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Cheap flights from Washington, D.C. Reagan-National Airport to Sydney from $651

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. Reagan-National Airport to Sydney departing on 12/4. 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. Reagan-National Airport to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:40 am - 9:35 amDCA-SYD
31h 55m2 stops
Air Canada Logo
11:20 am - 10:23 amSYD-DCA
39h 03m2 stops
$1,152Air Canada
Find Deal
Tue, Feb 3 - Mon, Feb 23
Fiji Airways Logo
5:08 pm - 10:05 pmDCA-SYD
36h 57m2 stops
Fiji Airways Logo
2:00 pm - 8:57 pmSYD-DCA
22h 57m2 stops
$1,172Fiji Airways
Find Deal
Tue, Feb 3 - Tue, Feb 17
American Airlines Logo
8:35 am - 9:00 amDCA-SYD
32h 25m1 stop
American Airlines Logo
11:20 am - 7:50 pmSYD-DCA
24h 30m2 stops
$1,237American Airlines
Find Deal
Sun, Nov 16 - Tue, Dec 2
American Airlines Logo
4:59 pm - 9:00 amDCA-SYD
24h 01m1 stop
American Airlines Logo
11:20 am - 8:44 pmSYD-DCA
25h 24m1 stop
$1,247American Airlines
Find Deal
Tue, Nov 11 - Wed, Dec 10
United Airlines Logo
2:51 pm - 9:05 amDCA-SYD
26h 14m2 stops
United Airlines Logo
12:10 pm - 4:49 pmSYD-DCA
20h 39m1 stop
$1,254United Airlines
Find Deal
Sun, Nov 16 - Tue, Dec 2
Qantas Airways Logo
3:59 pm - 6:55 amDCA-SYD
22h 56m1 stop
Qantas Airways Logo
2:05 pm - 7:44 pmSYD-DCA
21h 39m1 stop
$1,262Qantas Airways
Find Deal
Sun, Feb 1 - Wed, Feb 11
United Airlines Logo
4:34 pm - 7:00 amDCA-SYD
22h 26m1 stop
United Airlines Logo
11:50 am - 11:44 pmSYD-DCA
27h 54m1 stop
$1,263United Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 16
Delta Logo
4:51 pm - 8:30 amDCA-SYD
23h 39m1 stop
Delta Logo
10:40 am - 3:43 pmSYD-DCA
21h 03m1 stop
$1,264Delta
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Tue, Nov 11 - Wed, Dec 10
Delta Logo
4:51 pm - 8:30 amDCA-SYD
23h 39m1 stop
Delta Logo
10:40 am - 6:03 pmSYD-DCA
23h 23m2 stops
$1,268Delta
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Tue, Nov 11 - Wed, Dec 10
Qantas Airways Logo
5:30 pm - 9:00 amDCA-SYD
23h 30m1 stop
Qantas Airways Logo
9:55 pm - 2:54 pmSYD-DCA
32h 59m2 stops
$1,344Qantas Airways
Find Deal
Tue, Feb 3 - Mon, Feb 23

Air Canada flights from Washington, D.C. Reagan-National Airport to Sydney

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Sydney flight tickets
Air Canada
Feb 3
DCA9:40 amWashington, D.C. Reagan-National
31h 55m
2 stops
SYD9:35 amSydney Kingsford Smith
Feb 23
SYD11:20 amSydney Kingsford Smith
39h 03m
2 stops
DCA10:23 amWashington, D.C. Reagan-National
$1,152
Find similar
Air Canada
Nov 16
DCA9:40 amWashington, D.C. Reagan-National
31h 55m
2 stops
SYD9:35 amSydney Kingsford Smith
Dec 2
SYD11:20 amSydney Kingsford Smith
27h 15m
2 stops
DCA10:35 pmWashington, D.C. Reagan-National
$1,184
Find similar
Air Canada
Nov 16
DCA11:05 amWashington, D.C. Reagan-National
30h 30m
2 stops
SYD9:35 amSydney Kingsford Smith
Dec 2
SYD11:20 amSydney Kingsford Smith
26h 36m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
$1,215
Find similar

American Airlines flights from Washington, D.C. Reagan-National Airport to Sydney

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Sydney flight tickets
American Airlines
Nov 16
DCA8:35 amWashington, D.C. Reagan-National
32h 25m
1 stop
SYD9:00 amSydney Kingsford Smith
Dec 2
SYD11:20 amSydney Kingsford Smith
24h 30m
2 stops
DCA7:50 pmWashington, D.C. Reagan-National
$1,237
Find similar
American Airlines
Nov 11
DCA4:59 pmWashington, D.C. Reagan-National
24h 01m
1 stop
SYD9:00 amSydney Kingsford Smith
Dec 10
SYD11:20 amSydney Kingsford Smith
25h 24m
1 stop
DCA8:44 pmWashington, D.C. Reagan-National
$1,247
Find similar
American Airlines
Nov 26
DCA8:40 amWashington, D.C. Reagan-National
30h 15m
1 stop
SYD6:55 amSydney Kingsford Smith
Nov 30
SYD2:05 pmSydney Kingsford Smith
22h 54m
1 stop
DCA8:59 pmWashington, D.C. Reagan-National
$1,248
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport 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 2/3

9:40 am-9:35 am

2 stops31h 55m

Sydney Kingsford Smith

Mon 2/23

11:20 am-10:23 am

2 stops39h 03m

$1,152

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 2/3

5:08 pm-10:05 pm

2 stops36h 57m

Sydney Kingsford Smith

Tue 2/17

2:00 pm-8:57 pm

2 stops22h 57m

$1,172

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 11/16

8:35 am-9:00 am

1 stop32h 25m

Sydney Kingsford Smith

Tue 12/2

11:20 am-7:50 pm

2 stops24h 30m

$1,237

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 11/11

4:59 pm-9:00 am

1 stop24h 01m

Sydney Kingsford Smith

Wed 12/10

11:20 am-8:44 pm

1 stop25h 24m

$1,247

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 11/16

2:51 pm-9:05 am

2 stops26h 14m

Sydney Kingsford Smith

Tue 12/2

12:10 pm-4:49 pm

1 stop20h 39m

$1,254

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 2/1

3:59 pm-6:55 am

1 stop22h 56m

Sydney Kingsford Smith

Wed 2/11

2:05 pm-7:44 pm

1 stop21h 39m

$1,262

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 11/9

4:34 pm-7:00 am

1 stop22h 26m

Sydney Kingsford Smith

Sun 11/16

11:50 am-11:44 pm

1 stop27h 54m

$1,263

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 11/11

4:51 pm-8:30 am

1 stop23h 39m

Sydney Kingsford Smith

Wed 12/10

10:40 am-3:43 pm

1 stop21h 03m

$1,264

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 11/11

4:51 pm-8:30 am

1 stop23h 39m

Sydney Kingsford Smith

Wed 12/10

10:40 am-6:03 pm

2 stops23h 23m

$1,268

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 2/3

5:30 pm-9:00 am

1 stop23h 30m

Sydney Kingsford Smith

Mon 2/23

9:55 pm-2:54 pm

2 stops32h 59m

$1,344

Flights are sorted by cheapest round-trip 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. Reagan-National Airport 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 cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $864. If you are unable to visit Sydney during the month of March, then departing from Washington, D.C. Reagan-National Airport during the month August is also very affordable. Most momondo users find prices during this month for around $867.

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

The cheapest day to depart from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport 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. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,202 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Washington, D.C. Reagan-National Airport for as low as $842 on momondo.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Sydney flights?

You could potentially save up to 34% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Sydney flight.

When to book flights from Washington, D.C. Reagan-National Airport to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to Sydney (DCA to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Sydney

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Sydney. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Sydney.
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  • How far is Washington, D.C. Reagan-National to Sydney Kingsford Smith by plane?

    The straight-line distance from Washington, D.C. Reagan-National to Sydney Kingsford Smith is 9755.0 mi. In terms of flight time, this usually takes a little over 22h 26m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Sydney Kingsford Smith Airport were last updated today.

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

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to Sydney?

Best airlines flying from Washington, D.C. Reagan-National Airport to Sydney

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Sydney with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $346Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $815Free CancellationRating
7.5
929 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $833Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
DeltaPriceFrom $848Free CancellationRating
7.9
8,001 reviews
Search Delta flights

Traveling to a place near Sydney?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Sydney. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Sydney from Washington, D.C. with this policy.

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?

Price alerts on flights to Sydney from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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