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 August 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.

$732 Cheap Flights from Washington, D.C. Dulles Intl Airport to Perth in 2026

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.

9:00 pm - 7:50 pmIAD Washington, D.C. Dulles Intl-PER Perth

34h 50m2 stops Doha Hamad Intl Kuala Lumpur Intl

8:50 pm - 8:45 amPER Perth-IAD Washington, D.C. Dulles Intl

47h 55m2 stops Kuala Lumpur Intl Doha Hamad Intl

$1,401Multiple Airlines

Sun, Sep 27 - Sun, Oct 4

9:10 pm - 5:35 amIAD Washington, D.C. Dulles Intl-PER Perth

44h 25m2 stops Zurich Bangkok Suvarnabhumi

10:30 am - 3:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

42h 25m2 stops Singapore Changi Frankfurt am Main

$1,468Multiple Airlines

Mon, Oct 26 - Fri, Nov 6

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

36h 50m2 stops Los Angeles 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

$1,484Multiple Airlines

Mon, Oct 19 - Sun, Oct 25

7:00 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 50m2 stops Seattle/Tacoma Intl Hong Kong Intl

8:20 am - 11:59 pmPER Perth-IAD Washington, D.C. Dulles Intl

51h 39m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,484Multiple Airlines

Tue, Sep 15 - Mon, Sep 21

12:14 pm - 9:55 amIAD Washington, D.C. Dulles Intl-PER Perth

32h 41m2 stops Dallas/Fort Worth Melbourne

10:55 pm - 11:23 pmPER Perth-IAD Washington, D.C. Dulles Intl

37h 28m2 stops Sydney Kingsford Smith Dallas/Fort Worth

$2,294Qantas Airways

Thu, Dec 24 - Fri, Jan 8

9:00 pm - 10:30 pmIAD Washington, D.C. Dulles Intl-PER Perth

37h 30m2 stops Doha Hamad Intl Sydney Kingsford Smith

10:45 pm - 3:40 pmPER Perth-IAD Washington, D.C. Dulles Intl

28h 55m1 stop Doha Hamad Intl

$2,956Qatar Airways

Wed, Oct 7 - Sun, Oct 18

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

33h 35m1 stop Doha Hamad Intl

10:45 pm - 3:40 pmPER Perth-IAD Washington, D.C. Dulles Intl

28h 55m1 stop Doha Hamad Intl

$3,312Qatar Airways

Mon, Sep 14 - Mon, Sep 21

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

33h 35m1 stop Doha Hamad Intl

10:45 pm - 4:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

30h 10m1 stop Doha Hamad Intl

$3,328Qatar Airways

Mon, Oct 19 - Mon, Oct 26

8:05 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-PER Perth

33h 40m1 stop Doha Hamad Intl

10:45 pm - 8:30 amPER Perth-IAD Washington, D.C. Dulles Intl

46h 45m1 stop Doha Hamad Intl

$3,330Qatar Airways

Wed, Dec 30 - Fri, Jan 22

5:50 pm - 2:10 pmIAD Washington, D.C. Dulles Intl-PER Perth

31h 20m2 stops Dallas/Fort Worth Brisbane

12:15 pm - 5:15 pmPER Perth-IAD Washington, D.C. Dulles Intl

42h 00m2 stops Brisbane Dallas/Fort Worth

$3,527Qantas Airways

Fri, Dec 18 - Sat, Jan 9

Cheap last minute flights

Enter your travel dates to find the best prices.

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

33h 35m1 stop Doha Hamad Intl

10:45 pm - 8:45 amPER Perth-IAD Washington, D.C. Dulles Intl

46h 00m1 stop Doha Hamad Intl

$9,676Qatar Airways

Fri, Aug 21 - Sun, Sep 6

2:53 pm - 6:35 pmIAD Washington, D.C. Dulles Intl-PER Perth

39h 42m2 stops Dallas/Fort Worth Doha Hamad Intl

10:45 pm - 8:45 amPER Perth-IAD Washington, D.C. Dulles Intl

46h 00m1 stop Doha Hamad Intl

$10,538Qatar Airways

Fri, Aug 21 - Sun, Sep 6

6:15 pm - 12:40 amIAD Washington, D.C. Dulles Intl-PER Perth

42h 25m2 stops Paris Charles de Gaulle Singapore Changi

8:30 pm - 3:35 pmPER Perth-IAD Washington, D.C. Dulles Intl

55h 05m3 stops Denpasar Bali Ngurah Rai Singapore Changi Amsterdam Schiphol

$10,937KLM

Fri, Aug 21 - Sun, Sep 6

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

33h 35m1 stop Doha Hamad Intl

10:45 pm - 8:45 amPER Perth-IAD Washington, D.C. Dulles Intl

46h 00m1 stop Doha Hamad Intl

$11,182Qatar Airways

Fri, Aug 21 - Sun, Sep 6

8:20 pm - 10:40 pmIAD Washington, D.C. Dulles Intl-PER Perth

62h 20m2 stops Zurich Hong Kong Intl

8:20 am - 4:45 pmPER Perth-IAD Washington, D.C. Dulles Intl

44h 25m2 stops Hong Kong Intl Zurich

$11,716SWISS

Fri, Aug 21 - Sun, Sep 6

8:20 pm - 10:40 pmIAD Washington, D.C. Dulles Intl-PER Perth

62h 20m2 stops Zurich Hong Kong Intl

8:20 am - 1:35 pmPER Perth-IAD Washington, D.C. Dulles Intl

41h 15m2 stops Hong Kong Intl Frankfurt am Main

$11,718Multiple Airlines

Fri, Aug 21 - Sun, Sep 6

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

36h 10m2 stops Doha Hamad Intl Melbourne

10:45 pm - 8:45 amPER Perth-IAD Washington, D.C. Dulles Intl

46h 00m1 stop Doha Hamad Intl

$11,945Qatar Airways

Fri, Aug 21 - Sun, Sep 6

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

33h 35m1 stop Doha Hamad Intl

10:45 pm - 3:40 pmPER Perth-IAD Washington, D.C. Dulles Intl

28h 55m1 stop Doha Hamad Intl

$12,255Qatar Airways

Fri, Aug 21 - Sun, Sep 6

2:53 pm - 6:35 pmIAD Washington, D.C. Dulles Intl-PER Perth

39h 42m2 stops Dallas/Fort Worth Doha Hamad Intl

10:45 pm - 8:45 amPER Perth-IAD Washington, D.C. Dulles Intl

46h 00m1 stop Doha Hamad Intl

$12,298Qatar Airways

Fri, Aug 21 - Sun, Sep 6

8:20 pm - 10:40 pmIAD Washington, D.C. Dulles Intl-PER Perth

62h 20m2 stops Zurich Hong Kong Intl

8:20 am - 1:35 pmPER Perth-IAD Washington, D.C. Dulles Intl

41h 15m2 stops Hong Kong Intl Frankfurt am Main

$12,434Multiple Airlines

Fri, Aug 21 - Sun, Sep 6

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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

Nov 5

IAD6:00 amWashington, D.C. Dulles Intl

51h 55m

2 stops

PER10:55 pmPerth

Nov 12

PER8:30 amPerth

34h 08m

2 stops

IAD5:38 amWashington, D.C. Dulles Intl

$1,573

Cathay Pacific

Nov 5

IAD6:00 amWashington, D.C. Dulles Intl

51h 55m

2 stops

PER10:55 pmPerth

Nov 15

PER8:30 amPerth

58h 08m

2 stops

IAD5:38 amWashington, D.C. Dulles Intl

$1,582

Cathay Pacific

Nov 5

IAD6:00 amWashington, D.C. Dulles Intl

35h 55m

2 stops

PER6:55 amPerth

Nov 12

PER12:25 amPerth

35h 54m

2 stops

IAD11:19 pmWashington, D.C. Dulles Intl

$1,589

Air Canada flights from Washington, D.C. Dulles Intl Airport to Perth

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

Air Canada

Oct 19

IAD10:19 pmWashington, D.C. Dulles Intl

58h 21m

3 stops

PER8:40 pmPerth

Oct 26

PER3:15 pmPerth

40h 55m

3 stops

IAD8:10 pmWashington, D.C. Dulles Intl

$1,738

Air Canada

Oct 26

IAD5:15 pmWashington, D.C. Dulles Intl

63h 05m

3 stops

PER8:20 pmPerth

Nov 6

PER10:55 pmPerth

53h 50m

3 stops

IAD3:45 pmWashington, D.C. Dulles Intl

$1,762

Air Canada

Sep 13

IAD8:29 amWashington, D.C. Dulles Intl

44h 31m

2 stops

PER5:00 pmPerth

Sep 19

PER1:15 pmPerth

43h 10m

3 stops

IAD8:25 pmWashington, D.C. Dulles Intl

$2,239

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

Sun 9/27

9:00 pm-7:50 pm

2 stops34h 50m

Perth

Sun 10/4

8:50 pm-8:45 am

2 stops47h 55m

$1,401

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Mon 10/26

9:10 pm-5:35 am

2 stops44h 25m

Perth

Fri 11/6

10:30 am-3:55 pm

2 stops42h 25m

$1,468

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Mon 10/19

6:00 am-6:50 am

2 stops36h 50m

Perth

Sun 10/25

12:25 am-11:59 pm

2 stops35h 34m

$1,484

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Tue 9/15

7:00 am-6:50 am

2 stops35h 50m

Perth

Mon 9/21

8:20 am-11:59 pm

2 stops51h 39m

$1,484

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Thu 12/24

12:14 pm-9:55 am

2 stops32h 41m

Perth

Fri 1/8

10:55 pm-11:23 pm

2 stops37h 28m

$2,294

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Wed 10/7

9:00 pm-10:30 pm

2 stops37h 30m

Perth

Sun 10/18

10:45 pm-3:40 pm

1 stop28h 55m

$2,956

Quickest round-trip

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Mon 9/14

9:00 pm-6:35 pm

1 stop33h 35m

Perth

Mon 9/21

10:45 pm-3:40 pm

1 stop28h 55m

$3,312

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Mon 10/19

9:00 pm-6:35 pm

1 stop33h 35m

Perth

Mon 10/26

10:45 pm-4:55 pm

1 stop30h 10m

$3,328

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Wed 12/30

8:05 pm-6:45 pm

1 stop33h 40m

Perth

Fri 1/22

10:45 pm-8:30 am

1 stop46h 45m

$3,330

Washington, D.C.Perth

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

IADPER

Washington, D.C. Dulles Intl

Fri 12/18

5:50 pm-2:10 pm

2 stops31h 20m

Perth

Sat 1/9

12:15 pm-5:15 pm

2 stops42h 00m

$3,527

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	$685
Fastest flight time	29h 40m
Direct flights	None

The best one-way flight to Perth from Washington, D.C. Dulles Intl Airport in the past 72 hours is $685. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Perth found on momondo in the last 72 hours is $1,401.

The fastest flight from Washington, D.C. Dulles Intl Airport to Perth takes 29h 40m

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 29h 40m.
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 August 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 1,083 reviews		Search Qantas Airways flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.4 3,739 reviews		Search Qatar Airways flights

Rottnest Island

Fremantle

Mandurah

Scarborough

Waikiki

Why use momondo?

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.