IAD - PER

$648 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 4/15. 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
$1,384
Typical prices: $2,014-$2,439
Multiple Airlines
Wed 3/11Wed 3/18
IAD - PER • 2 stops
Cheapest one-way
$648
Multiple Airlines
Wed 4/15
IAD - PER • 3 stops
Top airlines
Cathay Pacific
Cheapest • from $1,548 (round-trip)
Qantas Airways
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
3:35 pm - 5:40 pm
IAD
-
PER
38h 05m
2 stops
Multiple Airlines Logo
4:55 am - 10:05 am
PER
-
IAD
41h 10m
2 stops
$1,384Multiple Airlines
Sun, May 3 - Mon, May 11
Cathay Pacific Logo
5:55 pm - 10:40 pm
IAD
-
PER
40h 45m
2 stops
Cathay Pacific Logo
12:10 am - 11:28 pm
PER
-
IAD
35h 18m
2 stops
$1,548Cathay Pacific
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
3:35 pm - 7:35 pm
IAD
-
PER
40h 00m
2 stops
Multiple Airlines Logo
7:35 am - 10:05 am
PER
-
IAD
38h 30m
2 stops
$1,550Multiple Airlines
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
3:35 pm - 11:55 pm
IAD
-
PER
44h 20m
2 stops
Multiple Airlines Logo
10:30 am - 10:05 am
PER
-
IAD
35h 35m
2 stops
$1,581Multiple Airlines
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
3:35 pm - 11:55 pm
IAD
-
PER
44h 20m
2 stops
Multiple Airlines Logo
10:30 am - 10:05 am
PER
-
IAD
35h 35m
2 stops
$1,621Multiple Airlines
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
3:35 pm - 11:55 pm
IAD
-
PER
44h 20m
2 stops
Multiple Airlines Logo
10:30 am - 10:05 am
PER
-
IAD
35h 35m
2 stops
$1,622Multiple Airlines
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
3:35 pm - 9:45 pm
IAD
-
PER
42h 10m
3 stops
Multiple Airlines Logo
10:30 am - 10:05 am
PER
-
IAD
35h 35m
2 stops
$1,702Multiple Airlines
Sun, May 3 - Tue, May 12
Multiple Airlines Logo
3:10 pm - 9:45 pm
IAD
-
PER
42h 35m
3 stops
Multiple Airlines Logo
12:25 pm - 9:45 am
PER
-
IAD
33h 20m
2 stops
$1,705Multiple Airlines
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
3:35 pm - 9:45 pm
IAD
-
PER
42h 10m
3 stops
Multiple Airlines Logo
10:30 am - 10:05 am
PER
-
IAD
35h 35m
2 stops
$1,742Multiple Airlines
Sun, May 3 - Tue, May 12
Multiple Airlines Logo
3:10 pm - 9:45 pm
IAD
-
PER
42h 35m
3 stops
Multiple Airlines Logo
7:20 am - 9:45 am
PER
-
IAD
38h 25m
3 stops
$1,828Multiple Airlines
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.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Perth?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Perth departing in March.

Good to know

Low seasonAugust
Cheapest flight$648
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 9% 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 $648 for a one-way ticket and $1,384 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 $1,403 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 $2,250 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.

  • Which airlines provide the cheapest flights from Washington Dulles Airport to Perth?

    In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Perth were found on Cathay Pacific ($1,548) and Etihad Airways ($1,867).

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 975 reviews
7.5Comfort
7.7Boarding
8.2Crew
7.0Food
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 !

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

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.

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

Information on your arrival and departure airports