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Cheap flights from Washington, D.C. Reagan-National Airport to Sydney from $919

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/2. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SYD
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Reagan-National to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 November 2025.

Round-trip from

$1,623

One-way from

$919

Popular in

January

Cheapest in

March

Average price

$1,991
Air Canada
  • Air Canada
  • 9/3-18/3
  • 4 total stops
  • 66h 15m total
  • Washington, D.C. to Sydney
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Fiji Airways
  • Fiji Airways
  • 17/2
  • 2 total stops
  • 27h 35m total
  • Washington, D.C. to Sydney
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($416 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease ($117 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Reagan-National to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Reagan-National to Sydney
Explore the most affordable flight options available from Reagan-National to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2025.

Sun 16/1109:40DCA - SYD
2 stops31h 55mAir Canada
Tue 2/1211:20SYD - DCA
2 stops27h 15mAir Canada
Deal found 4/11$1,820
Sat 22/1120:40DCA - SYD
2 stops44h 55mAir Canada
Tue 2/1211:20SYD - DCA
2 stops40h 59mAir Canada
Deal found 2/11$1,854
Sun 16/1108:35DCA - SYD
1 stop32h 25mAmerican Airlines
Tue 2/1211:20SYD - DCA
2 stops24h 30mAmerican Airlines
Deal found 4/11$1,901
Sat 8/1118:50DCA - SYD
2 stops46h 45mAir Canada
Sun 16/1111:20SYD - DCA
2 stops39h 06mAir Canada
Deal found 4/11$1,908
Sun 9/1116:59DCA - SYD
1 stop24h 01mMultiple Airlines
Sun 23/1114:05SYD - DCA
1 stop20h 37mMultiple Airlines
Deal found 3/11$1,909
Tue 11/1116:59DCA - SYD
1 stop24h 01mAmerican Airlines
Wed 10/1211:20SYD - DCA
1 stop25h 24mAmerican Airlines
Deal found 4/11$1,917
Wed 26/1108:40DCA - SYD
1 stop30h 15mAmerican Airlines
Sun 30/1114:05SYD - DCA
1 stop22h 54mAmerican Airlines
Deal found 4/11$1,918

Cheapflights Fare Finder

 
Customise your flight search to find flights from Reagan-National 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, Cheapflights users made 647,157 searches. Data last updated 5 November 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

Reagan-National

Fly to

Sydney

Route

Depart

Return

Price

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 1/4

14:54-08:05

2 stops26h 11m

Sydney Kingsford Smith

Tue 28/4

09:10-20:53

1 stop25h 43m

$1,923

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 16/11

17:59-09:15

1 stop23h 16m

Sydney Kingsford Smith

Tue 2/12

11:50-15:58

1 stop20h 08m

$1,928

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 23/11

16:51-08:30

1 stop23h 39m

Sydney Kingsford Smith

Wed 3/12

10:40-15:43

1 stop21h 03m

$1,943

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 24/11

12:00-09:05

2 stops29h 05m

Sydney Kingsford Smith

Tue 2/12

11:50-20:56

1 stop25h 06m

$1,943

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 24/11

16:34-07:00

1 stop22h 26m

Sydney Kingsford Smith

Mon 1/12

11:50-10:53

2 stops39h 03m

$1,951

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 24/11

15:30-09:15

2 stops25h 45m

Sydney Kingsford Smith

Wed 3/12

11:50-19:35

2 stops23h 45m

$1,951

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 23/11

16:34-07:00

1 stop22h 26m

Sydney Kingsford Smith

Mon 1/12

11:50-10:53

2 stops39h 03m

$1,951

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 23/11

14:51-09:05

2 stops26h 14m

Sydney Kingsford Smith

Tue 2/12

11:20-18:43

2 stops23h 23m

$1,951

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sat 21/2

11:05-09:35

3 stops30h 30m

Sydney Kingsford Smith

Sun 1/3

11:20-10:23

2 stops39h 03m

$1,964

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sat 22/11

15:06-08:30

2 stops49h 24m

Sydney Kingsford Smith

Wed 3/12

10:40-15:43

1 stop21h 03m

$1,977

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 21 results
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Best time to book a flight from Reagan-National to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Reagan-National with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Sydney

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to Sydney?

Use this chart to determine the optimal time to book a return flight from Reagan-National to Sydney. Price data was last updated on 31 October 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Reagan-National Airport to Sydney, you should look to book at least 11 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Sydney?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Sydney (average of $981). Flying from Washington, D.C. Reagan-National Airport to Sydney in May is currently the most expensive (average of $1,642). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from Washington, D.C. Reagan-National?

    Located just 7.5 km from the city centre, Sydney Kingsford Smith is the airport most travellers will use when flying to Sydney from Washington, D.C. Reagan-National. Booking flights from Washington, D.C. Reagan-National to Kingsford Smith (SYD) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Reagan-National from 0 different airlines.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Sydney?

    There are many flights that can get you from Washington, D.C. Reagan-National Airport to Sydney in 23h 16m. Fly via American Airlines, United Airlines, or Delta to get the fastest option. Airlines will cover a distance of 15704 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Reagan-National to Sydney that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Sydney.

  • Can I find deals for business class flights from Reagan-National to Sydney?

    Yes. Cheapflights offers flight deals from Reagan-National to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Sydney?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Sydney (average of $981). Flying from Washington, D.C. Reagan-National Airport to Sydney in May is currently the most expensive (average of $1,642). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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