WAS - PER

$517 Find Cheap Flights from Washington, D.C. to Perth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Perth departing on 3/8. 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 Perth

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

Cheapest round-trip
$1,394
Cathay Pacific
qua 5/6dom 5/17
DCA - PER • 2 stops
Cheapest one-way
$517
Multiple Airlines
dom 3/8
IAD - PER • 3 stops
Top airlines
Cathay Pacific
Cheapest • from $1,394 (round-trip)
Qantas Airways
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
August
Cheapest • 35% price drop
February
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 Perth!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Perth (WAS-PER)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Perth 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 Washington, D.C. to Perth

qua, mai 6 - dom, mai 17
Cathay Pacific Logo
10:37 am - 10:40 pm
DCA
-
PER
48h 03m2 stops
Cathay Pacific Logo
12:10 am - 8:53 pm
PER
-
DCA
32h 43m2 stops
$1,394Cathay Pacific
seg, mai 11 - seg, mai 25
Multiple Airlines Logo
1:20 pm - 5:50 am
IAD
-
PER
52h 30m2 stops
Multiple Airlines Logo
2:50 pm - 7:50 pm
PER
-
IAD
41h 00m2 stops
$1,410Multiple Airlines
qua, mai 6 - seg, mai 18
Multiple Airlines Logo
7:16 pm - 11:55 pm
BWI
-
PER
40h 39m2 stops
Multiple Airlines Logo
4:55 pm - 6:28 am
PER
-
BWI
49h 33m2 stops
$1,411Multiple Airlines
qua, mai 6 - seg, mai 18
Multiple Airlines Logo
7:20 pm - 11:55 pm
IAD
-
PER
40h 35m2 stops
Multiple Airlines Logo
1:45 pm - 11:59 pm
PER
-
IAD
46h 14m2 stops
$1,439Multiple Airlines
qui, mar 12 - qui, mar 19
Cathay Pacific Logo
11:57 am - 10:55 pm
DCA
-
PER
46h 58m2 stops
Cathay Pacific Logo
8:30 am - 6:59 pm
PER
-
DCA
46h 29m2 stops
$1,468Cathay Pacific
qui, mai 7 - seg, mai 18
Singapore Airlines Logo
5:50 pm - 2:40 pm
BWI
-
PER
32h 50m2 stops
Singapore Airlines Logo
1:45 pm - 4:47 pm
PER
-
BWI
39h 02m2 stops
$1,579Singapore Airlines
sex, fev 6 - sex, fev 13
Qantas Airways Logo
3:41 pm - 6:15 pm
BWI
-
PER
37h 34m2 stops
Qantas Airways Logo
5:20 pm - 11:01 pm
PER
-
BWI
42h 41m2 stops
$1,587Qantas Airways
sáb, fev 7 - sáb, fev 14
Qantas Airways Logo
3:41 pm - 5:20 pm
BWI
-
PER
36h 39m2 stops
Qantas Airways Logo
7:10 am - 11:01 pm
PER
-
BWI
28h 51m2 stops
$1,592Qantas Airways
qui, mar 12 - qui, mar 19
Air New Zealand Logo
12:40 pm - 10:20 pm
BWI
-
PER
45h 40m2 stops
Air New Zealand Logo
11:50 pm - 10:30 pm
PER
-
BWI
34h 40m2 stops
$1,738Air New Zealand
qui, mar 12 - qui, mar 19
Air New Zealand Logo
12:40 pm - 10:20 pm
BWI
-
PER
45h 40m2 stops
Air New Zealand Logo
11:50 pm - 10:30 pm
PER
-
BWI
34h 40m2 stops
$1,740Air New Zealand
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Perth flights

Get data-powered insights and trends into flights from Washington, D.C. to Perth to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington, D.C. to Perth?

The average price of all round-trip flights from Washington, D.C. to Perth clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Perth on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Washington, D.C. to Perth. For your return ticket, we recommend flying on a Thursday and avoiding Saturdays for the best deals.

What is the cheapest month to fly from Washington, D.C. to Perth?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Perth, 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. to Perth is August, where tickets cost $1,212 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is $2,396 and $2,334 respectively.

Good to know

Low seasonNovember
Cheapest flight$517
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Washington Dulles Airport to Perth

When to book flights from Washington, D.C. to Perth

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Perth 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 flights from Washington, D.C. to Perth

  • What is the cheapest flight from Washington, D.C. to Perth?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Perth was $517 for a one-way ticket and $1,394 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Perth?

    Yes

  • Which airports will I be using when flying from Washington, D.C. to Perth?

    Washington, D.C. has 2 major airports: Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl. Perth is the only airport in Perth. You’ll usually find the cheapest deals if you fly from Reagan Washington National Airport.

  • Which aircraft models fly most regularly from Washington, D.C. to Perth?

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

  • Which airline alliances offer flights from Washington, D.C. to Perth?

    oneworld is the only airline alliance operating flights between Washington, D.C. and Perth.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Perth are Qantas Airways and Qatar Airways. With an average price for the route of $1,396 and an overall rating of 7.5, Qantas Airways is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of $2,200 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Perth?

    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 Washington, D.C. to Perth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Perth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Perth from Washington, D.C. 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 Washington, D.C. to Perth?

    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 Perth with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Perth?

    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 Perth from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Washington, D.C. to Perth

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Perth. 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 Washington, D.C. to Perth? 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.
7.5
Qantas AirwaysOverall score based on 957 reviews
7.0Food
7.7Boarding
7.2Entertainment
8.2Crew
7.5Comfort
Airline reviews

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

2.0 MediocreGerard, Nov 2025
CBR - BNE
Read more Qantas Airways reviews

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 !

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Crew and food was good, ok leg room if you don’t have a big box under the seat. And the seats are so narrow (I’m only 70kg), will consider an alternate airline next time

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

The flight was delayed and one member of the crew was a bit rude. But apart from that all good.

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

WiFi didn’t work the entire flight. Very disappointing. Minimal food and options - sadly the state of current affairs. All other aspects of the flight were fine.

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

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.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

Everything you need to know for your flight from Washington, D.C. to Perth

Information on your arrival and departure airports