IAD - PER

$589 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl 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
$1,508
Multiple Airlines
Fri 2/27Thu 3/5
IAD - PER • 2 stops
Cheapest one-way
$589
Multiple Airlines
Mon 3/16
IAD - PER • 2 stops
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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 Dulles Intl to Perth (IAD-PER)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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 Dulles Intl to Perth

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
Sun, Feb 1 - Sun, Feb 15
Cathay Pacific Logo
5:26 pm - 6:55 am
IAD
-
PER
48h 29m2 stops
Cathay Pacific Logo
12:25 am - 10:48 pm
PER
-
IAD
35h 23m2 stops
$1,559Cathay Pacific
Wed, Jan 28 - Sat, Feb 21
Qantas Airways Logo
5:26 pm - 7:45 am
IAD
-
PER
49h 19m2 stops
Qantas Airways Logo
5:30 am - 10:48 pm
PER
-
IAD
30h 18m2 stops
$1,621Qantas Airways
Mon, Jan 19 - Sat, Feb 14
Qantas Airways Logo
5:26 pm - 7:45 am
IAD
-
PER
49h 19m2 stops
Qantas Airways Logo
7:10 am - 10:48 pm
PER
-
IAD
28h 38m2 stops
$1,623Qantas Airways
Thu, Jan 29 - Sat, Feb 21
Qantas Airways Logo
5:26 pm - 12:05 pm
IAD
-
PER
29h 39m2 stops
Qantas Airways Logo
7:10 am - 10:48 pm
PER
-
IAD
28h 38m2 stops
$1,625Qantas Airways
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
3:35 pm - 11:55 pm
IAD
-
PER
44h 20m2 stops
Multiple Airlines Logo
10:30 am - 10:05 am
PER
-
IAD
35h 35m2 stops
$1,628Multiple Airlines
Mon, Jan 26 - Mon, Feb 2
Qantas Airways Logo
5:26 pm - 7:45 am
IAD
-
PER
49h 19m2 stops
Qantas Airways Logo
1:25 pm - 9:17 pm
PER
-
IAD
44h 52m2 stops
$1,643Qantas Airways
Wed, Feb 18 - Sun, Mar 1
Multiple Airlines Logo
2:35 pm - 11:55 pm
IAD
-
PER
44h 20m2 stops
Multiple Airlines Logo
10:30 am - 9:05 am
PER
-
IAD
35h 35m2 stops
$1,648Multiple Airlines
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
3:35 pm - 9:45 pm
IAD
-
PER
42h 10m3 stops
Multiple Airlines Logo
10:30 am - 10:05 am
PER
-
IAD
35h 35m2 stops
$1,749Multiple 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 Dulles Intl to Perth flights

Get data-powered insights and trends into flights from Dulles Intl 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 Dulles Airport to Perth?

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

If you are looking for a flight deal from Washington Dulles Airport to Perth, look for departures on Tuesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Perth, Thursday is the cheapest day to fly and Saturday is the most expensive.

Good to know

Low seasonAugust
Cheapest flight$589
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Washington Dulles Airport to Perth

When to book flights from Dulles Intl to Perth

Are your dates flexible? Find out the best times to travel from Dulles Intl 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 Washington Dulles Airport to Perth flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Perth was $589 for a one-way ticket and $1,508 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Perth?

    Yes

  • Which airports will I be using when flying from Washington Dulles Airport to Perth?

    Washington Dulles Airport and Perth are both served by 1 main airport. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and will be arriving at Perth.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Perth?

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

  • Which airline alliances offer flights from Washington Dulles Airport to Perth?

    oneworld is the only airline alliance operating flights between Washington Dulles Airport 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 $1,342 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 $2,163 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Perth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Perth from Washington Dulles 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 Washington Dulles Airport 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 Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and PER 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 Washington Dulles Airport 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 Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dulles Intl 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 Dulles Intl 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
7.7Boarding
7.2Entertainment
7.5Comfort
7.0Food
8.1Crew
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.

Everything you need to know for your flight from Dulles Intl to Perth

Information on your arrival and departure airports