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Cheap flights from Washington, D.C. Reagan-National Airport to Australia from $426

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 Australia departing on 3/8. 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 Australia

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:35 am - 9:00 amDCA-SYD
32h 25m1 stop
American Airlines Logo
11:20 am - 6:42 pmSYD-DCA
23h 22m2 stops
$842American Airlines
Find Deal
Wed, Nov 19 - Fri, Nov 28
American Airlines Logo
8:35 am - 9:00 amDCA-SYD
32h 25m1 stop
American Airlines Logo
2:05 pm - 6:42 pmSYD-DCA
20h 37m1 stop
$843American Airlines
Find Deal
Wed, Nov 19 - Fri, Nov 28
Qantas Airways Logo
8:35 am - 9:00 amDCA-SYD
32h 25m1 stop
Qantas Airways Logo
11:20 am - 8:00 pmSYD-DCA
24h 40m1 stop
$846Qantas Airways
Find Deal
Thu, Dec 25 - Wed, Jan 21
Delta Logo
5:10 pm - 7:35 amDCA-SYD
23h 25m1 stop
Delta Logo
9:25 am - 4:09 pmSYD-DCA
20h 44m1 stop
$861Delta
Find Deal
Wed, Apr 1 - Tue, Apr 28
Delta Logo
9:00 am - 7:35 amDCA-SYD
31h 35m2 stops
Delta Logo
9:25 am - 4:09 pmSYD-DCA
20h 44m1 stop
$866Delta
Find Deal
Wed, Apr 1 - Tue, Apr 28
Multiple Airlines Logo
9:30 am - 7:25 amDCA-SYD
30h 55m1 stop
Multiple Airlines Logo
9:25 pm - 5:29 pmSYD-DCA
34h 04m1 stop
$881Multiple Airlines
Find Deal
Sun, Mar 8 - Fri, May 1
Qantas Airways Logo
4:59 pm - 9:00 amDCA-SYD
24h 01m1 stop
Qantas Airways Logo
5:45 pm - 8:00 pmSYD-DCA
42h 15m1 stop
$893Qantas Airways
Find Deal
Mon, Nov 3 - Wed, Nov 12
Multiple Airlines Logo
8:35 am - 9:00 amDCA-SYD
32h 25m1 stop
Multiple Airlines Logo
5:45 pm - 8:00 pmSYD-DCA
42h 15m1 stop
$908Multiple Airlines
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Thu, Dec 25 - Sun, Jan 11
United Airlines Logo
1:00 pm - 10:00 amDCA-MEL
29h 00m2 stops
United Airlines Logo
12:00 pm - 9:30 pmMEL-DCA
24h 30m1 stop
$1,604United Airlines
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Mon, Mar 2 - Fri, Mar 13
United Airlines Logo
5:59 pm - 10:00 amDCA-MEL
24h 01m1 stop
United Airlines Logo
1:00 pm - 9:36 pmMEL-DCA
24h 36m1 stop
$1,704United Airlines
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Mon, Dec 1 - Mon, Dec 8

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

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Australia flight tickets
American Airlines
Nov 19
DCA8:35 amWashington, D.C. Reagan-National
32h 25m
1 stop
SYD9:00 amSydney Kingsford Smith
Nov 28
SYD11:20 amSydney Kingsford Smith
23h 22m
2 stops
DCA6:42 pmWashington, D.C. Reagan-National
$842
Find similar
American Airlines
Nov 19
DCA8:35 amWashington, D.C. Reagan-National
32h 25m
1 stop
SYD9:00 amSydney Kingsford Smith
Nov 28
SYD2:05 pmSydney Kingsford Smith
20h 37m
1 stop
DCA6:42 pmWashington, D.C. Reagan-National
$843
Find similar
American Airlines
Oct 29
DCA10:15 amWashington, D.C. Reagan-National
29h 40m
1 stop
SYD6:55 amSydney Kingsford Smith
Nov 19
SYD11:20 amSydney Kingsford Smith
20h 35m
1 stop
DCA3:55 pmWashington, D.C. Reagan-National
$844
Find similar

Qantas Airways flights from Washington, D.C. Reagan-National Airport to Australia

Our best Qantas Airways deals on Washington, D.C. Reagan-National Airport to Australia flight tickets
Qantas Airways
Oct 20
DCA5:21 pmWashington, D.C. Reagan-National
23h 09m
1 stop
SYD7:30 amSydney Kingsford Smith
Oct 29
SYD11:20 amSydney Kingsford Smith
23h 40m
1 stop
DCA8:00 pmWashington, D.C. Reagan-National
$843
Find similar
Qantas Airways
Dec 25
DCA8:35 amWashington, D.C. Reagan-National
32h 25m
1 stop
SYD9:00 amSydney Kingsford Smith
Jan 21
SYD11:20 amSydney Kingsford Smith
24h 40m
1 stop
DCA8:00 pmWashington, D.C. Reagan-National
$846
Find similar
Qantas Airways
Oct 19
DCA5:21 pmWashington, D.C. Reagan-National
23h 44m
1 stop
SYD8:05 amSydney Kingsford Smith
Oct 21
SYD10:10 amSydney Kingsford Smith
26h 04m
1 stop
DCA9:14 pmWashington, D.C. Reagan-National
$854
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Australia 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 October 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Australia 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

Wed 11/19

8:35 am-9:00 am

1 stop32h 25m

Sydney Kingsford Smith

Fri 11/28

11:20 am-6:42 pm

2 stops23h 22m

$842

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 11/19

8:35 am-9:00 am

1 stop32h 25m

Sydney Kingsford Smith

Fri 11/28

2:05 pm-6:42 pm

1 stop20h 37m

$843

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Thu 12/25

8:35 am-9:00 am

1 stop32h 25m

Sydney Kingsford Smith

Wed 1/21

11:20 am-8:00 pm

1 stop24h 40m

$846

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 4/1

5:10 pm-7:35 am

1 stop23h 25m

Sydney Kingsford Smith

Tue 4/28

9:25 am-4:09 pm

1 stop20h 44m

$861

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 4/1

9:00 am-7:35 am

2 stops31h 35m

Sydney Kingsford Smith

Tue 4/28

9:25 am-4:09 pm

1 stop20h 44m

$866

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 3/8

9:30 am-7:25 am

1 stop30h 55m

Sydney Kingsford Smith

Fri 5/1

9:25 pm-5:29 pm

1 stop34h 04m

$881

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 11/3

4:59 pm-9:00 am

1 stop24h 01m

Sydney Kingsford Smith

Wed 11/12

5:45 pm-8:00 pm

1 stop42h 15m

$893

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Thu 12/25

8:35 am-9:00 am

1 stop32h 25m

Sydney Kingsford Smith

Sun 1/11

5:45 pm-8:00 pm

1 stop42h 15m

$908

Washington, D.C.Melbourne

DCA - MEL

DCAMEL

Washington, D.C. Reagan-National

Mon 3/2

1:00 pm-10:00 am

2 stops29h 00m

Melbourne

Fri 3/13

12:00 pm-9:30 pm

1 stop24h 30m

$1,604

Washington, D.C.Melbourne

DCA - MEL

DCAMEL

Washington, D.C. Reagan-National

Mon 12/1

5:59 pm-10:00 am

1 stop24h 01m

Melbourne

Mon 12/8

1:00 pm-9:36 pm

1 stop24h 36m

$1,704

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 Australia from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Australia

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 Australia?

The month of March is, on average, the cheapest month to fly to Australia from Washington, D.C. Reagan-National Airport, with most prices found around $864. If you aren’t able to travel during the month of March, then book flights to Australia from Washington, D.C. Reagan-National Airport during August instead. Flights to Australia in August, while not as cheap as those in March, still average around $867.

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

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Australia is on a Thursday. Travelers who choose to depart for Australia on a Thursday will often find tickets for as low as $925. On the other hand, Saturday is the most expensive day to depart from Washington, D.C. Reagan-National Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,751.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Washington, D.C. Reagan-National Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $910 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,498 on average. Flights to Australia from Washington, D.C. Reagan-National Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,201 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia 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 Australia flights?

You could potentially save up to 52% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Australia flight.

Cheap Washington, D.C. Reagan-National Airport to Australia flight deals and tips

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

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Australia. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Australia.
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  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Australia?

    Prices for flights from Washington, D.C. Reagan-National Airport to Australia are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Australia with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $346Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $807Free CancellationRating
7.5
918 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $818Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
DeltaPriceFrom $848Free CancellationRating
7.9
7,978 reviews
Search Delta flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Australia. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Australia from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Australia?

Once all potential Washington, D.C. to Australia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Australia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Australia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Australia and let you know when they change.

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