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Cheap flights from Washington, D.C. to Sydney from $644

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 19/2. 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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Find the cheapest flights from Washington, D.C. to Sydney

Cheap return flights

These are some of the best return flight deals from Washington, D.C. to Sydney that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington, D.C. to Sydney.

Cheap last-minute flights

Planning a quick getaway from Washington, D.C. to Sydney? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Sydney, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Washington, D.C. to Sydney

Find recent round-trip train or bus tickets from Washington, D.C. to Sydney.

All round-trip flight deals to Sydney

The cheapest plane tickets to Sydney found on KAYAK recently.
17:26 - 06:55IAD-SYD
23h 29m1 stop
10:25 - 00:31SYD-IAD
28h 06m1 stop
$1,336Qantas Airways
Find Deal
Tue, 6 May - Tue, 20 May
07:31 - 07:25IAD-SYD
32h 54m1 stop
09:10 - 17:22SYD-IAD
22h 12m1 stop
$1,341Qantas Airways
Find Deal
Wed, 26 Mar - Tue, 15 Apr
17:10 - 06:35IAD-SYD
22h 25m1 stop
11:50 - 22:16SYD-IAD
25h 26m1 stop
$1,350American Airlines
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Mon, 10 Mar - Tue, 25 Mar
09:28 - 06:35DCA-SYD
30h 07m1 stop
11:50 - 20:54SYD-DCA
24h 04m1 stop
$1,350American Airlines
Find Deal
Mon, 10 Mar - Tue, 25 Mar
09:00 - 07:25DCA-SYD
30h 25m1 stop
11:50 - 18:46SYD-DCA
22h 56m1 stop
$1,416
Find Deal
Sun, 2 Feb - Tue, 18 Feb
09:00 - 07:25DCA-SYD
30h 25m1 stop
17:25 - 14:44SYD-DCA
37h 19m2 stops
$1,511
Find Deal
Tue, 4 Feb - Mon, 17 Feb
17:25 - 06:35DCA-SYD
23h 10m1 stop
09:25 - 16:14SYD-DCA
20h 49m1 stop
$1,522Delta
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Mon, 7 Apr - Wed, 23 Apr
13:26 - 06:35IAD-SYD
27h 09m2 stops
09:25 - 21:46SYD-IAD
26h 21m2 stops
$1,530Delta
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Sun, 6 Apr - Wed, 23 Apr
06:00 - 07:00BWI-SYD
33h 00m1 stop
11:50 - 16:15SYD-BWI
20h 25m1 stop
$2,411United Airlines
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Mon, 10 Feb - Wed, 19 Feb
06:15 - 09:05BWI-SYD
34h 50m2 stops
11:50 - 16:15SYD-BWI
20h 25m1 stop
$2,417United Airlines
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Mon, 10 Feb - Wed, 19 Feb
17:30 - 09:00DCA-SYD
23h 30m1 stop
$644Qantas Airways
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Wed, 19 Feb
08:00 - 09:00DCA-SYD
33h 00m1 stop
$665Qantas Airways
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Sun, 2 Feb
13:52 - 09:00IAD-SYD
28h 08m2 stops
$682American Airlines
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Sat, 22 Mar
13:48 - 06:35IAD-SYD
24h 47m2 stops
$694American Airlines
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Wed, 5 Mar
10:03 - 06:50IAD-SYD
28h 47m2 stops
$747Delta
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Tue, 18 Feb
12:26 - 08:35DCA-SYD
28h 09m2 stops
$747Delta
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Tue, 18 Feb
17:08 - 12:30DCA-SYD
27h 22m2 stops
$1,036Fiji Airways
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Sat, 8 Mar
08:35 - 07:00IAD-SYD
32h 25m2 stops
$1,400United Airlines
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Tue, 10 Jun
17:40 - 07:00BWI-SYD
23h 20m1 stop
$1,400United Airlines
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Mon, 14 Apr
17:31 - 12:30DCA-SYD
26h 59m2 stops
$6,445Fiji Airways
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Tue, 7 Jan
17:30 - 09:00DCA-SYD
23h 30m1 stop
11:15 - 17:59SYD-DCA
22h 44m2 stops
$1,423American Airlines
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Tue, 24 Dec - Sat, 18 Jan
17:30 - 09:00DCA-SYD
23h 30m1 stop
21:35 - 14:24SYD-DCA
32h 49m2 stops
$1,860Qantas Airways
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Tue, 24 Dec - Thu, 26 Dec
20:40 - 09:35DCA-SYD
44h 55m2 stops
11:20 - 21:00SYD-DCA
25h 40m2 stops
$2,014Air Canada
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Mon, 23 Dec - Sun, 29 Dec
20:40 - 09:35DCA-SYD
44h 55m2 stops
11:20 - 21:00SYD-DCA
25h 40m2 stops
$2,252Air Canada
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Mon, 23 Dec - Sun, 29 Dec
14:16 - 07:25BWI-SYD
49h 09m2 stops
17:25 - 20:14SYD-BWI
42h 49m1 stop
$2,566
Find Deal
Mon, 23 Dec - Sat, 18 Jan
17:10 - 08:35DCA-SYD
23h 25m1 stop
11:05 - 16:00SYD-DCA
20h 55m1 stop
$2,638Delta
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Tue, 24 Dec - Sat, 18 Jan
08:25 - 06:20IAD-SYD
29h 55m1 stop
11:50 - 20:40SYD-IAD
24h 50m1 stop
$2,892United Airlines
Find Deal
Wed, 25 Dec - Wed, 15 Jan
08:30 - 09:05BWI-SYD
32h 35m1 stop
11:20 - 16:28SYD-BWI
21h 08m1 stop
$2,892United Airlines
Find Deal
Tue, 24 Dec - Mon, 13 Jan
11:48 - 08:35BWI-SYD
28h 47m2 stops
11:05 - 21:28SYD-BWI
26h 23m2 stops
$2,914Delta
Find Deal
Tue, 24 Dec - Wed, 15 Jan
17:30 - 09:00DCA-SYD
23h 30m1 stop
11:50 - 16:19SYD-DCA
20h 29m1 stop
$3,103
Find Deal
Tue, 24 Dec - Thu, 26 Dec

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

Our best Qantas Airways deals on Washington, D.C. to Sydney flight tickets
Qantas Airways
6 May
IAD17:26Washington, D.C. Dulles Intl
23h 29m
1 stop
SYD06:55Sydney Kingsford Smith
20 May
SYD10:25Sydney Kingsford Smith
28h 06m
1 stop
IAD00:31Washington, D.C. Dulles Intl
Qantas Airways
26 Mar
IAD07:31Washington, D.C. Dulles Intl
32h 54m
1 stop
SYD07:25Sydney Kingsford Smith
15 Apr
SYD09:10Sydney Kingsford Smith
22h 12m
1 stop
IAD17:22Washington, D.C. Dulles Intl
Qantas Airways
19 Mar
IAD07:31Washington, D.C. Dulles Intl
32h 54m
1 stop
SYD07:25Sydney Kingsford Smith
1 Apr
SYD10:10Sydney Kingsford Smith
22h 12m
1 stop
IAD17:22Washington, D.C. Dulles Intl

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

Our best American Airlines deals on Washington, D.C. to Sydney flight tickets
American Airlines
10 Mar
IAD17:10Washington, D.C. Dulles Intl
22h 25m
1 stop
SYD06:35Sydney Kingsford Smith
25 Mar
SYD11:50Sydney Kingsford Smith
25h 26m
1 stop
IAD22:16Washington, D.C. Dulles Intl
American Airlines
25 Feb
DCA14:59Washington, D.C. Reagan-National
23h 36m
1 stop
SYD06:35Sydney Kingsford Smith
11 Mar
SYD11:50Sydney Kingsford Smith
22h 01m
1 stop
DCA18:51Washington, D.C. Reagan-National
American Airlines
10 Mar
IAD13:52Washington, D.C. Dulles Intl
26h 33m
2 stops
SYD07:25Sydney Kingsford Smith
17 Mar
SYD17:25Sydney Kingsford Smith
30h 25m
2 stops
IAD08:50Washington, D.C. Dulles Intl

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 February is, on average, the cheapest month to fly to Sydney from Washington, D.C., with most prices found around $1,664. If you aren’t able to travel to Sydney during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,701.

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

Our data shows that Monday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $0. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $2,464.

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 $2,237. 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 $3,102 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?

We recommend purchasing flights from Washington, D.C. to Sydney 41 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Sydney for $2,253. However, in the past 72 hours, people saw flights from Washington, D.C. for as low as $2,358.

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

You could potentially save up to 5% 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 December 2024, 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

Best price found

$644

Fastest flight time

21h 33m

Direct flights

None

Airports in Sydney

1 airport
The best one-way flight to Sydney from Washington, D.C. in the past 72 hours is $644. The best return flight deal from Washington, D.C. to Sydney found on momondo in the last 72 hours is $1,336.
The fastest flight from Washington, D.C. to Sydney takes 21h 33m
There are no direct flights from Washington, D.C. to Sydney. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Sydney Kingsford Smith Airport, Washington, D.C. Dulles Intl Airport - Sydney Kingsford Smith Airport and Baltimore/Washington Airport - Sydney Kingsford Smith Airport.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

  • 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 33m.

  • 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
Air CanadaPriceFrom $1,539Free cancellationRating
7.0
8,401 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,653Free cancellationRating
7.4
9,041 reviews
Search United Airlines flights

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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