What is the cheapest airline that flies from District of Columbia to Sydney Kingsford Smith?

Alaska Airlines is the most popular carrier operating from District of Columbia to Sydney Kingsford Smith

When did momondo last update prices for flights from District of Columbia to Sydney Kingsford Smith Airport?

Prices for flights from District of Columbia to Sydney Kingsford Smith Airport were last updated today.

How many operators does momondo search for flights from District of Columbia to Sydney Kingsford Smith Airport?

There is 1 operator available for flights from District of Columbia to Sydney Kingsford Smith Airport as of July 2026.

How old do you have to be to fly from District of Columbia to Sydney Kingsford Smith Airport?

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 District of Columbia to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$893 Cheap Flights from District of Columbia to Sydney in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from District of Columbia to Sydney

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:05 - 22:25

IAD

SYD

45h 20m

3 stops

13:15 - 19:09

SYD

IAD

43h 54m

3 stops

$1,616Multiple Airlines

Tue, 1 Sep - Mon, 14 Sep

11:05 - 11:50

IAD

SYD

34h 45m

3 stops

13:15 - 16:07

SYD

IAD

40h 52m

3 stops

$1,618Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

09:30 - 06:25

DCA

SYD

28h 55m

1 stop

14:00 - 20:00

SYD

DCA

46h 00m

2 stops

$1,669Multiple Airlines

Tue, 3 Nov - Wed, 9 Dec

09:30 - 06:25

DCA

SYD

28h 55m

1 stop

14:00 - 20:00

SYD

DCA

46h 00m

2 stops

$1,678Multiple Airlines

Tue, 17 Nov - Wed, 2 Dec

09:30 - 06:25

DCA

SYD

28h 55m

1 stop

14:00 - 20:00

SYD

DCA

46h 00m

2 stops

$1,696Multiple Airlines

Tue, 3 Nov - Thu, 10 Dec

09:30 - 06:25

DCA

SYD

28h 55m

1 stop

14:00 - 20:00

SYD

DCA

46h 00m

2 stops

$1,708Multiple Airlines

Tue, 17 Nov - Thu, 3 Dec

17:35 - 07:05

DCA

SYD

23h 30m

1 stop

12:00 - 22:58

SYD

DCA

24h 58m

1 stop

$1,725Qantas Airways

Wed, 19 Aug - Wed, 26 Aug

19:31 - 06:55

IAD

SYD

21h 24m

1 stop

12:00 - 18:27

SYD

IAD

20h 27m

1 stop

$1,726Qantas Airways

Mon, 3 Aug - Wed, 2 Sep

14:53 - 06:55

IAD

SYD

26h 02m

1 stop

12:00 - 18:27

SYD

IAD

20h 27m

1 stop

$1,728Qantas Airways

Wed, 19 Aug - Wed, 26 Aug

17:45 - 08:00

IAD

SYD

23h 15m

1 stop

09:20 - 15:59

SYD

IAD

21h 39m

1 stop

$1,776United Airlines

Sun, 18 Oct - Tue, 27 Oct

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Qantas Airways flights from District of Columbia to Sydney

Our best Qantas Airways deals on District of Columbia to Sydney flight tickets

Qantas Airways

19 Aug

DCA17:35Washington, D.C. Reagan-National

23h 30m

1 stop

SYD07:05Sydney Kingsford Smith

26 Aug

SYD12:00Sydney Kingsford Smith

24h 58m

1 stop

DCA22:58Washington, D.C. Reagan-National

$1,725

Qantas Airways

3 Aug

IAD19:31Washington, D.C. Dulles Intl

21h 24m

1 stop

SYD06:55Sydney Kingsford Smith

2 Sept

SYD12:00Sydney Kingsford Smith

20h 27m

1 stop

IAD18:27Washington, D.C. Dulles Intl

$1,726

Qantas Airways

19 Aug

IAD14:53Washington, D.C. Dulles Intl

26h 02m

1 stop

SYD06:55Sydney Kingsford Smith

26 Aug

SYD12:00Sydney Kingsford Smith

20h 27m

1 stop

IAD18:27Washington, D.C. Dulles Intl

$1,728

United Airlines flights from District of Columbia to Sydney

Our best United Airlines deals on District of Columbia to Sydney flight tickets

United Airlines

18 Oct

IAD15:36Washington, D.C. Dulles Intl

25h 24m

1 stop

SYD08:00Sydney Kingsford Smith

2 Nov

SYD11:20Sydney Kingsford Smith

20h 55m

1 stop

IAD16:15Washington, D.C. Dulles Intl

$1,776

United Airlines

2 Aug

IAD22:23Washington, D.C. Dulles Intl

42h 32m

2 stops

SYD06:55Sydney Kingsford Smith

26 Aug

SYD10:20Sydney Kingsford Smith

19h 58m

1 stop

IAD16:18Washington, D.C. Dulles Intl

$1,782

United Airlines

7 Sept

IAD18:35Washington, D.C. Dulles Intl

22h 20m

1 stop

SYD06:55Sydney Kingsford Smith

16 Sept

SYD10:20Sydney Kingsford Smith

24h 30m

2 stops

IAD20:50Washington, D.C. Dulles Intl

$1,783

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 1/9

11:05-22:25

3 stops45h 20m

Sydney Kingsford Smith

Mon 14/9

13:15-19:09

3 stops43h 54m

$1,616

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 19/8

11:05-11:50

3 stops34h 45m

Sydney Kingsford Smith

Wed 26/8

13:15-16:07

3 stops40h 52m

$1,618

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 3/11

09:30-06:25

1 stop28h 55m

Sydney Kingsford Smith

Wed 9/12

14:00-20:00

2 stops46h 00m

$1,669

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 17/11

09:30-06:25

1 stop28h 55m

Sydney Kingsford Smith

Wed 2/12

14:00-20:00

2 stops46h 00m

$1,678

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 3/11

09:30-06:25

1 stop28h 55m

Sydney Kingsford Smith

Thu 10/12

14:00-20:00

2 stops46h 00m

$1,696

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 17/11

09:30-06:25

1 stop28h 55m

Sydney Kingsford Smith

Thu 3/12

14:00-20:00

2 stops46h 00m

$1,708

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 19/8

17:35-07:05

1 stop23h 30m

Sydney Kingsford Smith

Wed 26/8

12:00-22:58

1 stop24h 58m

$1,725

Fastest return journey

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 3/8

19:31-06:55

1 stop21h 24m

Sydney Kingsford Smith

Wed 2/9

12:00-18:27

1 stop20h 27m

$1,726

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 19/8

14:53-06:55

1 stop26h 02m

Sydney Kingsford Smith

Wed 26/8

12:00-18:27

1 stop20h 27m

$1,728

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 18/10

17:45-08:00

1 stop23h 15m

Sydney Kingsford Smith

Tue 27/10

09:20-15:59

1 stop21h 39m

$1,776

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 District of Columbia 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

Prices

Airlines

What is the cheapest month to fly to Sydney?

The month of November is, on average, the cheapest month to fly to Sydney from District of Columbia, with most prices found around $1,849. If you aren’t able to travel to Sydney during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,922.

How far in advance should I book a flight from District of Columbia to Sydney?

You are more likely to see cheaper flights to Sydney from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $2,316 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from District of Columbia for as low as $1,595 on momondo.

Can stopping save me money on District of Columbia to Sydney flights?

You could potentially save up to 2% on your flight if you consider stops on a District of Columbia to Sydney flight.

Cheap District of Columbia to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Sydney

Fastest flight time	21h 24m
Direct flights	None

The fastest flight from District of Columbia to Sydney takes 21h 24m

There are no direct flights from District of Columbia to Sydney. There are no popular flight routes from District of Columbia to Sydney.

Search flight deals

Frequently asked questions about flying from District of Columbia to Sydney

When did momondo last update prices for flights from District of Columbia to Sydney Kingsford Smith Airport?
Prices for flights from District of Columbia to Sydney Kingsford Smith Airport were last updated today.
How many operators does momondo search for flights from District of Columbia to Sydney Kingsford Smith Airport?
There is 1 operator available for flights from District of Columbia to Sydney Kingsford Smith Airport as of July 2026.
How old do you have to be to fly from District of Columbia to Sydney Kingsford Smith Airport?
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 District of Columbia to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from District of Columbia to Sydney

Compare and see reviews for airlines that fly from District of Columbia to Sydney with momondo

Airline	Rating	Free cancellation	Price
United Airlines	PriceFrom $1,850	Free cancellation	Rating 7.4 10,020 reviews		Search United Airlines flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Manly

Lithgow

Coogee

Leura

Cronulla

Randwick

Bondi Beach

Charlestown

Swansea

Newport

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Sydney?

Finding the right flight to Sydney from District of Columbia 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 Sydney quick and easy, saving you time and money.

Can I find flights from District of Columbia to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Sydney?

Once you have performed a search for District of Columbia to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from District of Columbia to Sydney right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sydney from District of Columbia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.