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

San Francisco (SFO) was the most common stop: 67% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport has the shortest travel time from Washington, D.C. to Sydney?

Flights connecting via Los Angeles (LAX) have the shortest average one-way travel time: 22h 30m.

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

Los Angeles (LAX) has the shortest average stopover time for this route: 1h 35m.

Which stopover airport offers the lowest fares from Washington, D.C. to Sydney?

Flights via Los Angeles (LAX) offer the lowest average return price of $2,263.

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

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

How long does it take to fly to Sydney?

If you’re flying from a popular airport in Washington, D.C., such as Baltimore or Washington, D.C., and flying into Sydney, then you can expect flight times to average 21h 38m and 22h 55m, respectively.

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 refresh daily.

How many operators does momondo search for flights from Washington, D.C. to Sydney Kingsford Smith Airport?

As of March 2026, there is 1 operator available to choose from 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?

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 stopovers. 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 travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$695 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 $2,359 to $1,361. The lowest price recently found on this route was $1,648.

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

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:24 - 06:55

IAD

SYD

21h 31m

1 stop

12:00 - 22:47

SYD

IAD

24h 47m

1 stop

$1,648Qantas Airways

Wed, 27 May - Mon, 8 Jun

17:59 - 06:55

IAD

SYD

22h 56m

1 stop

12:00 - 22:47

SYD

IAD

24h 47m

1 stop

$1,650Qantas Airways

Thu, 14 May - Mon, 25 May

18:41 - 06:55

IAD

SYD

22h 14m

1 stop

12:00 - 22:47

SYD

IAD

24h 47m

1 stop

$1,670Qantas Airways

Sat, 15 Aug - Mon, 31 Aug

11:12 - 07:05

IAD

SYD

29h 53m

2 stops

09:10 - 18:42

SYD

IAD

47h 32m

2 stops

$1,706Multiple Airlines

Wed, 6 May - Wed, 13 May

13:52 - 06:55

DCA

SYD

27h 03m

1 stop

09:10 - 20:00

SYD

DCA

24h 50m

1 stop

$1,745Multiple Airlines

Thu, 20 Aug - Mon, 31 Aug

22:07 - 07:20

IAD

SYD

43h 13m

2 stops

09:20 - 11:50

SYD

IAD

40h 30m

2 stops

$1,755Air Canada

Sat, 25 Apr - Mon, 4 May

08:15 - 07:20

IAD

SYD

33h 05m

2 stops

09:20 - 21:18

SYD

IAD

25h 58m

2 stops

$1,757Air Canada

Wed, 22 Apr - Wed, 6 May

16:11 - 07:05

BWI

SYD

24h 54m

2 stops

09:10 - 18:00

SYD

BWI

22h 50m

2 stops

$2,096American Airlines

Wed, 6 May - Wed, 13 May

19:17 - 06:55

BWI

SYD

21h 38m

1 stop

09:10 - 18:00

SYD

BWI

22h 50m

2 stops

$2,098American Airlines

Wed, 6 May - Wed, 13 May

17:45 - 07:00

BWI

SYD

23h 15m

1 stop

09:30 - 16:31

SYD

BWI

21h 01m

1 stop

$2,101United Airlines

Sun, 16 Aug - Mon, 24 Aug

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

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

Qantas Airways

27 May

IAD19:24Washington, D.C. Dulles Intl

21h 31m

1 stop

SYD06:55Sydney Kingsford Smith

8 June

SYD12:00Sydney Kingsford Smith

24h 47m

1 stop

IAD22:47Washington, D.C. Dulles Intl

$1,648

Qantas Airways

14 May

IAD17:59Washington, D.C. Dulles Intl

22h 56m

1 stop

SYD06:55Sydney Kingsford Smith

25 May

SYD12:00Sydney Kingsford Smith

24h 47m

1 stop

IAD22:47Washington, D.C. Dulles Intl

$1,650

Qantas Airways

15 Aug

IAD18:41Washington, D.C. Dulles Intl

22h 14m

1 stop

SYD06:55Sydney Kingsford Smith

31 Aug

SYD12:00Sydney Kingsford Smith

24h 47m

1 stop

IAD22:47Washington, D.C. Dulles Intl

$1,670

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

3 Aug

BWI15:03Baltimore/Washington

25h 52m

2 stops

SYD06:55Sydney Kingsford Smith

19 Aug

SYD10:20Sydney Kingsford Smith

21h 30m

1 stop

BWI17:50Baltimore/Washington

$2,199

Air New Zealand

5 Apr

IAD17:37Washington, D.C. Dulles Intl

25h 08m

2 stops

SYD08:45Sydney Kingsford Smith

27 Apr

SYD10:20Sydney Kingsford Smith

29h 05m

1 stop

IAD01:25Washington, D.C. Dulles Intl

$2,683

Air New Zealand

5 Apr

IAD12:55Washington, D.C. Dulles Intl

42h 55m

2 stops

SYD21:50Sydney Kingsford Smith

27 Apr

SYD10:20Sydney Kingsford Smith

29h 05m

1 stop

IAD01:25Washington, D.C. Dulles Intl

$2,742

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 27/5

19:24-06:55

1 stop21h 31m

Sydney Kingsford Smith

Mon 8/6

12:00-22:47

1 stop24h 47m

$1,648

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Thu 14/5

17:59-06:55

1 stop22h 56m

Sydney Kingsford Smith

Mon 25/5

12:00-22:47

1 stop24h 47m

$1,650

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 15/8

18:41-06:55

1 stop22h 14m

Sydney Kingsford Smith

Mon 31/8

12:00-22:47

1 stop24h 47m

$1,670

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 6/5

11:12-07:05

2 stops29h 53m

Sydney Kingsford Smith

Wed 13/5

09:10-18:42

2 stops47h 32m

$1,706

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Thu 20/8

13:52-06:55

1 stop27h 03m

Sydney Kingsford Smith

Mon 31/8

09:10-20:00

1 stop24h 50m

$1,745

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 25/4

22:07-07:20

2 stops43h 13m

Sydney Kingsford Smith

Mon 4/5

09:20-11:50

2 stops40h 30m

$1,755

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 22/4

08:15-07:20

2 stops33h 05m

Sydney Kingsford Smith

Wed 6/5

09:20-21:18

2 stops25h 58m

$1,757

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 6/5

16:11-07:05

2 stops24h 54m

Sydney Kingsford Smith

Wed 13/5

09:10-18:00

2 stops22h 50m

$2,096

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 6/5

19:17-06:55

1 stop21h 38m

Sydney Kingsford Smith

Wed 13/5

09:10-18:00

2 stops22h 50m

$2,098

Fastest return journey

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 16/8

17:45-07:00

1 stop23h 15m

Sydney Kingsford Smith

Mon 24/8

09:30-16:31

1 stop21h 01m

$2,101

Flights are sorted by cheapest return 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

Stopovers

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?

The month of August is, on average, the cheapest month to fly to Sydney from Washington, D.C., with most prices found around $1,620. If you aren’t able to travel to Sydney during the month of August, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,870.

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 $2,344 when searching weeks before you fly. 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 $946 on momondo.

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

You could potentially save up to 47% 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 return 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 38m
Direct flights	None

The fastest flight from Washington, D.C. to Sydney takes 21h 38m

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?
Washington, D.C. and Sydney Kingsford Smith are 15700.1 km apart from one another. By plane, this route typically takes 21h 38m.
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 refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Sydney Kingsford Smith Airport?
As of March 2026, there is 1 operator available to choose from 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?
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 stopovers. 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 travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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
United Airlines	PriceFrom $1,674	Free cancellation	Rating 7.4 9,491 reviews		Search United Airlines flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Coogee

Leura

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Sydney for you.

Can I find flights from Washington, D.C. to Sydney with flexible booking policies on momondo?

Flights from Washington, D.C. to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Sydney?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Washington, D.C..

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.