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Cheap flights from Washington, D.C. to Sydney from $510

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 6/3. 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 round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. to Sydney.
Air New Zealand Logo
3:43 pm - 8:45 amIAD-SYD
27h 02m2 stops
Air New Zealand Logo
11:50 am - 12:30 amSYD-IAD
26h 40m2 stops
$1,205Air New Zealand
Find Deal
Sun, Aug 17 - Sun, Aug 31
Air New Zealand Logo
4:47 pm - 8:45 amDCA-SYD
25h 58m2 stops
Air New Zealand Logo
9:55 am - 8:51 pmSYD-DCA
25h 56m2 stops
$1,205Air New Zealand
Find Deal
Tue, Sep 2 - Tue, Oct 7
Qantas Airways Logo
11:30 am - 6:55 amIAD-SYD
29h 25m1 stop
Qantas Airways Logo
12:10 pm - 10:30 pmSYD-IAD
24h 20m1 stop
$1,411Qantas Airways
Find Deal
Wed, Sep 10 - Wed, Sep 24
Qantas Airways Logo
5:20 pm - 7:05 amDCA-SYD
23h 45m1 stop
Qantas Airways Logo
12:10 pm - 9:00 pmSYD-DCA
22h 50m1 stop
$1,442Qantas Airways
Find Deal
Tue, Aug 19 - Tue, Aug 26
Delta Logo
1:52 pm - 6:35 amBWI-SYD
26h 43m2 stops
Delta Logo
9:25 am - 10:39 pmSYD-BWI
27h 14m2 stops
$1,461Delta
Find Deal
Sat, Jun 7 - Sat, Jun 21
American Airlines Logo
2:09 pm - 6:05 amIAD-SYD
25h 56m2 stops
American Airlines Logo
12:10 pm - 10:30 pmSYD-IAD
24h 20m1 stop
$1,510American Airlines
Find Deal
Sun, Sep 14 - Wed, Sep 24
American Airlines Logo
9:14 am - 6:55 amDCA-SYD
31h 41m1 stop
American Airlines Logo
12:10 pm - 6:59 pmSYD-DCA
20h 49m1 stop
$1,510American Airlines
Find Deal
Sun, Sep 14 - Tue, Sep 23
United Airlines Logo
7:00 pm - 6:55 amBWI-SYD
21h 55m1 stop
United Airlines Logo
10:20 am - 5:28 amSYD-BWI
33h 08m1 stop
$1,537United Airlines
Find Deal
Sun, Jun 15 - Tue, Jul 1
United Airlines Logo
5:59 pm - 6:55 amDCA-SYD
22h 56m1 stop
United Airlines Logo
10:20 am - 9:27 pmSYD-DCA
25h 07m1 stop
$1,537United Airlines
Find Deal
Sun, Jun 15 - Tue, Jul 1
Delta Logo
3:59 pm - 6:35 amDCA-SYD
24h 36m2 stops
Delta Logo
9:25 am - 8:37 pmSYD-DCA
25h 12m2 stops
$1,546Delta
Find Deal
Sun, Jun 15 - Tue, Jul 1

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

Our best American Airlines deals on Washington, D.C. to Sydney flight tickets
American Airlines
Sep 14
IAD2:09 pmWashington, D.C. Dulles Intl
25h 56m
2 stops
SYD6:05 amSydney Kingsford Smith
Sep 24
SYD12:10 pmSydney Kingsford Smith
24h 20m
1 stop
IAD10:30 pmWashington, D.C. Dulles Intl
American Airlines
Jun 23
DCA5:30 pmWashington, D.C. Reagan-National
24h 00m
1 stop
SYD7:30 amSydney Kingsford Smith
Jul 14
SYD10:25 amSydney Kingsford Smith
19h 51m
1 stop
DCA4:16 pmWashington, D.C. Reagan-National
American Airlines
Sep 14
DCA7:30 pmWashington, D.C. Reagan-National
21h 25m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 25
SYD12:10 pmSydney Kingsford Smith
20h 49m
1 stop
DCA6:59 pmWashington, D.C. Reagan-National

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
Aug 17
IAD3:43 pmWashington, D.C. Dulles Intl
27h 02m
2 stops
SYD8:45 amSydney Kingsford Smith
Aug 31
SYD11:50 amSydney Kingsford Smith
26h 40m
2 stops
IAD12:30 amWashington, D.C. Dulles Intl
Air New Zealand
Aug 27
IAD5:55 pmWashington, D.C. Dulles Intl
24h 50m
2 stops
SYD8:45 amSydney Kingsford Smith
Sep 17
SYD11:50 amSydney Kingsford Smith
33h 01m
2 stops
IAD6:51 amWashington, D.C. Dulles Intl
Air New Zealand
Aug 19
IAD5:55 pmWashington, D.C. Dulles Intl
26h 40m
2 stops
SYD10:35 amSydney Kingsford Smith
Aug 26
SYD11:50 amSydney Kingsford Smith
26h 40m
2 stops
IAD12:30 amWashington, 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?

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 $920. 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 $931.

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

The cheapest day to depart from Washington, D.C. to Sydney is on a Tuesday when prices can be found for as low as $1,353. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,485.

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 at noon. momondo users have found flights departing from Washington, D.C. to Sydney at noon for as low as $1,219. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,464. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 19 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,307 when searching 19 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 $1,092 on momondo.

How have Washington, D.C. to Sydney flight prices changed over time?

As of April 2025, prices for Washington, D.C. to Sydney flights are approximately 58% 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 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

Best Price Found

$510

Fastest flight time

21h 22m

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 $510. The best round-trip flight deal from Washington, D.C. to Sydney found on momondo in the last 72 hours is $1,205.
The fastest flight from Washington, D.C. to Sydney takes 21h 22m
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?

    A flight from Washington, D.C. to Sydney Kingsford Smith will travel around 9755.6 mi. 21h 22m 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?

  • 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?


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
American AirlinesPriceFrom $600Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $815Free CancellationRating
7.5
828 reviews
Search Qantas Airways flights
DeltaPriceFrom $848Free CancellationRating
8.0
7,919 reviews
Search Delta flights
Air CanadaPriceFrom $1,036Free CancellationRating
7.0
9,195 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,194Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
Air New ZealandPriceFrom $1,375Free CancellationRating
8.0
469 reviews
Search Air New Zealand flights
ANAPriceFrom $1,392Free CancellationRating
8.3
852 reviews
Search ANA flights

Traveling to a place near Sydney?

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

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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