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$492+ Cheap flights from Reagan-National (DCA) to Australia

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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SYD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Reagan-National to Australia

Keep the following information in mind while searching for Reagan-National to Australia flight deals. Data was last updated September 11, 2025.

Round-trip from

$1,154
(Alaska Airlines)

One-way from

$492
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,351
From Washington, D.C. Reagan-National to Australia
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One-way flight from Washington, D.C. Reagan-National to Australia
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Highest demand for flights based on searches. 23% potential increase in price ($375 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Reagan-National to Australia

Cheapest flights from Reagan-National to Australia
Explore the most affordable flight options available from Reagan-National to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:00 amDCA - SYD
2 stops43h 45mAlaska Airlines
Tue 12/239:40 pmSYD - DCA
2 stops34h 27mAlaska Airlines
Deal found 9/11$1,187
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:00 amDCA - SYD
2 stops43h 45mAlaska Airlines
Tue 11/189:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/10$1,195
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:00 pmDCA - SYD
2 stops58h 45mAlaska Airlines
Tue 11/189:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/10$1,205
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/75:00 pmDCA - SYD
2 stops34h 45mAlaska Airlines
Tue 11/189:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/10$1,215
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:00 amDCA - SYD
2 stops43h 45mAlaska Airlines
Tue 11/189:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/10$1,216
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:00 amDCA - SYD
2 stops43h 45mAlaska Airlines
Sun 11/169:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/9$1,219
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:00 amDCA - SYD
2 stops67h 45mAlaska Airlines
Tue 11/189:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/10$1,227
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:00 pmDCA - SYD
2 stops58h 45mAlaska Airlines
Sun 11/169:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/9$1,228
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:00 amDCA - SYD
2 stops43h 45mAlaska Airlines
Sun 11/169:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/9$1,238
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:00 amDCA - SYD
2 stops43h 45mAlaska Airlines
Tue 11/189:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/10$1,241
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:00 amDCA - SYD
2 stops43h 45mAlaska Airlines
Thu 11/209:40 pmSYD - DCA
2 stops64h 19mAlaska Airlines
Deal found 9/10$1,257
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:00 amDCA - SYD
2 stops43h 45mAlaska Airlines
Sun 11/169:40 pmSYD - DCA
2 stops40h 19mAlaska Airlines
Deal found 9/9$1,264

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Australia 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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Australia that are best for you.

Fly from

Reagan-National

Fly to

Australia

Route

Depart

Return

Price

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 11/12

5:00 pm-7:45 pm

2 stops34h 45m

Sydney Kingsford Smith

Tue 11/18

9:40 pm-9:59 pm

2 stops40h 19m

$1,215

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Thu 11/13

8:00 am-7:45 pm

2 stops43h 45m

Sydney Kingsford Smith

Thu 11/20

9:40 pm-9:59 pm

2 stops64h 19m

$1,257

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 11/11

8:00 am-7:45 pm

2 stops43h 45m

Sydney Kingsford Smith

Thu 11/20

9:40 pm-9:59 pm

2 stops64h 19m

$1,276

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 10/28

5:00 pm-7:45 pm

2 stops35h 45m

Sydney Kingsford Smith

Sat 11/8

9:40 pm-4:53 pm

2 stops35h 13m

$1,276

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 11/2

12:50 pm-8:45 am

2 stops27h 55m

Sydney Kingsford Smith

Mon 11/17

11:45 am-11:44 pm

2 stops27h 59m

$1,286

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 11/10

8:00 am-7:45 pm

2 stops67h 45m

Sydney Kingsford Smith

Sat 11/15

9:40 pm-9:59 pm

2 stops40h 19m

$1,297

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 11/11

6:58 pm-7:45 pm

2 stops32h 47m

Sydney Kingsford Smith

Fri 11/14

9:40 pm-8:00 pm

2 stops38h 20m

$1,344

Washington, D.C.Brisbane

DCA - BNE

DCABNE

Washington, D.C. Reagan-National

Sat 11/8

4:59 pm-10:10 am

2 stops26h 11m

Brisbane

Thu 11/20

11:25 am-8:59 pm

2 stops24h 34m

$1,389

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sat 10/25

7:02 pm-12:35 pm

2 stops27h 03m

Adelaide

Sat 11/1

1:15 pm-11:00 pm

2 stops24h 15m

$1,395

Washington, D.C.Canberra

DCA - CBR

DCACBR

Washington, D.C. Reagan-National

Thu 9/25

7:33 pm-12:20 pm

2 stops26h 47m

Canberra

Sat 10/11

2:20 pm-11:00 pm

2 stops23h 40m

$1,398

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 60 results
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Best time to book a flight from Reagan-National to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Australia (average of $1,035). Flying from Washington, D.C. Reagan-National Airport to Australia in December is currently the most expensive (average of $1,626). 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.

What is the cheapest time of day to fly from DCA to AU?

Find hourly flight availability from Reagan-National to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Australia as you normally would.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Delta, Qantas Airways, and United Airlines from Washington, D.C. Reagan-National Airport to Australia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Qantas Airways
7.5
Good
905 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

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

    For as low as $1,389, Alaska Airlines can have you in Australia from Washington, D.C. Reagan-National Airport in 26h 11m. Washington, D.C. Reagan-National Airport and Australia are separated by a distance of 9461 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Australia one-way?

    For one-way options, check prices for Fiji Airways. According to our data, you can fly for as low as $697. Users have also found prices from $893 and $1,151 on Qantas Airways and United Airlines, respectively.

  • What are the most popular routes from Washington, D.C. Reagan-National Airport to Australia?

    When deciding which route to take from Washington, D.C. Reagan-National Airport to Australia consider Washington, D.C. Reagan-National - Sydney Kingsford Smith, Washington, D.C. Reagan-National - Melbourne or Washington, D.C. Reagan-National - Brisbane as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to Australia 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 Australia?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Australia (average of $1,035). Flying from Washington, D.C. Reagan-National Airport to Australia in December is currently the most expensive (average of $1,626). 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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Alternative routes for Reagan-National to Australia

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Sydney flights
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Baltimore to Papeete flights
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Reagan-National to Tamuning flights
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Baltimore to Perth flights
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Baltimore to Queenstown flights
Reagan-National to Cairns flights
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Reagan-National to Queenstown flights
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Top 4 airlines flying from Reagan-National to Australia

Discover the top 4 airlines that operate flights from Reagan-National to Australia. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$346Average$1,818FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$807Average$1,336FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$818Average$985FlexibilityNo cancel feeOn-time71%
DeltaCheapest$848Average$931FlexibilityNo cancel feeOn-timeN/A

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