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

Dallas (DFW) was the most common stop: 37% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 09m.

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 21h 33m on average. Another popular route from Washington, D.C. to Sydney is flying from Washington, D.C. to Sydney, which will take roughly 24h 03m. Keep in mind that layovers or delays could extend your travel time.

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

Flights via Chicago (ORD) offer the lowest average round-trip price of $346.

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

Chicago (ORD) has the shortest average layover time for this route: 0h 39m.

What airlines fly to Sydney?

United Airlines, Qantas Airways and American Airlines 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 49% 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.

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 February 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.

$489 Cheap Flights from Washington, D.C. to Sydney in 2026

Q: 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 $864 to $1,456. The lowest price recently found on this route was $1,100.

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:55 pm - 8:20 am

DCA

SYD

28h 25m

2 stops

9:20 am - 8:53 am

SYD

DCA

37h 33m

2 stops

$1,100Air Canada

Tue, Mar 31 - Mon, Apr 20

9:45 am - 7:20 am

IAD

SYD

31h 35m

2 stops

9:20 am - 8:29 pm

SYD

IAD

25h 09m

2 stops

$1,102Air Canada

Sun, May 3 - Sun, May 17

9:55 am - 8:20 am

IAD

SYD

31h 25m

2 stops

9:20 am - 8:29 pm

SYD

IAD

25h 09m

2 stops

$1,103Air Canada

Tue, Mar 31 - Sun, Apr 19

9:45 am - 9:35 am

IAD

SYD

31h 50m

2 stops

10:20 am - 11:44 am

SYD

IAD

40h 24m

2 stops

$1,130Air New Zealand

Wed, Feb 25 - Tue, Mar 17

8:15 am - 7:20 am

IAD

SYD

33h 05m

2 stops

9:20 am - 8:29 pm

SYD

IAD

25h 09m

1 stop

$1,135Air New Zealand

Sun, May 3 - Sun, May 17

9:59 am - 7:30 am

DCA

SYD

31h 31m

1 stop

1:15 pm - 8:06 pm

SYD

DCA

44h 51m

2 stops

$1,137Multiple Airlines

Tue, May 5 - Tue, May 12

9:59 am - 7:30 am

DCA

SYD

31h 31m

1 stop

1:15 pm - 8:06 pm

SYD

DCA

44h 51m

2 stops

$1,139Multiple Airlines

Thu, Apr 23 - Fri, May 22

12:39 pm - 7:20 am

IAD

SYD

28h 41m

1 stop

9:20 am - 9:25 pm

SYD

IAD

26h 05m

1 stop

$1,143ANA

Sun, May 3 - Sun, May 17

3:21 pm - 6:55 am

BWI

SYD

23h 34m

1 stop

6:30 am - 6:13 pm

SYD

BWI

26h 43m

2 stops

$1,263Qantas Airways

Wed, Feb 25 - Wed, Mar 18

3:21 pm - 9:40 pm

BWI

SYD

39h 19m

2 stops

1:05 pm - 6:13 pm

SYD

BWI

20h 08m

1 stop

$1,266Qantas Airways

Wed, Mar 11 - Thu, Mar 19

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

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

United Airlines

Jun 21

BWI3:00 pmBaltimore/Washington

26h 00m

2 stops

SYD7:00 amSydney Kingsford Smith

Jul 7

SYD9:30 amSydney Kingsford Smith

25h 33m

2 stops

BWI9:03 pmBaltimore/Washington

$1,382

United Airlines

Feb 10

DCA2:45 pmWashington, D.C. Reagan-National

24h 15m

1 stop

SYD7:00 amSydney Kingsford Smith

Feb 16

SYD11:50 amSydney Kingsford Smith

20h 05m

1 stop

DCA3:55 pmWashington, D.C. Reagan-National

$1,383

United Airlines

Apr 1

BWI4:18 pmBaltimore/Washington

24h 42m

2 stops

SYD8:00 amSydney Kingsford Smith

Apr 28

SYD9:30 amSydney Kingsford Smith

25h 53m

2 stops

BWI9:23 pmBaltimore/Washington

$1,386

Qantas Airways flights from Washington, D.C. to Sydney

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

Qantas Airways

Feb 17

IAD5:37 pmWashington, D.C. Dulles Intl

36h 18m

2 stops

SYD9:55 pmSydney Kingsford Smith

May 26

SYD12:00 pmSydney Kingsford Smith

20h 31m

1 stop

IAD6:31 pmWashington, D.C. Dulles Intl

$1,256

Qantas Airways

Feb 25

BWI3:21 pmBaltimore/Washington

23h 34m

1 stop

SYD6:55 amSydney Kingsford Smith

Mar 18

SYD6:30 amSydney Kingsford Smith

26h 43m

2 stops

BWI6:13 pmBaltimore/Washington

$1,263

Qantas Airways

Feb 11

BWI3:41 pmBaltimore/Washington

23h 14m

1 stop

SYD6:55 amSydney Kingsford Smith

Mar 4

SYD7:05 amSydney Kingsford Smith

31h 54m

2 stops

BWI10:59 pmBaltimore/Washington

$1,264

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 3/31

12:55 pm-8:20 am

2 stops28h 25m

Sydney Kingsford Smith

Mon 4/20

9:20 am-8:53 am

2 stops37h 33m

$1,100

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 5/3

9:45 am-7:20 am

2 stops31h 35m

Sydney Kingsford Smith

Sun 5/17

9:20 am-8:29 pm

2 stops25h 09m

$1,102

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 3/31

9:55 am-8:20 am

2 stops31h 25m

Sydney Kingsford Smith

Sun 4/19

9:20 am-8:29 pm

2 stops25h 09m

$1,103

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 2/25

9:45 am-9:35 am

2 stops31h 50m

Sydney Kingsford Smith

Tue 3/17

10:20 am-11:44 am

2 stops40h 24m

$1,130

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 5/3

8:15 am-7:20 am

2 stops33h 05m

Sydney Kingsford Smith

Sun 5/17

9:20 am-8:29 pm

1 stop25h 09m

$1,135

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 5/5

9:59 am-7:30 am

1 stop31h 31m

Sydney Kingsford Smith

Tue 5/12

1:15 pm-8:06 pm

2 stops44h 51m

$1,137

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Thu 4/23

9:59 am-7:30 am

1 stop31h 31m

Sydney Kingsford Smith

Fri 5/22

1:15 pm-8:06 pm

2 stops44h 51m

$1,139

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 5/3

12:39 pm-7:20 am

1 stop28h 41m

Sydney Kingsford Smith

Sun 5/17

9:20 am-9:25 pm

1 stop26h 05m

$1,143

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 2/25

3:21 pm-6:55 am

1 stop23h 34m

Sydney Kingsford Smith

Wed 3/18

6:30 am-6:13 pm

2 stops26h 43m

$1,263

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 3/11

3:21 pm-9:40 pm

2 stops39h 19m

Sydney Kingsford Smith

Thu 3/19

1:05 pm-6:13 pm

1 stop20h 08m

$1,266

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?

What is the cheapest month to fly to Sydney?

In general, April 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 $869. If you are unable to visit Sydney during the month of April, then departing from Washington, D.C. during the month August is also very affordable. Most momondo users find prices during this month for around $870.

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. when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,357 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 $655 on momondo.

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

You could potentially save up to 40% 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 February 2026, prices for Washington, D.C. to Sydney flights are approximately 63% 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

Fastest flight time	21h 33m
Direct flights	None

The fastest flight from Washington, D.C. to Sydney takes 21h 33m

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

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. 21h 33m 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 February 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 28% of the total bookings. Other popular airlines include United Airlines with 24%, American Airlines with 18%, and Delta with 14%.

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
Delta	PriceFrom $276	Free Cancellation	Rating 7.9 8,172 reviews	Search Delta flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 9,256 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 988 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $825	Free Cancellation	Rating 7.2 11,249 reviews	Search American Airlines flights
Air Canada	PriceFrom $854	Free Cancellation	Rating 7.1 10,697 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,289	Free Cancellation	Rating 8.0 582 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 $489

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 3/16. 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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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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Our best Qantas Airways 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 to Sydney?

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

You could potentially save up to 40% 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 February 2026, prices for Washington, D.C. to Sydney flights are approximately 63% cheaper when compared to flights at the same time last year.

What airlines fly to Sydney?

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

Dallas (DFW) was the most common stop: 37% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Chicago (ORD) offer the lowest average round-trip price of $346.

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

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 09m.

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

Chicago (ORD) has the shortest average layover time for this route: 0h 39m.

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

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

Fastest flight time

Direct flights

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

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

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?

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

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

Traveling to a place near Sydney?

Why use momondo?

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

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

How can momondo help me find flights 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?

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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Airports servicing New South Wales

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