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Cheap flights from Sydney to Washington, D.C. from $769

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Washington, D.C. departing on 15/10. 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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Cheap return flights

Qantas Airways Logo
12:10 - 18:56SYD-IAD
20h 46m1 stop
Qantas Airways Logo
18:04 - 06:55IAD-SYD
22h 51m1 stop
$1,697Qantas Airways
Find Deal
Sat, 23 Aug - Sun, 31 Aug
Air New Zealand Logo
09:55 - 22:15SYD-IAD
26h 20m2 stops
Air New Zealand Logo
08:35 - 08:45IAD-SYD
34h 10m2 stops
$1,703Air New Zealand
Find Deal
Sun, 24 Aug - Mon, 1 Sep
American Airlines Logo
12:10 - 22:43SYD-IAD
24h 33m1 stop
American Airlines Logo
11:47 - 07:05IAD-SYD
29h 18m2 stops
$1,715American Airlines
Find Deal
Mon, 1 Sep - Mon, 8 Sep
United Airlines Logo
11:20 - 21:25SYD-IAD
25h 05m2 stops
United Airlines Logo
06:00 - 07:00IAD-SYD
34h 00m3 stops
$1,746United Airlines
Find Deal
Tue, 14 Oct - Sun, 26 Oct
United Airlines Logo
10:30 - 05:38SYD-IAD
34h 08m1 stop
United Airlines Logo
07:00 - 09:15IAD-SYD
35h 15m2 stops
$1,761United Airlines
Find Deal
Thu, 16 Oct - Sat, 25 Oct
American Airlines Logo
12:10 - 18:56SYD-IAD
20h 46m1 stop
American Airlines Logo
06:34 - 07:05IAD-SYD
34h 31m2 stops
$1,775American Airlines
Find Deal
Sat, 23 Aug - Sun, 31 Aug
Air Canada Logo
09:20 - 06:31SYD-IAD
35h 11m1 stop
Air Canada Logo
08:28 - 07:20IAD-SYD
32h 52m2 stops
$1,888Air Canada
Find Deal
Thu, 18 Sep - Wed, 24 Sep
Air Canada Logo
09:20 - 21:12SYD-IAD
25h 52m2 stops
Air Canada Logo
17:22 - 07:20IAD-SYD
47h 58m2 stops
$1,964Air Canada
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Sun, 21 Sep - Tue, 23 Sep
ANA Logo
11:50 - 10:05SYD-IAD
36h 15m1 stop
ANA Logo
13:15 - 19:15IAD-SYD
40h 00m2 stops
$2,032ANA
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Tue, 2 Sep - Tue, 9 Sep
ANA Logo
20:55 - 10:05SYD-IAD
27h 10m1 stop
ANA Logo
12:15 - 09:25IAD-SYD
31h 10m1 stop
$2,054ANA
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Thu, 28 Aug - Wed, 10 Sep

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

Our best Air New Zealand deals on Sydney to Washington, D.C. Dulles Intl Airport flight tickets
Air New Zealand
24 Aug
SYD09:55Sydney Kingsford Smith
26h 20m
2 stops
IAD22:15Washington, D.C. Dulles Intl
1 Sept
IAD08:35Washington, D.C. Dulles Intl
34h 10m
2 stops
SYD08:45Sydney Kingsford Smith
$1,703
Find similar
Air New Zealand
25 Aug
SYD11:50Sydney Kingsford Smith
26h 40m
2 stops
IAD00:30Washington, D.C. Dulles Intl
2 Sept
IAD12:45Washington, D.C. Dulles Intl
30h 00m
2 stops
SYD08:45Sydney Kingsford Smith
$1,712
Find similar
Air New Zealand
7 Sept
SYD09:55Sydney Kingsford Smith
26h 20m
2 stops
IAD22:15Washington, D.C. Dulles Intl
12 Sept
IAD16:10Washington, D.C. Dulles Intl
26h 35m
2 stops
SYD08:45Sydney Kingsford Smith
$1,848
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Alaska Airlines flights from Sydney to Washington, D.C. Dulles Intl Airport

Our best Alaska Airlines deals on Sydney to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
2 Sept
SYD21:40Sydney Kingsford Smith
33h 29m
2 stops
IAD17:09Washington, D.C. Dulles Intl
26 Sept
IAD18:09Washington, D.C. Dulles Intl
35h 36m
2 stops
SYD19:45Sydney Kingsford Smith
$1,717
Find similar
Alaska Airlines
2 Sept
SYD21:40Sydney Kingsford Smith
33h 29m
1 stop
IAD17:09Washington, D.C. Dulles Intl
9 Sept
IAD18:09Washington, D.C. Dulles Intl
35h 36m
2 stops
SYD19:45Sydney Kingsford Smith
$2,046
Find similar
Alaska Airlines
12 Sept
SYD21:40Sydney Kingsford Smith
33h 12m
2 stops
IAD16:52Washington, D.C. Dulles Intl
26 Sept
IAD17:52Washington, D.C. Dulles Intl
35h 53m
2 stops
SYD19:45Sydney Kingsford Smith
$2,075
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momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 6 August 2025.
Use the filters below to find and compare flights from Sydney to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 23/8

12:10-18:56

1 stop20h 46m

Washington, D.C. Dulles Intl

Sun 31/8

18:04-06:55

1 stop22h 51m

$1,697

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 24/8

09:55-22:15

2 stops26h 20m

Washington, D.C. Dulles Intl

Mon 1/9

08:35-08:45

2 stops34h 10m

$1,703

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 1/9

12:10-22:43

1 stop24h 33m

Washington, D.C. Dulles Intl

Mon 8/9

11:47-07:05

2 stops29h 18m

$1,715

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 14/10

11:20-21:25

2 stops25h 05m

Washington, D.C. Dulles Intl

Sun 26/10

06:00-07:00

3 stops34h 00m

$1,746

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 16/10

10:30-05:38

1 stop34h 08m

Washington, D.C. Dulles Intl

Sat 25/10

07:00-09:15

2 stops35h 15m

$1,761

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 23/8

12:10-18:56

1 stop20h 46m

Washington, D.C. Dulles Intl

Sun 31/8

06:34-07:05

2 stops34h 31m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 18/9

09:20-06:31

1 stop35h 11m

Washington, D.C. Dulles Intl

Wed 24/9

08:28-07:20

2 stops32h 52m

$1,888

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 21/9

09:20-21:12

2 stops25h 52m

Washington, D.C. Dulles Intl

Tue 23/9

17:22-07:20

2 stops47h 58m

$1,964

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 2/9

11:50-10:05

1 stop36h 15m

Washington, D.C. Dulles Intl

Tue 9/9

13:15-19:15

2 stops40h 00m

$2,032

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 28/8

20:55-10:05

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 10/9

12:15-09:25

1 stop31h 10m

$2,054

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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

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 typical price of a round-trip flight between Sydney and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

The cheapest month to fly to Washington, D.C. Dulles Intl Airport from Sydney is in March. Flight prices, which tend to average around $1,622, are often lower during this time because this is during the off-season. If you’re not able to fly to Washington, D.C. Dulles Intl Airport in March, then August is your next best option. Flight prices from Sydney to Washington, D.C. Dulles Intl Airport during August average around $1,737.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Friday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Sydney. The lowest ticket price found for a Friday departure recently was $2,054. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Saturday is $2,259.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is in the morning when flights can be purchased for as low as $2,123. Flights to Washington, D.C. Dulles Intl Airport are more costly at midday, with an average ticket price of $2,342. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $2,030 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Sydney for as low as $1,836 on momondo.

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

As of August 2025, prices for Sydney to Washington, D.C. Dulles Intl Airport flights are approximately 54% cheaper when compared to flights at the same time last year.

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

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

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

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

Best price found

$769

Fastest flight time

20h 46m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from Sydney in the past 72 hours is $769. The best return flight deal from Sydney to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $1,697.
The fastest flight from Sydney to Washington, D.C. Dulles Intl Airport takes 20h 46m
There are no direct flights from Sydney to Washington, D.C. Dulles Intl Airport. Popular non-direct route for this connection is Sydney Kingsford Smith Airport - Washington, D.C. Dulles Intl Airport.
Search flight deals

  • How far is Sydney Kingsford Smith to Washington, D.C. Dulles Intl by plane?

    Sydney Kingsford Smith and Washington, D.C. Dulles Intl are 15665.3 km apart from one another. A reasonable flight in good conditions will take 20h 46m.

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

    Prices for flights from Sydney Kingsford Smith Airport to Washington, D.C. Dulles Intl Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl 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 Sydney to Washington, D.C. Dulles Intl Airport?

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

Compare and see reviews for airlines that fly from Sydney to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free cancellation
Price
American AirlinesPriceFrom $634Free cancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $1,309Free cancellationRating
7.1
9,890 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $1,330Free cancellationRating
7.5
887 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $1,594Free cancellationRating
7.9
502 reviews
Search Air New Zealand flights
Virgin AustraliaPriceFrom $1,657Free cancellationRating
7.5
411 reviews
Search Virgin Australia flights
United AirlinesPriceFrom $1,765Free cancellationRating
7.4
8,916 reviews
Search United Airlines flights
ANAPriceFrom $1,907Free cancellationRating
8.4
924 reviews
Search ANA flights

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
McLean
Linthicum Heights
Winchester
Arlington
Landover

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Sydney to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Washington, D.C. from Sydney which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Sydney to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Washington, D.C. from Sydney. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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