Find flights
When to book
FAQs

Cheap flights from Washington, D.C. to Perth from $858

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PER
16 Apr — 23 Apr1
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 17 March 2026.

Fri 3/415:10
IAD
-
PER
2 stops37h 05m
Multiple Airlines
Wed 15/417:20
PER
-
IAD
2 stops52h 25m
Multiple Airlines
Deal found 16/3$1,833
Sun 5/415:10
IAD
-
PER
2 stops37h 05m
Multiple Airlines
Sat 11/401:35
PER
-
IAD
2 stops44h 10m
Multiple Airlines
Deal found 16/3$1,870
Fri 1/515:10
IAD
-
PER
2 stops45h 25m
Multiple Airlines
Fri 8/517:20
PER
-
IAD
2 stops52h 25m
Multiple Airlines
Deal found 16/3$1,980
Fri 3/415:10
IAD
-
PER
2 stops40h 00m
Multiple Airlines
Mon 20/411:40
PER
-
IAD
2 stops34h 05m
Multiple Airlines
Deal found 15/3$1,991
Tue 28/415:10
IAD
-
PER
2 stops40h 30m
Multiple Airlines
Tue 5/507:40
PER
-
IAD
2 stops38h 05m
Multiple Airlines
Deal found 14/3$2,221
Thu 18/622:20
IAD
-
PER
2 stops53h 40m
Air New Zealand
Mon 20/719:50
PER
-
IAD
2 stops41h 05m
Air New Zealand
Deal found 14/3$2,264
Sat 2/515:10
IAD
-
PER
2 stops45h 30m
Multiple Airlines
Sun 17/512:15
PER
-
IAD
2 stops33h 30m
Multiple Airlines
Deal found 14/3$2,293
Wed 29/415:10
IAD
-
PER
2 stops50h 40m
Multiple Airlines
Wed 6/512:15
PER
-
IAD
2 stops33h 30m
Multiple Airlines
Deal found 15/3$2,305
Tue 28/406:23
BWI
-
PER
2 stops51h 52m
Air New Zealand
Tue 5/519:50
PER
-
BWI
2 stops56h 43m
Air New Zealand
Deal found 14/3$2,315
Thu 30/412:47
BWI
-
PER
2 stops45h 28m
Air New Zealand
Fri 22/519:50
PER
-
BWI
2 stops38h 55m
Air New Zealand
Deal found 15/3$2,317
Thu 30/414:35
DCA
-
PER
2 stops43h 40m
Air New Zealand
Fri 22/519:50
PER
-
DCA
2 stops38h 25m
Air New Zealand
Deal found 15/3$2,317
Tue 28/419:59
DCA
-
PER
2 stops56h 01m
Air New Zealand
Tue 5/519:50
PER
-
DCA
2 stops38h 25m
Air New Zealand
Deal found 14/3$2,333

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 17 March 2026.

Round-trip from

$1,833

One-way from

$858

Popular in

December

Cheapest in

March

Average price

$1,931
3/4-15/4
  • 3/4-15/4
  • 4 total stops
  • 89h 30m total
  • Washington, D.C. to Perth
Search Deals
10/9
  • 10/9
  • 3 total stops
  • 50h 44m total
  • Washington, D.C. to Perth
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($251 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($67 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 17 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

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 16/6

07:00-22:15

2 stops51h 15m

Perth

Tue 30/6

23:45-07:14

2 stops43h 29m

$2,508

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Fri 3/4

18:30-18:35

2 stops36h 05m

Perth

Mon 20/4

22:45-22:59

2 stops36h 14m

$2,535

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Fri 1/5

09:59-12:30

2 stops38h 31m

Perth

Fri 8/5

13:45-20:00

2 stops42h 15m

$2,682

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Fri 1/5

12:47-16:00

2 stops39h 13m

Perth

Fri 8/5

16:25-17:18

2 stops36h 53m

$2,738

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Tue 16/6

17:59-22:15

2 stops40h 16m

Perth

Tue 30/6

12:25-22:15

2 stops45h 50m

$2,823

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sun 26/4

11:00-14:50

2 stops39h 50m

Perth

Wed 29/4

02:10-08:40

2 stops42h 30m

$2,900

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 1/6

15:03-11:40

3 stops32h 37m

Perth

Sat 25/7

13:15-17:43

2 stops40h 28m

$2,918

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 28/4

17:50-12:30

3 stops54h 40m

Perth

Tue 5/5

22:40-17:18

2 stops30h 38m

$2,955

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 27/4

17:50-12:30

3 stops54h 40m

Perth

Mon 4/5

22:40-17:18

2 stops30h 38m

$2,955

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sun 19/4

15:10-21:45

3 stops42h 35m

Perth

Mon 4/5

08:10-09:45

2 stops37h 35m

$3,018

Flights are sorted by cheapest return flights first.

Deals found on 13/3

Showing 1-10 of 53 resultsSorted by cheapest first
1
2
3
...
6

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?

    Air New Zealand, JetBlue, and Malaysia Airlines can get you from Washington, D.C. to Perth in just under 36h 05m. Your travel time can differ by up to 15h 10m. 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 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.