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$637+ Cheap flights from Reagan-National (DCA) to Sydney (SYD)

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SYD
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
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Cheap flight deals from Reagan-National to Sydney

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 July 24, 2026.

This Trip.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
DCA
-
SYD
3 stops38h 50m
Multiple Airlines
Fri 9/181:15 pm
SYD
-
DCA
3 stops46h 43m
Multiple Airlines
Deal found 7/23$1,145
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:30 am
DCA
-
SYD
1 stop28h 55m
Multiple Airlines
Wed 12/22:00 pm
SYD
-
DCA
2 stops46h 00m
Multiple Airlines
Deal found 7/21$1,176
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:30 am
DCA
-
SYD
1 stop28h 55m
Multiple Airlines
Thu 12/102:00 pm
SYD
-
DCA
2 stops46h 00m
Multiple Airlines
Deal found 7/21$1,189
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:30 am
DCA
-
SYD
1 stop28h 55m
Multiple Airlines
Thu 12/32:00 pm
SYD
-
DCA
2 stops46h 00m
Multiple Airlines
Deal found 7/21$1,197
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:30 am
DCA
-
SYD
1 stop28h 55m
Multiple Airlines
Wed 12/92:00 pm
SYD
-
DCA
2 stops46h 00m
Multiple Airlines
Deal found 7/22$1,199
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:30 am
DCA
-
SYD
1 stop28h 55m
Multiple Airlines
Thu 12/102:00 pm
SYD
-
DCA
2 stops46h 00m
Multiple Airlines
Deal found 7/21$1,200
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:30 am
DCA
-
SYD
1 stop28h 55m
Multiple Airlines
Wed 12/92:00 pm
SYD
-
DCA
2 stops46h 00m
Multiple Airlines
Deal found 7/22$1,202
This oojo deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:35 pm
DCA
-
SYD
1 stop23h 30m
Qantas Airways
Wed 8/2612:00 pm
SYD
-
DCA
1 stop24h 58m
Qantas Airways
Deal found 7/20$1,209
This oojo deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:35 pm
DCA
-
SYD
1 stop23h 55m
Qantas Airways
Mon 8/3112:00 pm
SYD
-
DCA
1 stop24h 58m
Qantas Airways
Deal found 7/20$1,211
This oojo deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:01 pm
DCA
-
SYD
1 stop23h 04m
Qantas Airways
Wed 8/2612:00 pm
SYD
-
DCA
1 stop24h 58m
Qantas Airways
Deal found 7/21$1,212
This oojo deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:35 pm
DCA
-
SYD
1 stop23h 30m
Qantas Airways
Wed 9/912:00 pm
SYD
-
DCA
1 stop20h 59m
Qantas Airways
Deal found 7/22$1,213
This oojo deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:35 pm
DCA
-
SYD
1 stop23h 55m
Qantas Airways
Sun 8/3012:00 pm
SYD
-
DCA
1 stop23h 27m
Qantas Airways
Deal found 7/21$1,214

Find 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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,145
(Trip.com)

One-way from

$637
(Kiwi.com)

Popular in

August

Cheapest in

July

Average price

$865
Provider with most accurate pricing for Washington, D.C. Reagan-National-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Sydney Kingsford Smith flights.
Search Deals
From Washington, D.C. Reagan-National to Sydney Kingsford Smith
Search Deals
One-way flight from Washington, D.C. Reagan-National to Sydney Kingsford Smith
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated July 24, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 8/19

12:57 pm-6:55 am

2 stops27h 58m

Sydney Kingsford Smith

Wed 8/26

10:20 am-4:43 pm

1 stop20h 23m

$1,245

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 8/9

11:57 am-7:00 am

2 stops29h 03m

Sydney Kingsford Smith

Sun 8/23

10:20 am-10:30 pm

1 stop26h 10m

$1,246

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 8/4

10:58 am-7:00 am

2 stops30h 02m

Sydney Kingsford Smith

Sun 9/27

10:20 am-10:30 pm

1 stop26h 10m

$1,249
Quickest round-trip

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Fri 8/21

2:59 pm-7:00 am

2 stops26h 01m

Sydney Kingsford Smith

Fri 8/28

10:20 am-4:43 pm

1 stop20h 23m

$1,350

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 8/25

9:30 am-6:50 pm

2 stops43h 20m

Sydney Kingsford Smith

Sun 8/30

8:45 pm-8:00 pm

2 stops37h 15m

$1,418

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 8/3

6:01 pm-7:05 am

1 stop23h 04m

Sydney Kingsford Smith

Fri 8/14

10:00 pm-9:27 pm

2 stops37h 27m

$1,449

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 10/6

12:57 pm-7:55 am

2 stops27h 58m

Sydney Kingsford Smith

Thu 10/15

11:20 am-4:43 pm

1 stop20h 23m

$1,471

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Fri 9/4

6:59 pm-6:50 pm

2 stops33h 51m

Sydney Kingsford Smith

Fri 9/11

8:45 pm-8:00 pm

2 stops37h 15m

$1,535

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 8/26

6:59 pm-6:50 pm

2 stops33h 51m

Sydney Kingsford Smith

Sat 9/5

8:45 pm-8:00 pm

2 stops37h 15m

$1,536

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Fri 8/21

6:59 pm-6:50 pm

2 stops33h 51m

Sydney Kingsford Smith

Fri 8/28

8:45 pm-5:59 pm

2 stops35h 14m

$1,645

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Reagan-National to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Sydney in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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

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

Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Sydney (average of $865). Flying from Washington, D.C. Reagan-National Airport to Sydney in August is currently the most expensive (average of $2,258). 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.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated July 24, 2026.
Read reviews from past customers who have flown Qantas Airways and American Airlines from Washington, D.C. Reagan-National Airport to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
1,067 reviews

Crew

8.1

Comfort

7.4

Overall

7.5

Boarding

7.7

Entertainment

7.2

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
1,067 reviews
Qantas Airways
7.5
Good
1,067 reviews

Crew

8.1

Comfort

7.4

Overall

7.5

Boarding

7.7

Entertainment

7.2

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
American Airlines
7.1
Good
11,843 reviews
Qantas Airways
7.5
Good
1,067 reviews

Crew

8.1

Comfort

7.4

Overall

7.5

Boarding

7.7

Entertainment

7.2

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

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?

    If you book a flight to Sydney from Washington, D.C. Reagan-National, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 4.6 mi from the center of Sydney. There are 0 flights from Washington, D.C. Reagan-National to Kingsford Smith per day from 2 different airlines.

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

    United Airlines can get you from Washington, D.C. Reagan-National Airport to Sydney in just under 27h 58m. Your travel time can differ by up to . The distance between Washington, D.C. Reagan-National Airport and Sydney is about 9758 mi.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Sydney round-trip?

    Cheapflights users have booked flights from Washington, D.C. Reagan-National Airport to Sydney round-trip from $836. Another airline that can offer you cheap pricing is Qantas Airways. Users have found that American Airlines is 46% cheaper than the other options available to this destination.

  • 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 vacation 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, July is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Sydney (average of $865). Flying from Washington, D.C. Reagan-National Airport to Sydney in August is currently the most expensive (average of $2,258). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Coogee
Manly

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Alternative routes for Reagan-National to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Reagan-National to Sydney

Discover the top 2 airlines that operate flights from Reagan-National to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$836Average$1,597FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$1,048Average$1,635FlexibilityNo cancel feeOn-time74%

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