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$637+ Cheap flights from Dulles Intl (IAD) to Perth (PER)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PER
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Dulles Intl to Perth

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Perth (PER). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$1,284
(Trip.com)

One-way from

$637
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$1,472
From Washington, D.C. Dulles Intl to Perth
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One-way flight from Washington, D.C. Dulles Intl to Perth
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Highest demand for flights based on searches. 17% potential increase in price ($397 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($142 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Perth

Cheapest flights from Dulles Intl to Perth
Explore the most affordable flight options available from Dulles Intl to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This oojo deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:05 pmIAD - PER
2 stops53h 45mAir New Zealand
Mon 1/126:50 pmPER - IAD
2 stops38h 45mAir New Zealand
Deal found 9/13$1,657
This flugladen.de deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:55 amIAD - PER
2 stops53h 35mMultiple Airlines
Mon 9/295:10 amPER - IAD
2 stops39h 30mMultiple Airlines
Deal found 9/13$1,671
This oojo deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:43 pmIAD - PER
2 stops40h 12mMultiple Airlines
Fri 5/11:45 pmPER - IAD
2 stops46h 07mMultiple Airlines
Deal found 9/13$1,841
This KAYAK deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:10 pmIAD - PER
2 stops41h 45mAir New Zealand
Tue 1/136:50 pmPER - IAD
2 stops47h 34mAir New Zealand
Deal found 9/13$2,062
This Cathay Pacific deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:03 pmIAD - PER
2 stops40h 47mCathay Pacific
Sun 11/1612:15 amPER - IAD
2 stops35h 18mCathay Pacific
Deal found 9/12$2,089
This KAYAK deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:10 pmIAD - PER
2 stops41h 45mAir New Zealand
Wed 1/146:50 pmPER - IAD
2 stops38h 59mAir New Zealand
Deal found 9/13$2,112
This oojo deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/49:00 pmIAD - PER
1 stop33h 40mQatar Airways
Sat 10/1110:45 pmPER - IAD
1 stop28h 55mQatar Airways
Deal found 9/13$2,207
This Malaysia Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/299:00 pmIAD - PER
2 stops40h 10mMalaysia Airlines
Fri 10/312:25 amPER - IAD
2 stops42h 55mMalaysia Airlines
Deal found 9/12$2,239
This flugladen.de deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/159:00 pmIAD - PER
1 stop26h 55mQatar Airways
Mon 9/2910:45 pmPER - IAD
1 stop28h 55mQatar Airways
Deal found 9/13$2,251

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Perth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
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

Dulles Intl

Fly to

Perth

Route

Depart

Return

Price

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Thu 11/13

5:03 pm-10:50 pm

2 stops40h 47m

Perth

Mon 11/17

8:30 am-10:33 pm

2 stops51h 03m

$2,089

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sat 10/4

9:00 pm-6:40 pm

1 stop33h 40m

Perth

Sat 10/11

10:45 pm-3:40 pm

1 stop28h 55m

$2,207

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Mon 9/29

9:00 pm-1:10 am

2 stops40h 10m

Perth

Fri 10/31

2:25 am-9:20 am

2 stops42h 55m

$2,239

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Thu 11/13

10:30 am-5:20 pm

1 stop41h 50m

Perth

Mon 11/17

10:20 pm-8:10 am

1 stop46h 50m

$2,369

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Thu 11/13

8:05 pm-12:00 pm

1 stop26h 55m

Perth

Mon 11/17

3:05 pm-3:55 pm

1 stop37h 50m

$2,384

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sat 9/20

5:25 pm-5:50 am

3 stops48h 25m

$666

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Wed 9/17

6:30 pm-5:50 am

3 stops47h 20m

$700

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Thu 9/18

10:17 am-7:40 pm

3 stops45h 23m

$741

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Thu 10/16

1:30 pm-4:30 am

2 stops51h 00m

$766

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Fri 10/10

10:05 pm-7:50 pm

3 stops57h 45m

$838

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 13 results
1
2

Best time to book a flight from Dulles Intl to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Perth

What is the cheapest time of day to fly from IAD to PER?

Find hourly flight availability from Dulles Intl to Perth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Perth at noon. Doing so could potentially save you 26% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Perth

Get insights into the airlines that provide service to Perth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Perth. Reviews last updated September 15, 2025.
Read reviews from past customers who have flown Qantas Airways and Qatar Airways from Washington, D.C. Dulles Intl Airport to Perth. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
905 reviews

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

7.2

Food

6.9

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
905 reviews
Qantas Airways
7.5
Good
905 reviews

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

7.2

Food

6.9

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qatar Airways
7.4
Good
3,624 reviews
Qantas Airways
7.5
Good
905 reviews

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

7.2

Food

6.9

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Perth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Perth from Washington, D.C. Dulles Intl?

    Located just 6.3 mi from the city center, Perth is the airport most travelers will use when flying to Perth from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Perth (PER) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 2 different airlines.

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

    Departing from Washington, D.C. Dulles Intl Airport to Perth will take you 40h 47m. Airlines will cover a distance of 11533 mi.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Perth round-trip?

    Currently priced at $1,097, Qantas Airways will fly you from Washington, D.C. Dulles Intl Airport to Perth and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Qatar Airways for as low as $1,506. Qantas Airways is priced at 40% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Dulles Intl to Perth that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Perth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Perth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Perth.

  • Can I find deals for business class flights from Dulles Intl to Perth?

    Yes. Cheapflights offers flight deals from Dulles Intl to Perth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Perth (average of $1,438). Flying from Washington, D.C. Dulles Intl Airport to Perth in December is currently the most expensive (average of $2,172). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Fremantle
Rottnest Island
Scarborough

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Alternative routes for Dulles Intl to Perth

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Perth flights
Baltimore to Perth flights

Top 2 airlines flying from Dulles Intl to Perth

Discover the top 2 airlines that operate flights from Dulles Intl to Perth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,097Average$1,342FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,506Average$2,089FlexibilityNo cancel feeOn-time68%

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