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 45m on average. Another popular route from Washington, D.C. to Sydney is flying from Washington, D.C. to Sydney, which will take roughly 26h 07m. Keep in mind that layovers or delays could extend your travel time.

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.

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 55% 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 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 is the cheapest airline that flies from Washington, D.C. to Sydney Kingsford Smith?

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

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.

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.

$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 $1,639 to $1,046. The lowest price recently found on this route was $1,299.

1 adult

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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.

9:12 am - 7:05 am

IAD

SYD

31h 53m

2 stops

5:50 pm - 8:25 am

SYD

IAD

28h 35m

2 stops

$1,299Multiple Airlines

Wed, Jun 3 - Wed, Jun 10

7:00 am - 7:30 am

IAD

SYD

34h 30m

2 stops

5:50 pm - 5:40 am

SYD

IAD

25h 50m

2 stops

$1,344Alaska Airlines

Wed, Sep 9 - Wed, Sep 16

7:00 am - 7:30 am

IAD

SYD

34h 30m

2 stops

6:50 pm - 7:28 am

SYD

IAD

27h 38m

2 stops

$1,363Alaska Airlines

Tue, Sep 8 - Tue, Oct 20

7:24 pm - 6:55 am

IAD

SYD

21h 31m

1 stop

12:00 pm - 10:52 pm

SYD

IAD

24h 52m

1 stop

$1,364Qantas Airways

Mon, Jun 29 - Sun, Aug 23

6:55 pm - 6:55 am

DCA

SYD

22h 00m

1 stop

12:00 pm - 7:14 pm

SYD

DCA

21h 14m

1 stop

$1,364Qantas Airways

Mon, Jun 29 - Sun, Aug 23

1:20 pm - 7:10 pm

IAD

SYD

39h 50m

2 stops

9:05 pm - 11:35 am

SYD

IAD

52h 30m

2 stops

$1,394Turkish Airlines

Wed, Aug 26 - Tue, Sep 8

4:11 pm - 7:05 am

BWI

SYD

24h 54m

2 stops

12:00 pm - 6:27 pm

SYD

BWI

20h 27m

1 stop

$1,402American Airlines

Sun, Apr 26 - Mon, May 11

4:11 pm - 7:05 am

BWI

SYD

24h 54m

2 stops

9:10 am - 6:00 pm

SYD

BWI

22h 50m

2 stops

$1,403American Airlines

Sun, Apr 26 - Mon, May 11

6:28 pm - 7:00 am

BWI

SYD

22h 32m

1 stop

10:20 am - 5:18 pm

SYD

BWI

20h 58m

1 stop

$1,406United Airlines

Sun, Apr 26 - Mon, May 11

4:12 pm - 7:00 am

BWI

SYD

24h 48m

2 stops

9:30 am - 5:43 pm

SYD

BWI

22h 13m

1 stop

$1,412United Airlines

Wed, May 20 - Wed, May 27

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

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

Alaska Airlines

Sep 9

IAD7:00 amWashington, D.C. Dulles Intl

34h 30m

2 stops

SYD7:30 amSydney Kingsford Smith

Sep 16

SYD5:50 pmSydney Kingsford Smith

25h 50m

2 stops

IAD5:40 amWashington, D.C. Dulles Intl

$1,344

Alaska Airlines

Sep 8

IAD7:00 amWashington, D.C. Dulles Intl

34h 30m

2 stops

SYD7:30 amSydney Kingsford Smith

Oct 20

SYD6:50 pmSydney Kingsford Smith

27h 38m

2 stops

IAD7:28 amWashington, D.C. Dulles Intl

$1,363

Alaska Airlines

Sep 22

IAD9:00 amWashington, D.C. Dulles Intl

32h 30m

2 stops

SYD7:30 amSydney Kingsford Smith

Oct 4

SYD6:50 pmSydney Kingsford Smith

27h 38m

2 stops

IAD7:28 amWashington, D.C. Dulles Intl

$1,405

Delta flights from Washington, D.C. to Sydney

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

Delta

Jun 3

BWI11:50 amBaltimore/Washington

29h 00m

2 stops

SYD6:50 amSydney Kingsford Smith

Jun 16

SYD9:15 amSydney Kingsford Smith

27h 58m

2 stops

BWI11:13 pmBaltimore/Washington

$1,421

Delta

Jun 1

BWI10:28 amBaltimore/Washington

30h 22m

2 stops

SYD6:50 amSydney Kingsford Smith

Jun 8

SYD9:15 amSydney Kingsford Smith

28h 03m

2 stops

BWI11:18 pmBaltimore/Washington

$1,422

Delta

May 19

BWI1:59 pmBaltimore/Washington

26h 51m

2 stops

SYD6:50 amSydney Kingsford Smith

May 25

SYD9:15 amSydney Kingsford Smith

34h 30m

2 stops

BWI5:45 amBaltimore/Washington

$1,423

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 6/3

9:12 am-7:05 am

2 stops31h 53m

Sydney Kingsford Smith

Wed 6/10

5:50 pm-8:25 am

2 stops28h 35m

$1,299

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 9/9

7:00 am-7:30 am

2 stops34h 30m

Sydney Kingsford Smith

Wed 9/16

5:50 pm-5:40 am

2 stops25h 50m

$1,344

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 9/8

7:00 am-7:30 am

2 stops34h 30m

Sydney Kingsford Smith

Tue 10/20

6:50 pm-7:28 am

2 stops27h 38m

$1,363

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 6/29

7:24 pm-6:55 am

1 stop21h 31m

Sydney Kingsford Smith

Sun 8/23

12:00 pm-10:52 pm

1 stop24h 52m

$1,364

Quickest round-trip

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 6/29

6:55 pm-6:55 am

1 stop22h 00m

Sydney Kingsford Smith

Sun 8/23

12:00 pm-7:14 pm

1 stop21h 14m

$1,364

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 8/26

1:20 pm-7:10 pm

2 stops39h 50m

Sydney Kingsford Smith

Tue 9/8

9:05 pm-11:35 am

2 stops52h 30m

$1,394

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 4/26

4:11 pm-7:05 am

2 stops24h 54m

Sydney Kingsford Smith

Mon 5/11

12:00 pm-6:27 pm

1 stop20h 27m

$1,402

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 4/26

4:11 pm-7:05 am

2 stops24h 54m

Sydney Kingsford Smith

Mon 5/11

9:10 am-6:00 pm

2 stops22h 50m

$1,403

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 4/26

6:28 pm-7:00 am

1 stop22h 32m

Sydney Kingsford Smith

Mon 5/11

10:20 am-5:18 pm

1 stop20h 58m

$1,406

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 5/20

4:12 pm-7:00 am

2 stops24h 48m

Sydney Kingsford Smith

Wed 5/27

9:30 am-5:43 pm

1 stop22h 13m

$1,412

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 $1,633 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 26m
Direct flights	None

The fastest flight from Washington, D.C. to Sydney takes 21h 26m

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 26m 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 30%, 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 8,433 reviews	Search Delta flights
United Airlines	PriceFrom $377	Free Cancellation	Rating 7.4 9,611 reviews	Search United Airlines flights
Fiji Airways	PriceFrom $719	Free Cancellation	Rating 8.1 240 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,023 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,646 reviews	Search American Airlines flights
Air Canada	PriceFrom $841	Free Cancellation	Rating 7.1 10,947 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,285	Free Cancellation	Rating 8.0 632 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 $507

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 5/7. 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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Alaska Airlines flights from Washington, D.C. to Sydney

Our best Alaska Airlines 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 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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