What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Perth?

Cathay Pacific is the most popular carrier operating from Washington, D.C. Dulles Intl to Perth

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Perth Airport?

Prices for flights from Washington, D.C. Dulles Intl Airport to Perth Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Perth Airport?

As of October 2026, there are 2 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Perth Airport.

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Perth Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Perth Airport.

What documentation or ID do you need to fly to Perth Airport?

The required travel and health documents for your Perth Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Perth Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$664 Cheap Flights from Washington, D.C. Dulles Intl Airport to Perth in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Perth

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:02 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 48m2 stops Seattle/Tacoma Intl Hong Kong Intl

12:25 am - 11:59 pmPER Perth-IAD Washington, D.C. Dulles Intl

35h 34m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,533Multiple Airlines

Tue, Oct 20 - Mon, Oct 26

6:00 am - 6:55 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 55m2 stops Los Angeles Hong Kong Intl

12:25 am - 5:30 amPER Perth-IAD Washington, D.C. Dulles Intl

42h 05m2 stops Hong Kong Intl Los Angeles

$1,533Multiple Airlines

Thu, Nov 12 - Wed, Nov 18

7:13 pm - 10:55 pmIAD Washington, D.C. Dulles Intl-PER Perth

39h 42m2 stops Dallas/Fort Worth Hong Kong Intl

8:30 am - 5:35 amPER Perth-IAD Washington, D.C. Dulles Intl

33h 05m2 stops Hong Kong Intl Los Angeles

$1,583Multiple Airlines

Mon, Oct 26 - Sat, Oct 31

6:10 am - 6:55 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 45m2 stops Los Angeles Hong Kong Intl

8:30 am - 5:00 amPER Perth-IAD Washington, D.C. Dulles Intl

33h 30m2 stops Hong Kong Intl Los Angeles

$1,585Multiple Airlines

Wed, Feb 17 - Sun, Mar 7

3:00 pm - 10:20 pmIAD Washington, D.C. Dulles Intl-PER Perth

42h 20m2 stops Los Angeles Auckland Intl

6:50 pm - 12:31 amPER Perth-IAD Washington, D.C. Dulles Intl

42h 41m2 stops Auckland Intl Los Angeles

$1,598Air New Zealand

Tue, Nov 17 - Tue, Jan 12

5:17 pm - 10:55 pmIAD Washington, D.C. Dulles Intl-PER Perth

64h 38m2 stops Seattle/Tacoma Intl Hong Kong Intl

8:30 am - 5:38 amPER Perth-IAD Washington, D.C. Dulles Intl

34h 08m2 stops Hong Kong Intl Los Angeles

$1,618Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

6:00 am - 10:55 pmIAD Washington, D.C. Dulles Intl-PER Perth

52h 55m2 stops Los Angeles Hong Kong Intl

8:30 am - 5:38 amPER Perth-IAD Washington, D.C. Dulles Intl

34h 08m2 stops Hong Kong Intl Los Angeles

$1,623Cathay Pacific

Wed, Oct 28 - Wed, Nov 4

6:00 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

36h 50m2 stops Los Angeles Hong Kong Intl

12:10 am - 11:59 pmPER Perth-IAD Washington, D.C. Dulles Intl

35h 49m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,630Multiple Airlines

Thu, Oct 15 - Tue, Oct 20

9:05 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-PER Perth

33h 40m1 stop Doha Hamad Intl

1:20 pm - 3:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

39h 35m2 stops Brisbane Doha Hamad Intl

$2,263Qatar Airways

Wed, Oct 28 - Wed, Nov 4

9:00 pm - 6:35 pmIAD Washington, D.C. Dulles Intl-PER Perth

33h 35m1 stop Doha Hamad Intl

6:00 am - 9:10 amPER Perth-IAD Washington, D.C. Dulles Intl

39h 10m2 stops Sydney Kingsford Smith Doha Hamad Intl

$2,294Qatar Airways

Tue, Oct 20 - Tue, Oct 27

Cheap last minute flights

Enter your travel dates to find the best prices.

7:02 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 48m2 stops Seattle/Tacoma Intl Hong Kong Intl

8:30 am - 5:32 amPER Perth-IAD Washington, D.C. Dulles Intl

57h 02m2 stops Hong Kong Intl Los Angeles

$1,874Multiple Airlines

Wed, Oct 7 - Sun, Oct 25

7:02 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 48m2 stops Seattle/Tacoma Intl Hong Kong Intl

8:20 am - 5:32 amPER Perth-IAD Washington, D.C. Dulles Intl

57h 12m2 stops Hong Kong Intl Los Angeles

$1,874Multiple Airlines

Wed, Oct 7 - Sun, Oct 18

7:02 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 48m2 stops Seattle/Tacoma Intl Hong Kong Intl

8:20 am - 5:32 amPER Perth-IAD Washington, D.C. Dulles Intl

57h 12m2 stops Hong Kong Intl Los Angeles

$1,874Multiple Airlines

Wed, Oct 7 - Sun, Oct 18

6:00 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

60h 50m2 stops Los Angeles Hong Kong Intl

8:20 am - 5:32 amPER Perth-IAD Washington, D.C. Dulles Intl

33h 12m2 stops Hong Kong Intl Los Angeles

$2,156Cathay Pacific

Wed, Oct 7 - Sun, Oct 18

3:10 pm - 3:05 pmIAD Washington, D.C. Dulles Intl-PER Perth

35h 55m3 stops Abu Dhabi Zayed Intl Mumbai Chhatrapati Shivaji Intl Bangkok Suvarnabhumi

11:35 pm - 9:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

34h 20m2 stops Manila Ninoy Aquino Intl Taipei City Taiwan Taoyuan Intl

$2,534Multiple Airlines

Wed, Oct 7 - Sun, Oct 25

3:10 pm - 3:05 pmIAD Washington, D.C. Dulles Intl-PER Perth

35h 55m3 stops Abu Dhabi Zayed Intl Mumbai Chhatrapati Shivaji Intl Bangkok Suvarnabhumi

10:55 pm - 10:00 pmPER Perth-IAD Washington, D.C. Dulles Intl

35h 05m2 stops Manila Ninoy Aquino Intl Taipei City Taiwan Taoyuan Intl

$2,542Multiple Airlines

Wed, Oct 7 - Sun, Oct 18

9:00 pm - 11:10 pmIAD Washington, D.C. Dulles Intl-PER Perth

38h 10m2 stops Doha Hamad Intl Melbourne

10:45 pm - 3:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

29h 10m1 stop Doha Hamad Intl

$2,575Qatar Airways

Wed, Oct 7 - Sun, Oct 18

9:00 pm - 10:50 pmIAD Washington, D.C. Dulles Intl-PER Perth

37h 50m2 stops Doha Hamad Intl Adelaide

10:45 pm - 3:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

29h 10m1 stop Doha Hamad Intl

$2,638Qatar Airways

Wed, Oct 7 - Sun, Oct 18

3:10 pm - 3:05 pmIAD Washington, D.C. Dulles Intl-PER Perth

35h 55m3 stops Abu Dhabi Zayed Intl Mumbai Chhatrapati Shivaji Intl Bangkok Suvarnabhumi

11:35 pm - 9:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

34h 20m2 stops Manila Ninoy Aquino Intl Taipei City Taiwan Taoyuan Intl

$2,668Multiple Airlines

Wed, Oct 7 - Sun, Oct 25

3:10 pm - 3:05 pmIAD Washington, D.C. Dulles Intl-PER Perth

35h 55m3 stops Abu Dhabi Zayed Intl Mumbai Chhatrapati Shivaji Intl Bangkok Suvarnabhumi

4:20 pm - 3:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

35h 35m3 stops Bangkok Suvarnabhumi Kolkata Netaji S. Chandra Doha Hamad Intl

$2,757Multiple Airlines

Wed, Oct 7 - Sun, Oct 18

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Malaysia Airlines flights from Washington, D.C. Dulles Intl Airport to Perth

Our best Malaysia Airlines deals on Washington, D.C. Dulles Intl Airport to Perth flight tickets

Malaysia Airlines

Nov 9

IAD8:05 pmWashington, D.C. Dulles Intl

40h 25m

2 stops

PER1:30 amPerth

Nov 12

PER4:15 pmPerth

36h 40m

2 stops

IAD3:55 pmWashington, D.C. Dulles Intl

$2,231

Malaysia Airlines

Nov 9

IAD8:05 pmWashington, D.C. Dulles Intl

40h 25m

2 stops

PER1:30 amPerth

Nov 12

PER4:15 pmPerth

60h 40m

2 stops

IAD3:55 pmWashington, D.C. Dulles Intl

$2,237

Cathay Pacific flights from Washington, D.C. Dulles Intl Airport to Perth

Our best Cathay Pacific deals on Washington, D.C. Dulles Intl Airport to Perth flight tickets

Cathay Pacific

Oct 28

IAD6:00 amWashington, D.C. Dulles Intl

52h 55m

2 stops

PER10:55 pmPerth

Nov 4

PER8:30 amPerth

34h 08m

2 stops

IAD5:38 amWashington, D.C. Dulles Intl

$1,623

Cathay Pacific

Nov 17

IAD6:00 amWashington, D.C. Dulles Intl

51h 55m

2 stops

PER10:55 pmPerth

Jan 11

PER12:25 amPerth

36h 31m

2 stops

IAD11:56 pmWashington, D.C. Dulles Intl

$1,836

Cathay Pacific

Jan 10

IAD5:30 pmWashington, D.C. Dulles Intl

48h 25m

2 stops

PER6:55 amPerth

Jan 31

PER12:25 amPerth

35h 30m

2 stops

IAD10:55 pmWashington, D.C. Dulles Intl

$1,849

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Tue 10/20

7:02 am-6:50 am

2 stops35h 48m

Perth

Mon 10/26

12:25 am-11:59 pm

2 stops35h 34m

$1,533

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Thu 11/12

6:00 am-6:55 am

2 stops35h 55m

Perth

Wed 11/18

12:25 am-5:30 am

2 stops42h 05m

$1,533

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Mon 10/26

7:13 pm-10:55 pm

2 stops39h 42m

Perth

Sat 10/31

8:30 am-5:35 am

2 stops33h 05m

$1,583

Quickest round-trip

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Wed 2/17

6:10 am-6:55 am

2 stops35h 45m

Perth

Sun 3/7

8:30 am-5:00 am

2 stops33h 30m

$1,585

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Tue 11/17

3:00 pm-10:20 pm

2 stops42h 20m

Perth

Tue 1/12

6:50 pm-12:31 am

2 stops42h 41m

$1,598

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Sun 11/1

5:17 pm-10:55 pm

2 stops64h 38m

Perth

Sun 11/8

8:30 am-5:38 am

2 stops34h 08m

$1,618

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Wed 10/28

6:00 am-10:55 pm

2 stops52h 55m

Perth

Wed 11/4

8:30 am-5:38 am

2 stops34h 08m

$1,623

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Thu 10/15

6:00 am-6:50 am

2 stops36h 50m

Perth

Tue 10/20

12:10 am-11:59 pm

2 stops35h 49m

$1,630

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Wed 10/28

9:05 pm-6:45 pm

1 stop33h 40m

Perth

Wed 11/4

1:20 pm-3:55 pm

2 stops39h 35m

$2,263

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Tue 10/20

9:00 pm-6:35 pm

1 stop33h 35m

Perth

Tue 10/27

6:00 am-9:10 am

2 stops39h 10m

$2,294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Perth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Perth flights?

You could potentially save up to 28% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Perth flight.

When to book flights from Washington, D.C. Dulles Intl Airport to Perth

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Perth according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Perth (IAD to PER) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Perth

Best Price Found	$664
Fastest flight time	35h 48m
Direct flights	None

The best one-way flight to Perth from Washington, D.C. Dulles Intl Airport in the past 72 hours is $664. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Perth found on momondo in the last 72 hours is $1,533.

The fastest flight from Washington, D.C. Dulles Intl Airport to Perth takes 35h 48m

There are no direct flights from Washington, D.C. Dulles Intl Airport to Perth. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Perth.

Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Perth

How far is Washington, D.C. Dulles Intl to Perth by plane?
Perth is 11538.7 mi away from Washington, D.C. Dulles Intl. By plane, this route typically takes 35h 48m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Perth Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Perth Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Perth Airport?
As of October 2026, there are 2 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Perth Airport.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Perth Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Perth Airport.
What documentation or ID do you need to fly to Perth Airport?
The required travel and health documents for your Perth Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Perth Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Perth?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Perth, the leading airline is Qantas Airways, making up 62% of the total bookings. Other popular airlines include Qatar Airways with 38%.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Perth

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Perth with momondo

Airline	Rating	Free Cancellation	Price
Qantas Airways	PriceFrom $1,264	Free Cancellation	Rating 7.5 1,101 reviews		Search Qantas Airways flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.3 3,726 reviews		Search Qatar Airways flights

Fremantle

Mandurah

Rottnest Island

Scarborough

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Why should I use momondo to find a flight deal from Washington, D.C. to Perth?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Perth for you.

Can I find flights from Washington, D.C. to Perth with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Perth on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Perth?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Perth from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Perth right now. Can momondo alert me if prices change?

Price alerts on flights to Perth from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.