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Cheap flights from Washington, D.C. to Perth from $825

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PER
17 Jan — 24 Jan1
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 18 December 2025.

Wed 17/1209:41DCA - PER
2 stops48h 14mCathay Pacific
Mon 22/1200:25PER - DCA
2 stops31h 32mCathay Pacific
Deal found 16/12$3,200
Wed 17/1210:40IAD - PER
2 stops52h 35mMultiple Airlines
Tue 23/1205:35PER - IAD
2 stops47h 20mMultiple Airlines
Deal found 16/12$3,940
Thu 25/1209:36DCA - PER
2 stops32h 19mCathay Pacific
Sat 3/108:30PER - DCA
2 stops38h 12mCathay Pacific
Deal found 17/12$4,205
Wed 17/1217:08IAD - PER
2 stops49h 37mQantas Airways
Wed 7/117:20PER - IAD
2 stops40h 57mQantas Airways
Deal found 16/12$4,812
Wed 17/1220:05IAD - PER
1 stop33h 40mQatar Airways
Tue 23/1222:45PER - IAD
1 stop30h 10mQatar Airways
Deal found 16/12$5,078
Thu 25/1220:05IAD - PER
1 stop26h 50mQatar Airways
Sat 3/115:55PER - IAD
1 stop29h 25mQatar Airways
Deal found 17/12$5,418
Wed 17/1220:05IAD - PER
1 stop26h 50mQatar Airways
Wed 7/115:55PER - IAD
1 stop37h 00mQatar Airways
Deal found 16/12$5,560
Fri 19/1214:35IAD - PER
2 stops50h 05mMultiple Airlines
Wed 31/1210:30PER - IAD
2 stops35h 35mMultiple Airlines
Deal found 16/12$5,594
Wed 17/1215:20BWI - PER
2 stops37h 00mQantas Airways
Tue 23/1205:25PER - BWI
2 stops30h 33mQantas Airways
Deal found 16/12$5,639
Wed 17/1220:40DCA - PER
3 stops52h 50mAir Canada
Tue 23/1223:55PER - DCA
3 stops46h 00mAir Canada
Deal found 16/12$8,967
Thu 25/1209:40DCA - PER
3 stops40h 50mMultiple Airlines
Sat 3/121:55PER - DCA
2 stops48h 00mMultiple Airlines
Deal found 17/12$12,501
Thu 25/1209:40DCA - PER
3 stops40h 50mAir Canada
Sat 3/115:15PER - DCA
3 stops44h 20mAir Canada
Deal found 17/12$13,472

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 18 December 2025.

Round-trip from

$2,122

One-way from

$825

Popular in

September

Cheapest in

August

Average price

$3,528
Cathay Pacific
  • Cathay Pacific
  • 12/3-18/3
  • 4 total stops
  • 69h 11m total
  • Washington, D.C. to Perth
Search Deals
15/1
  • 15/1
  • 3 total stops
  • 48h 55m total
  • Washington, D.C. to Perth
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($221 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($111 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 18 December 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

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Thu 12/3

06:00-06:55

2 stops36h 55m

Perth

Wed 18/3

00:25-20:41

2 stops32h 16m

$2,122

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 16/2

18:46-23:55

2 stops40h 09m

Perth

Wed 25/2

06:40-17:46

2 stops48h 06m

$2,223

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Sat 31/1

21:13-22:55

2 stops60h 42m

Perth

Sat 7/2

08:30-15:36

2 stops44h 06m

$2,267

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Mon 16/2

18:27-05:25

2 stops45h 58m

Perth

Wed 25/2

06:40-17:20

2 stops47h 40m

$2,288

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Thu 12/3

18:46-05:25

2 stops46h 39m

Perth

Thu 19/3

06:40-17:23

2 stops46h 43m

$2,359

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Sat 21/3

18:25-16:50

2 stops58h 25m

Perth

Sat 28/3

23:50-05:13

2 stops41h 23m

$2,365

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Sat 31/1

06:45-13:50

3 stops42h 05m

Perth

Sat 7/2

22:40-19:59

3 stops34h 19m

$2,430

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Thu 12/3

17:52-11:15

2 stops53h 23m

Perth

Thu 19/3

17:20-22:53

2 stops41h 33m

$2,461

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Mon 19/1

17:26-07:45

2 stops49h 19m

Perth

Tue 17/2

22:45-22:48

2 stops37h 03m

$2,510

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Tue 3/3

09:37-06:55

2 stops32h 18m

Perth

Sat 7/3

08:30-09:00

2 stops37h 30m

$2,516

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 60 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

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?

    Cathay Pacific, Air New Zealand, and Qantas Airways can get you from Washington, D.C. to Perth in just under 36h 55m. Your travel time can differ by up to 21h 30m. 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
Mandurah
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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