Which layover airport offers the lowest fares from Washington, D.C. to Sydney?

Flights via Nadi (NAN) offer the lowest average round-trip price of $650.

What is the cheapest airline that flies from Washington, D.C. to Sydney Kingsford Smith?

Delta, United Airlines, and Cathay Pacific are the most popular carriers operating from Washington, D.C. to Sydney Kingsford Smith

What airlines fly to Sydney?

United Airlines, Qantas Airways and Air New Zealand are the top three most popular airlines that fly to Sydney from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 6 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Washington, D.C. to Sydney?

San Francisco (SFO) has the shortest average layover time for this route: 1h 52m.

Which airport is the most popular layover for flights between Washington, D.C. and Sydney?

Dallas (DFW) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

How long does it take to fly to Sydney?

Flight times from Washington, D.C. to Sydney vary, but if you’re flying out of Baltimore and flying into Sydney (one of the most popular routes), then the duration is 23h 17m on average. Another popular route from Washington, D.C. to Sydney is flying from Washington, D.C. to Sydney, which will take roughly 23h 22m. Keep in mind that layovers or delays could extend your travel time.

Which layover airport has the shortest travel time from Washington, D.C. to Sydney?

Flights connecting via Nadi (NAN) have the shortest average one-way travel time: 18h 55m.

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?

The number of operators available for flights from Washington, D.C. to Sydney Kingsford Smith Airport is 6 as of October 2026.

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.

$537 Cheap Flights from Washington, D.C. to Sydney in 2026/27

Discover deals from 900+ travel sites with momondo.

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

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One-way

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8:05 am - 7:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

32h 50m1 stop San Francisco

11:50 am - 5:26 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 36m1 stop San Francisco

$1,223United Airlines

Sun, Oct 18 - Mon, Nov 2

8:05 am - 7:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

32h 50m1 stop San Francisco

11:50 am - 5:26 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 36m1 stop San Francisco

$1,228United Airlines

Sun, Oct 18 - Mon, Nov 2

3:57 pm - 9:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 03m2 stops Dallas/Fort Worth Los Angeles

2:05 pm - 10:53 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

24h 48m1 stop Dallas/Fort Worth

$1,238American Airlines

Mon, Nov 2 - Mon, Nov 9

2:11 pm - 8:30 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

26h 19m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 9:41 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

27h 01m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,241Delta

Mon, Nov 2 - Wed, Nov 25

2:11 pm - 8:30 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

26h 19m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 9:41 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

27h 01m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,241Delta

Tue, Nov 3 - Wed, Nov 25

9:30 am - 8:50 pmDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

43h 20m2 stops Los Angeles Hong Kong Intl

11:10 am - 8:59 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

25h 49m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,260Multiple Airlines

Fri, Nov 6 - Thu, Nov 26

9:30 am - 8:50 pmDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

43h 20m2 stops Los Angeles Hong Kong Intl

11:10 am - 4:00 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

20h 50m1 stop Los Angeles

$1,264Multiple Airlines

Fri, Nov 6 - Thu, Nov 26

1:00 pm - 8:35 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

27h 35m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 10:36 pmSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

26h 46m2 stops Auckland Intl Houston George Bush Intcntl

$1,286Air New Zealand

Tue, Mar 2 - Tue, Mar 9

7:50 pm - 10:35 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

46h 45m2 stops Houston George Bush Intcntl Auckland Intl

9:55 am - 8:35 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

26h 40m2 stops Auckland Intl Houston George Bush Intcntl

$1,296Air New Zealand

Sat, Feb 20 - Tue, Mar 2

4:59 pm - 9:00 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

24h 01m1 stop Los Angeles

1:00 pm - 8:57 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

22h 57m1 stop Dallas/Fort Worth

$1,818American Airlines

Mon, Mar 8 - Mon, Mar 29

Cheap last minute flights

Enter your travel dates to find the best prices.

2:59 pm - 7:50 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 51m2 stops Minneapolis St Paul Los Angeles

10:15 am - 11:28 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

28h 13m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,651Delta

Sat, Oct 10 - Sat, Oct 17

5:45 pm - 8:00 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

23h 15m1 stop Los Angeles

7:20 pm - 12:41 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

44h 21m2 stops Auckland Intl Los Angeles

$1,656Air New Zealand

Tue, Oct 6 - Thu, Oct 15

4:15 pm - 7:55 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

24h 40m1 stop San Francisco

7:20 pm - 10:07 pmSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

41h 47m2 stops Auckland Intl San Francisco

$1,657Air New Zealand

Tue, Oct 6 - Thu, Oct 15

3:03 pm - 7:50 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

25h 47m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:15 am - 11:26 pmSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

28h 11m2 stops Los Angeles Minneapolis St Paul

$1,730Delta

Tue, Oct 6 - Thu, Oct 15

11:32 am - 8:45 pmBWI Baltimore/Washington-SYD Sydney Kingsford Smith

42h 13m2 stops Chicago O'Hare Intl Hong Kong Intl

10:20 pm - 12:16 amSYD Sydney Kingsford Smith-BWI Baltimore/Washington

40h 56m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,923Cathay Pacific

Mon, Oct 5 - Sat, Oct 10

5:43 pm - 8:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

23h 17m1 stop Los Angeles

11:20 am - 5:34 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 14m1 stop San Francisco

$2,048United Airlines

Wed, Oct 7 - Wed, Oct 21

3:04 pm - 8:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 56m2 stops Houston George Bush Intcntl Los Angeles

11:20 am - 9:02 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

24h 42m2 stops San Francisco Chicago O'Hare Intl

$2,052United Airlines

Wed, Oct 7 - Wed, Oct 21

9:30 am - 7:30 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

31h 00m1 stop Los Angeles

6:50 pm - 8:00 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

40h 10m1 stop Los Angeles

$2,086Alaska Airlines

Wed, Oct 7 - Wed, Oct 21

6:00 am - 8:05 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

35h 05m1 stop Los Angeles

1:00 pm - 6:23 pmSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

20h 23m1 stop Dallas/Fort Worth

$2,111American Airlines

Wed, Oct 7 - Wed, Oct 21

5:35 pm - 8:05 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

23h 30m1 stop Los Angeles

10:10 am - 4:29 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

21h 19m1 stop Los Angeles

$2,421American Airlines

Mon, Oct 5 - Sat, Oct 10

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Delta flights from Washington, D.C. to Sydney

Our best Delta deals on Washington, D.C. to Sydney flight tickets

Delta

Nov 9

BWI12:18 pmBaltimore/Washington

28h 12m

2 stops

SYD8:30 amSydney Kingsford Smith

Nov 16

SYD10:40 amSydney Kingsford Smith

28h 43m

2 stops

BWI11:23 pmBaltimore/Washington

$1,242

Delta

Oct 18

BWI2:11 pmBaltimore/Washington

26h 39m

2 stops

SYD7:50 amSydney Kingsford Smith

Oct 31

SYD9:40 amSydney Kingsford Smith

25h 39m

2 stops

BWI8:19 pmBaltimore/Washington

$1,292

Delta

Nov 6

BWI2:11 pmBaltimore/Washington

26h 19m

2 stops

SYD8:30 amSydney Kingsford Smith

Nov 13

SYD10:40 amSydney Kingsford Smith

28h 43m

2 stops

BWI11:23 pmBaltimore/Washington

$1,343

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

Our best United Airlines deals on Washington, D.C. to Sydney flight tickets

United Airlines

Oct 18

BWI8:05 amBaltimore/Washington

32h 50m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

21h 36m

1 stop

BWI5:26 pmBaltimore/Washington

$1,223

United Airlines

Oct 18

BWI8:05 amBaltimore/Washington

32h 50m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

21h 36m

1 stop

BWI5:26 pmBaltimore/Washington

$1,228

United Airlines

Oct 25

BWI12:45 pmBaltimore/Washington

27h 15m

1 stop

SYD7:00 amSydney Kingsford Smith

Nov 9

SYD9:15 amSydney Kingsford Smith

23h 10m

1 stop

BWI4:25 pmBaltimore/Washington

$1,229

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Sun 10/18

8:05 am-7:55 am

1 stop32h 50m

Sydney Kingsford Smith

Mon 11/2

11:50 am-5:26 pm

1 stop21h 36m

$1,223

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Sun 10/18

8:05 am-7:55 am

1 stop32h 50m

Sydney Kingsford Smith

Mon 11/2

11:50 am-5:26 pm

1 stop21h 36m

$1,228

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 11/2

3:57 pm-9:00 am

2 stops25h 03m

Sydney Kingsford Smith

Mon 11/9

2:05 pm-10:53 pm

1 stop24h 48m

$1,238

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 11/2

2:11 pm-8:30 am

2 stops26h 19m

Sydney Kingsford Smith

Wed 11/25

10:40 am-9:41 pm

2 stops27h 01m

$1,241

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Tue 11/3

2:11 pm-8:30 am

2 stops26h 19m

Sydney Kingsford Smith

Wed 11/25

10:40 am-9:41 pm

2 stops27h 01m

$1,241

Washington, D.C.Sydney

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

DCASYD

Washington, D.C. Reagan-National

Fri 11/6

9:30 am-8:50 pm

2 stops43h 20m

Sydney Kingsford Smith

Thu 11/26

11:10 am-8:59 pm

2 stops25h 49m

$1,260

Washington, D.C.Sydney

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

DCASYD

Washington, D.C. Reagan-National

Fri 11/6

9:30 am-8:50 pm

2 stops43h 20m

Sydney Kingsford Smith

Thu 11/26

11:10 am-4:00 pm

1 stop20h 50m

$1,264

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Tue 3/2

1:00 pm-8:35 am

2 stops27h 35m

Sydney Kingsford Smith

Tue 3/9

11:50 am-10:36 pm

2 stops26h 46m

$1,286

Washington, D.C.Sydney

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

DCASYD

Washington, D.C. Reagan-National

Sat 2/20

7:50 pm-10:35 am

2 stops46h 45m

Sydney Kingsford Smith

Tue 3/2

9:55 am-8:35 pm

2 stops26h 40m

$1,296

Quickest round-trip

Washington, D.C.Sydney

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

DCASYD

Washington, D.C. Reagan-National

Mon 3/8

4:59 pm-9:00 am

1 stop24h 01m

Sydney Kingsford Smith

Mon 3/29

1:00 pm-8:57 pm

1 stop22h 57m

$1,818

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Washington, D.C. and Sydney?

Prices are currently low for flights on this route.

Typical prices usually range from $1,383 to $1,711.
The lowest price recently found on this route was $1,223.

What is the cheapest month to fly to Sydney?

In general, November 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 $1,310. If you are unable to visit Sydney during the month of November, then departing from Washington, D.C. during the month February is also very affordable. Most momondo users find prices during this month for around $1,347.

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 $1,613 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	$537
Fastest flight time	23h 15m
Direct flights	None

The best one-way flight to Sydney from Washington, D.C. in the past 72 hours is $537. The best round-trip flight deal from Washington, D.C. to Sydney found on momondo in the last 72 hours is $1,223.

The fastest flight from Washington, D.C. to Sydney takes 23h 15m

There are no direct flights from Washington, D.C. to Sydney. There are no popular flight routes from Washington, D.C. to Sydney.

Search flight deals

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 15m 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?
The number of operators available for flights from Washington, D.C. to Sydney Kingsford Smith Airport is 6 as of October 2026.
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?
Based on momondo bookings for flights between Washington, D.C. and Sydney, the leading airline is Qantas Airways, making up 35% of the total bookings. Other popular airlines include United Airlines with 31%, American Airlines with 10%, and Air New Zealand with 9%.

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 Airlines	PriceFrom $357	Free Cancellation	Rating 7.4 10,287 reviews	Search United Airlines flights
Delta	PriceFrom $377	Free Cancellation	Rating 7.8 8,627 reviews	Search Delta flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.0 12,130 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $878	Free Cancellation	Rating 7.5 1,102 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $1,105	Free Cancellation	Rating 7.1 11,718 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,275	Free Cancellation	Rating 8.0 669 reviews	Search Air New Zealand flights

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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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Cheap flights from Washington, D.C. to Sydney from $537

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. to Sydney departing on 11/18. 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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Delta flights from Washington, D.C. to Sydney

Our best Delta deals on Washington, D.C. to Sydney flight tickets

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

Our best United Airlines deals on Washington, D.C. to Sydney flight tickets

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

What is the typical price of a round-trip flight between Washington, D.C. and Sydney?

What is the cheapest month to fly to Sydney?

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

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

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

What is the cheapest airline that flies from Washington, D.C. to Sydney Kingsford Smith?

What airlines fly to Sydney?

Which airport is the most popular layover for flights between Washington, D.C. and Sydney?

Which layover airport offers the lowest fares from Washington, D.C. to Sydney?

Which layover airport has the shortest travel time from Washington, D.C. to Sydney?

Which layover airport has the shortest connection time from Washington, D.C. to Sydney?

How long does it take to fly to Sydney?

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

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

Best Price Found

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Direct flights

Frequently asked questions about flying 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

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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