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.

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 56m on average. Another popular route from Washington, D.C. to Sydney is flying from Washington, D.C. to Sydney, which will take roughly 27h 07m. Keep in mind that layovers or delays could extend your travel time.

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

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

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 56% 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 travel time from Washington, D.C. to Sydney?

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

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.

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 March 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.

$473 Cheap Flights from Washington, D.C. to Sydney in 2026

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

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One-way

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Cheap round-trip flights

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5:37 pm - 10:40 am

IAD

SYD

27h 03m

2 stops

11:55 am - 10:44 pm

SYD

IAD

24h 49m

2 stops

$1,213Air New Zealand

Wed, Apr 22 - Wed, Apr 29

2:33 pm - 8:45 am

DCA

SYD

28h 12m

2 stops

11:55 am - 10:15 pm

SYD

DCA

24h 20m

2 stops

$1,213Air New Zealand

Wed, Apr 22 - Wed, Apr 29

5:37 pm - 8:45 am

IAD

SYD

25h 08m

2 stops

11:55 am - 10:49 pm

SYD

IAD

24h 54m

2 stops

$1,220Air New Zealand

Mon, Apr 27 - Mon, May 11

5:37 pm - 8:45 am

IAD

SYD

25h 08m

2 stops

11:55 am - 10:44 pm

SYD

IAD

24h 49m

2 stops

$1,235Air New Zealand

Wed, Apr 22 - Wed, Apr 29

2:33 pm - 8:45 am

DCA

SYD

28h 12m

2 stops

11:55 am - 10:15 pm

SYD

DCA

24h 20m

2 stops

$1,235Air New Zealand

Wed, Apr 22 - Wed, Apr 29

12:55 pm - 8:45 am

IAD

SYD

29h 50m

2 stops

11:55 am - 10:49 pm

SYD

IAD

24h 54m

2 stops

$1,237Air New Zealand

Mon, Apr 27 - Mon, May 11

5:50 pm - 10:40 am

BWI

SYD

26h 50m

2 stops

9:55 am - 5:14 am

SYD

BWI

33h 19m

2 stops

$1,237Air New Zealand

Mon, Apr 27 - Mon, May 11

4:34 pm - 8:45 am

DCA

SYD

26h 11m

2 stops

9:55 am - 11:58 pm

SYD

DCA

28h 03m

2 stops

$1,237Air New Zealand

Mon, Apr 27 - Mon, May 11

5:55 pm - 10:40 am

IAD

SYD

26h 45m

2 stops

11:55 am - 12:55 am

SYD

IAD

27h 00m

2 stops

$1,238Air New Zealand

Mon, May 4 - Mon, May 25

5:50 pm - 8:45 am

BWI

SYD

24h 55m

2 stops

9:55 am - 10:44 pm

SYD

BWI

26h 49m

2 stops

$1,238Air New Zealand

Wed, Apr 22 - Wed, Apr 29

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

Apr 22

IAD5:37 pmWashington, D.C. Dulles Intl

27h 03m

2 stops

SYD10:40 amSydney Kingsford Smith

Apr 29

SYD11:55 amSydney Kingsford Smith

24h 49m

2 stops

IAD10:44 pmWashington, D.C. Dulles Intl

$1,213

Air New Zealand

Apr 27

IAD5:37 pmWashington, D.C. Dulles Intl

25h 08m

2 stops

SYD8:45 amSydney Kingsford Smith

May 11

SYD11:55 amSydney Kingsford Smith

24h 54m

2 stops

IAD10:49 pmWashington, D.C. Dulles Intl

$1,220

Air New Zealand

Apr 22

IAD5:37 pmWashington, D.C. Dulles Intl

25h 08m

2 stops

SYD8:45 amSydney Kingsford Smith

Apr 29

SYD11:55 amSydney Kingsford Smith

24h 49m

2 stops

IAD10:44 pmWashington, D.C. Dulles Intl

$1,235

Air Canada flights from Washington, D.C. to Sydney

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

Air Canada

Apr 7

DCA11:00 amWashington, D.C. Reagan-National

30h 20m

2 stops

SYD7:20 amSydney Kingsford Smith

May 12

SYD9:20 amSydney Kingsford Smith

26h 35m

2 stops

DCA9:55 pmWashington, D.C. Reagan-National

$1,303

Air Canada

Jun 8

IAD8:21 amWashington, D.C. Dulles Intl

32h 59m

1 stop

SYD7:20 amSydney Kingsford Smith

Jun 17

SYD9:20 amSydney Kingsford Smith

35h 02m

1 stop

IAD6:22 amWashington, D.C. Dulles Intl

$1,304

Air Canada

Apr 21

IAD9:55 amWashington, D.C. Dulles Intl

31h 25m

2 stops

SYD7:20 amSydney Kingsford Smith

Apr 28

SYD9:20 amSydney Kingsford Smith

25h 09m

2 stops

IAD8:29 pmWashington, D.C. Dulles Intl

$1,306

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 4/22

5:37 pm-10:40 am

2 stops27h 03m

Sydney Kingsford Smith

Wed 4/29

11:55 am-10:44 pm

2 stops24h 49m

$1,213

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 4/22

2:33 pm-8:45 am

2 stops28h 12m

Sydney Kingsford Smith

Wed 4/29

11:55 am-10:15 pm

2 stops24h 20m

$1,213

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 4/27

5:37 pm-8:45 am

2 stops25h 08m

Sydney Kingsford Smith

Mon 5/11

11:55 am-10:49 pm

2 stops24h 54m

$1,220

Quickest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 4/22

5:37 pm-8:45 am

2 stops25h 08m

Sydney Kingsford Smith

Wed 4/29

11:55 am-10:44 pm

2 stops24h 49m

$1,235

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 4/22

2:33 pm-8:45 am

2 stops28h 12m

Sydney Kingsford Smith

Wed 4/29

11:55 am-10:15 pm

2 stops24h 20m

$1,235

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 4/27

12:55 pm-8:45 am

2 stops29h 50m

Sydney Kingsford Smith

Mon 5/11

11:55 am-10:49 pm

2 stops24h 54m

$1,237

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 4/27

5:50 pm-10:40 am

2 stops26h 50m

Sydney Kingsford Smith

Mon 5/11

9:55 am-5:14 am

2 stops33h 19m

$1,237

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 4/27

4:34 pm-8:45 am

2 stops26h 11m

Sydney Kingsford Smith

Mon 5/11

9:55 am-11:58 pm

2 stops28h 03m

$1,237

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 5/4

5:55 pm-10:40 am

2 stops26h 45m

Sydney Kingsford Smith

Mon 5/25

11:55 am-12:55 am

2 stops27h 00m

$1,238

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 4/22

5:50 pm-8:45 am

2 stops24h 55m

Sydney Kingsford Smith

Wed 4/29

9:55 am-10:44 pm

2 stops26h 49m

$1,238

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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 cheapest month to fly to Sydney?

In general, August 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 $1,104. If you are unable to visit Sydney during the month of August, then departing from Washington, D.C. during the month February is also very affordable. Most momondo users find prices during this month for around $1,294.

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 $1,618 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 23% 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 March 2026, prices for Washington, D.C. to Sydney flights are approximately 3% 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

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 6 as of March 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 28% of the total bookings. Other popular airlines include Qantas Airways with 28%, Delta with 13%, and American Airlines with 13%.

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 8,277 reviews	Search Delta flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 9,413 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,002 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $854	Free Cancellation	Rating 7.1 10,800 reviews	Search Air Canada flights
American Airlines	PriceFrom $855	Free Cancellation	Rating 7.1 11,415 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,285	Free Cancellation	Rating 8.0 610 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 $473

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 4/15. 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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How to get the cheapest flight ticket from Washington, D.C. to 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

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