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Cheap flights from Washington, D.C. to Sydney from $731

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 17/11. 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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Cheap return flights

Fiji Airways Logo
17:11 - 12:30DCA-SYD
27h 19m2 stops
Fiji Airways Logo
14:10 - 23:00SYD-DCA
23h 50m2 stops
$1,631Fiji Airways
Find Deal
Tue, 10 Feb - Tue, 10 Mar
Logo
07:00 - 07:05IAD-SYD
34h 05m2 stops
Logo
12:10 - 23:39SYD-IAD
25h 29m2 stops
$1,657
Find Deal
Sat, 20 Sep - Fri, 3 Oct
Logo
12:21 - 12:45BWI-SYD
33h 24m3 stops
Logo
14:00 - 07:35SYD-BWI
32h 35m2 stops
$1,698
Find Deal
Mon, 20 Oct - Sun, 2 Nov
Qantas Airways Logo
15:22 - 10:55BWI-SYD
27h 33m2 stops
Qantas Airways Logo
14:05 - 18:11SYD-BWI
20h 06m1 stop
$1,701Qantas Airways
Find Deal
Mon, 9 Feb - Sun, 22 Feb
Logo
06:01 - 09:50BWI-SYD
35h 49m2 stops
Logo
14:00 - 07:23SYD-BWI
33h 23m3 stops
$1,709
Find Deal
Mon, 24 Nov - Sun, 7 Dec
Logo
05:35 - 08:45BWI-SYD
35h 10m2 stops
Logo
11:45 - 07:23SYD-BWI
35h 38m3 stops
$1,712
Find Deal
Mon, 3 Nov - Sun, 16 Nov
Qantas Airways Logo
15:20 - 06:55BWI-SYD
23h 35m1 stop
Qantas Airways Logo
06:05 - 14:21SYD-BWI
24h 16m2 stops
$1,714Qantas Airways
Find Deal
Wed, 10 Dec - Mon, 22 Dec
Qantas Airways Logo
13:27 - 06:55BWI-SYD
26h 28m1 stop
Qantas Airways Logo
07:05 - 14:27SYD-BWI
23h 22m2 stops
$1,715Qantas Airways
Find Deal
Fri, 31 Oct - Sat, 15 Nov
Air New Zealand Logo
12:35 - 08:45IAD-SYD
29h 10m2 stops
Air New Zealand Logo
13:55 - 21:26SYD-IAD
23h 31m2 stops
$1,891Air New Zealand
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Air New Zealand Logo
16:34 - 08:45DCA-SYD
25h 11m2 stops
Air New Zealand Logo
09:55 - 20:45SYD-DCA
26h 50m2 stops
$1,891Air New Zealand
Find Deal
Wed, 29 Oct - Wed, 5 Nov

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

Our best Qantas Airways deals on Washington, D.C. to Sydney flight tickets
Qantas Airways
9 Feb
BWI15:22Baltimore/Washington
27h 33m
2 stops
SYD10:55Sydney Kingsford Smith
22 Feb
SYD14:05Sydney Kingsford Smith
20h 06m
1 stop
BWI18:11Baltimore/Washington
$1,701
Find similar
Qantas Airways
10 Dec
BWI15:20Baltimore/Washington
23h 35m
1 stop
SYD06:55Sydney Kingsford Smith
22 Dec
SYD06:05Sydney Kingsford Smith
24h 16m
2 stops
BWI14:21Baltimore/Washington
$1,714
Find similar
Qantas Airways
31 Oct
BWI13:27Baltimore/Washington
26h 28m
1 stop
SYD06:55Sydney Kingsford Smith
15 Nov
SYD07:05Sydney Kingsford Smith
23h 22m
2 stops
BWI14:27Baltimore/Washington
$1,715
Find similar

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

Our best Fiji Airways deals on Washington, D.C. to Sydney flight tickets
Fiji Airways
10 Feb
DCA17:11Washington, D.C. Reagan-National
27h 19m
2 stops
SYD12:30Sydney Kingsford Smith
10 Mar
SYD14:10Sydney Kingsford Smith
23h 50m
2 stops
DCA23:00Washington, D.C. Reagan-National
$1,631
Find similar
Fiji Airways
1 Nov
DCA19:02Washington, D.C. Reagan-National
26h 28m
2 stops
SYD12:30Sydney Kingsford Smith
8 Nov
SYD14:30Sydney Kingsford Smith
22h 29m
2 stops
DCA20:59Washington, D.C. Reagan-National
$1,836
Find similar
Fiji Airways
27 Sept
DCA19:35Washington, D.C. Reagan-National
26h 10m
2 stops
SYD11:45Sydney Kingsford Smith
11 Oct
SYD14:45Sydney Kingsford Smith
23h 15m
2 stops
DCA23:00Washington, D.C. Reagan-National
$1,945
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 29 August 2025.
Use the filters below to find and compare flights from Washington, D.C. to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 10/2

17:11-12:30

2 stops27h 19m

Sydney Kingsford Smith

Tue 10/3

14:10-23:00

2 stops23h 50m

$1,631

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 20/9

07:00-07:05

2 stops34h 05m

Sydney Kingsford Smith

Fri 3/10

12:10-23:39

2 stops25h 29m

$1,657

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 20/10

12:21-12:45

3 stops33h 24m

Sydney Kingsford Smith

Sun 2/11

14:00-07:35

2 stops32h 35m

$1,698

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 9/2

15:22-10:55

2 stops27h 33m

Sydney Kingsford Smith

Sun 22/2

14:05-18:11

1 stop20h 06m

$1,701

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 24/11

06:01-09:50

2 stops35h 49m

Sydney Kingsford Smith

Sun 7/12

14:00-07:23

3 stops33h 23m

$1,709

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 3/11

05:35-08:45

2 stops35h 10m

Sydney Kingsford Smith

Sun 16/11

11:45-07:23

3 stops35h 38m

$1,712

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 10/12

15:20-06:55

1 stop23h 35m

Sydney Kingsford Smith

Mon 22/12

06:05-14:21

2 stops24h 16m

$1,714

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Fri 31/10

13:27-06:55

1 stop26h 28m

Sydney Kingsford Smith

Sat 15/11

07:05-14:27

2 stops23h 22m

$1,715

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 29/10

12:35-08:45

2 stops29h 10m

Sydney Kingsford Smith

Wed 5/11

13:55-21:26

2 stops23h 31m

$1,891

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 29/10

16:34-08:45

2 stops25h 11m

Sydney Kingsford Smith

Wed 5/11

09:55-20:45

2 stops26h 50m

$1,891

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

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?

The month of August is, on average, the cheapest month to fly to Sydney from Washington, D.C., with most prices found around $1,330. If you aren’t able to travel to Sydney during the month of August, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $1,392.

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

Our data shows that Tuesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,112. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $2,358.

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 in the morning. momondo users have found flights departing from Washington, D.C. to Sydney in the morning for as low as $2,140. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,968 on average. Flights to Sydney from Washington, D.C. in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 $2,000 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 $1,490 on momondo.

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

You could potentially save up to 14% 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 August 2025, prices for Washington, D.C. to Sydney flights are approximately 53% 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

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.
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  • 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 32m.

  • 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?

  • 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.

  • 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
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,776Free cancellationRating
7.4
8,941 reviews
Search United Airlines flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Terrigal
Katoomba
Penrith
Lithgow
Manly
Bondi Beach
Leura
Coogee
Randwick
Cronulla
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.

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