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

United Airlines, Delta, and Qantas Airways 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 Washington, D.C. (a popular airport in Washington, D.C.) to Sydney (the most popular airport in Australia), then the flight time is 21h 55m on average. If you fly from Baltimore (another popular airport in Washington, D.C.) to Sydney, then the average flight time is 22h 24m.

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 many operators does momondo search for flights from Washington, D.C. to Australia?

There is 1 operator available for flights from Washington, D.C. to Australia as of December 2025.

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.

$817 Cheap Flights from Washington, D.C. to Australia in 2025/26

1 adult

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:25 - 08:45

BWI

BNE

29h 20m2 stops

10:45 - 23:25

BNE

BWI

27h 40m2 stops

$1,433Multiple Airlines

Tue, 3 Feb - Sat, 14 Feb

09:45 - 09:35

IAD

SYD

31h 50m2 stops

11:20 - 11:35

SYD

IAD

40h 15m2 stops

$1,507Air Canada

Tue, 3 Feb - Tue, 10 Feb

11:05 - 09:35

DCA

SYD

30h 30m2 stops

11:20 - 21:58

SYD

DCA

26h 38m2 stops

$1,507Air Canada

Sun, 8 Feb - Sun, 15 Feb

11:05 - 08:45

DCA

BNE

30h 40m2 stops

06:10 - 19:59

BNE

DCA

28h 49m3 stops

$1,541Multiple Airlines

Mon, 26 Jan - Mon, 2 Feb

06:46 - 05:00

BWI

BNE

32h 14m2 stops

08:40 - 19:04

BNE

BWI

24h 24m2 stops

$1,544American Airlines

Fri, 13 Mar - Fri, 20 Mar

15:41 - 06:30

BWI

BNE

23h 49m1 stop

09:40 - 00:07

BNE

BWI

29h 27m2 stops

$1,555American Airlines

Tue, 3 Feb - Sat, 14 Feb

08:42 - 07:30

BWI

BNE

31h 48m1 stop

10:40 - 17:20

BNE

BWI

20h 40m1 stop

$1,561United Airlines

Sat, 21 Feb - Sat, 21 Mar

08:07 - 07:30

BWI

BNE

32h 23m2 stops

11:40 - 17:26

BNE

BWI

20h 46m1 stop

$1,567United Airlines

Tue, 20 Jan - Tue, 27 Jan

15:41 - 10:55

BWI

SYD

27h 14m2 stops

14:05 - 18:17

SYD

BWI

20h 12m1 stop

$1,648Qantas Airways

Mon, 2 Feb - Thu, 12 Feb

15:21 - 06:55

BWI

SYD

23h 34m1 stop

06:30 - 14:26

SYD

BWI

23h 56m2 stops

$1,658Qantas Airways

Fri, 13 Feb - Fri, 6 Mar

Air Canada flights from Washington, D.C. to Australia

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

Air Canada

3 Feb

IAD09:45Washington, D.C. Dulles Intl

31h 50m

2 stops

SYD09:35Sydney Kingsford Smith

10 Feb

SYD11:20Sydney Kingsford Smith

40h 15m

2 stops

IAD11:35Washington, D.C. Dulles Intl

$1,507

Find similar

Air Canada

27 Jan

IAD09:45Washington, D.C. Dulles Intl

31h 50m

2 stops

SYD09:35Sydney Kingsford Smith

3 Feb

SYD11:20Sydney Kingsford Smith

25h 34m

2 stops

IAD20:54Washington, D.C. Dulles Intl

$1,508

Find similar

Air Canada

20 Jan

DCA11:05Washington, D.C. Reagan-National

30h 40m

2 stops

BNE08:45Brisbane

27 Jan

BNE10:45Brisbane

38h 38m

2 stops

DCA10:23Washington, D.C. Reagan-National

$1,511

Find similar

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

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

Qantas Airways

2 Feb

BWI15:41Baltimore/Washington

27h 14m

2 stops

SYD10:55Sydney Kingsford Smith

12 Feb

SYD14:05Sydney Kingsford Smith

20h 12m

1 stop

BWI18:17Baltimore/Washington

$1,648

Find similar

Qantas Airways

13 Feb

BWI15:21Baltimore/Washington

23h 34m

1 stop

SYD06:55Sydney Kingsford Smith

6 Mar

SYD06:30Sydney Kingsford Smith

23h 56m

2 stops

BWI14:26Baltimore/Washington

$1,658

Find similar

Qantas Airways

4 Feb

BWI15:41Baltimore/Washington

23h 14m

1 stop

SYD06:55Sydney Kingsford Smith

18 Feb

SYD06:05Sydney Kingsford Smith

24h 24m

2 stops

BWI14:29Baltimore/Washington

$1,661

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Tue 3/2

12:25-08:45

2 stops29h 20m

Brisbane

Sat 14/2

10:45-23:25

2 stops27h 40m

$1,433

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 3/2

09:45-09:35

2 stops31h 50m

Sydney Kingsford Smith

Tue 10/2

11:20-11:35

2 stops40h 15m

$1,507

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 8/2

11:05-09:35

2 stops30h 30m

Sydney Kingsford Smith

Sun 15/2

11:20-21:58

2 stops26h 38m

$1,507

Washington, D.C.Brisbane

DCA - BNE

DCABNE

Washington, D.C. Reagan-National

Mon 26/1

11:05-08:45

2 stops30h 40m

Brisbane

Mon 2/2

06:10-19:59

3 stops28h 49m

$1,541

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Fri 13/3

06:46-05:00

2 stops32h 14m

Brisbane

Fri 20/3

08:40-19:04

2 stops24h 24m

$1,544

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Tue 3/2

15:41-06:30

1 stop23h 49m

Brisbane

Sat 14/2

09:40-00:07

2 stops29h 27m

$1,555

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Sat 21/2

08:42-07:30

1 stop31h 48m

Brisbane

Sat 21/3

10:40-17:20

1 stop20h 40m

$1,561

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Tue 20/1

08:07-07:30

2 stops32h 23m

Brisbane

Tue 27/1

11:40-17:26

1 stop20h 46m

$1,567

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 2/2

15:41-10:55

2 stops27h 14m

Sydney Kingsford Smith

Thu 12/2

14:05-18:17

1 stop20h 12m

$1,648

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Fri 13/2

15:21-06:55

1 stop23h 34m

Sydney Kingsford Smith

Fri 6/3

06:30-14:26

2 stops23h 56m

$1,658

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, August 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 $1,295. If you don’t want to visit Australia in August, then you should wait until April to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $1,298.

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

On average, the least expensive day to fly to Australia from Washington, D.C. is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,876. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. to Australia on a Thursday will generally be more expensive and average around $2,399. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Australia is in the morning. momondo users have found flights departing from Washington, D.C. to Australia in the morning for as low as $2,046. 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 Australia are more costly in the evening, with an average ticket price of $3,019. 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 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 $1,922 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 $936 on momondo.

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

You could potentially save up to 26% 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 15m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 15m

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

Search flight deals

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 many operators does momondo search for flights from Washington, D.C. to Australia?
There is 1 operator available for flights from Washington, D.C. to Australia as of December 2025.
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.

Best airlines flying from Washington, D.C. to Australia

Compare and see reviews for airlines that fly from Washington, D.C. to Australia with momondo

Airline	Rating	Free cancellation	Price
United Airlines	PriceFrom $2,178	Free cancellation	Rating 7.4 9,094 reviews		Search United Airlines flights

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.

An easier way to manage your Australia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Australia

Popular Cities in Australia

Look for other cheap flights to Sydney

Look for other cheap flights to Melbourne

Look for other cheap flights to Brisbanefrom $108

Look for other cheap flights to Perthfrom $334

Look for other cheap flights to Adelaide

Look for other cheap flights to Coolangattafrom $107

Look for other cheap flights to Cairnsfrom $162

Look for other cheap flights to Hobartfrom $137

Look for other cheap flights to Canberrafrom $189

Look for other cheap flights to Darwinfrom $287

Look for other cheap flights to Maroochydorefrom $113

Look for other cheap flights to Launcestonfrom $99

Cheap flights from Washington, D.C. to Australia from $817

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 Australia departing on 26/1. 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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Big names, great deals

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Filter for what you want

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

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Air Canada flights from Washington, D.C. to Australia

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

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

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Australia that are best for you.

See travel insights to Australia from

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

What is the cheapest month to fly to Australia?

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

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

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

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

You could potentially save up to 26% on your flight if you consider stops on a Washington, D.C. to Australia flight.

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

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

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

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

Direct flights

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

How many operators does momondo search for flights from Washington, D.C. to Australia?

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

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

Best airlines flying from Washington, D.C. to Australia

Compare and see reviews for airlines that fly from Washington, D.C. to Australia with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Australia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Popular Cities in Australia

Popular flights according to clicks in the last 7 days on momondo