What is the cheapest airline that flies from Washington, D.C. to Australia?

United Airlines, American Airlines, and Delta are the most popular carriers operating from Washington, D.C. to Australia

How long is the flight from Washington, D.C. to Australia?

The flight from Washington, D.C. to Australia depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Baltimore (a popular airport in Washington, D.C.) to Sydney (the most popular airport in Australia), then the flight time is 23h 16m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to Sydney, then the average flight time is 26h 05m.

When did momondo last update prices for flights from Washington, D.C. to Australia?

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

How old do you have to be to fly from Washington, D.C. to Australia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Australia.

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

The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$824 Cheap Flights from Washington, D.C. to Australia in 2026

Find the cheapest flights from Washington, D.C. to Australia

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:12 - 11:50

IAD

SYD

34h 38m

3 stops

13:15 - 10:17

SYD

IAD

35h 02m

3 stops

$1,393Multiple Airlines

Wed, 9 Sep - Wed, 16 Sep

11:12 - 11:50

IAD

SYD

34h 38m

3 stops

13:15 - 10:17

SYD

IAD

35h 02m

3 stops

$1,413Multiple Airlines

Wed, 9 Sep - Wed, 16 Sep

11:12 - 11:50

IAD

SYD

34h 38m

3 stops

06:00 - 06:20

SYD

IAD

62h 20m

3 stops

$1,457Multiple Airlines

Mon, 14 Sep - Mon, 21 Sep

07:50 - 12:25

IAD

MEL

38h 35m

3 stops

13:25 - 10:27

MEL

IAD

35h 02m

3 stops

$1,466Multiple Airlines

Sun, 13 Sep - Wed, 23 Sep

11:12 - 11:50

IAD

SYD

34h 38m

3 stops

13:15 - 06:20

SYD

IAD

55h 05m

3 stops

$1,470Multiple Airlines

Mon, 14 Sep - Mon, 21 Sep

07:50 - 12:25

IAD

MEL

38h 35m

3 stops

13:25 - 06:20

MEL

IAD

30h 55m

3 stops

$1,504Multiple Airlines

Sun, 13 Sep - Wed, 23 Sep

09:27 - 11:50

BWI

SYD

36h 23m

3 stops

13:15 - 14:11

SYD

BWI

38h 56m

3 stops

$1,513Multiple Airlines

Mon, 14 Sep - Mon, 21 Sep

11:12 - 11:50

IAD

SYD

34h 38m

3 stops

13:15 - 10:17

SYD

IAD

35h 02m

3 stops

$1,522Multiple Airlines

Wed, 9 Sep - Wed, 16 Sep

07:50 - 12:25

IAD

MEL

38h 35m

3 stops

13:25 - 06:20

MEL

IAD

30h 55m

3 stops

$1,608Multiple Airlines

Sun, 13 Sep - Wed, 23 Sep

11:12 - 11:50

IAD

SYD

34h 38m

3 stops

13:15 - 06:20

SYD

IAD

31h 05m

3 stops

$1,612Multiple Airlines

Wed, 9 Sep - Wed, 16 Sep

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Delta flights from Washington, D.C. to Australia

Our best Delta deals on Washington, D.C. to Australia flight tickets

Delta

19 Oct

BWI12:37Baltimore/Washington

29h 13m

2 stops

MEL08:50Melbourne

26 Oct

MEL11:00Melbourne

33h 45m

2 stops

BWI05:45Baltimore/Washington

$1,793

Delta

30 Nov

BWI14:01Baltimore/Washington

26h 29m

2 stops

SYD08:30Sydney Kingsford Smith

28 Feb

SYD10:40Sydney Kingsford Smith

29h 06m

2 stops

BWI23:46Baltimore/Washington

$1,864

Delta

9 Sept

BWI07:35Baltimore/Washington

33h 15m

2 stops

SYD06:50Sydney Kingsford Smith

16 Sept

SYD09:15Sydney Kingsford Smith

24h 08m

2 stops

BWI19:23Baltimore/Washington

$1,865

United Airlines flights from Washington, D.C. to Australia

Our best United Airlines deals on Washington, D.C. to Australia flight tickets

United Airlines

9 Aug

BWI15:03Baltimore/Washington

25h 57m

2 stops

SYD07:00Sydney Kingsford Smith

23 Aug

SYD09:30Sydney Kingsford Smith

21h 05m

1 stop

BWI16:35Baltimore/Washington

$1,687

United Airlines

3 Aug

BWI08:30Baltimore/Washington

32h 25m

2 stops

SYD06:55Sydney Kingsford Smith

2 Sept

SYD09:30Sydney Kingsford Smith

24h 04m

2 stops

BWI19:34Baltimore/Washington

$1,693

United Airlines

9 Aug

BWI15:03Baltimore/Washington

25h 57m

2 stops

SYD07:00Sydney Kingsford Smith

16 Aug

SYD09:30Sydney Kingsford Smith

27h 30m

2 stops

BWI23:00Baltimore/Washington

$1,694

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 9/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Wed 16/9

13:15-10:17

3 stops35h 02m

$1,393

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 9/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Wed 16/9

13:15-10:17

3 stops35h 02m

$1,413

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 14/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Mon 21/9

06:00-06:20

3 stops62h 20m

$1,457

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Sun 13/9

07:50-12:25

3 stops38h 35m

Melbourne

Wed 23/9

13:25-10:27

3 stops35h 02m

$1,466

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 14/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Mon 21/9

13:15-06:20

3 stops55h 05m

$1,470

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Sun 13/9

07:50-12:25

3 stops38h 35m

Melbourne

Wed 23/9

13:25-06:20

3 stops30h 55m

$1,504

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 14/9

09:27-11:50

3 stops36h 23m

Sydney Kingsford Smith

Mon 21/9

13:15-14:11

3 stops38h 56m

$1,512

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 9/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Wed 16/9

13:15-10:17

3 stops35h 02m

$1,522

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Sun 13/9

07:50-12:25

3 stops38h 35m

Melbourne

Wed 23/9

13:25-06:20

3 stops30h 55m

$1,608

Fastest return journey

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 9/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Wed 16/9

13:15-06:20

3 stops31h 05m

$1,612

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. 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

Prices

Airlines

Other information

What is the cheapest month to fly to Australia?

In general, May is the cheapest month to fly from Washington, D.C. to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,976. If you don’t want to visit Australia in May, then you should wait until April to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $1,977.

How far in advance should I book a flight from Washington, D.C. to Australia?

You are more likely to see cheaper flights to Australia from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $2,289 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Washington, D.C. for as low as $1,589 on momondo.

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

You could potentially save up to 2% on your flight if you consider stops on a Washington, D.C. to Australia flight.

Cheap Washington, D.C. to Australia flight deals and tips

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

Fastest flight time	21h 35m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 35m

There are no direct flights from Washington, D.C. to Australia. There are no popular flight routes from Washington, D.C. to Australia.

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Frequently asked questions about flying from Washington, D.C. to Australia

When did momondo last update prices for flights from Washington, D.C. to Australia?
Prices for flights from Washington, D.C. to Australia are refreshed on a daily basis.
How old do you have to be to fly from Washington, D.C. to Australia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Australia from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

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

Yes. All flights to Australia from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Washington, D.C. and Australia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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.