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 Washington, D.C. and flying into Sydney (one of the most popular routes), then the duration is 22h 19m on average. Another popular route from Washington, D.C. to Sydney is flying from Baltimore to Sydney, which will take roughly 22h 22m. 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?

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

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.

What airlines fly to Sydney?

American Airlines, United Airlines and Qantas Airways are the top three most popular airlines that fly to Sydney from Washington, D.C. according to our data. American Airlines is the first choice among our users, with 42% 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.

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

Dallas (DFW) was the most common stop: 45% 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?

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

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 October 2025.

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.

$412 Cheap Flights from Washington, D.C. to Sydney in 2025/26

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 $934 to $1,600. The lowest price recently found on this route was $851.

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

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One-way

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Enter your travel dates to find the best prices.

6:59 pm - 9:05 amIAD-SYD

22h 06m1 stop

12:10 pm - 4:25 pmSYD-IAD

20h 15m1 stop

$851United Airlines

Find Deal

Wed, Nov 26 - Tue, Dec 9

2:51 pm - 9:05 amDCA-SYD

26h 14m2 stops

12:10 pm - 4:49 pmSYD-DCA

20h 39m1 stop

$851United Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

2:15 pm - 8:30 amIAD-SYD

26h 15m2 stops

9:40 am - 6:42 pmSYD-IAD

24h 02m2 stops

$855Delta

Find Deal

Tue, Feb 17 - Wed, Mar 18

1:40 pm - 6:50 amDCA-SYD

25h 10m2 stops

1:15 pm - 9:13 pmSYD-DCA

22h 58m2 stops

$855Delta

Find Deal

Sun, Feb 8 - Tue, Mar 10

4:50 pm - 9:00 amDCA-SYD

24h 10m1 stop

8:10 pm - 2:57 pmSYD-DCA

34h 47m2 stops

$979Qantas Airways

Find Deal

Wed, Dec 31 - Mon, Jan 12

8:35 am - 9:00 amDCA-SYD

32h 25m1 stop

7:05 am - 6:42 pmSYD-DCA

27h 37m2 stops

$980Qantas Airways

Find Deal

Mon, Nov 10 - Sat, Nov 15

6:05 am - 9:00 amIAD-SYD

34h 55m2 stops

11:20 am - 5:17 pmSYD-IAD

45h 57m2 stops

$1,008American Airlines

Find Deal

Fri, Dec 26 - Mon, Dec 29

1:07 pm - 9:00 amDCA-SYD

27h 53m2 stops

11:20 am - 11:59 pmSYD-DCA

28h 39m2 stops

$1,008American Airlines

Find Deal

Sat, Dec 27 - Tue, Dec 30

1:15 pm - 9:35 amIAD-SYD

28h 20m2 stops

11:20 am - 8:59 pmSYD-IAD

25h 39m2 stops

$1,080Air Canada

Find Deal

Sun, Feb 8 - Tue, Feb 17

9:45 am - 9:35 amIAD-SYD

31h 50m3 stops

11:20 am - 8:59 pmSYD-IAD

25h 39m2 stops

$1,087Air Canada

Find Deal

Sun, Feb 8 - Tue, Feb 17

Delta flights from Washington, D.C. to Sydney

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

Delta

Feb 17

IAD2:15 pmWashington, D.C. Dulles Intl

26h 15m

2 stops

SYD8:30 amSydney Kingsford Smith

Mar 18

SYD9:40 amSydney Kingsford Smith

24h 02m

2 stops

IAD6:42 pmWashington, D.C. Dulles Intl

$855

Find similar

Delta

Feb 14

DCA5:10 pmWashington, D.C. Reagan-National

23h 20m

1 stop

SYD8:30 amSydney Kingsford Smith

Mar 13

SYD9:40 amSydney Kingsford Smith

21h 16m

1 stop

DCA3:56 pmWashington, D.C. Reagan-National

$857

Find similar

Delta

Feb 12

IAD1:00 pmWashington, D.C. Dulles Intl

25h 50m

2 stops

SYD6:50 amSydney Kingsford Smith

Mar 18

SYD9:40 amSydney Kingsford Smith

24h 02m

2 stops

IAD6:42 pmWashington, D.C. Dulles Intl

$858

Find similar

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

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

Qantas Airways

Oct 30

DCA5:21 pmWashington, D.C. Reagan-National

24h 39m

1 stop

SYD9:00 amSydney Kingsford Smith

Nov 1

SYD7:40 pmSydney Kingsford Smith

34h 10m

2 stops

DCA2:50 pmWashington, D.C. Reagan-National

$941

Find similar

Qantas Airways

Oct 29

DCA5:21 pmWashington, D.C. Reagan-National

26h 34m

2 stops

SYD10:55 amSydney Kingsford Smith

Oct 31

SYD5:45 pmSydney Kingsford Smith

41h 15m

1 stop

DCA8:00 pmWashington, D.C. Reagan-National

$976

Find similar

Qantas Airways

Dec 31

DCA4:50 pmWashington, D.C. Reagan-National

24h 10m

1 stop

SYD9:00 amSydney Kingsford Smith

Jan 12

SYD8:10 pmSydney Kingsford Smith

34h 47m

2 stops

DCA2:57 pmWashington, D.C. Reagan-National

$979

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 11/26

6:59 pm-9:05 am

1 stop22h 06m

Sydney Kingsford Smith

Tue 12/9

12:10 pm-4:25 pm

1 stop20h 15m

$851

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 11/26

2:51 pm-9:05 am

2 stops26h 14m

Sydney Kingsford Smith

Wed 12/3

12:10 pm-4:49 pm

1 stop20h 39m

$851

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 2/17

2:15 pm-8:30 am

2 stops26h 15m

Sydney Kingsford Smith

Wed 3/18

9:40 am-6:42 pm

2 stops24h 02m

$855

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 2/8

1:40 pm-6:50 am

2 stops25h 10m

Sydney Kingsford Smith

Tue 3/10

1:15 pm-9:13 pm

2 stops22h 58m

$855

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 12/31

4:50 pm-9:00 am

1 stop24h 10m

Sydney Kingsford Smith

Mon 1/12

8:10 pm-2:57 pm

2 stops34h 47m

$979

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 11/10

8:35 am-9:00 am

1 stop32h 25m

Sydney Kingsford Smith

Sat 11/15

7:05 am-6:42 pm

2 stops27h 37m

$980

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Fri 12/26

6:05 am-9:00 am

2 stops34h 55m

Sydney Kingsford Smith

Mon 12/29

11:20 am-5:17 pm

2 stops45h 57m

$1,008

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sat 12/27

1:07 pm-9:00 am

2 stops27h 53m

Sydney Kingsford Smith

Tue 12/30

11:20 am-11:59 pm

2 stops28h 39m

$1,008

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 2/8

1:15 pm-9:35 am

2 stops28h 20m

Sydney Kingsford Smith

Tue 2/17

11:20 am-8:59 pm

2 stops25h 39m

$1,080

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 2/8

9:45 am-9:35 am

3 stops31h 50m

Sydney Kingsford Smith

Tue 2/17

11:20 am-8:59 pm

2 stops25h 39m

$1,087

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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 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 $862. If you are unable to visit Sydney during the month of August, then departing from Washington, D.C. during the month April is also very affordable. Most momondo users find prices during this month for around $900.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Washington, D.C. to Sydney is on a Tuesday when prices can be found for as low as $1,353. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,485.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is at noon. momondo users have found flights departing from Washington, D.C. to Sydney at noon for as low as $1,219. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,464. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,277 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 $534 on momondo.

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

You could potentially save up to 35% 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 2025, prices for Washington, D.C. to Sydney flights are approximately 54% 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

Direct flights	None

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. 22h 05m 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 October 2025.
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 American Airlines, making up 48% of the total bookings. Other popular airlines include Qantas Airways with 20%, United Airlines with 14%, and Delta 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
Delta	PriceFrom $276	Free Cancellation	Rating 7.9 7,994 reviews	Search Delta flights
United Airlines	PriceFrom $511	Free Cancellation	Rating 7.4 9,000 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 924 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $830	Free Cancellation	Rating 7.2 11,033 reviews	Search American Airlines flights
Air Canada	PriceFrom $854	Free Cancellation	Rating 7.1 10,371 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,289	Free Cancellation	Rating 8.0 519 reviews	Search Air New Zealand flights
ANA	PriceFrom $1,370	Free Cancellation	Rating 8.4 994 reviews	Search ANA 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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Airports servicing New South Wales

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Flights to Melbournefrom $855

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Flights to Cairnsfrom $1,028

Flights to Coolangattafrom $910

Flights to Hobartfrom $1,029

Flights to Canberrafrom $974

Flights to Darwinfrom $1,083

Flights to Maroochydorefrom $889

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Flights to Ballinafrom $1,092

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Cheap flights from Washington, D.C. to Sydney from $412

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 3/8. 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

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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

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

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?

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Washington, D.C. to Sydney is on a Tuesday when prices can be found for as low as $1,353. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,485.

What is the cheapest time of day to depart on your flight 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 35% 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 2025, prices for Washington, D.C. to Sydney flights are approximately 54% cheaper when compared to flights at the same time last year.

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

American Airlines, Qantas Airways, and United Airlines are the most popular carriers operating 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?

Dallas (DFW) was the most common stop: 45% 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

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.

Find better results for your trip to Australia

Airports servicing New South Wales