WAS - PER

$589 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 3/16. 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
$1,404
Cathay Pacific
Thu 3/12Wed 3/18
DCA - PER • 2 stops
Cheapest one-way
$589
Multiple Airlines
Mon 3/16
IAD - PER • 2 stops
Top airlines
Qantas Airways
Cheapest • from $1,588 (round-trip)
Qantas Airways
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 34% price drop
January
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

Thu, Mar 12 - Wed, Mar 18
Cathay Pacific Logo
11:57 am - 6:55 am
DCA
-
PER
30h 58m2 stops
Cathay Pacific Logo
12:25 am - 8:41 pm
PER
-
DCA
32h 16m2 stops
$1,404Cathay Pacific
Thu, Mar 12 - Wed, Mar 18
Cathay Pacific Logo
11:57 am - 10:55 pm
DCA
-
PER
46h 58m2 stops
Cathay Pacific Logo
12:25 am - 8:41 pm
PER
-
DCA
32h 16m2 stops
$1,419Cathay Pacific
Fri, Feb 27 - Fri, Mar 6
Multiple Airlines Logo
6:46 pm - 11:55 pm
BWI
-
PER
40h 09m2 stops
Multiple Airlines Logo
5:05 pm - 5:46 pm
PER
-
BWI
37h 41m2 stops
$1,465Multiple Airlines
Fri, Feb 27 - Thu, Mar 5
Multiple Airlines Logo
6:27 pm - 11:55 pm
IAD
-
PER
40h 28m2 stops
Multiple Airlines Logo
1:15 am - 5:20 pm
PER
-
IAD
29h 05m2 stops
$1,508Multiple Airlines
Fri, Feb 27 - Fri, Mar 6
Cathay Pacific Logo
3:21 pm - 6:55 am
DCA
-
PER
50h 34m2 stops
Cathay Pacific Logo
8:30 am - 3:54 pm
PER
-
DCA
44h 24m2 stops
$1,511Cathay Pacific
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
6:46 pm - 5:25 am
BWI
-
PER
46h 39m2 stops
Multiple Airlines Logo
6:40 am - 5:23 pm
PER
-
BWI
46h 43m2 stops
$1,560Multiple Airlines
Tue, Jan 27 - Tue, Feb 3
Qantas Airways Logo
3:41 pm - 12:05 pm
BWI
-
PER
31h 24m2 stops
Qantas Airways Logo
10:40 pm - 2:49 pm
PER
-
BWI
29h 09m2 stops
$1,581Qantas Airways
Wed, Feb 18 - Sun, Mar 1
Qantas Airways Logo
3:22 pm - 6:15 pm
BWI
-
PER
37h 53m2 stops
Qantas Airways Logo
5:20 pm - 11:01 pm
PER
-
BWI
42h 41m2 stops
$1,588Qantas Airways
Wed, Feb 18 - Sat, Feb 28
Singapore Airlines Logo
6:00 am - 12:35 pm
BWI
-
PER
41h 35m2 stops
Singapore Airlines Logo
1:15 am - 6:34 am
PER
-
BWI
42h 19m3 stops
$1,683Singapore Airlines
Mon, Jan 26 - Mon, Feb 2
Air New Zealand Logo
6:45 pm - 9:00 pm
IAD
-
PER
37h 15m2 stops
Air New Zealand Logo
6:50 pm - 9:20 pm
PER
-
IAD
39h 30m2 stops
$1,762Air 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 March, 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$589
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 28% lower on average.
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 $589 for a one-way ticket and $1,404 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 Baltimore/Washington 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 $1,279 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 947 reviews
8.1Crew
7.0Food
7.7Boarding
7.5Comfort
7.2Entertainment
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.

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

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

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

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