DCA - SYD

$552 Find Cheap Flights from Reagan Washington National Airport to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Sydney departing on 2/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sydney, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,098
Overall average: $910
Multiple Airlines
Sun 2/8Tue 2/17
DCA - SYD • 1 stop
Cheapest one-way
$552
Typical prices: $415-$441
Multiple Airlines
Tue 2/24
DCA - SYD • 2 stops
Top airlines
Air New Zealand
Cheapest • from $1,303 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 28% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Reagan-National to Sydney (DCA-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Sydney

Sun, Feb 8 - Tue, Feb 17
Multiple Airlines Logo
5:30 pm - 9:00 am
DCA
-
SYD
23h 30m1 stop
Multiple Airlines Logo
5:45 pm - 8:05 pm
SYD
-
DCA
42h 20m1 stop
$1,098Multiple Airlines
Wed, Feb 4 - Wed, Feb 18
Multiple Airlines Logo
5:30 pm - 9:00 am
DCA
-
SYD
23h 30m1 stop
Multiple Airlines Logo
5:45 pm - 8:05 pm
SYD
-
DCA
42h 20m1 stop
$1,140Multiple Airlines
Wed, Apr 1 - Tue, Apr 28
Air Canada Logo
6:59 am - 8:20 am
DCA
-
SYD
34h 21m2 stops
Air Canada Logo
9:20 am - 7:53 pm
SYD
-
DCA
24h 33m2 stops
$1,141Air Canada
Sat, Feb 28 - Wed, Mar 11
American Airlines Logo
4:59 pm - 9:00 am
DCA
-
SYD
24h 01m1 stop
American Airlines Logo
11:20 am - 8:00 pm
SYD
-
DCA
23h 40m1 stop
$1,142American Airlines
Sat, Feb 28 - Wed, Mar 11
American Airlines Logo
8:30 am - 9:00 am
DCA
-
SYD
32h 30m1 stop
American Airlines Logo
11:20 am - 6:55 pm
SYD
-
DCA
22h 35m2 stops
$1,146American Airlines
Sat, Feb 7 - Wed, Feb 18
Qantas Airways Logo
6:56 pm - 6:10 am
DCA
-
SYD
43h 14m1 stop
Qantas Airways Logo
5:30 pm - 8:05 pm
SYD
-
DCA
42h 35m2 stops
$1,240Qantas Airways
Tue, Mar 10 - Tue, Mar 17
Qantas Airways Logo
4:59 pm - 9:50 am
DCA
-
SYD
25h 51m2 stops
Qantas Airways Logo
1:05 pm - 6:42 pm
SYD
-
DCA
20h 37m1 stop
$1,241Qantas Airways
Sat, Feb 7 - Wed, Feb 18
Air New Zealand Logo
5:59 pm - 8:45 am
DCA
-
SYD
46h 46m2 stops
Air New Zealand Logo
9:55 am - 11:50 pm
SYD
-
DCA
29h 55m2 stops
$1,256Air New Zealand
Tue, Feb 17 - Sat, Feb 28
Multiple Airlines Logo
9:59 am - 7:25 am
DCA
-
SYD
29h 26m1 stop
Multiple Airlines Logo
5:45 pm - 1:15 pm
SYD
-
DCA
35h 30m2 stops
$1,259Multiple Airlines
Sun, Feb 15 - Sun, Mar 22
Air New Zealand Logo
2:45 pm - 8:45 am
DCA
-
SYD
26h 00m2 stops
Air New Zealand Logo
7:15 pm - 8:56 pm
SYD
-
DCA
40h 41m2 stops
$1,264Air New Zealand
Booking Insights

KAYAK's insights & trends for Reagan-National to Sydney flights

Get data-powered insights and trends into flights from Reagan-National to Sydney to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Sydney is March, where tickets cost $905 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is $1,668 and $1,599 respectively.

Good to know

Low seasonFebruary
Cheapest flight$552
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Reagan Washington National Airport to Sydney

When to book flights from Reagan-National to Sydney

Are your dates flexible? Find out the best times to travel from Reagan-National to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reagan Washington National Airport to Sydney flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Sydney was $552 for a one-way ticket and $1,098 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and Sydney?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Reagan Washington National Airport and on arrival in Sydney.

  • Which airports will I be using when flying from Reagan Washington National Airport to Sydney?

    Reagan Washington National Airport airport is called Washington, D.C. Reagan-National and the only airport in Sydney is Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Reagan Washington National Airport to Sydney?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Reagan Washington National Airport and Sydney, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Sydney, Delta or Qantas Airways?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Sydney are Delta and Qantas Airways. With an average price for the route of $971 and an overall rating of 7.9, Delta is the most popular choice. Qantas Airways is also a great choice for the route, with an average price of $1,318 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Reagan Washington National Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and SYD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Reagan-National to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reagan-National to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8034 reviews
7.8Entertainment
7.9Comfort
8.5Crew
8.1Boarding
7.2Food
Airline reviews

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

4.0 OkayStephen, Jan 2026
LAS - JFK
Read more Delta reviews

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

Flight was canceled. I was not alerted. It was only kayak that alerted me

Flight was 2.5 hours late leaving. We spent 50 minutes of that sitting on the plane with no explanation. They did reduce the time in the air so we arrived a little less late which was something. The cheese and crackers were okay but the wine was terrible.

Couldn't access entertainment on app as said in an email

Excellent as always, I won't fly to Australia, and back to the US on any other airline. The flight crew is always top notch, and have a way to make one feel extra special. Thank you for your service, I would rate Qantas Airways a 10+.

After already paying for excess luggage prior to flight, i was advised AT check in that i had to pay $816 or forfeit my flight! The lady at the counter was SO rude and had already started offboarding me when i said i would pay it after asking her three times for the exact amount! Have lodged a formal complaint yet heard nothing. Will not ever travel via Qantas again

A few more inches of legroom is all i ask

One of the best Qantas business flights I've had. Quality product

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

We experienced gate changes and a long delay. My seat was dirty when I boarded and I had to use wipes to clean it myself. There was an unpleasant and overpowering cleaning product scent on the plane as well that lingered through the flight.

delayed due to weather. Could not communicate with family since the wifi was broken

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were told the flight was delayed 5 times, then it was moved to the next day.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

Everything you need to know for your flight from Reagan-National to Sydney

Information on your arrival and departure airports