Cheap flights from Washington, D.C. to Sydney from $586

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Sydney

Cheap round-trip flights

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Air Canada Logo
12:55 pm - 9:35 amDCA  Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith
28h 40m2 stops Ottawa Vancouver Intl
Air Canada Logo
11:20 am - 12:11 pmSYD  Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National
40h 51m2 stops Vancouver Intl Ottawa
$1,310Air Canada
Fri, Feb 12 - Mon, Mar 1
Air Canada Logo
12:55 pm - 9:35 amDCA  Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith
28h 40m2 stops Ottawa Vancouver Intl
Air Canada Logo
11:20 am - 12:11 pmSYD  Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National
40h 51m2 stops Vancouver Intl Ottawa
$1,310Air Canada
Fri, Feb 12 - Sun, Feb 28
Qantas Airways Logo
4:59 pm - 9:00 amDCA  Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith
24h 01m1 stop Los Angeles
Qantas Airways Logo
2:05 pm - 7:58 pmSYD  Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National
21h 53m1 stop Dallas/Fort Worth
$1,317Qantas Airways
Sun, Feb 14 - Sat, Feb 27
Air New Zealand Logo
6:36 am - 8:35 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
34h 59m2 stops Los Angeles Auckland Intl
Air New Zealand Logo
11:50 am - 10:43 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
25h 53m2 stops Auckland Intl San Francisco
$1,318Air New Zealand
Sun, Mar 14 - Tue, Mar 23
Qantas Airways Logo
5:55 pm - 6:55 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
23h 00m1 stop Dallas/Fort Worth
Qantas Airways Logo
12:00 pm - 11:28 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
25h 28m1 stop Dallas/Fort Worth
$1,319Qantas Airways
Fri, Apr 16 - Tue, Apr 27
Air New Zealand Logo
2:36 pm - 10:35 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
27h 59m2 stops Houston George Bush Intcntl Auckland Intl
Air New Zealand Logo
7:30 am - 8:49 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
29h 19m2 stops Auckland Intl Houston George Bush Intcntl
$1,324Air New Zealand
Sun, Feb 14 - Tue, Mar 2
American Airlines Logo
7:16 am - 6:55 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
31h 39m1 stop Dallas/Fort Worth
American Airlines Logo
11:20 am - 10:48 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
27h 28m2 stops Los Angeles Dallas/Fort Worth
$1,326American Airlines
Tue, Feb 16 - Fri, Feb 26
American Airlines Logo
9:33 am - 9:00 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
31h 27m2 stops Charlotte Douglas Los Angeles
American Airlines Logo
11:10 am - 9:12 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
26h 02m2 stops Los Angeles Charlotte Douglas
$1,326American Airlines
Sun, Nov 22 - Sat, Dec 5
Multiple Airlines Logo
9:55 am - 7:20 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
31h 25m1 stop Toronto Pearson Intl
Multiple Airlines Logo
9:20 am - 7:59 pmSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
24h 39m1 stop Toronto Pearson Intl
$1,369Multiple Airlines
Mon, Apr 26 - Sat, May 8
Multiple Airlines Logo
12:06 pm - 9:00 amIAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
28h 54m2 stops Atlanta Hartsfield-Jackson Los Angeles
Multiple Airlines Logo
7:05 am - 6:07 amSYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
39h 02m3 stops Auckland Intl Los Angeles Las Vegas Harry Reid Intl
$1,401Multiple Airlines
Tue, Dec 8 - Sun, Dec 20

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

Our best Air New Zealand deals on Washington, D.C. to Sydney flight tickets
Air New Zealand
Dec 13
IAD2:24 pmWashington, D.C. Dulles Intl
28h 11m
2 stops
SYD10:35 amSydney Kingsford Smith
Feb 6
SYD7:25 pmSydney Kingsford Smith
42h 34m
2 stops
IAD9:59 pmWashington, D.C. Dulles Intl
$1,324
Air New Zealand
Jan 17
IAD5:38 pmWashington, D.C. Dulles Intl
51h 12m
2 stops
SYD12:50 pmSydney Kingsford Smith
Jan 31
SYD11:50 amSydney Kingsford Smith
28h 16m
2 stops
IAD12:06 amWashington, D.C. Dulles Intl
$1,334
Air New Zealand
Dec 12
IAD5:52 pmWashington, D.C. Dulles Intl
48h 43m
2 stops
SYD10:35 amSydney Kingsford Smith
Feb 6
SYD7:25 pmSydney Kingsford Smith
42h 34m
2 stops
IAD9:59 pmWashington, D.C. Dulles Intl
$1,335

Alaska Airlines flights from Washington, D.C. to Sydney

Our best Alaska Airlines deals on Washington, D.C. to Sydney flight tickets
Alaska Airlines
Nov 11
IAD7:46 amWashington, D.C. Dulles Intl
30h 39m
3 stops
SYD6:25 amSydney Kingsford Smith
Nov 14
SYD11:15 amSydney Kingsford Smith
34h 29m
3 stops
IAD5:44 amWashington, D.C. Dulles Intl
$1,522
Alaska Airlines
Nov 11
IAD7:46 amWashington, D.C. Dulles Intl
30h 39m
2 stops
SYD6:25 amSydney Kingsford Smith
Nov 14
SYD11:15 amSydney Kingsford Smith
34h 29m
3 stops
IAD5:44 amWashington, D.C. Dulles Intl
$1,598
Alaska Airlines
Nov 8
DCA9:30 amWashington, D.C. Reagan-National
28h 55m
1 stop
SYD6:25 amSydney Kingsford Smith
Nov 17
SYD11:15 amSydney Kingsford Smith
24h 45m
1 stop
DCA8:00 pmWashington, D.C. Reagan-National
$1,689

momondo Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. to Sydney that are best for you.

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Route

Depart

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Price

Cheapest round-trip

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Fri 2/12

12:55 pm-9:35 am

2 stops28h 40m

Sydney Kingsford Smith

Mon 3/1

11:20 am-12:11 pm

2 stops40h 51m

$1,310

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Fri 2/12

12:55 pm-9:35 am

2 stops28h 40m

Sydney Kingsford Smith

Sun 2/28

11:20 am-12:11 pm

2 stops40h 51m

$1,310
Quickest round-trip

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Sun 2/14

4:59 pm-9:00 am

1 stop24h 01m

Sydney Kingsford Smith

Sat 2/27

2:05 pm-7:58 pm

1 stop21h 53m

$1,317

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sun 3/14

6:36 am-8:35 am

2 stops34h 59m

Sydney Kingsford Smith

Tue 3/23

11:50 am-10:43 pm

2 stops25h 53m

$1,318

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Fri 4/16

5:55 pm-6:55 am

1 stop23h 00m

Sydney Kingsford Smith

Tue 4/27

12:00 pm-11:28 pm

1 stop25h 28m

$1,319

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sun 2/14

2:36 pm-10:35 am

2 stops27h 59m

Sydney Kingsford Smith

Tue 3/2

7:30 am-8:49 pm

2 stops29h 19m

$1,324

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 2/16

7:16 am-6:55 am

1 stop31h 39m

Sydney Kingsford Smith

Fri 2/26

11:20 am-10:48 pm

2 stops27h 28m

$1,326

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sun 11/22

9:33 am-9:00 am

2 stops31h 27m

Sydney Kingsford Smith

Sat 12/5

11:10 am-9:12 pm

2 stops26h 02m

$1,326

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Mon 4/26

9:55 am-7:20 am

1 stop31h 25m

Sydney Kingsford Smith

Sat 5/8

9:20 am-7:59 pm

1 stop24h 39m

$1,369

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 12/8

12:06 pm-9:00 am

2 stops28h 54m

Sydney Kingsford Smith

Sun 12/20

7:05 am-6:07 am

3 stops39h 02m

$1,401

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Sydney from

How to get the cheapest flight ticket from Washington, D.C. 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 typical price of a round-trip flight between Washington, D.C. and Sydney?

Prices are currently typical for flights on this route.

Typical prices usually range from $1,297 to $1,528.
The lowest price recently found on this route was $1,314.

What is the cheapest month to fly to Sydney?

In general, February is the cheapest month to fly from Washington, D.C. to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,314. If you are unable to visit Sydney during the month of February, then departing from Washington, D.C. during the month November is also very affordable. Most momondo users find prices during this month for around $1,337.

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

You are more likely to see cheaper flights to Sydney from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,599 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Washington, D.C. for as low as $1,285 on momondo.

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

You could potentially save up to 15% on your flight if you consider stops on a Washington, D.C. to Sydney flight.

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

As of October 2026, prices for Washington, D.C. to Sydney flights are approximately 45% cheaper when compared to flights at the same time last year.

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

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

Cheap Washington, D.C. to Sydney (WAS to SYD) flight deals and tips

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

Best Price Found

$586

Fastest flight time

23h 50m

Direct flights

None
The best one-way flight to Sydney from Washington, D.C. in the past 72 hours is $586. The best round-trip flight deal from Washington, D.C. to Sydney found on momondo in the last 72 hours is $1,310.
The fastest flight from Washington, D.C. to Sydney takes 23h 50m
There are no direct flights from Washington, D.C. to Sydney. There are no popular flight routes from Washington, D.C. to Sydney.

Frequently asked questions about flying from Washington, D.C. to Sydney

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

    A flight from Washington, D.C. to Sydney Kingsford Smith will travel around 9755.6 mi. 23h 50m is a normal flight duration for this route.

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

    Prices for flights from Washington, D.C. to Sydney Kingsford Smith Airport are updated daily.

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

  • How old do you have to be to fly from Washington, D.C. 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 layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Sydney Kingsford Smith Airport.

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

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Washington, D.C. to Sydney

Compare and see reviews for airlines that fly from Washington, D.C. to Sydney with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $357Free CancellationRating
7.3
10,451 reviews
Search United Airlines flights
DeltaPriceFrom $377Free CancellationRating
7.8
8,690 reviews
Search Delta flights
American AirlinesPriceFrom $836Free CancellationRating
7.0
12,210 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $878Free CancellationRating
7.5
1,121 reviews
Search Qantas Airways flights
Air CanadaPriceFrom $1,080Free CancellationRating
7.1
11,832 reviews
Search Air Canada flights
Air New ZealandPriceFrom $1,275Free CancellationRating
8.0
679 reviews
Search Air New Zealand flights

Traveling to a place near Sydney?

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

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Washington, D.C. to Sydney flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Sydney from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Washington, D.C. to Sydney 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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1 adult
Sun 11/29
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