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Cheap flights from Washington, D.C. to Perth from $842

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 19/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PER
24 Apr — 1 May1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

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 25 March 2026.

Wed 1/414:05
IAD
-
PER
2 stops38h 10m
Multiple Airlines
Wed 15/417:20
PER
-
IAD
2 stops52h 25m
Multiple Airlines
Deal found 25/3$1,751
Thu 23/415:10
IAD
-
PER
2 stops45h 25m
Multiple Airlines
Thu 30/423:15
PER
-
IAD
2 stops46h 30m
Multiple Airlines
Deal found 24/3$1,868
Sat 9/515:10
IAD
-
PER
2 stops45h 25m
Multiple Airlines
Sat 16/523:15
PER
-
IAD
2 stops46h 30m
Multiple Airlines
Deal found 25/3$1,926
Thu 7/515:10
IAD
-
PER
2 stops42h 35m
Multiple Airlines
Thu 14/512:15
PER
-
IAD
2 stops33h 30m
Multiple Airlines
Deal found 23/3$2,310
Wed 6/515:10
IAD
-
PER
2 stops37h 05m
Multiple Airlines
Wed 13/512:15
PER
-
IAD
2 stops33h 30m
Multiple Airlines
Deal found 21/3$2,340
Wed 22/415:10
IAD
-
PER
2 stops50h 40m
Multiple Airlines
Wed 6/512:15
PER
-
IAD
2 stops33h 30m
Multiple Airlines
Deal found 24/3$2,396
Tue 21/415:10
IAD
-
PER
2 stops50h 40m
Multiple Airlines
Tue 28/412:15
PER
-
IAD
2 stops33h 30m
Multiple Airlines
Deal found 22/3$2,397
Fri 27/314:20
IAD
-
PER
2 stops51h 30m
Multiple Airlines
Thu 30/412:15
PER
-
IAD
2 stops33h 30m
Multiple Airlines
Deal found 24/3$2,455
Sun 25/1009:30
DCA
-
PER
2 stops39h 05m
Multiple Airlines
Fri 6/1101:15
PER
-
DCA
2 stops33h 44m
Multiple Airlines
Deal found 22/3$2,651
Mon 13/406:00
DCA
-
PER
2 stops48h 35m
JetBlue
Thu 23/422:45
PER
-
DCA
2 stops36h 14m
JetBlue
Deal found 24/3$2,742
Fri 8/519:16
BWI
-
PER
2 stops45h 54m
Multiple Airlines
Fri 15/513:45
PER
-
BWI
2 stops43h 02m
Multiple Airlines
Deal found 24/3$2,760
Tue 21/416:11
BWI
-
PER
2 stops33h 24m
Qantas Airways
Tue 28/423:55
PER
-
BWI
2 stops30h 32m
Qantas Airways
Deal found 22/3$2,779

Find 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 25 March 2026.

Round-trip from

$1,868

One-way from

$842

Popular in

December

Cheapest in

March

Average price

$1,950
23/4-30/4
  • 23/4-30/4
  • 4 total stops
  • 91h 55m total
  • Washington, D.C. to Perth
Search Deals
19/9
  • 19/9
  • 3 total stops
  • 40h 40m total
  • Washington, D.C. to Perth
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($256 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($69 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 25 March 2026.
Use the filters below to find and compare flights from Washington, D.C. to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Wed 6/5

15:10-21:45

3 stops42h 35m

Perth

Wed 13/5

12:15-09:45

2 stops33h 30m

$2,460

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sun 5/4

14:05-05:50

2 stops51h 45m

Perth

Tue 14/4

23:15-09:45

2 stops46h 30m

$2,641

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Fri 8/5

19:16-05:10

2 stops45h 54m

Perth

Fri 15/5

13:45-20:47

2 stops43h 02m

$2,760

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 16/6

07:00-16:00

2 stops45h 00m

Perth

Tue 30/6

23:45-17:43

2 stops29h 58m

$2,901

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 8/6

19:10-17:00

2 stops33h 50m

Perth

Thu 9/7

00:50-19:19

2 stops30h 29m

$2,911

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Tue 16/6

07:55-16:00

2 stops44h 05m

Perth

Tue 30/6

14:35-22:15

2 stops43h 40m

$2,914

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Wed 22/4

19:17-17:00

2 stops33h 43m

Perth

Fri 8/5

14:35-18:27

2 stops39h 52m

$2,998

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Tue 16/6

19:24-17:00

2 stops33h 36m

Perth

Tue 30/6

16:55-22:47

2 stops41h 52m

$3,033

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 21/4

16:11-13:35

2 stops33h 24m

Perth

Thu 7/5

23:55-18:27

2 stops30h 32m

$3,053

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Thu 9/4

11:41-18:35

2 stops42h 54m

Perth

Sat 25/4

06:15-23:09

2 stops28h 54m

$3,127

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How much does it cost for a return flight from Washington, D.C. to Perth?

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?

    Etihad Airways, Air New Zealand, and Qantas Airways can get you from Washington, D.C. to Perth in just under 33h 50m. Your travel time can differ by up to 17h 55m. Washington, D.C. and Perth are separated by a distance of 18607 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 Baltimore/Washington - Perth, Washington, D.C. Reagan-National - 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.

See more FAQs

Travelling to a place near Perth?

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

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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