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 22h 52m. 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.

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

Dallas (DFW) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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

Houston (IAH) has the shortest average layover time for this route: 1h 51m.

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 54% 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 offers the lowest fares from Washington, D.C. to Sydney?

Flights via Nadi (NAN) offer the lowest average round-trip price of $666.

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

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

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 June 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.

$506 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 low for flights on this route. Typical prices usually range from $1,119 to $1,616. The lowest price recently found on this route was $1,007.

Discover deals from 900+ travel sites with momondo.

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.

11:10 am - 11:50 am

IAD

SYD

34h 40m

3 stops

6:15 am - 4:07 pm

SYD

IAD

47h 52m

3 stops

$1,007Multiple Airlines

Fri, Aug 14 - Fri, Aug 21

7:00 am - 11:50 am

DCA

SYD

38h 50m

3 stops

6:15 am - 12:51 pm

SYD

DCA

44h 36m

3 stops

$1,015Multiple Airlines

Fri, Aug 14 - Fri, Aug 21

3:55 pm - 6:55 am

BWI

SYD

25h 00m

1 stop

9:10 am - 8:49 pm

SYD

BWI

25h 39m

2 stops

$1,174American Airlines

Mon, Aug 10 - Mon, Aug 17

3:55 pm - 6:55 am

BWI

SYD

25h 00m

1 stop

12:00 pm - 11:41 pm

SYD

BWI

25h 41m

1 stop

$1,175American Airlines

Mon, Aug 10 - Mon, Aug 17

6:59 pm - 6:55 am

BWI

SYD

21h 56m

1 stop

10:20 am - 5:39 pm

SYD

BWI

21h 19m

1 stop

$1,186United Airlines

Mon, Aug 10 - Mon, Sep 28

3:03 pm - 7:00 am

BWI

SYD

25h 57m

2 stops

10:20 am - 5:43 pm

SYD

BWI

21h 23m

1 stop

$1,187United Airlines

Mon, Aug 10 - Mon, Aug 17

12:03 pm - 6:50 am

BWI

SYD

28h 47m

2 stops

9:15 am - 11:18 pm

SYD

BWI

28h 03m

2 stops

$1,192Delta

Mon, Aug 10 - Mon, Aug 24

10:25 am - 6:50 am

BWI

SYD

30h 25m

2 stops

9:15 am - 7:50 pm

SYD

BWI

24h 35m

2 stops

$1,193Delta

Mon, Aug 10 - Wed, Aug 19

2:47 pm - 8:45 am

IAD

SYD

27h 58m

2 stops

9:55 am - 11:55 pm

SYD

IAD

28h 00m

2 stops

$1,335Air New Zealand

Mon, Aug 24 - Mon, Aug 31

9:00 am - 8:45 am

IAD

SYD

33h 45m

2 stops

9:55 am - 12:57 am

SYD

IAD

29h 02m

2 stops

$1,337Air New Zealand

Mon, Aug 31 - Mon, Sep 14

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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

Jul 26

BWI6:59 pmBaltimore/Washington

21h 56m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 23

SYD10:20 amSydney Kingsford Smith

21h 23m

1 stop

BWI5:43 pmBaltimore/Washington

$1,224

Air New Zealand

Aug 10

BWI7:23 pmBaltimore/Washington

21h 37m

1 stop

SYD7:00 amSydney Kingsford Smith

Aug 24

SYD9:30 amSydney Kingsford Smith

21h 05m

1 stop

BWI4:35 pmBaltimore/Washington

$1,225

Air New Zealand

Jul 26

BWI6:59 pmBaltimore/Washington

21h 56m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 23

SYD10:20 amSydney Kingsford Smith

21h 23m

1 stop

BWI5:43 pmBaltimore/Washington

$1,226

Delta flights from Washington, D.C. to Sydney

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

Delta

Jun 28

BWI2:10 pmBaltimore/Washington

26h 40m

2 stops

SYD6:50 amSydney Kingsford Smith

Jul 12

SYD9:15 amSydney Kingsford Smith

23h 04m

2 stops

BWI6:19 pmBaltimore/Washington

$1,191

Delta

Aug 10

BWI12:03 pmBaltimore/Washington

28h 47m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 24

SYD9:15 amSydney Kingsford Smith

28h 03m

2 stops

BWI11:18 pmBaltimore/Washington

$1,192

Delta

Aug 10

BWI10:25 amBaltimore/Washington

30h 25m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 19

SYD9:15 amSydney Kingsford Smith

24h 35m

2 stops

BWI7:50 pmBaltimore/Washington

$1,193

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Fri 8/14

11:10 am-11:50 am

3 stops34h 40m

Sydney Kingsford Smith

Fri 8/21

6:15 am-4:07 pm

3 stops47h 52m

$1,007

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Fri 8/14

7:00 am-11:50 am

3 stops38h 50m

Sydney Kingsford Smith

Fri 8/21

6:15 am-12:51 pm

3 stops44h 36m

$1,015

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/10

3:55 pm-6:55 am

1 stop25h 00m

Sydney Kingsford Smith

Mon 8/17

9:10 am-8:49 pm

2 stops25h 39m

$1,174

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/10

3:55 pm-6:55 am

1 stop25h 00m

Sydney Kingsford Smith

Mon 8/17

12:00 pm-11:41 pm

1 stop25h 41m

$1,175

Quickest round-trip

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/10

6:59 pm-6:55 am

1 stop21h 56m

Sydney Kingsford Smith

Mon 9/28

10:20 am-5:39 pm

1 stop21h 19m

$1,186

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/10

3:03 pm-7:00 am

2 stops25h 57m

Sydney Kingsford Smith

Mon 8/17

10:20 am-5:43 pm

1 stop21h 23m

$1,187

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/10

12:03 pm-6:50 am

2 stops28h 47m

Sydney Kingsford Smith

Mon 8/24

9:15 am-11:18 pm

2 stops28h 03m

$1,192

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/10

10:25 am-6:50 am

2 stops30h 25m

Sydney Kingsford Smith

Wed 8/19

9:15 am-7:50 pm

2 stops24h 35m

$1,193

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 8/24

2:47 pm-8:45 am

2 stops27h 58m

Sydney Kingsford Smith

Mon 8/31

9:55 am-11:55 pm

2 stops28h 00m

$1,335

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 8/31

9:00 am-8:45 am

2 stops33h 45m

Sydney Kingsford Smith

Mon 9/14

9:55 am-12:57 am

2 stops29h 02m

$1,337

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, 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 $78. If you are unable to visit Sydney during the month of August, then departing from Washington, D.C. during the month November is also very affordable. Most momondo users find prices during this month for around $177.

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 $1,650 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 $709 on momondo.

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

You could potentially save up to 19% 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 June 2026, prices for Washington, D.C. to Sydney flights are approximately 82% 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 6 as of June 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 35% of the total bookings. Other popular airlines include Qantas Airways with 29%, Delta with 12%, and American Airlines 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 $282	Free Cancellation	Rating 7.8 8,451 reviews	Search Delta flights
United Airlines	PriceFrom $377	Free Cancellation	Rating 7.4 9,896 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,050 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,779 reviews	Search American Airlines flights
Air Canada	PriceFrom $841	Free Cancellation	Rating 7.1 11,269 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,285	Free Cancellation	Rating 8.0 646 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 $583

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 7/25. 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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Air New Zealand flights from Washington, D.C. to Sydney

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

Delta flights from Washington, D.C. to Sydney

Our best Delta 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

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

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