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Cheap flights from Washington, D.C. to Perth from $773

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PER
5 Sep — 12 Sep1
1 adult

Cheap flight deals from Washington, D.C. to Perth

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 31 August 2025.

Round-trip from

$1,910

One-way from

$773

Popular in

October

Cheapest in

February

Average price

$1,852
13/10-20/10
  • 13/10-20/10
  • 4 total stops
  • 91h 05m total
  • Washington, D.C. to Perth
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14/10
  • 14/10
  • 2 total stops
  • 37h 50m total
  • Washington, D.C. to Perth
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($911 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease ($174 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Washington, D.C. to Perth

Cheapest flights from Washington, D.C. to Perth
Explore the most affordable flight options available from Washington, D.C. to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 August 2025.

Mon 13/1022:14IAD - PER
2 stops45h 11mMultiple Airlines
Mon 20/1008:45PER - IAD
2 stops45h 54mMultiple Airlines
Deal found 28/8$1,910
Sat 27/918:50IAD - PER
2 stops45h 40mMultiple Airlines
Sat 4/1005:10PER - IAD
2 stops46h 35mMultiple Airlines
Deal found 30/8$1,924
Tue 14/1005:35BWI - PER
2 stops53h 05mMultiple Airlines
Mon 20/1000:10PER - BWI
3 stops46h 18mMultiple Airlines
Deal found 30/8$2,072
Fri 26/913:30IAD - PER
2 stops52h 20mMultiple Airlines
Fri 3/1014:50PER - IAD
2 stops40h 55mMultiple Airlines
Deal found 31/8$2,190
Mon 13/1005:35BWI - PER
3 stops47h 35mMultiple Airlines
Mon 20/1007:20PER - BWI
3 stops35h 15mMultiple Airlines
Deal found 28/8$2,234
Tue 9/1215:20BWI - PER
2 stops31h 45mQantas Airways
Tue 16/1222:40PER - BWI
2 stops28h 48mQantas Airways
Deal found 30/8$2,349
Tue 9/1215:20BWI - PER
2 stops43h 30mQantas Airways
Wed 17/1217:45PER - BWI
2 stops33h 36mQantas Airways
Deal found 30/8$2,390
Mon 8/1215:20BWI - PER
2 stops40h 55mQantas Airways
Tue 16/1222:40PER - BWI
2 stops28h 48mQantas Airways
Deal found 30/8$2,469
Tue 14/1011:50BWI - PER
2 stops42h 50mQatar Airways
Tue 21/1022:45PER - BWI
2 stops37h 03mQatar Airways
Deal found 30/8$2,697
Wed 17/922:05IAD - PER
2 stops38h 35mMultiple Airlines
Sat 11/1012:25PER - IAD
2 stops39h 45mMultiple Airlines
Deal found 30/8$2,729
Fri 26/906:45DCA - PER
2 stops27h 55mCathay Pacific
Fri 3/1009:15PER - DCA
2 stops50h 44mCathay Pacific
Deal found 29/8$2,818
Thu 2/1008:59DCA - PER
2 stops41h 41mMultiple Airlines
Wed 29/1013:50PER - DCA
2 stops42h 10mMultiple Airlines
Deal found 29/8$2,871

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington, D.C. 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 647,157 searches. Data last updated 31 August 2025.
Use the filters below to find and compare flights from Washington, D.C. to Perth that are best for you.

Fly from

Washington, D.C.

Fly to

Perth

Route

Depart

Return

Price

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Mon 13/10

22:14-07:25

2 stops45h 11m

Perth

Mon 20/10

08:45-18:39

2 stops45h 54m

$1,910

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sat 27/9

18:50-04:30

2 stops45h 40m

Perth

Sat 4/10

05:10-15:45

2 stops46h 35m

$1,924

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 14/10

05:35-22:40

2 stops53h 05m

Perth

Mon 20/10

00:10-10:28

3 stops46h 18m

$2,072

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Fri 26/9

13:30-05:50

2 stops52h 20m

Perth

Fri 3/10

14:50-19:45

2 stops40h 55m

$2,190

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 13/10

05:35-17:10

3 stops47h 35m

Perth

Mon 20/10

07:20-06:35

3 stops35h 15m

$2,234

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 9/12

15:20-12:05

2 stops31h 45m

Perth

Tue 16/12

22:40-14:28

2 stops28h 48m

$2,349

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 9/12

15:20-23:50

2 stops43h 30m

Perth

Wed 17/12

17:45-14:21

2 stops33h 36m

$2,390

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 8/12

15:20-23:50

2 stops43h 30m

Perth

Wed 17/12

22:40-18:20

2 stops32h 40m

$2,469

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 8/12

15:20-21:15

2 stops40h 55m

Perth

Tue 16/12

22:40-14:28

2 stops28h 48m

$2,469

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 14/10

11:50-18:40

2 stops42h 50m

Perth

Tue 21/10

22:45-23:48

2 stops37h 03m

$2,697

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 45 results
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Best time to book a flight from Washington, D.C. to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth from Washington, D.C. with our price prediction graph.
Estimated return 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. to Perth
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

    Located just 10.2 km from the city centre, Perth is the airport most travellers will use when flying to Perth from Washington, D.C.. Booking flights from Washington, D.C. to Perth (PER) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. from 0 different airlines.

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

    Qantas Airways and Cathay Pacific can get you from Washington, D.C. to Perth in just under 27h 55m. Your travel time can differ by up to 3h 50m. Washington, D.C. and Perth are separated by a distance of 18598 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Washington, D.C. to Perth?

    The most popular flight routes from Washington, D.C. to Perth are Washington, D.C. Reagan-National - Perth, Baltimore/Washington - Perth and Washington, D.C. Dulles Intl - Perth.

  • Can I find deals for flights from Washington, D.C. to Perth that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Perth flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Perth?

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

  • Can I find deals for business class flights from Washington, D.C. to Perth?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Perth?

    Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Perth (average of $286). Flying from Washington, D.C. to Perth in December is currently the most expensive (average of $409). 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

Travelling to a place near Perth?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Perth

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

Fly with Cheapflights

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How does Cheapflights help users find flights from Washington, D.C. to Perth?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Perth. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Perth?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Washington, D.C. to Perth for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Washington, D.C. to Perth with no change fees?

Need flexible booking options for your flight to Perth from Washington, D.C.? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Perth become cheaper?

Yes, Cheapflights offers price alerts on Washington, D.C. to Perth flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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