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

Dallas (DFW) was the most common stop: 42% 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.

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

Turkish Airlines, Alaska Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. to Sydney Kingsford Smith

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 39m on average. Another popular route from Washington, D.C. to Sydney is flying from Washington, D.C. to Sydney, which will take roughly 22h 54m. 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.

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 57% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 7 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 7 as of April 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.

$496 Cheap Flights from Washington, D.C. to Sydney in 2026

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

7:40 am - 11:50 am

IAD

SYD

38h 10m

3 stops

1:15 pm - 11:41 am

SYD

IAD

36h 26m

3 stops

$1,064Multiple Airlines

Wed, May 6 - Wed, May 13

5:59 pm - 6:55 am

IAD

SYD

22h 56m

1 stop

12:00 pm - 11:26 pm

SYD

IAD

25h 26m

1 stop

$1,140Qantas Airways

Wed, May 6 - Wed, May 20

7:24 pm - 6:55 am

IAD

SYD

21h 31m

1 stop

12:00 pm - 10:47 pm

SYD

IAD

24h 47m

1 stop

$1,141Qantas Airways

Thu, Jun 4 - Mon, Jun 8

5:16 pm - 7:30 am

DCA

SYD

24h 14m

1 stop

12:00 pm - 9:30 pm

SYD

DCA

23h 30m

1 stop

$1,141Qantas Airways

Wed, Jun 3 - Tue, Jun 16

6:41 pm - 6:55 am

IAD

SYD

22h 14m

1 stop

12:00 pm - 10:47 pm

SYD

IAD

24h 47m

1 stop

$1,155Qantas Airways

Mon, Sep 14 - Wed, Sep 23

7:50 am - 7:30 am

BWI

SYD

33h 40m

2 stops

6:50 pm - 5:11 pm

SYD

BWI

37h 21m

2 stops

$1,453Alaska Airlines

Mon, Sep 21 - Tue, Oct 13

2:59 pm - 6:55 am

BWI

SYD

25h 56m

1 stop

12:00 pm - 7:20 pm

SYD

BWI

21h 20m

1 stop

$1,563American Airlines

Wed, Jun 3 - Tue, Jun 16

7:23 pm - 7:00 am

BWI

SYD

21h 37m

1 stop

9:30 am - 4:31 pm

SYD

BWI

21h 01m

1 stop

$1,566United Airlines

Sun, Aug 2 - Sun, Aug 16

4:11 pm - 7:05 am

BWI

SYD

24h 54m

2 stops

9:10 am - 6:00 pm

SYD

BWI

22h 50m

2 stops

$1,567American Airlines

Wed, Apr 22 - Wed, May 6

12:47 pm - 7:00 am

BWI

SYD

28h 13m

2 stops

10:20 am - 5:18 pm

SYD

BWI

20h 58m

1 stop

$1,570United Airlines

Mon, May 4 - Tue, May 19

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

Sep 21

BWI3:03 pmBaltimore/Washington

29h 37m

2 stops

SYD10:40 amSydney Kingsford Smith

Oct 13

SYD10:30 amSydney Kingsford Smith

21h 17m

1 stop

BWI4:47 pmBaltimore/Washington

$1,602

Air New Zealand

Apr 22

BWI6:15 pmBaltimore/Washington

22h 40m

1 stop

SYD6:55 amSydney Kingsford Smith

May 6

SYD10:20 amSydney Kingsford Smith

20h 58m

1 stop

BWI5:18 pmBaltimore/Washington

$1,615

Air New Zealand

May 6

BWI3:27 pmBaltimore/Washington

25h 28m

2 stops

SYD6:55 amSydney Kingsford Smith

May 13

SYD9:30 amSydney Kingsford Smith

27h 57m

2 stops

BWI11:27 pmBaltimore/Washington

$1,619

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

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

Qantas Airways

May 6

IAD5:59 pmWashington, D.C. Dulles Intl

22h 56m

1 stop

SYD6:55 amSydney Kingsford Smith

May 20

SYD12:00 pmSydney Kingsford Smith

25h 26m

1 stop

IAD11:26 pmWashington, D.C. Dulles Intl

$1,140

Qantas Airways

Jun 4

IAD7:24 pmWashington, D.C. Dulles Intl

21h 31m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 8

SYD12:00 pmSydney Kingsford Smith

24h 47m

1 stop

IAD10:47 pmWashington, D.C. Dulles Intl

$1,141

Qantas Airways

Sep 14

IAD6:41 pmWashington, D.C. Dulles Intl

22h 14m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 23

SYD12:00 pmSydney Kingsford Smith

24h 47m

1 stop

IAD10:47 pmWashington, D.C. Dulles Intl

$1,155

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 5/6

7:40 am-11:50 am

3 stops38h 10m

Sydney Kingsford Smith

Wed 5/13

1:15 pm-11:41 am

3 stops36h 26m

$1,064

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 5/6

5:59 pm-6:55 am

1 stop22h 56m

Sydney Kingsford Smith

Wed 5/20

12:00 pm-11:26 pm

1 stop25h 26m

$1,140

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Thu 6/4

7:24 pm-6:55 am

1 stop21h 31m

Sydney Kingsford Smith

Mon 6/8

12:00 pm-10:47 pm

1 stop24h 47m

$1,141

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 6/3

5:16 pm-7:30 am

1 stop24h 14m

Sydney Kingsford Smith

Tue 6/16

12:00 pm-9:30 pm

1 stop23h 30m

$1,141

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 9/14

6:41 pm-6:55 am

1 stop22h 14m

Sydney Kingsford Smith

Wed 9/23

12:00 pm-10:47 pm

1 stop24h 47m

$1,155

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 9/21

7:50 am-7:30 am

2 stops33h 40m

Sydney Kingsford Smith

Tue 10/13

6:50 pm-5:11 pm

2 stops37h 21m

$1,453

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 6/3

2:59 pm-6:55 am

1 stop25h 56m

Sydney Kingsford Smith

Tue 6/16

12:00 pm-7:20 pm

1 stop21h 20m

$1,563

Quickest round-trip

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 8/2

7:23 pm-7:00 am

1 stop21h 37m

Sydney Kingsford Smith

Sun 8/16

9:30 am-4:31 pm

1 stop21h 01m

$1,566

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 4/22

4:11 pm-7:05 am

2 stops24h 54m

Sydney Kingsford Smith

Wed 5/6

9:10 am-6:00 pm

2 stops22h 50m

$1,567

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 5/4

12:47 pm-7:00 am

2 stops28h 13m

Sydney Kingsford Smith

Tue 5/19

10:20 am-5:18 pm

1 stop20h 58m

$1,570

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, 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 $1,294. If you are unable to visit Sydney during the month of February, then departing from Washington, D.C. during the month April is also very affordable. Most momondo users find prices during this month for around $1,297.

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 $1,609 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 $758 on momondo.

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

You could potentially save up to 38% 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 April 2026, prices for Washington, D.C. to Sydney flights are approximately 473% more expensive 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 56m
Direct flights	None

The fastest flight from Washington, D.C. to Sydney takes 21h 56m

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. 21h 56m 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 7 as of April 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 United Airlines, making up 32% of the total bookings. Other popular airlines include Qantas Airways with 29%, American Airlines with 13%, and Delta with 12%.

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 8,390 reviews	Search Delta flights
United Airlines	PriceFrom $377	Free Cancellation	Rating 7.4 9,554 reviews	Search United Airlines flights
Fiji Airways	PriceFrom $719	Free Cancellation	Rating 8.1 239 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,017 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,559 reviews	Search American Airlines flights
Air Canada	PriceFrom $841	Free Cancellation	Rating 7.1 10,907 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,285	Free Cancellation	Rating 8.0 626 reviews	Search Air New Zealand flights

Parramatta

Bondi Beach

Katoomba

Wollongong

Penrith

Randwick

Coogee

Leura

Lithgow

Manly

Cronulla

Charlestown

Terrigal

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 5/9

Sat 5/16

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Nearby airports

Airlines

Cabin classes

Other Australia destinations

Other flights from Washington, D.C.

Complete your trip

Feeling lucky

Cheap flights from Washington, D.C. to Sydney from $496

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 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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

Our best Air New Zealand deals on Washington, D.C. to Sydney flight tickets

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

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

momondo Fare Finder

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

See travel insights to Sydney from

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?

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

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

Fastest flight time

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.

Find better results for your trip to Australia

Airports servicing New South Wales

Fly your favorite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sydney

List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Washington, D.C.

According to popular flight searches on momondo this year

Complete your trip to Sydney

Explore popular destinations other users love

According to popular flight searches on momondo this year