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Cheap flights from Sydney to Washington, D.C. from $632

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 1/12. 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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Air New Zealand Logo
9:55 am - 9:25 pmSYD-IAD
27h 30m2 stops
Air New Zealand Logo
3:25 pm - 12:40 pmIAD-SYD
29h 15m2 stops
$1,038Air New Zealand
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Thu, Nov 27 - Fri, Dec 5
Multiple Airlines Logo
8:40 pm - 5:24 amSYD-IAD
48h 44m2 stops
Multiple Airlines Logo
6:45 pm - 3:30 pmIAD-SYD
52h 45m2 stops
$1,091Multiple Airlines
Find Deal
Sun, Feb 1 - Sat, Feb 7
Alaska Airlines Logo
9:40 pm - 4:36 pmSYD-IAD
34h 56m3 stops
Alaska Airlines Logo
5:26 pm - 7:45 pmIAD-SYD
34h 19m3 stops
$1,243Alaska Airlines
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Thu, Dec 11 - Tue, Feb 10
Alaska Airlines Logo
9:40 pm - 4:36 pmSYD-IAD
34h 56m2 stops
Alaska Airlines Logo
6:04 pm - 7:45 pmIAD-SYD
33h 41m2 stops
$1,248Alaska Airlines
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Thu, Dec 4 - Sat, Jan 10
Hawaiian Airlines Logo
9:40 pm - 6:06 amSYD-IAD
48h 26m2 stops
Hawaiian Airlines Logo
7:34 am - 7:45 pmIAD-SYD
44h 11m2 stops
$1,257Hawaiian Airlines
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Sat, Dec 6 - Tue, Dec 16
ANA Logo
11:50 am - 10:05 amSYD-IAD
36h 15m1 stop
ANA Logo
12:15 pm - 7:15 pmIAD-SYD
41h 00m1 stop
$1,305ANA
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Fri, May 1 - Thu, May 7
United Airlines Logo
10:20 am - 4:25 pmSYD-IAD
20h 05m1 stop
United Airlines Logo
1:05 pm - 6:55 amIAD-SYD
27h 50m2 stops
$1,445United Airlines
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Thu, Apr 9 - Wed, Apr 29
United Airlines Logo
11:20 am - 4:22 pmSYD-IAD
21h 02m1 stop
United Airlines Logo
10:20 pm - 9:15 amIAD-SYD
42h 55m1 stop
$1,446United Airlines
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Mon, Dec 29 - Sun, Jan 11
Hawaiian Airlines Logo
9:40 pm - 6:06 amSYD-IAD
48h 26m2 stops
Hawaiian Airlines Logo
7:34 am - 7:45 pmIAD-SYD
44h 11m2 stops
$1,472Hawaiian Airlines
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Sun, Dec 7 - Wed, Dec 17
ANA Logo
12:25 pm - 9:10 amSYD-IAD
36h 45m1 stop
ANA Logo
11:10 am - 8:15 pmIAD-SYD
41h 05m1 stop
$1,605ANA
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Fri, Feb 20 - Tue, Feb 24

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
Nov 27
SYD9:55 amSydney Kingsford Smith
27h 30m
2 stops
IAD9:25 pmWashington, D.C. Dulles Intl
Dec 5
IAD3:25 pmWashington, D.C. Dulles Intl
29h 15m
2 stops
SYD12:40 pmSydney Kingsford Smith
$1,038
Find similar
Air New Zealand
Dec 6
SYD1:55 pmSydney Kingsford Smith
31h 32m
2 stops
IAD5:27 amWashington, D.C. Dulles Intl
Dec 13
IAD9:00 amWashington, D.C. Dulles Intl
33h 30m
2 stops
SYD10:30 amSydney Kingsford Smith
$1,144
Find similar
Air New Zealand
May 1
SYD11:50 amSydney Kingsford Smith
24h 46m
2 stops
IAD10:36 pmWashington, D.C. Dulles Intl
May 7
IAD3:35 pmWashington, D.C. Dulles Intl
27h 10m
2 stops
SYD8:45 amSydney Kingsford Smith
$1,146
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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
Dec 11
SYD9:40 pmSydney Kingsford Smith
34h 56m
3 stops
IAD4:36 pmWashington, D.C. Dulles Intl
Feb 10
IAD5:26 pmWashington, D.C. Dulles Intl
34h 19m
3 stops
SYD7:45 pmSydney Kingsford Smith
$1,243
Find similar
Alaska Airlines
Dec 4
SYD9:40 pmSydney Kingsford Smith
34h 56m
2 stops
IAD4:36 pmWashington, D.C. Dulles Intl
Jan 10
IAD6:04 pmWashington, D.C. Dulles Intl
33h 41m
2 stops
SYD7:45 pmSydney Kingsford Smith
$1,248
Find similar
Alaska Airlines
Dec 6
SYD9:40 pmSydney Kingsford Smith
48h 26m
2 stops
IAD6:06 amWashington, D.C. Dulles Intl
Jan 6
IAD6:43 pmWashington, D.C. Dulles Intl
33h 02m
2 stops
SYD7:45 pmSydney Kingsford Smith
$1,262
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momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated November 10, 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

Thu 11/27

9:55 am-9:25 pm

2 stops27h 30m

Washington, D.C. Dulles Intl

Fri 12/5

3:25 pm-12:40 pm

2 stops29h 15m

$1,038

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 2/1

8:40 pm-5:24 am

2 stops48h 44m

Washington, D.C. Dulles Intl

Sat 2/7

6:45 pm-3:30 pm

2 stops52h 45m

$1,091

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 12/11

9:40 pm-4:36 pm

3 stops34h 56m

Washington, D.C. Dulles Intl

Tue 2/10

5:26 pm-7:45 pm

3 stops34h 19m

$1,243

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 12/4

9:40 pm-4:36 pm

2 stops34h 56m

Washington, D.C. Dulles Intl

Sat 1/10

6:04 pm-7:45 pm

2 stops33h 41m

$1,248

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 12/6

9:40 pm-6:06 am

2 stops48h 26m

Washington, D.C. Dulles Intl

Tue 12/16

7:34 am-7:45 pm

2 stops44h 11m

$1,257

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 5/1

11:50 am-10:05 am

1 stop36h 15m

Washington, D.C. Dulles Intl

Thu 5/7

12:15 pm-7:15 pm

1 stop41h 00m

$1,305

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 4/9

10:20 am-4:25 pm

1 stop20h 05m

Washington, D.C. Dulles Intl

Wed 4/29

1:05 pm-6:55 am

2 stops27h 50m

$1,445

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 12/29

11:20 am-4:22 pm

1 stop21h 02m

Washington, D.C. Dulles Intl

Sun 1/11

10:20 pm-9:15 am

1 stop42h 55m

$1,446

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 12/7

9:40 pm-6:06 am

2 stops48h 26m

Washington, D.C. Dulles Intl

Wed 12/17

7:34 am-7:45 pm

2 stops44h 11m

$1,472

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 2/20

12:25 pm-9:10 am

1 stop36h 45m

Washington, D.C. Dulles Intl

Tue 2/24

11:10 am-8:15 pm

1 stop41h 05m

$1,605

Flights are sorted by cheapest round-trip flights 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 cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, March is the cheapest month to fly from Sydney to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $980. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of March, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,125.

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

Our data shows that Tuesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $1,101. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Sydney to Washington, D.C. Dulles Intl Airport for around $2,084.

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

Flying to Washington, D.C. Dulles Intl Airport from Sydney in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,399 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,554 on average. Flights to Washington, D.C. Dulles Intl Airport from Sydney in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,297 when searching weeks out. 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 $1,066 on momondo.

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

You could potentially save up to 33% on your flight if you consider stops on a Sydney to Washington, D.C. Dulles Intl Airport flight.

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

As of November 2025, prices for Sydney to Washington, D.C. Dulles Intl Airport flights are approximately 8% 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 round-trip 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

Direct flights

None
There are no direct flights from Sydney to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Sydney to Washington, D.C. Dulles Intl Airport.
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  • How far is Sydney Kingsford Smith to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Sydney Kingsford Smith to Washington, D.C. Dulles Intl is 9734.0 mi. In terms of flight time, this usually takes a little over 20h 05m.

  • 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 are refreshed on a daily basis.

  • 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 travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek 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
United AirlinesPriceFrom $885Free CancellationRating
7.4
9,012 reviews
Search United Airlines flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Sydney to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Sydney to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Sydney and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Sydney to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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