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

Flights via Los Angeles (LAX) offer the lowest average return price of $2,228.

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

Los Angeles (LAX) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

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

Alaska Airlines is the most popular carrier 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 24h 35m and 24h 45m, 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 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.

$845 Cheap Flights from Washington, D.C. to Sydney in 2026/27

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.

09:30 - 06:25DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

28h 55m1 stop Los Angeles

14:00 - 20:00SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

46h 00m2 stops Nadi Los Angeles

$1,863Multiple Airlines

Sun, 31 Jan - Tue, 9 Feb

13:19 - 09:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

28h 16m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

11:20 - 15:55SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

44h 35m2 stops Vancouver Intl Ottawa

$1,869Air Canada

Mon, 8 Feb - Fri, 12 Feb

16:59 - 09:00DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

24h 01m1 stop Los Angeles

14:05 - 20:59SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

22h 54m1 stop Dallas/Fort Worth

$1,873Qantas Airways

Sun, 14 Feb - Sat, 27 Feb

06:36 - 08:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

34h 59m2 stops Los Angeles Auckland Intl

11:50 - 22:43SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

25h 53m2 stops Auckland Intl San Francisco

$1,874Air New Zealand

Sun, 14 Mar - Tue, 23 Mar

09:30 - 06:25DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

28h 55m1 stop Los Angeles

14:00 - 20:00SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

46h 00m2 stops Nadi Los Angeles

$1,874Multiple Airlines

Tue, 2 Feb - Wed, 10 Feb

06:00 - 10:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

36h 35m2 stops Houston George Bush Intcntl Auckland Intl

09:55 - 07:58SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

38h 03m2 stops Auckland Intl Los Angeles

$1,876Air New Zealand

Mon, 8 Feb - Mon, 15 Feb

12:55 - 09:35DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

28h 40m2 stops Ottawa Vancouver Intl

11:20 - 12:19SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

40h 59m3 stops Vancouver Intl Toronto Pearson Intl Ottawa

$1,876Air Canada

Mon, 8 Feb - Fri, 12 Feb

07:00 - 09:00DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

34h 00m2 stops Denver Intl Los Angeles

07:05 - 21:59SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

30h 54m3 stops Auckland Intl Los Angeles Denver Intl

$1,877Multiple Airlines

Fri, 4 Dec - Sat, 12 Dec

09:30 - 06:25DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

28h 55m1 stop Los Angeles

14:00 - 20:00SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

46h 00m2 stops Nadi Los Angeles

$1,879Multiple Airlines

Sun, 31 Jan - Wed, 10 Feb

14:24 - 10:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

28h 11m2 stops Houston George Bush Intcntl Auckland Intl

19:25 - 21:59SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

42h 34m2 stops Auckland Intl San Francisco

$1,883Air New Zealand

Sun, 13 Dec - Sat, 6 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

08:15 - 08:35DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

32h 20m2 stops Houston George Bush Intcntl Auckland Intl

11:55 - 22:15SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

26h 20m2 stops Auckland Intl Houston George Bush Intcntl

$1,991Air New Zealand

Thu, 5 Nov - Thu, 12 Nov

14:38 - 08:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

25h 57m2 stops Houston George Bush Intcntl Auckland Intl

11:55 - 00:59SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

29h 04m2 stops Auckland Intl San Francisco

$1,991Air New Zealand

Thu, 5 Nov - Thu, 12 Nov

08:25 - 08:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

33h 10m2 stops Los Angeles Auckland Intl

11:50 - 06:17SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

34h 27m2 stops Auckland Intl Los Angeles

$1,992Air New Zealand

Sat, 31 Oct - Fri, 6 Nov

10:58 - 08:35DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

29h 37m2 stops Houston George Bush Intcntl Auckland Intl

11:55 - 11:47SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

39h 52m2 stops Auckland Intl Houston George Bush Intcntl

$2,007Air New Zealand

Thu, 5 Nov - Thu, 12 Nov

14:38 - 08:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

25h 57m2 stops Houston George Bush Intcntl Auckland Intl

11:55 - 00:40SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

28h 45m2 stops Auckland Intl Los Angeles

$2,009Air New Zealand

Thu, 5 Nov - Thu, 12 Nov

14:25 - 08:35DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

26h 10m2 stops Houston George Bush Intcntl Auckland Intl

11:55 - 22:30SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

26h 35m2 stops Auckland Intl San Francisco

$2,014Air New Zealand

Thu, 5 Nov - Thu, 12 Nov

08:34 - 08:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

32h 01m2 stops Houston George Bush Intcntl Auckland Intl

07:30 - 05:26SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

37h 56m2 stops Auckland Intl Los Angeles

$2,036Air New Zealand

Sun, 1 Nov - Sun, 15 Nov

14:38 - 21:50IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

39h 12m2 stops Houston George Bush Intcntl Auckland Intl

19:25 - 00:40SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

45h 15m2 stops Auckland Intl Los Angeles

$2,045Air New Zealand

Thu, 5 Nov - Thu, 12 Nov

10:58 - 08:35DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

29h 37m2 stops Houston George Bush Intcntl Auckland Intl

09:55 - 23:57SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

30h 02m2 stops Auckland Intl Houston George Bush Intcntl

$2,059Air New Zealand

Thu, 5 Nov - Thu, 12 Nov

08:34 - 08:35IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

32h 01m2 stops Houston George Bush Intcntl Auckland Intl

11:55 - 22:44SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

26h 49m2 stops Auckland Intl Houston George Bush Intcntl

$2,059Air New Zealand

Thu, 5 Nov - Thu, 12 Nov

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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

14 Mar

IAD06:36Washington, D.C. Dulles Intl

34h 59m

2 stops

SYD08:35Sydney Kingsford Smith

23 Mar

SYD11:50Sydney Kingsford Smith

25h 53m

2 stops

IAD22:43Washington, D.C. Dulles Intl

$1,874

Air New Zealand

8 Feb

IAD06:00Washington, D.C. Dulles Intl

36h 35m

2 stops

SYD10:35Sydney Kingsford Smith

15 Feb

SYD09:55Sydney Kingsford Smith

38h 03m

2 stops

IAD07:58Washington, D.C. Dulles Intl

$1,876

Air New Zealand

13 Dec

IAD14:24Washington, D.C. Dulles Intl

28h 11m

2 stops

SYD10:35Sydney Kingsford Smith

6 Feb

SYD19:25Sydney Kingsford Smith

42h 34m

2 stops

IAD21:59Washington, D.C. Dulles Intl

$1,883

Delta flights from Washington, D.C. to Sydney

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

Delta

11 Nov

IAD12:01Washington, D.C. Dulles Intl

28h 29m

2 stops

SYD08:30Sydney Kingsford Smith

16 Dec

SYD10:40Sydney Kingsford Smith

28h 56m

2 stops

IAD23:36Washington, D.C. Dulles Intl

$2,462

Delta

13 Nov

DCA12:26Washington, D.C. Reagan-National

28h 04m

2 stops

SYD08:30Sydney Kingsford Smith

27 Nov

SYD10:40Sydney Kingsford Smith

22h 00m

2 stops

DCA16:40Washington, D.C. Reagan-National

$2,595

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Sun 31/1

09:30-06:25

1 stop28h 55m

Sydney Kingsford Smith

Tue 9/2

14:00-20:00

2 stops46h 00m

$1,863

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Mon 8/2

13:19-09:35

2 stops28h 16m

Sydney Kingsford Smith

Fri 12/2

11:20-15:55

2 stops44h 35m

$1,869

Fastest return journey

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Sun 14/2

16:59-09:00

1 stop24h 01m

Sydney Kingsford Smith

Sat 27/2

14:05-20:59

1 stop22h 54m

$1,873

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sun 14/3

06:36-08:35

2 stops34h 59m

Sydney Kingsford Smith

Tue 23/3

11:50-22:43

2 stops25h 53m

$1,874

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Tue 2/2

09:30-06:25

1 stop28h 55m

Sydney Kingsford Smith

Wed 10/2

14:00-20:00

2 stops46h 00m

$1,874

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Mon 8/2

06:00-10:35

2 stops36h 35m

Sydney Kingsford Smith

Mon 15/2

09:55-07:58

2 stops38h 03m

$1,876

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Mon 8/2

12:55-09:35

2 stops28h 40m

Sydney Kingsford Smith

Fri 12/2

11:20-12:19

3 stops40h 59m

$1,876

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Fri 4/12

07:00-09:00

2 stops34h 00m

Sydney Kingsford Smith

Sat 12/12

07:05-21:59

3 stops30h 54m

$1,877

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Sun 31/1

09:30-06:25

1 stop28h 55m

Sydney Kingsford Smith

Wed 10/2

14:00-20:00

2 stops46h 00m

$1,879

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sun 13/12

14:24-10:35

2 stops28h 11m

Sydney Kingsford Smith

Sat 6/2

19:25-21:59

2 stops42h 34m

$1,883

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $1,844 to $2,173.
The lowest price recently found on this route was $1,863.

What is the cheapest month to fly to Sydney?

The month of February is, on average, the cheapest month to fly to Sydney from Washington, D.C., with most prices found around $1,869. If you aren’t able to travel to Sydney during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,901.

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 $2,274 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 $1,827 on momondo.

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

You could potentially save up to 9% 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 2026, prices for Washington, D.C. to Sydney flights are approximately 45% 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 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

Best price found	$845
Fastest flight time	23h 50m
Direct flights	None

The best one-way flight to Sydney from Washington, D.C. in the past 72 hours is $845. The best return flight deal from Washington, D.C. to Sydney found on momondo in the last 72 hours is $1,863.

The fastest flight from Washington, D.C. to Sydney takes 23h 50m

There are no direct flights from Washington, D.C. to Sydney. There are no popular flight routes from Washington, D.C. to Sydney.

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Frequently asked questions about flying from Washington, D.C. to Sydney

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 23h 50m.
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 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.

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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.