23 Nov
Alaska Airlines Logo
19:59 - 19:45IAD-SYD
33h 46m2 stops
Alaska Airlines Logo
21:40 - 16:47SYD-IAD
33h 07m2 stops
$2,189Alaska Airlines
Find Deal
Tue, 12 Aug - Sat, 30 Aug

Air Canada flights from Washington, D.C. Dulles Intl Airport to Sydney

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Sydney flight tickets
Air Canada
7 Sept
IAD12:41Washington, D.C. Dulles Intl
28h 39m
2 stops
SYD07:20Sydney Kingsford Smith
21 Sept
SYD09:20Sydney Kingsford Smith
25h 45m
2 stops
IAD21:05Washington, D.C. Dulles Intl
$2,092
Find similar
Air Canada
16 Sept
IAD09:35Washington, D.C. Dulles Intl
31h 45m
2 stops
SYD07:20Sydney Kingsford Smith
30 Sept
SYD09:20Sydney Kingsford Smith
25h 45m
2 stops
IAD21:05Washington, D.C. Dulles Intl
$2,095
Find similar
Air Canada
14 Oct
IAD09:35Washington, D.C. Dulles Intl
31h 45m
2 stops
SYD08:20Sydney Kingsford Smith
28 Oct
SYD10:20Sydney Kingsford Smith
40h 03m
3 stops
IAD11:23Washington, D.C. Dulles Intl
$2,105
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Alaska Airlines flights from Washington, D.C. Dulles Intl Airport to Sydney

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to Sydney flight tickets
Alaska Airlines
14 Aug
IAD20:19Washington, D.C. Dulles Intl
33h 26m
2 stops
SYD19:45Sydney Kingsford Smith
19 Aug
SYD21:40Sydney Kingsford Smith
33h 07m
2 stops
IAD16:47Washington, D.C. Dulles Intl
$2,160
Find similar
Alaska Airlines
12 Aug
IAD19:59Washington, D.C. Dulles Intl
33h 46m
2 stops
SYD19:45Sydney Kingsford Smith
30 Aug
SYD21:40Sydney Kingsford Smith
33h 07m
2 stops
IAD16:47Washington, D.C. Dulles Intl
$2,189
Find similar
Alaska Airlines
14 Aug
IAD20:19Washington, D.C. Dulles Intl
33h 26m
2 stops
SYD19:45Sydney Kingsford Smith
21 Aug
SYD21:40Sydney Kingsford Smith
33h 07m
2 stops
IAD16:47Washington, D.C. Dulles Intl
$2,191
Find similar

See travel insights to Sydney from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

The month of April is, on average, the cheapest month to fly to Sydney from Washington, D.C. Dulles Intl Airport, with most prices found around $1,413. If you aren’t able to travel to Sydney during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,468.

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Tuesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,101. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $2,345.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Sydney in the morning for as low as $2,128. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,952 on average. Flights to Sydney from Washington, D.C. Dulles Intl Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,959 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Washington, D.C. Dulles Intl Airport for as low as $1,607 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Sydney flights?

You could potentially save up to 35% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Sydney flight.

How have Washington, D.C. Dulles Intl Airport to Sydney flight prices changed over time?

As of July 2025, prices for Washington, D.C. Dulles Intl Airport to Sydney flights are approximately 62% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. Dulles Intl Airport to Sydney (IAD to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Sydney

Best price found

$691

Fastest flight time

22h 01m

Direct flights

None

Airports in Sydney

1 airport
The best one-way flight to Sydney from Washington, D.C. Dulles Intl Airport in the past 72 hours is $691. The best return flight deal from Washington, D.C. Dulles Intl Airport to Sydney found on momondo in the last 72 hours is $1,954.
The fastest flight from Washington, D.C. Dulles Intl Airport to Sydney takes 22h 01m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Sydney. Popular non-direct route for this connection is Washington, D.C. Dulles Intl Airport - Sydney Kingsford Smith Airport.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)
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  • How far is Washington, D.C. Dulles Intl to Sydney Kingsford Smith by plane?

    There are 15665.3 km between Washington, D.C. Dulles Intl and Sydney Kingsford Smith. Flights usually cover this in 27h 14m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Sydney?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Sydney

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Sydney with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $2,198Free cancellationRating
7.4
8,863 reviews
Search United Airlines flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Terrigal
Katoomba
Lithgow
Penrith
Leura
Manly
Bondi Beach
Coogee
Randwick
Cronulla
Charlestown
Newport
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Sydney for you.

Can I find flights from Washington, D.C. to Sydney with flexible booking policies on momondo?

Yes. All flights to Sydney from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Sydney?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Sydney.

I’m not ready to book a flight from Washington, D.C. to Sydney right now. Can momondo alert me if prices change?

Price alerts on flights to Sydney from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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