Find flights
When to book
FAQs

Cheap flights from Washington, D.C. to Perth from $1,212

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PER
19 May — 26 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 19 April 2026.

Mon 1/617:16
DCA
-
PER
2 stops29h 59m
Qantas Airways
Mon 8/623:55
PER
-
DCA
2 stops33h 35m
Qantas Airways
Deal found 17/4$2,332
Fri 11/909:30
DCA
-
PER
2 stops41h 10m
Multiple Airlines
Fri 18/913:45
PER
-
DCA
2 stops42h 15m
Multiple Airlines
Deal found 14/4$2,338
Tue 16/619:10
BWI
-
PER
2 stops33h 50m
Qantas Airways
Tue 30/623:55
PER
-
BWI
2 stops31h 25m
Qantas Airways
Deal found 15/4$2,349
Sun 8/1112:59
DCA
-
PER
2 stops29h 46m
Multiple Airlines
Sat 14/1113:25
PER
-
DCA
2 stops43h 35m
Multiple Airlines
Deal found 16/4$2,402
Sat 26/917:46
IAD
-
PER
2 stops47h 24m
Multiple Airlines
Sat 10/1001:10
PER
-
IAD
2 stops34h 49m
Multiple Airlines
Deal found 16/4$2,417
Tue 16/617:16
DCA
-
PER
2 stops35h 44m
Qantas Airways
Tue 30/623:45
PER
-
DCA
2 stops33h 45m
Qantas Airways
Deal found 14/4$2,420
Sun 8/1115:23
BWI
-
PER
2 stops32h 02m
Multiple Airlines
Sat 14/1122:55
PER
-
BWI
2 stops36h 59m
Multiple Airlines
Deal found 16/4$2,430
Sun 26/417:59
IAD
-
PER
2 stops53h 16m
Qantas Airways
Sun 10/516:25
PER
-
IAD
2 stops43h 01m
Qantas Airways
Deal found 18/4$2,431
Sat 7/1120:30
IAD
-
PER
2 stops45h 25m
SWISS
Mon 16/1108:30
PER
-
IAD
2 stops45h 10m
SWISS
Deal found 16/4$2,436
Tue 16/619:24
IAD
-
PER
2 stops32h 01m
Qantas Airways
Tue 30/623:55
PER
-
IAD
2 stops34h 52m
Qantas Airways
Deal found 14/4$2,448
Fri 6/1120:30
IAD
-
PER
2 stops45h 25m
SWISS
Mon 16/1108:30
PER
-
IAD
2 stops45h 10m
SWISS
Deal found 16/4$2,450
Sun 26/419:17
BWI
-
PER
2 stops49h 33m
Qantas Airways
Mon 4/516:25
PER
-
BWI
2 stops42h 44m
Qantas Airways
Deal found 16/4$2,465

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 19 April 2026.

Round-trip from

$2,332

One-way from

$1,212

Popular in

October

Cheapest in

June

Average price

$3,073
Qantas Airways
  • Qantas Airways
  • 1/6-8/6
  • 4 total stops
  • 63h 34m total
  • Washington, D.C. to Perth
Search Deals
30/4
  • 30/4
  • 3 total stops
  • 48h 25m total
  • Washington, D.C. to Perth
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($183 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($56 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 19 April 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

19:10-17:00

2 stops33h 50m

Perth

Tue 30/6

23:55-19:20

2 stops31h 25m

$2,349

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 1/6

15:03-11:40

3 stops32h 37m

Perth

Mon 8/6

23:45-17:57

2 stops30h 12m

$2,519

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 2/6

15:03-12:30

3 stops33h 27m

Perth

Tue 9/6

18:10-17:43

2 stops35h 33m

$2,539

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Sun 31/5

17:16-13:35

2 stops32h 19m

Perth

Sun 7/6

23:55-19:13

2 stops31h 18m

$2,590

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Thu 17/9

17:45-12:30

2 stops30h 45m

Perth

Mon 21/9

22:40-17:50

2 stops31h 10m

$2,602

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Thu 17/9

19:10-17:00

2 stops33h 50m

Perth

Mon 21/9

23:55-19:27

2 stops31h 32m

$2,628

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Tue 16/6

17:16-13:35

2 stops32h 19m

Perth

Tue 30/6

10:30-20:00

2 stops45h 30m

$2,698

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sat 19/9

21:00-01:10

2 stops40h 10m

Perth

Tue 22/9

02:10-15:40

2 stops49h 30m

$2,954
Fastest return journey

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Fri 1/5

21:00-11:55

1 stop26h 55m

Perth

Mon 11/5

22:45-18:10

1 stop31h 25m

$2,975

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Tue 16/6

17:55-14:40

2 stops32h 45m

Perth

Tue 30/6

23:55-16:26

2 stops28h 31m

$3,074

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 33 resultsSorted by cheapest first
1
2
3
4

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

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Perth (average of $1,666). Flying from Washington, D.C. to Perth in April is currently the most expensive (average of $3,073). 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.

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?

    Qantas Airways, United Airlines, and Malaysia Airlines can get you from Washington, D.C. to Perth in just under 32h 37m. Your travel time can differ by up to 7h 33m. 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 Washington, D.C. Dulles Intl - Perth, Baltimore/Washington - Perth and Washington, D.C. Reagan-National - 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, August is the cheapest month in which you can book a flight from Washington, D.C. to Perth (average of $1,666). Flying from Washington, D.C. to Perth in April is currently the most expensive (average of $3,073). 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
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.